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549 results on '"Dambasuren E"'

1. The Cleo Rich Detector

Author

Artuso, M., Ayad, R., Bukin, K., Efimov, A., Boulahouache, C., Dambasuren, E., Kopp, S., Li, Ji, Majumder, G., Menaa, N., Mountain, R., Schuh, S., Skwarnicki, T., Stone, S., Viehhauser, G., Wang, J. C., Coan, T. E., Fadeyev, V., Maravin, Y., Volobouev, I., Ye, J., Anderson, S., Kubota, Y., and Smith, A.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

We describe the design, construction and performance of a Ring Imaging Cherenkov Detector (RICH) constructed to identify charged particles in the CLEO experiment. Cherenkov radiation occurs in LiF crystals, both planar and ones with a novel ``sawtooth''-shaped exit surface. Photons in the wavelength interval 135--165 nm are detected using multi-wire chambers filled with a mixture of methane gas and triethylamine vapor. Excellent pion/kaon separation is demonstrated., Comment: 75 pages, 57 figures, (updated July 26, 2005 to reflect reviewers comments), to be published in NIM A

Published
2005
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2. Construction, Pattern Recognition and Performance of the CLEO III LiF-TEA RICH Detector

Author

Artuso, M., Ayad, R., Bukin, K., Efimov, A., Boulahouache, C., Dambasuren, E., Kopp, S., Mountain, R., Majumder, G., Schuh, S., Skwarnicki, T., Stone, S., Viehhauser, G., Wang, J. C., Coan, T. E., Fadeyev, V., Maravin, Y., Volobouev, I., Ye, J., Anderson, S., Kubota, Y., and Smith, A.

Subjects
High Energy Physics - Experiment
Abstract

We briefly describe the design, construction and performance of the LiF-Tea RICH detector built to identify charged particles in the CLEO III experiment. Excellent pion/kaon separation is demonstrated., Comment: Presented at Fourth Workshop on RICH Detectors, Pylos Greece, June, 2002, to appear in the proceedings. (10 pages, 14 figures.)

Published
2002
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3. The CLEO-III RICH Detector and Beam Test Results

Author

Wang, J. C., Artuso, M., Ayad, R., Azfar, F., Dambasuren, E., Efimov, A., Kopp, S., Majumder, G., Mountain, R., Schuh, S., Skwarnicki, T., Stone, S., Viehhauser, G., Anderson, S., Smith, A., Kubota, Y., Lipeles, E., Coan, T., Staeck, J., Fadeyev, V., Volobouev, I., and Ye, J.

Subjects
High Energy Physics - Experiment
Abstract

We are constructing a Ring Imaging Cherenkov detector (RICH) for the CLEO III upgrade for precision charged hadron identification. The RICH uses plane and sawtooth LiF crystals as radiators, MWPCs as photon detectors with TEA as the photo-sensitive material, and low-noise Viking readout electronics. Results of a beam test of the first two out of total 30 sectors are presented., Comment: 7 pages, 8 figures, TeX (or Latex, etc), talk presented by J. C. Wang at DPF'99, Los Angeles, CA, 5-9 January 1999; to be published in the conference proceedings

Published
1999

4. Further Search for the Two-Photon Production of the Glueball Candidate fJ(2220)

Author

Alam, MS, Athar, SB, Ling, Z, Mahmood, AH, Timm, S, Wappler, F, Anastassov, A, Duboscq, JE, Gan, KK, Hart, T, Honscheid, K, Kagan, H, Kass, R, Lee, J, Schwarthoff, H, Spencer, MB, Wolf, A, Zoeller, MM, Richichi, SJ, Severini, H, Skubic, P, Undrus, A, Bishai, M, Fast, J, Hinson, JW, Menon, N, Miller, DH, Shibata, EI, Shipsey, IPJ, Glenn, S, Kwon, Y, Lyon, AL, Roberts, S, Thorndike, EH, Jessop, CP, Lingel, K, Marsiske, H, Perl, ML, Savinov, V, Ugolini, D, Zhou, X, Coan, TE, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Shelkov, V, Staeck, J, Stroynowski, R, Volobouev, I, Ye, J, Artuso, M, Dambasuren, E, Efimov, A, Kopp, S, Moneti, GC, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Titov, A, Viehhauser, G, Wang, JC, Bartelt, J, Csorna, SE, McLean, KW, Marka, S, Godang, R, Kinoshita, K, Lai, IC, Pomianowski, P, Schrenk, S, Bonvicini, G, Cinabro, D, Greene, R, Perera, LP, Zhou, GJ, Chadhha, M, Chan, S, Eigen, G, Miller, JS, Schmidtler, M, Urheim, J, Weinstein, AJ, Würthwein, F, Bliss, DW, Jaffe, DE, Masek, G, Paar, HP, Potter, EM, Prell, S, Sivertz, M, Sharma, V, Asner, DM, Gronberg, J, Hill, TS, Lange, DJ, Morrison, RJ, Nelson, HN, and Nelson, TK

Subjects
hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract

The CLEO II detector at the e+e− storage ring CESR has been used to search for two-photon production of the fJ(2220) decaying into π+π−. No evidence for a signal is found in 4.77fb−1 of data and a 95% C.L. upper limit on [τγγBπ+π−]fJ(2220) of 2.5 eV is set. If this result is combined with the BES Collaboration's measurement of fJ(2220)→π+π− in radiative J/Ψ decay and the recent CLEO result for [τγγBK0SK0S]fJ(2220), a 95% C.L. lower limit on the stickiness of 102 is obtained. This result for the stickiness provides further support for a substantial neutral parton content in the fJ(2220). © 1998 The American Physical Society.

Published
1998

5. Search for a scalar bottom quark with mass 3.5-4.5 GeV/c(2)

Author

Savinov, V, Coan, T, Fadeyev, V, Gao, Y, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, Dambasuren, E, Karamov, S, Majumder, G, Moneti, G, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Wang, J, Wolf, A, Wu, J, and Kopp, S

Published
2016

6. Observation of B --> K(+/-) pi(0) and B --> (K)0 pi(0), and evidence for B --> pi(+)pi(-)

Author

Cronin-Hennessey, D, Kwon, Y, Lyon, A, Thorndike, E, Jessop, C, Mariske, H, Perl, M, Savinov, V, Ugolini, D, Zhou, X, Coan, T, Fadeyez, V, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, Dambasuren, E, Karamnov, S, Kopp, S, and Majumder, G

Abstract

We have studied charmless hadronic decays of B mesons into two-body final states with kaons and pions and observe three new processes with the following branching fractions: beta(B-->pi(+)pi(-)) = (4.3(+1. 6)(-1.4)+/-0.5)x10(-6), beta(B-->K(0)pi(0)) = (14.6(+5.9+2.4)(-5.1-3. 3))x10(-6), and beta(B-->K(+)/-pi(0)) = (11.6(+3.0+1.4)(-2.7-1.3))x10(-6). We also update our previous measurements for the decays B-->K(+)/-pi(-/+) and B+/--->K(0)pi(+/-).

Published
2016
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7. Observation of B(0) --> D0pi(0) and B(0) -->D(*0)pi(0)

Author

Coan, T, Gao, Y, Liu, F, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Artuso, M, Boulahouache, C, Bukin, K, Dambasuren, E, Mountain, R, Skwarnicki, T, Stone, S, Wang, J, Mahmood, A, Csorna, SE, Danko, I, Xu, Z, Bonvicini, G, Cinabro, D, Dubrovin, M, McGee, S, Bornheim, A, and Lipeles, E

Abstract

We have studied the color-suppressed hadronic decays of neutral B mesons into the final states D*0pi(0). Using 9.67 x 10(6) BB pairs collected with the CLEO detector, we observe the decays B( 0) --> D0pi(0) and B( 0) -->D(*0)pi(0) with the branching fractions BB( 0) -->D0pi(0)) = (2.74(+0.36)(-0.32) +/- 0.55)x10(-4) and BB( 0) -->D(*0)pi(0)) = (2.20(+0.59)(-0.52) +/- 0.79)x10(-4). The first error is statistical and the second systematic. The statistical significance of the D0pi(0) signal is 12.1sigma ( 5.9sigma for D(*0)pi(0)). Utilizing the B( 0) -->D*0)pi(0) branching fractions we determine the strong phases delta(I,D(*)) between isospin 1/2 and 3/2 amplitudes in the Dpi and D*pi final states to be cosdelta(I,D) = 0.89 +/-0.08 and cosdelta(I,D*) = 0.89 +/- 0.08, respectively.

Published
2016

8. Evidence for the decay D0 → Κ+π-π+π

Author

Dytman, SA, Savinov, V, Chen, S, Hinson, J, Lee, J, Miller, D, Shibata, E, Shipsey, I, Pavlunin, V, Cronin-Hennessy, D, Lyon, A, Park, W, Thorndike, E, Coan, T, Gao, Y, Liu, F, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Artuso, M, Boulahouache, C, Bukin, K, Dambasuren, E, and Majumder, G

Abstract

We present a search for the "wrong-sign" decay D0 → Κ+π-π+π- using 9 fb-1 of e+e- collisions on and just below the Y(4S) resonance. This decay can occur either through a doubly Cabibbo-suppressed process or through mixing to a D̄0 followed by a Cabibbo-favored process. Our result for the time-integrated wrong-sign rate relative to the decay D0 → Κ-π+π-π+ is (0.0041-0.0011+0.0012(stat)±0.0004(syst))×(1.07 ±0.10)(phase space), which has a statistical significance of 3.9 standard deviations. ©2001 The American Physical Society.

Published
2016

10. Search for the decay b̄0 →0γ

Author

Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, Dambasuren, E, Karamov, S, Kopp, S, Majumder, G, Moneti, G, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Viehhauser, G, Wang, J, Wolf, A, Wu, J, Csorna, SE, Danko, I, McLean, K, Marka, S, Xu, Z, Godang, R, Kinoshita, K, and Lai, L

Abstract

We report results of a search for the rare radiative decay B̄0 → D0γ. Using 9.66 × 10 6 BB̄ meson pairs collected with the CLEO detector at the Cornell Electron Storage Ring, we set an upper limit on the branching ratio for this decay of 5.0× 10-5 at 90% C.L. This provides evidence that the anomalous enhancement is absent in W-exchange processes and that weak, radiative B decays are dominated by the short-distance b → sγ mechanism in the standard model. © 2000 The American Physical Society.

Published
2016
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11. Search for exclusive rare baryonic decays of B mesons

Author

Coan, T, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Dambasuren, E, Kopp, S, Moneti, G, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Titov, A, Viehhauser, G, Wang, J, Bartelt, J, Csorna, SE, McLean, K, Marka, S, Xu, Z, and Godang, R

Abstract

We report the results of a search for the rare baryonic decay modes B0→ΛΛ̄, B+→Λ̄p, B0→Λ̄pπ-, and B0→pp̄ (and their charge conjugate states) using 5.8 × 106 BB̄ pairs collected with the CLEO detector. We see no statistically significant signals in any of these modes and set 90% confidence level upper limits on their branching fractions, B(B0→ΛΛ̄)

Published
2016

12. Evidence for the decay D-0 -> K+pi(-)pi(+)pi(-)

Author

Dytman, SA, Savinov, V, Chen, S, Hinson, J, Lee, J, Miller, D, Shibata, E, Shipsey, I, Pavlunin, V, Cronin-Hennessy, D, Lyon, A, Park, W, Thorndike, E, Coan, T, Gao, Y, Liu, F, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Artuso, M, Boulahouache, C, Bukin, K, Dambasuren, E, and Majumder, G

Abstract

We present a search for the "wrong-sign" decay D0→K+π-π+π - using 9 fb-1 of e+e- collisions on and just below the Y(4S) resonance. This decay can occur either through a doubly Cabibbo-suppressed process or through mixing to a D̄0 followed by a Cabibbo-favored process. Our result for the time-integrated wrong-sign rate relative to the decay D0→K-π+π-π + is (0.0041-0.0011+0.0012(stat)±0.0004(syst)) ×(1.07±0.10)(phase space), which has a statistical significance of 3.9 standard deviations.

Published
2016
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13. Observation of Two Narrow States Decaying into Ξ+ cγ and Ξ0 cγ

Author

Jessop, C, Lingel, K, Marsiske, H, Perl, M, Savinov, V, Ugolini, D, Zhou, X, Coan, T, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Dambasuren, E, Kopp, S, Moneti, G, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Titov, A, and Viehhauser, G

Published
2016

14. Observation of B → K±π0 and B → K0π0, and evidence for B → π++π

Author

Cronin-Hennessy, D, Kwon, Y, Lyon, A, Thorndike, E, Jessop, C, Marsiske, H, Perl, M, Savinov, V, Ugolini, D, Zhou, X, Coan, T, Fadeyev, V, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, Dambasuren, E, Karamnov, S, Kopp, S, and Majumder, G

Abstract

We have studied charmless hadronic decays of B mesons into two-body final states with kaons and pions and observe three new processes with the following branching fractions: ℬ(B → π+π-) = (4.3-1.4+1.6 ± 0.5) × 10-6, ℬ(B → K0π0) = (14.6-5.1-3.3+5.9+2.4) × 10-6, and ℬ(B → K±π0) = (11.6-2.7-1.3+3.0+1.4) × 10-6. We also update our previous measurements for the decays B → K±π∓ and B± → K0π±. © 2000 The American Physical Society.

Published
2016

15. Branching fraction and photon energy spectrum for b --> s gamma

Author

Chen, S, Hinson, J, Lee, J, Miller, D, Pavlunin, V, Shibata, E, Shipsey, I, Cronin-Hennessy, D, Lyon, A, Thorndike, E, Coan, T, Fadeyev, V, Gao, Y, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Benslama, K, Boulahouache, C, Bukin, K, Dambasuren, E, Majumder, G, and Mountain, R

Abstract

We have measured the branching fraction and photon energy spectrum for the radiative penguin process b-->s gamma. We find Beta(b-->s gamma) = (3.21+/-0.43+/-0.27(+0.18)(-0.10))x10(-4), where the errors are statistical, systematic, and from theory corrections. We obtain first and second moments of the photon energy spectrum above 2.0 GeV, = 2.346+/-0.032+/-0.011 GeV, and -(2) = 0.0226+/-0.0066+/-0.0020 GeV(2), where the errors are statistical and systematic. From the first moment, we obtain (in the modified minimal subtraction renormalization scheme, to order 1/M(3)(B) and beta(0)alpha(2)(s)) the heavy quark effective theory parameter Lambda = 0.35+/-0.08+/-0.10 GeV.

Published
2016
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16. First observation of the decay B0 → D*+D*

Author

Artuso, M, Dambasuren, E, Kopp, S, Moneti, G, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Titov, A, Viehhauser, G, Wang, J, Csorna, SE, McLean, K, Marka, S, Xu, Z, Godang, R, Kinoshita, K, Lai, I, Pomianowski, P, Schrenk, S, Bonvicini, G, Cinabro, D, Greene, R, Perera, L, and Zhou, G

Abstract

We have observed four fully reconstructed B0 → D*+D*- candidates in 5.8 × 106 Υ(4S) → BB̄ decays recorded with the CLEO detector. The background is estimated to be 0.31 ± 0.10 events. The probability that the background could produce four or more signal candidates with the observed distribution among D*+ and D*- decay modes is 1.1 × 10-4. The measured decay rate, B(B0 → D*+D*-) = [6.2-2.9+4.0(stat) ± 1.0(syst)] × 10-4, is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry. © 1999 The American Physical Society.

Published
2016

17. Upsilon dipion transitions at energies near the Upsilon(4S)

Author

Glenn, S, Kwon, Y, Lyon, A, Roberts, S, Thorndike, E, Jessop, C, Lingel, K, Marsiske, H, Perl, M, Savinov, V, Ugolini, D, Zhou, X, Coan, T, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, T, Dambasuren, E, Kopp, S, Moneti, G, and Mountain, R

Published
2016
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18. Observation of new states decaying into Lambda+(c)pi(-)pi(+)

Author

Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, Dambasuren, E, Karamov, S, Majumder, G, Moneti, G, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Wang, J, Wolf, A, Wu, J, Kopp, S, Kostin, M, Mahmood, A, Csorna, SE, Danko, I, McLean, K, Xu, Z, Godang, R, Bonvicini, G, and Cinabro, D

Abstract

Using 13.7 fb(-1) of data recorded by the CLEO detector at the Cornell Electron Storage Ring, we investigate the spectrum of charmed baryons which decay into Lambda+(c)pi(-)pi(+) and are more massive than the Lambda+(c)(2625) baryon. We find evidence for two new states: one is broad and has an invariant mass roughly 480 MeV above that of the Lambda+(c) baryon; the other is narrow with an invariant mass of 596+/-1+/-2 MeV above the Lambda+(c) mass.

Published
2016

19. Search for lepton-flavor-violating decays of B mesons

Author

Edwards, KW, Ammar, R, Besson, D, Zhao, X, Anderson, S, Frolov, VV, Kubota, Y, Lee, SJ, Li, SZ, Poling, R, Smith, A, Stepaniak, CJ, Urheim, J, Metreveli, Z, Seth, KK, Tomaradze, A, Zweber, P, Ahmed, S, Alam, MS, Jian, L, Saleem, M, Wappler, F, Eckhart, E, Gan, KK, Gwon, C, Hart, T, Honscheid, K, Hufnagel, D, Kagan, H, Kass, R, Pedlar, TK, Thayer, JB, von Toerne, E, Wilksen, T, Zoeller, MM, Muramatsu, H, Richichi, SJ, Severini, H, Skubic, P, Dytman, SA, Mueller, JA, Nam, S, Savinov, V, Chen, S, Hinson, JW, Lee, J, Miller, DH, Pavlunin, V, Shibata, EI, Shipsey, IPJ, Cronin-Hennessy, D, Lyon, AL, Park, CS, Park, W, Thorndike, EH, Coan, TE, Gao, YS, Liu, F, Maravin, Y, Narsky, I, Stroynowski, R, Artuso, M, Boulahouache, C, Bukin, K, Dambasuren, E, Khroustalev, K, Mountain, R, Nandakumar, R, Skwarnicki, T, Stone, S, Wang, JC, Mahmood, AH, Csorna, SE, Danko, I, Xu, Z, Bonvicini, G, Cinabro, D, Dubrovin, M, McGee, S, Bornheim, A, Lipeles, E, Pappas, SP, Shapiro, A, Sun, WM, Weinstein, AJ, Masek, G, Paar, HP, Mahapatra, R, Briere, RA, Chen, GP, Ferguson, T, Tatishvili, G, Vogel, H, Adam, NE, Alexander, JP, Berkelman, K, Blanc, F, Boisvert, V, Cassel, DG, Drell, PS, Duboscq, JE, Ecklund, KM, Ehrlich, R, Gibbons, L, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hsu, L, Jones, CD, Kandaswamy, J, Kreinick, DL, Magerkurth, A, Mahlke-Kruger, H, Meyer, TO, Mistry, NB, Nordberg, E, Patterson, JR, Peterson, D, Pivarski, J, Riley, D, Sadoff, AJ, Schwarthoff, H, Shepherd, MR, Thayer, JG, Urner, D, Valant-Spaight, B, Viehhauser, G, Warburton, A, Weinberger, M, Athar, SB, Avery, P, Breva-Newell, L, Potlia, V, Stoeck, H, Yelton, J, Brandenburg, G, Ershov, A, Kim, DYJ, Wilson, R, Benslama, K, Eisenstein, BI, Ernst, J, Gollin, GD, Hans, RM, Karliner, I, Lowrey, N, Marsh, MA, Plager, C, Sedlack, C, Selen, M, Thaler, JJ, Williams, J, and Collaboration, CLEO

Subjects
Nuclear physics, Physics, High Energy Physics - Experiment (hep-ex), Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, FOS: Physical sciences, B meson, Flavor, High Energy Physics - Experiment, Lepton
Abstract

We have searched a sample of 9.6 million BB-bar events for the lepton-flavor-violating decays B --> h e^{+-} mu^{-+}, B^+ --> h^- e^+ e^+, B^+ --> h^- e^+ mu^+, and B^+ --> h^- mu^+ mu^+, where h is pi, K, rho, and K*(892), a total of sixteen modes. We find no evidence for these decays, and place 90% confidence level upper limits on their branching fractions that range from 1.0 to 8.3 X 10^{-6}., 8 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS, PRD RC

Published
2016
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20. Observation of the Omega(0)(c) Charmed Baryon at CLEO

Author

Cronin-Hennessy, D, Lyon, A, Thorndike, E, Savinov, V, Coan, T, Fadeyev, V, Gao, Y, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, Dambasuren, E, Karamov, S, Majumder, G, Moneti, G, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, and Wang, J

Abstract

The CLEO experiment at the CESR collider has used 13.7 fb(-1) of data to search for the production of the Omega(0)(c) (css ground state) in e(+)e(-) collisions at square root of (s) approximately 10.6 GeV. The modes used to study the Omega(0)(c) are Omega(-)pi(+), Omega(-)pi(+)pi(0), Xi-K-pi(+)pi(+), Xi0K-pi(+), and Omega(-)pi(+)pi(+)pi(-). We observe a signal of 40.4+/-9.0(stat) events at a mass of 2694.6+/-2.6(stat)+/-1.9(syst) MeV/c(2), for all modes combined.

Published
2016

22. Y dipion transitions at energies near the Y(4S)

Author

Glenn, S, Kwon, Y, Lyon, A, Roberts, S, Thorndike, E, Jessop, C, Lingel, K, Marsiske, H, Perl, M, Savinov, V, Ugolini, D, Zhou, X, Coan, T, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Dambasuren, E, Kopp, S, Moneti, G, and Mountain, R

Abstract

Using a 4.19 fb-1 data sample collected with the CLEO II detector at the Cornell Electron Storage Ring, we have searched for dipion transitions between pairs of Y resonances at center of mass energies Ec.m. = 10.58 GeV and Ec.m. = 10.52GeV. We obtain the 90% confidence level upper limits B(Υ(4S) →Υ (2S) π+π-)

Published
2016

23. Measurement of the masses and widths of the Sigma(++)(c) and Sigma(0)(c) charmed baryons

Author

Artuso, M, Boulahouache, C, Bukin, K, Dambasuren, E, Mountain, R, Skwarnicki, T, Stone, S, Wang, J, Mahmood, A, Csorna, SE, Danko, I, Xu, Z, Bonvicini, G, Cinabro, D, Dubrovin, M, McGee, S, Bornheim, A, Lipeles, E, Pappas, S, Shapiro, A, Sun, WM, Weinstein, A, Masek, G, Paar, H, and Mahapatra, R

Abstract

Using data recorded by the CLEO II and CLEO II.V detector configurations at CESR, we report new measurements of the masses of the ∑c++ and ∑c0 charmed baryons, and the first measurements of their intrinsic widths. We find M(∑c++)-M(Λc+) =167.4±0.1±0.2 MeV, Γ(∑c++)=2.3±0.2±0.3 MeV, and M(∑c0) -M(Λc+)=167.2±0.1±0.2 MeV, Γ(∑c0)=2.5±0.2±0.3 MeV, where the uncertainties are statistical and systematic, respectively.

Published
2016
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24. Search for neutrinoless tau decays involving the K-S(0) meson

Author

Chen, S, Hinson, J, Lee, J, Miller, D, Pavlunin, V, Shibata, E, Shipsey, I, Cronin-Hennessy, D, Lyon, A, Park, C, Park, W, Thorndike, E, Coan, T, Gao, Y, Liu, F, Maravin, Y, Stroynowski, R, Artuso, M, Boulahouache, C, Bukin, K, Dambasuren, E, Khroustalev, K, Mountain, R, Nandakumar, R, and Skwarnicki, T

Published
2016

25. Bounds on the CP asymmetry in b --> sgamma decays

Author

Coan, T, Fadeyev, V, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, Dambasuren, E, Karamov, S, Majumder, G, Moneti, G, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Viehhauser, G, Wang, J, Wolf, A, Wu, J, Kopp, S, and Mahmood, A

Abstract

We have measured the CP asymmetry A(CP) identical with[gamma(b-->sgamma)-gammab-->sgamma)]/[gamma(b-->sgamma)+gamma(b-->sgamma)] to be A(CP) = (-0.079+/-0.108+/-0.022) (1.0+/-0.030), implying that, at 90% confidence level, A(CP) lies between -0.27 and +0.10. These limits rule out some extreme non-standard-model predictions, but are consistent with most, as well as with the standard model.

Published
2016

26. Study of chi(c1) and chi(c2) meson production in B meson decays

Author

Chen, S, Fast, J, Hinson, J, Lee, J, Miller, D, Shibata, E, Shipsey, I, Pavlunin, V, Cronin-Hennessy, D, Lyon, A, Thorndike, E, Savinov, V, Coan, T, Fadeyev, V, Gao, Y, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, and Dambasuren, E

Published
2016

27. Observation of Radiative Leptonic Decay of the Tau Lepton

Author

Bergfeld, T., Eisenstein, B. I., Ernst, J., Gladding, G. E., Gollin, G. D., Hans, R. M., Johnson, E., Karliner, I., Marsh, M. A., Palmer, M., Plager, C., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Janicek, R., Patel, P. M., Sadoff, A. J., Ammar, R., Baringer, P., Alice Bean, Besson, D., Davis, R., Kotov, S., Kravchenko, I., Kwak, N., Zhao, X., Anderson, S., Frolov, V. V., Kubota, Y., Lee, S. J., Mahapatra, R., O Neill, J. J., Poling, R., Riehle, T., Smith, A., Ahmed, S., Alam, M. S., Athar, S. B., Jian, L., Ling, L., Mahmood, A. H., Saleem, M., Timm, S., Wappler, F., Anastassov, A., Duboscq, J. E., Gan, K. K., Gwon, C., Hart, T., Honscheid, K., Kagan, H., Kass, R., Lorenc, J., Schwarthoff, H., Toerne, E., Zoeller, M. M., Richichi, S. J., Severini, H., Skubic, P., Undrus, A., Bishai, M., Chen, S., Fast, J., Hinson, J. W., Lee, J., Menon, N., Miller, D. H., Shibata, E. I., Shipsey, I. P. J., Kwon, Y., Lyon, A. L., Thorndike, E. H., Jessop, C. P., Lingel, K., Marsiske, H., Perl, M. L., Savinov, V., Ugolini, D., Zhou, X., Coan, T. E., Fadeyev, V., Korolkov, I., Maravin, Y., Narsky, I., Stroynowski, R., Ye, J., Wlodek, T., Artuso, M., Ayad, R., Dambasuren, E., Kopp, S., Majumder, G., Moneti, G. C., Mountain, R., Schuh, S., Skwarnicki, T., Stone, S., Titov, A., Viehhauser, G., Wang, J. C., Wolf, A., Wu, J., Csorna, S. E., Mclean, K. W., Marka, S., Xu, Z., Godang, R., Kinoshita, K., Lai, I. C., Schrenk, S., Bonvicini, G., Cinabro, D., Greene, R., Perera, L. P., Zhou, G. J., Chan, S., Eigen, G., Lipeles, E., Schmidtler, M., Shapiro, A., Sun, W. M., Urheim, J., Weinstein, A. J., Würthwein, F., Jaffe, D. E., Masek, G., Paar, H. P., Potter, E. M., Prell, S., Sharma, V., Asner, D. M., Eppich, A., Gronberg, J., Hill, T. S., Lange, D. J., Morrison, R. J., Nelson, T. K., Briere, R. A., Behrens, B. H., Ford, W. T., Gritsan, A., Krieg, H., Roy, J., Smith, J. G., Alexander, J. P., Baker, R., Bebek, C., Berger, B. E., Berkelman, K., Blanc, F., Boisvert, V., Cassel, D. G., Dickson, M., Drell, P. S., Ecklund, K. M., Ehrlich, R., Foland, A. D., Gaidarev, P., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hopman, P. I., Jones, C. D., Kreinick, D. L., Lee, T., Liu, Y., Meyer, T. O., Mistry, N. B., Ng, C. R., Nordberg, E., Patterson, J. R., Peterson, D., Riley, D., Thayer, J. G., Thies, P. G., Valant-Spaight, B., Warburton, A., Avery, P., Lohner, M., Prescott, C., Rubiera, A. I., Yelton, J., Zheng, J., Brandenburg, G., Ershov, A., Gao, Y. S., Kim, D. Y. -J, Wilson, R., Browder, T. E., Li, Y., Rodriguez, J. L., and Yamamoto, H.

Subjects
High Energy Physics - Experiment (hep-ex), 010308 nuclear & particles physics, 0103 physical sciences, FOS: Physical sciences, General Physics and Astronomy, High Energy Physics::Experiment, Astrophysics::Cosmology and Extragalactic Astrophysics, 010306 general physics, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, 3. Good health
Abstract

Using 4.68 fb^{-1} of e^+e^- annihilation data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR) we have studied tau radiative decays tau -> mu nu nu gamma and tau -> e nu nu gamma. For a 10 MeV minimum photon energy in the tau rest frame, the branching fraction of radiative tau decay to a muon or electron is measured to be (3.61+-0.16+-0.35)*10^{-3} or (1.75+-0.06+-0.17)*10^{-2}, respectively. The branching fractions are in agreement with the Standard Model theoretical predictions., 11 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS

Published
2000
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28. Search for X(3872) in γγ Fusion and Radiative Production at CLEO

Author

Dobbs, S, Metreveli, Z, Seth, K, Tomaradze, A, Zweber, P, Ernst, J, Mahmood, A, Severini, H, Asner, D, Dytman, S, Love, W, Mehrabyan, S, Mueller, J, Savinov, V, Li, Z, Lopez, A, Mendez, H, Ramirez, J, Huang, G, Miller, D, Pavlunin, V, Sanghi, B, Shibata, E, Shipsey, I, Adams, G, Chasse, M, Cravey, M, Cummings, J, Danko, I, Napolitano, J, Cronin-Hennessy, D, Park, C, Park, W, Thayer, J, Thorndike, E, Coan, T, Gao, Y, Liu, F, Artuso, M, Boulahouache, C, Blusk, S, Butt, J, Dambasuren, E, Dorjkhaidav, O, Menaa, N, Mountain, R, Muramatsu, H, Nandakumar, R, Redjimi, R, Sia, R, Skwarnicki, T, Stone, S, Wang, J, Zhang, K, Csorna, S, Bonvicini, G, Cinabro, D, Dubrovin, M, Bornheim, A, Pappas, S, Weinstein, A, Rosner, J, Briere, R, Chen, G, Ferguson, T, Tatishvili, G, Vogel, H, Watkins, M, Adam, N, Alexander, J, Berkelman, K, Cassel, D, Crede, V, Duboscq, J, Ecklund, K, Ehrlich, R, Fields, L, Galik, R, Gibbons, L, Gittelman, B, Gray, R, Gray, S, Hartill, D, Heltsley, B, Hertz, D, Hsu, L, Jones, C, Kandaswamy, J, Kreinick, D, Kuznetsov, V, Mahlke-Krüger, H, Meyer, T, Onyisi, P, Patterson, J, Peterson, D, Pivarski, J, Riley, D, Ryd, A, Sadoff, A, Schwarthoff, H, Shepherd, M, Stroiney, S, Sun, W, Urner, D, Wilksen, T, Weinberger, M, Athar, S, Avery, P, Breva-Newell, L, Patel, R, Potlia, V, Stoeck, H, Yelton, J, Rubin, P, Cawlfield, C, Eisenstein, B, Gollin, G, Karliner, I, Kim, D, Lowrey, N, Naik, P, Sedlack, C, Selen, M, Thaler, J, Williams, J, Wiss, J, Edwards, K, Besson, D, Pedlar, T, Gao, K, Gong, D, Kubota, Y, Lang, B, Li, S, Poling, R, Scott, A, Smith, A, and Stepaniak, C

Published
2005

29. Measurement of absolute hadronic branching fractions of D mesons and e(+)e(-)-> D(D)over-bar cross sections at E-c.m.=3773 MeV

Author

He, Q., Muramatsu, H., Park, C. S., Park, W., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Li, J., Menaa, N., Mountain, R., Nandakumar, R., Randrianarivony, K., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Briere, R. A., Chen, G. P., Chen, J., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Rosner, J. L., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Crede, V., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Phillips, E. A., Pivarski, J., Riley, D., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shi, X., Shepherd, M. R., Stroiney, S., Sun, W. M., Urner, D., Weaver, K. M., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Hietala, J., Kubota, Y., Klein, T., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Mahmood, A. H., Severini, H., Asner, D. M., Dytman, S. A., Love, W., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., and Napolitano, J.

Subjects
cleo-ii detector
Abstract

Using 55.8 pb(-1) of e(+)e(-) collisions recorded at the psi(3770) resonance with the CLEO-c detector at CESR, we determine absolute hadronic branching fractions of charged and neutral D mesons using a double tag technique. Among measurements for three D-0 and six D+ modes, we obtain reference branching fractions B(D-0-> K(-)pi(+))=(3.91 +/- 0.08 +/- 0.09)% and B(D+-> K(-)pi(+)pi(+))=(9.5 +/- 0.2 +/- 0.3)%, where the uncertainties are statistical and systematic, respectively. Final state radiation is included in these branching fractions by allowing for additional, unobserved, photons in the final state. Using a determination of the integrated luminosity, we also extract the cross sections sigma(e(+)e(-)-> D-0(D) over bar (0))=(3.60 +/- 0.07(-0.05)(+0.07)) nb and sigma(e(+)e(-) -> D+D-)=(2.79 +/- 0.07(-0.04)(+0.10)) nb.

Published
2005

30. Improved measurement of the form factors in the decay Lambda(+)(c) -> Lambda e(+)nu(e)

Author

Hinson, J. W., Huang, G. S., Lee, J., Miller, D. H., Pavlunin, V., Rangarajan, R., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Dambasuren, E., Dorjkhaidav, O., Mountain, R., Muramatsu, H., Nandakumar, R., Skwarnicki, T., Stone, S., Wang, J. C., Csorna, S. E., Danko, I., Bonvicini, G., Cinabro, D., Dubrovin, M., McGee, S., Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Sun, W. M., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Magerkurth, A., Mahlke-Kruger, H., Meyer, T. O., Mistry, N. B., Patterson, J. R., Peterson, D., Pivarski, J., Richichi, S. J., Riley, D., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Thayer, J. G., Urner, D., Wilksen, T., Warburton, A., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Potlia, V., Stoeck, H., Yelton, J., Benslama, K., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Plager, C., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Besson, D., Anderson, S., Frolov, V. V., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ahmed, S., Alam, M. S., Ernst, J., Jian, L., Saleem, M., Wappler, F., Arms, K., Eckhart, E., Gan, K. K., Gwon, C., Honscheid, K., Kagan, H., Kass, R., Pedlar, T. K., von Toerne, E., Severini, H., Skubic, P., Dytman, S. A., Mueller, J. A., Nam, S., and Savinov, V.

Subjects
effective field-theory, quark effective theory, radiative-corrections, heavy quarks, detector, mesons, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment
Abstract

Using the CLEO detector at the Cornell Electron Storage Ring, we have studied the distribution of kinematic variables in the decay Lambda(c)(+)->Lambda e(+)nu(e). By performing a four-dimensional maximum likelihood fit, we determine the form factor ratio, R=f(2)/f(1)=-0.31 +/- 0.05(stat)+/- 0.04(syst), the pole mass, M-pole=[2.21 +/- 0.08(stat)+/- 0.14(syst)] GeV/c(2), and the decay asymmetry parameter of the Lambda(c)(+), alpha(Lambda c)=-0.86 +/- 0.03(stat)+/- 0.02(syst), for < q(2)>=0.67 (GeV/c(2))(2). We compare the angular distributions of the Lambda(c)(+) and (Lambda) over bar (-)(c) and find no evidence for CP violation: A(Lambda c)=(alpha(Lambda c)+alpha((Lambda) over barc))/(alpha(Lambda c)-alpha((Lambda) over barc))=0.00 +/- 0.03(stat)+/- 0.01(syst)+/- 0.02, where the third error is from the uncertainty in the world average of the CP-violating parameter, A(Lambda), for Lambda -> p pi(-).

Published
2005

31. Search for eta(1475)->(KSK +/-)-K-0 pi(-/+) in two-photon fusion at the CLEO detector at Cornell

Author

Ahohe, R., Asner, D. M., Dytman, S. A., Love, W., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., Muramatsu, H., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Li, J., Menaa, N., Mountain, R., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Pappas, S. P., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Rosner, J. L., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Crede, V., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Stroiney, S., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Kubota, Y., Klein, T., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Mahmood, A. H., Arms, K., Gan, K. K., and Severini, H.

Subjects
High Energy Physics::Experiment, resonances, mesons, collisions, Nuclear Experiment
Abstract

We analyze 13.8 fb(-1) of the integrated e(+)e(-) luminosity collected at 10.6 GeV center-of-mass energy with the CLEO II and CLEO II.V detectors to study exclusive two-photon production of hadrons with masses below 1.7 GeV/c(2) decaying into the K(S)(0)K(+/-)pi(-/+) final state. We observe two statistically significant enhancements in the eta(1475) mass region. These enhancements have large transverse momentum which rules them out as being due to pseudoscalar resonances but is consistent with the production of axial-vector mesons. We use tagged two-photon events to study the properties of the observed enhancements and associate them with the production of f(1)(1285) and f(1)(1420). Our nonobservation of eta(1475) is inconsistent by more than 2 standard deviations with the first observation of this resonance in two-photon collisions by the L3 experiment. We present our estimates for 90% confidence level upper limits on the products of two-photon partial widths of light pseudoscalar hadrons and their branching fractions into K-S(0)(pi(+)pi(-))K(+/-)pi(-/+).

Published
2005

32. Search for e(+)e(-)->Lambda(0)(b)(Lambda)over-bar(b)(0) near threshold

Author

Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Kubota, Y., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Mahmood, A. H., Arms, K., Gan, K. K., Severini, H., Asner, D. M., Dytman, S. A., Love, W., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Li, J., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Pappas, S. P., Weinstein, A. J., Rosner, J. L., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Crede, V., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Stroiney, S., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Wiss, J., and Edwards, K. W.

Subjects
detector, High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

Using the CLEO-III detector at CESR we study e(+)e(-) collisions in the center-of-mass energy close to, or above, Lambda(b)(0)(&ULambda;) over bar (0)(b) production threshold. We search for evidence of Lambda(b)(0)(&ULambda;) over bar (0)(b) resonance production and set upper limits based on inclusive hadron production as a barometer of Lambda(b)(0)(&ULambda;) over bar (0)(b) production.

Published
2005

33. Study of tau decays to four-hadron final states with kaons

Author

Arms, K., Gan, K. K., Severini, H., Asner, D. M., Dytman, S. A., Love, W., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., Muramatsu, H., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Li, J., Menaa, N., Mountain, R., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Pappas, S. P., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Rosner, J. L., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Crede, V., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Stroiney, S., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Kubota, Y., Klein, T., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., and Mahmood, A. H.

Subjects
charged kaons, detector, library, meson, High Energy Physics::Experiment, Astrophysics::Cosmology and Extragalactic Astrophysics
Abstract

The rare tau lepton decays to four explicitly identified hadrons have been studied with the CLEO detector at the Cornell Electron Storage Ring using (7.56 +/- 0.15) fb(-1) of data collected near root s=10.58 GeV. The first statistically significant measurements of B(tau(-)-> K(-)pi(+)pi(-)pi(0)nu(tau),excludingK(0))=(7.4 +/- 0.8 +/- 1.1)x10(-4) and B(tau(-)-> K(-)K(+)pi(-)pi(0)nu(tau))=(5.5 +/- 1.4 +/- 1.2)x10(-5) are presented, including the first observation of the decay tau(-)-> K(-)omega nu(tau) with branching fraction, (4.1 +/- 0.6 +/- 0.7)x10(-4). We publish the first upper limit for B(tau(-)-> K(-)K(+)K(-)pi(0)nu(tau))< 4.8(6.1)x10(-6) at 90% (95%) confidence level. We measure for the first time the invariant mass distributions, which together with the branching fraction measurements are important ingredients that can be used to extract the standard model parameters, the strange quark mass, and the Cabibbo-Kobayashi-Maskawa element V-us.

Published
2005

34. Measurement of the branching fractions for J/psi -> l(+)l(-)

Author

Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., He, Q., Muramatsu, H., Park, C. S., Park, W., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Li, J., Menaa, N., Mountain, R., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Briere, R. A., Chen, G. P., Chen, J., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Rosner, J. L., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Crede, V., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Phillips, E. A., Pivarski, J., Riley, D., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Stroiney, S., Sun, W. M., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Kubota, Y., Klein, T., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Mahmood, A. H., Severini, H., Asner, D. M., Dytman, S. A., Love, W., Mehrabyan, S., Mueller, J. A., and Savinov, V.

Subjects
detector, quarkonium, High Energy Physics::Experiment
Abstract

We present measurements of the branching fractions for J/psi -> e(+)e(-) and mu(+)mu(-) using 3M psi(2S) decays collected with the CLEO detector operating at the CESR e(+)e(-) collider. We obtain B(J/psi -> e(+)e(-))=(5.945 +/- 0.067 +/- 0.042)% and B(J/psi ->mu(+)mu(-))=(5.960 +/- 0.065 +/- 0.050)%, leading to an average of B(J/psi -> l(+)l(-))=(5.953 +/- 0.056 +/- 0.042)% and a ratio of B(J/psi -> e(+)e(-))/B(J/psi ->mu(+)mu(-))=(99.7 +/- 1.2 +/- 0.6)%, all consistent with, but more precise than, previous measurements.

Published
2005

35. New measurement of the masses and widths of the Sigma(*++)(c) and Sigma(*0)(c) charmed baryons

Author

Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Pedlar, T. K., Gao, K. Y., Gong, D. T., Kubota, Y., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Mahmood, A. H., Arms, K., Gan, K. K., Severini, H., Asner, D. M., Dytman, S. A., Love, W., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Pappas, S. P., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Rosner, J. L., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Crede, V., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Stroiney, S., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., and Weinberger, M.

Subjects
Physics::Accelerator Physics, High Energy Physics::Experiment, Astrophysics::Cosmology and Extragalactic Astrophysics, heavy baryons, Nuclear Experiment
Abstract

Using data recorded by the CLEO III detector at the Cornell electron storage ring (CESR), we have made measurements of some properties of the Sigma(c)(*)(++) and Sigma(c)(*)(0) charmed baryons. In particular: Gamma(Sigma(c)(*)(++)) = 14.4-1.5+1.6 +/- 1.4 MeV, M(Sigma(c)(*)(++)) - M(Lambda(c)(+)) = 231.5 +/- 0.4 +/- 0.3 MeV, Gamma(Sigma(c)(*0)) = 16.6-1.7+1.9 +/- 1.4 MeV, M(Sigma(c)(*0)) - M(Lambda(c)(+)) = 231.4 +/- 0.5 +/- 0.3 MeV.

Published
2005

36. Limits on neutral D mixing in semileptonic decays

Author

Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Kubota, Y., Klein, T., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Mahmood, A. H., Arms, K., Gan, K. K., Severini, H., Asner, D. M., Dytman, S. A., Love, W., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., He, Q., Muramatsu, H., Park, C. S., Park, W., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Li, J., Menaa, N., Mountain, R., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., McGee, S., Bornheim, A., Pappas, S. P., Weinstein, A. J., Nelson, H. N., Briere, R. A., Chen, G. P., Chen, J., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Rosner, J. L., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Crede, V., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Stroiney, S., Sun, W. M., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., and Rubin, P.

Subjects
detector, High Energy Physics::Experiment
Abstract

Using the CLEO II.V detector observing e(+)e(-) collisions at around 10.6 GeV we search for neutral D mixing in semileptonic D-0 decays tagged in charged D* decays. Combining the results from the Ke nu and K*e nu channels we find that the rate for D mixing is less than 0.0078 at 90% C.L.

Published
2005

37. Search for D-0(D)over-bar(0) mixing in the Dalitz plot analysis of D-0 -> K-S(0)pi(+)pi(-)

Author

Asner, D. M., Dytman, S. A., Love, W., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., He, Q., Muramatsu, H., Park, C. S., Park, W., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Horwitz, N., Li, J., Menaa, N., Mountain, R., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Pappas, S. P., Weinstein, A. J., Nelson, H. N., Briere, R. A., Chen, G. P., Chen, J., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Rosner, J. L., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Crede, V., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Stroiney, S., Sun, W. M., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Kubota, Y., Klein, T., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Mahmood, A. H., Arms, K., Gan, K. K., and Severini, H.

Subjects
d-meson system, difference, lifetimes, symmetry, detector, matrix, decays, charm
Abstract

The resonant substructure in D-0-> K(S)(0)pi(+)pi(-) decays is described by a combination of ten quasi two-body intermediate states which include both CP-even and CP-odd eigenstates and one doubly Cabibbo suppressed channel. We present a formalism that connects the variation in D-0 decay time over the Dalitz plot with the mixing parameters, x and y, that describe off-shell and on-shell D-0-(D) over bar (0) mixing. We analyze the CLEO II.V data sample and find the parameters x and y are consistent with zero. We limit (-4.5 < x < 9.3)% and (-6.4 < y < 3.6)% at the 95% confidence level.

Published
2005

38. Photon transitions in Upsilon(2S) and Upsilon(3S) decays

Author

Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Li, J., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Pappas, S. P., Weinstein, A. J., Rosner, J. L., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Crede, V., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Stroiney, S., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Kubota, Y., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Mahmood, A. H., Arms, K., Gan, K. K., Severini, H., Asner, D. M., Dytman, S. A., Love, W., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., and Stroynowski, R.

Subjects
radiative decays, relativistic corrections, dipole transitions, bound-states, spectroscopy, quarkonium, charmonium, mesons, 2s, High Energy Physics::Experiment
Abstract

We have studied the inclusive photon spectra in Upsilon(2S) and Upsilon(3S) decays using a large statistics data sample obtained with the CLEO III detector. We present the most precise measurements of electric dipole (E1) photon transition rates and photon energies for Upsilon(2S) --gammachi(bJ)(1P) and Upsilon(3S) --gammachi(bJ)(2P) (J = 0, 1, 2). We measure the rate for a rare E1 transition Upsilon(3S) --gammachi(b0)(1P) for the first time. We also set upper limits on the rates for the hindered magnetic dipole (M1) transitions to the eta(b)(1S) and eta(b)(2S) states.

Published
2004

39. Search for the lepton-flavor-violating leptonic B(0)--mu(+/-)tau(-/+) and B(0)--e(+/-)tau(-/+)

Author

Bornheim, A., Lipeles, E., Pappas, S. P., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Rosner, J. L., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Gao, K. Y., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Arms, K., Gan, K. K., Severini, H., Skubic, P., Asner, D. M., Dytman, S. A., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Mahmood, A. H., Csorna, S. E., Bonvicini, G., Cinabro, D., and Dubrovin, M.

Subjects
decays, detector, High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

We have searched a sample of 9.6x10(6) B (B) over bar events for the lepton-flavor-violating leptonic B decays, B-0-->mu(+/-)tau(-/+) and B-0-->e(+/-)tau(-/+). The tau lepton was detected through the decay modes tau-->lnu(ν) over bar, where l=e,mu. There is no indication of a signal, and we obtain the 90% confidence level upper limits B(B-0-->mu(+/-)tau(-/+))e(+/-)tau(-/+))

Published
2004

40. Observation of ηc′ Production in γγ Fusion at CLEO

Author

Asner, D, Dytman, S, Mehrabyan, S, Mueller, J, Nam, S, Savinov, V, Huang, G, Miller, D, Pavlunin, V, Sanghi, B, Shibata, E, Shipsey, I, Adams, G, Chasse, M, Cummings, J, Danko, I, Napolitano, J, Cronin-Hennessy, D, Park, C, Park, W, Thayer, J, Thorndike, E, Coan, T, Gao, Y, Liu, F, Stroynowski, R, Artuso, M, Boulahouache, C, Blusk, S, Butt, J, Dambasuren, E, Dorjkhaidav, O, Haynes, J, Menaa, N, Mountain, R, Muramatsu, H, Nandakumar, R, Redjimi, R, Sia, R, Skwarnicki, T, Stone, S, Wang, J, Zhang, K, Mahmood, A, Csorna, S, Bonvicini, G, Cinabro, D, Dubrovin, M, Bornheim, A, Lipeles, E, Pappas, S, Shapiro, A, Weinstein, A, Mahapatra, R, Nelson, H, Briere, R, Chen, G, Ferguson, T, Tatishvili, G, Vogel, H, Watkins, M, Adam, N, Alexander, J, Berkelman, K, Boisvert, V, Cassel, D, Duboscq, J, Ecklund, K, Ehrlich, R, Galik, R, Gibbons, L, Gittelman, B, Gray, S, Hartill, D, Heltsley, B, Hsu, L, Jones, C, Kandaswamy, J, Kreinick, D, Kuznetsov, V, Magerkurth, A, Mahlke-Krüger, H, Meyer, T, Patterson, J, Pedlar, T, Peterson, D, Pivarski, J, Riley, D, Sadoff, A, Schwarthoff, H, Shepherd, M, Sun, W, Urner, D, Wilksen, T, Weinberger, M, Athar, S, Avery, P, Breva-Newell, L, Potlia, V, Stoeck, H, Yelton, J, Eisenstein, B, Gollin, G, Karliner, I, Lowrey, N, Naik, P, Sedlack, C, Selen, M, Thaler, J, Williams, J, Edwards, K, Besson, D, Gao, K, Gong, D, Kubota, Y, Li, S, Poling, R, Scott, A, Smith, A, Stepaniak, C, Urheim, J, Metreveli, Z, Seth, K, Tomaradze, A, Zweber, P, Arms, K, Eckhart, E, Gan, K, Gwon, C, Severini, H, and Skubic, P

Published
2004

41. First observation and Dalitz analysis of the D-0 -> K-S(0)eta pi(0) decay

Author

Rubin, P., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Besson, D., Gao, K. Y., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Arms, K., Eckhart, E., Gan, K. K., Severini, H., Skubic, P., Asner, D. M., Dytman, S. A., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Mahmood, A. H., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Lipeles, E., Pappas, S. P., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Pedlar, T. K., Peterson, D., Pivarski, J., Riley, D., Rosner, J. L., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., and Yelton, J.

Subjects
coupled-channel analysis, detector, eta
Abstract

Using 9.0 fb(-1) of integrated luminosity in e(+)e(-) collisions near the Y(4S) mass collected with the CLEO II.V detector we report the first observation of the decay D-0-->K(S)(0)etapi(0). We measure the ratio of branching fractions, BR(D-0-->K(S)(0)etapi(0))/BR(D-0-->K(S)(0)pi(0)) = 0.46+/-0.07+/-0.06. We perform a Dalitz analysis of 155 selected D-0-->K(S)(0)etapi(0) candidates and find leading contributions from a(0)(980)K-S(0) and K*(892)eta intermediate states.

Published
2004

42. Observation of eta '(c) production in gamma gamma fusion at CLEO

Author

Asner, D. M., Dytman, S. A., Mehrabyan, S., Mueller, J. A., Nam, S., Savinov, V., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Haynes, J., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Mahmood, A. H., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Weinstein, A. J., Mahapatra, R., Nelson, H. N., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Magerkurth, A., Mahlke-Kruger, H., Meyer, T. O., Patterson, J. R., Pedlar, T. K., Peterson, D., Pivarski, J., Riley, D., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Potlia, V., Stoeck, H., Yelton, J., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Besson, D., Gao, K. Y., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Arms, K., Eckhart, E., Gan, K. K., Gwon, C., Severini, H., and Skubic, R.

Subjects
High Energy Physics::Experiment, Nuclear Experiment, detector, quarkonia, search, eta(c), lep
Abstract

We report on the observation of the eta(c)'(2(1)S(0)), the radial excitation of the eta(c)(1(1)S(0)) ground state of charmonium, in the two-photon fusion reaction gammagamma --> eta(c)' --> (KsK+/-)-K-0 pi(-/+) in 13.6 fb(-1) of CLEO II/ILV data and 13.1 fb(-1) of CLEO III data. We obtain M(eta(c)') = 3642.9 +/- 3.1 (stat) +/- 1.5(syst) MeV and M(eta(c)) = 2981.8 +/- 1.3(stat) +/- 1.5(syst) MeV. The corresponding values of hyperfine splittings between S-1(0) and S-3(1) states are DeltaM(hf)(1S) = 115.1 +/- 2.0 MeV and DeltaM(hf)(2S) = 43.1 +/- 3.4 MeV. Assuming that the eta(c) and eta(c)' have equal branching fractions to K(s)Kpi, we obtain Gamma(gammagamma)(eta(c)') = 1.3 +/- 0.6 keV.

Published
2004

43. Measurement of the B-meson inclusive semileptonic branching fraction and electron-energy moments

Author

Mahmood, A. H., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Magerkurth, A., Mahlke-Kruger, H., Meyer, T. O., Patterson, J. R., Pedlar, T. K., Peterson, D., Pivarski, J., Riley, D., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Potlia, V., Stoeck, H., Yelton, J., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Besson, D., Gao, K. Y., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Arms, K., Eckhart, E., Gan, K. K., Gwon, C., Severini, H., Skubic, P., Asner, D. M., Dytman, S. A., Mehrabyan, S., Mueller, J. A., Nam, S., Savinov, V., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Haynes, J., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., and Zhang, K.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment, radiative-corrections, lepton spectrum, decays, qcd, distributions, parameters, detector, model
Abstract

We report a new measurement of the B-meson semileptonic decay momentum spectrum that has been made with a sample of 9.4 fb(-1) of e(+)e(-) data collected with the CLEO II detector at the Y(4S) resonance. Electrons from primary semileptonic decays and secondary charm decays were separated by using charge and angular correlations in Y(4S) events with a high-momentum lepton and an additional electron. We determined the semileptonic branching fraction to be B(B-->Xe(+)nu(e))=(10.91+/-0.09+/-0.24)% from the normalization of the electron-energy spectrum. We also measured the moments of the electron-energy spectrum with minimum energies from 0.6 to 1.5 GeV.

Published
2004

44. Photon transitions in psi(2S) decays to chi(cJ)(1P) and eta(c)(1S)

Author

Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Gao, K. Y., Gong, D. T., Kubota, Y., Lang, B. W., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Mahmood, A. H., Severini, H., Asner, D. M., Dytman, S. A., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Rosner, J. L., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., and Weinberger, M.

Subjects
High Energy Physics::Experiment, radiative decays, spectroscopy, psi(3095), physics
Abstract

We have studied the inclusive photon spectrum in psi(2S) decays using the CLEO III detector. We present the most precise measurements of electric dipole (E1) photon transition rates for psi(2S)-->gammachi(cJ)(1P) (J=0,1,2). We also confirm the hindered magnetic dipole (M1) transition, psi(2S)-->gammaeta(c)(1S). However, the direct M1 transition psi(2S)-->gammaeta(c)(2S) observed by the Crystal Ball as a narrow peak at a photon energy of 91 MeV is not found in our data.

Published
2004

45. Search for CP violation in D-0 -> K-S(0)pi(+)pi(-)

Author

Asner, D. M., Nelson, H. N., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Magerkurth, A., Mahlke-Kruger, H., Meyer, T. O., Mistry, N. B., Patterson, J. R., Peterson, D., Pivarski, J., Richichi, S. J., Riley, D., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Thayer, J. G., Urner, D., Wilksen, T., Warburton, A., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Potlia, V., Stoeck, H., Yelton, J., Benslama, K., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Plager, C., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Besson, D., Zhao, X., Anderson, S., Frolov, V. V., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ahmed, S., Alam, M. S., Ernst, J., Jian, L., Saleem, M., Wappler, F., Arms, K., Eckhart, E., Gan, K. K., Gwon, C., Honscheid, K., Hufnagel, D., Kagan, H., Kass, R., Pedlar, T. K., von Toerne, E., Zoeller, M. M., Severini, H., Skubic, P., Dytman, S. A., Mueller, J. A., Nam, S., Savinov, V., Hinson, J. W., Lee, J., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Cronin-Hennessy, D., Lyon, A. L., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Maravin, Y., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Dambasuren, E., Dorjkhaidav, O., Horwitz, N., Moneti, G. C., Mountain, R., Muramatsu, H., Nandakumar, R., Skwarnicki, T., Stone, S., Wang, J. C., Mahmood, A. H., Csorna, S. E., Danko, I., Bonvicini, G., Cinabro, D., Dubrovin, M., McGee, S., Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Sun, W. M., and Weinstein, A. J.

Subjects
decays, detector, meson
Abstract

We report on a search for CP violation in the decay of D-0 and D-0 to K(S)(0)pi(+)pi(-). The data come from an integrated luminosity of 9.0 fb(-1) of e(+)e(-) collisions at rootsapproximate to10 GeV recorded with the CLEO II.V detector. The resonance substructure of this decay is well described by ten quasi-two-body decay channels plus a small nonresonant component. We observe no evidence for CP violation in the amplitudes that describe the decay D-0-->K(S)(0)pi(+)pi(-).

Published
2004

46. Charm meson spectra in e(+)e(-) annihilation at 10.5 GeV center of mass energy

Author

Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Haynes, J., Horwitz, N., Menaa, N., Moneti, G. C., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Mahmood, A. H., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Magerkurth, A., Mahlke-Kruger, H., Meyer, T. O., Patterson, J. R., Pedlar, T. K., Peterson, D., Pivarski, J., Riley, D., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Potlia, V., Stoeck, H., Yelton, J., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Besson, D., Gao, K. Y., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Arms, K., Eckhart, E., Gan, K. K., Gwon, C., Severini, H., Skubic, P., Asner, D. M., Dytman, S. A., Mehrabyan, S., Mueller, J. A., Nam, S., Savinov, V., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., and Stroynowski, R.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, b-quark fragmentation, lund monte-carlo, e+e annihilation, root-s, jet fragmentation, decays, physics, detector
Abstract

Using the CLEO detector at the Cornell Electron-positron Storage Ring, we have measured the scaled momentum spectra, dsigma/dx(p), and the inclusive production cross sections of the charm mesons D+, D-0, Dstar+, and D-star0 in e(+)e(-) annihilation at about 10.5 GeV center of mass energy, excluding the decay products of B mesons. The statistical accuracy and momentum resolution are superior to previous measurements at this energy.

Published
2004

47. Wess-Zumino current and the structure of the decay tau(-)-> K-pi K--(+)nu(tau)

Author

Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Haynes, J., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Mahmood, A. H., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Magerkurth, A., Mahlke-Kruger, H., Meyer, T. O., Patterson, J. R., Pedlar, T. K., Peterson, D., Pivarski, J., Riley, D., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Potlia, V., Stoeck, H., Yelton, J., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Besson, D., Gao, K. Y., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Arms, K., Eckhart, E., Gan, K. K., Gwon, C., Severini, H., Skubic, P., Asner, D. M., Dytman, S. A., Mehrabyan, S., Mueller, J. A., Nam, S., Savinov, V., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., and Thorndike, E. H.

Subjects
tau-meson decays, cleo-iii, detector, mass, library, upgrade, koralb, kaons, High Energy Physics::Experiment
Abstract

We present the first study of the vector (Wess-Zumino) current in tau(-)-->K(-)pi(-)K(+)nu(tau) decay using data collected with the CLEO III detector at the Cornell Electron Storage Ring. We determine the quantitative contributions to the decay width from the vector and axial vector currents. Within the framework of a model by Kuhn and Mirkes, we identify the quantitative contributions to the total decay rate from the intermediate states omegapi, rho(('))pi, and (KK)-K-*.

Published
2004

48. New measurements of Upsilon(1S) decays to charmonium final states

Author

Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gittelman, B., Gray, R., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hertz, D., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Mahlke-Kruger, H., Meyer, T. O., Onyisi, P. U. E., Patterson, J. R., Peterson, D., Pivarski, J., Riley, D., Rosner, J. L., Ryd, A., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Sun, W. M., Thayer, J. G., Urner, D., Wilksen, T., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Patel, R., Potlia, V., Stoeck, H., Yelton, J., Rubin, P., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Gao, K. Y., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Arms, K., Gan, K. K., Severini, H., Skubic, P., Asner, D. M., Dytman, S. A., Mehrabyan, S., Mueller, J. A., Savinov, V., Li, Z., Lopez, A., Mendez, H., Ramirez, J., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Adams, G. S., Chasse, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., Dambasuren, E., Dorjkhaidav, O., Menaa, N., Mountain, R., Muramatsu, H., Nandakumar, R., Redjimi, R., Sia, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, K., Mahmood, A. H., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Lipeles, E., Pappas, S. P., and Weinstein, A. J.

Subjects
b-quark production, = 1.8 tev, j/psi production, (p)over-bar-p collisions, p(p)over-bar collisions, e&e annihilation, root-s=1.8 tev, gamma-decay, cleo, e(+)e(-), High Energy Physics::Experiment
Abstract

Using data collected by the CLEO III detector at CESR, we report on measurements of Y(1S) decays to charmonium final states. The data sample used for this analysis consists of 21.2x10(6) Y(1S) decays, representing about 35 times more data than previous CLEO Y(1S) data samples. We present substantially improved measurements of the branching fraction B(Y(1S)-->J/psi+X) using J/psi-->mu(+)mu(-) and J/psi-->e(+)e(-) decays. The branching fractions for these two modes are averaged, thereby obtaining: B(Y(1S)-->J/psi+X)=(6.4+/-0.4(stat)+/-0.6(syst))x10(-4). A greatly improved measurement of the J/psi momentum distribution is presented and indicates a spectrum which is much softer than predicted by the color-octet model and somewhat softer than the color-singlet model. First measurements of the J/psi polarization and production angle are also presented. In addition, we report on the first observation of Y(1S)-->psi(2S)+X and evidence for Y(1S)-->chi(cJ)+X. Their branching fractions are measured relative to B(Y(1S)-->J/psi+X) and are found to be {[B(Y(1S)-->psi(2S)+X)]/[B(Y(1S)-->J/psi+ X)]}=0.41+/-0.11(stat)+/-0.08(syst), {[B(Y(1S)-->chi(c1)+X)]/[B(Y(1S)-->J/psi+X)]}=0.35+/- 0.08(stat)+/-0.06(syst), {[B(Y(1S)-->chi(c2)+X)]/[B(Y(1S)-->J/psi+X)]}=0.52+/-0.12(stat)+/-0.09(syst), and {[B(Y(1S)-->chi(c0)+X)]/[B(Y(1S)-->J/psi+X)]}

Published
2004

49. Measurement of the decay rate of Xi(0)(c)-> pK(-)K(-)pi(+) relative to Xi(0)(c)->Xi(-)pi(+)

Author

Danko, I., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Dambasuren, E., Dorjkhaidav, O., Mountain, R., Muramatsu, H., Nandakumar, R., Skwarnicki, T., Stone, S., Wang, J. C., Mahmood, A. H., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Sun, W. M., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Kuznetsov, V. E., Magerkurth, A., Mahlke-Kruger, H., Meyer, T. O., Mistry, N. B., Patterson, J. R., Pedlar, T. K., Peterson, D., Pivarski, J., Richichi, S. J., Riley, D., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Thayer, J. G., Urner, D., Wilksen, T., Warburton, A., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Potlia, V., Stoeck, H., Yelton, J., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Plager, C., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Besson, D., Gao, K. Y., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Arms, K., Eckhart, E., Gan, K. K., Gwon, C., Severini, H., Skubic, P., Dytman, S. A., Mueller, J. A., Nam, S., Savinov, V., Huang, G. S., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., and Shipsey, I. P. J.

Subjects
detector
Abstract

Using the CLEO III detector at CESR, we have measured the branching ratio of the decay Xi(c)(0)-->pK(-)K(-)pi(+) relative to Xi(c)(0)-->Xi(-)pi(+). We find B(Xi(c)(0)-->pK(-)K(-)pi(+))B(Xi(c)(0)-->Xi(-)pi(+))=0.35+/-0.06(stat)+/-0.03(syst). In the resonant substructure of this mode, we find evidence for Xi(c)(0) decays to pK(*)(892)K-0(-), and measure B(Xi(c)(0)-->pK(*)(892)K-0(-))xB(K-*(892)(0)-->K(-)pi(+))/B(Xi(c)(0)-->Xi(-)pi(+))=0.14+/-0.03(stat)+/-0.01(syst) and B(Xi(c)(0)-->pK(-)K(-)pi(+))/B(Xi(c)(0)-->Xi(-)pi(+))=0.21+/-0.04(stat)+/-0.02(syst) for the non-K-*(892)(0)Xi(c)(0)-->pK(-)K(-)pi(+) decays.

Published
2004

50. Cabibbo-suppressed decays of D+->pi(+)pi(0),K+(K)over-bar(0),K+pi(0)

Author

Arms, K., Eckhart, E., Gan, K. K., Gwon, C., Honscheid, K., Kass, R., Severini, H., Skubic, P., Dytman, S. A., Mueller, J. A., Nam, S., Savinov, V., Huang, G. S., Lee, J., Miller, D. H., Pavlunin, V., Sanghi, B., Shibata, E. I., Shipsey, I. P. J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Dambasuren, E., Dorjkhaidav, O., Mountain, R., Muramatsu, H., Nandakumar, R., Skwarnicki, T., Stone, S., Wang, J. C., Mahmood, A. H., Csorna, S. E., Danko, I., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Sun, W. M., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hsu, L., Jones, C. D., Kandaswamy, J., Kreinick, D. L., Magerkurth, A., Mahlke-Kruger, H., Meyer, T. O., Mistry, N. B., Patterson, J. R., Pedlar, T. K., Peterson, D., Pivarski, J., Richichi, S. J., Riley, D., Sadoff, A. J., Schwarthoff, H., Shepherd, M. R., Thayer, J. G., Urner, D., Wilksen, T., Warburton, A., Weinberger, M., Athar, S. B., Avery, P., Breva-Newell, L., Potlia, V., Stoeck, H., Yelton, J., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Plager, C., Sedlack, C., Selen, M., Thaler, J. J., Williams, J., Edwards, K. W., Besson, D., Frolov, V. V., Gao, K. Y., Gong, D. T., Kubota, Y., Li, S. Z., Poling, R., Scott, A. W., Smith, A., Stepaniak, C. J., Urheim, J., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., and Ernst, J.

Subjects
detector
Abstract

Using a 13.7 fb(-1) data sample collected with the CLEO II and II.V detectors, we report new branching fraction measurements for two Cabibbo-suppressed decay modes of the D+ meson: B(D+-->pi(+)pi(0))=(1.31+/-0.17+/-0.09+/-0.09)x10(-3) and B(D+-->K+(K) over bar (0))=(5.24+/-0.43+/-0.20+/-0.34)x10(-3) which are significant improvements over past measurements. The errors reflect statistical and systematical uncertainties as well as the uncertainty in the absolute D+ branching fraction scale. We also set the first 90% confidence level upper limit on the branching fraction of the doubly Cabibbo-suppressed decay mode B(D+-->K(+)pi(0))

Published
2004

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