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22 results on '"D. Fujino"'

1. An 800-MeV proton radiography facility for dynamic experiments

Author

Thomas E. McDonald, D. Fujino, Christopher Morris, Steven A. Jaramillo, F.J. Naivar, J.N Knudsson, Frank E. Merrill, K.R. Alrick, M.L. Crow, Peter D. Barnes, J. D. Zumbro, V. H. Holmes, N.T. Gray, J. S. Sarracino, H.E. Tucker, Peter Pazuchanics, Stephen Balzar, J.C Eddleman, George J. Yates, E. P. Hartouni, C. Pillai, Paul Flores, R.R Lopez, James F. Amann, K. B. Morley, H. L. Stacy, Robert A. Gallegos, Hans-Joachim Ziock, S.B. Cushing, T.T. Fife, B.E. Takala, Nicholas S. P. King, Gary E. Hogan, E. Ables, Kenneth Adams, F.E. Shelley, E.L Parker, J.B. McClelland, H.-S. Park, R.K. London, Richard H. Thompson, and C. M. Riedel

Subjects
Physics, Nuclear and High Energy Physics, Proton, business.industry, Dynamic range, Radiography, Image plane, Sample (graphics), Quality (physics), Optics, Physics::Accelerator Physics, Magnetic lens, business, Instrumentation, Beam (structure)
Abstract

The capability has successfully been developed at the Los Alamos Nuclear Science Center (LANSCE) to utilize a spatially and temporally prepared 800 MeV proton beam to produce proton radiographs. A series of proton bursts are transmitted through a dynamic object and transported, via a unique magnetic lens system, to an image plane. The magnetic lens system permits correcting for the e⁄ects of multiple coulomb scattering which would otherwise completely blur the spatially transmitted information at the image plane. The proton radiographs are recorded either on a time integrating film plate or with a recently developed multi-frame electronic imaging camera system. The latter technique permits obtaining a time dependent series of proton radiographs with time intervals (modulo 358 ns) up to many microseconds and variable time intervals between images. One electronically shuttered, intensified, CCD camera is required per image. These cameras can detect single protons interacting with a scintillating fiber optic array in the image plane but also have a dynamic range which permits recording radiographs with better than 5% statistics for observation of detailed density variations in the object. A number of tests have been carried out to characterize the quality of the proton radiography system for absolute mass determination, resolution, and dynamic range. Initial dynamic experiments characterized the temporal and spatial behavior of shock propagation in a high explosive sample with up to six images per experiment. Based on experience with the prototype system, a number of upgrades are being implemented including the anticipated capability for enhanced mass discrimination through di⁄erential multiple coulomb scattering radiographs and more images with improved imaging techniques. ( 1999 Published by Elsevier Science B.V. All rights reserved.

Published
1999
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2. Measurement of the branching fraction for Ds− → Φπ−

Author

G. E. Gladding, S. Patton, M. Gao, H. Kagan, D. L. Kreinick, H. P. Paar, R. Fulton, T. E. Browder, R. J. Morrison, Mats A Selen, D. Payne, H. A. Cho, A. J. Sadoff, D. L. Hartill, A. Soffer, K. Honscheid, S. Anderson, John Yelton, M. Lambrecht, S. Roberts, D. S. Crowcroft, C. M. Korte, D. Gibaut, J. E. Duboscq, F. R. Wappler, R. Poling, C. R. Ng, E. Nordberg, D. M. Coffman, B. K. Heltsley, I. Korolkov, N. Copty, G. D. Gollin, G. S. Ludwig, Michael S. Witherell, T. E. Coan, D. B. MacFarlane, C. Ward, Pu Wang, M. Dickson, H. Marsiske, A. J. Weinstein, Tomasz Skwarnicki, H. N. Nelson, G. Masek, S. J. Richichi, Juliet Ritchie Patterson, Richard Wilson, J. J. Thaler, J. Mevissen, J. Gronberg, C. Qiao, L. P.J. Shipsey, E. I. Shibata, A. Undrus, S.C. Timm, V. Fadeyev, J. Kandaswamy, N. Horwitz, M. Chadha, Kenneth Bloom, Shengfeng Yang, S. Nakanishi, R. A. Briere, E. H. Thorndike, M. Sung, D. Roberts, Marina Artuso, N. Katayama, Y. Kwon, D. Peterson, G. Eigen, R. Davis, Jungil Lee, Alain Bellerive, Sheldon Stone, Paul Avery, D. Z. Besson, K. W. McLean, M. Lohner, D. Coppage, J. P. Alexander, R. Ammar, M.A. Palmer, D. He, P. M. Patel, M. Ogg, C.Y. Prescott, S. Playfer, A. Wolf, S. E. Csorna, D. Riley, R. Ehrlich, Anders Ryd, M. Athanas, A. H. Mahmood, W. R. Ross, D. M. Asner, C. D. Jones, C. R. Sun, W. T. Ford, Sz Márka, G. Wei, Harold S. Park, R. D. Kass, J. Bartelt, T. Lee, M. Schmidtler, R. Balest, P. S. Drell, A. Freyberger, T. Liu, H. Severini, S. Chan, K. Kinoshita, I. Volobouev, Alice Bean, R. Elia, M. L. Perl, Yuichi Kubota, G. W. Brandenburg, J. K. Nelson, C. Bebek, N. Kwak, K. Lingel, M. Saulnier, R. Kutschke, B. E. Berger, M. Bishai, E. Gerndt, J. Ernst, C. O'Grady, P. Skubic, S. L. Jones, K. W. Edwards, D. H. Miller, D. W. Bliss, D. Cinabro, H. Yamamoto, S. Sanghera, P. Gaidarev, D. J. Dumas, X. Fu, B. Nemati, B. Gittelman, R. Mountain, Karl Berkelman, S. Menary, A. Efimov, Dave Britton, J. L. Rodriguez, J. Dominick, I. J. Kim, T. Bergfeld, Frank Würthwein, L. Gibbons, R. Wang, S. Kotov, J. Masui, K. Cho, V. Shelkov, R. Janicek, D. G. Cassel, B. Spaan, N. B. Mistry, N. Hancock, Sacha E Kopp, M. S. Alam, R. Wanke, J. S. Miller, Vivek Jain, M. Lattery, B. I. Eisenstein, J. Fast, F. Li, Christopher G. White, J. D. Richman, J. Urheim, B. C. Barish, K. K. Gan, P. C. Kim, M. Goldberg, G. C. Moneti, S.F. Schaffner, V. Savinov, M. Yurko, T. K. Nelson, T. Miao, Philip Baringer, Xiangjun Xing, M. M. Zoeller, J. Roy, Ryszard Stroynowski, P. Rankin, Z. Ling, R. Greene, H. Tajima, D. Fujino, J. J. O'Neill, Yurii V. Mukhin, T. Riehle, S. W. Gray, W. S. Brower, P. Pomianowski, Ilya Kravchenko, Michael Wood, J. W. Hinson, M. Modesitt, S. Schrenk, Yanwen Liu, J. G. Smith, C. P. Jessop, and S. D. Johnson

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Branching fraction, Analytical chemistry
Abstract

We present a model-independent measurement of B(D s − → Φπ − ) B(D 0 → K − π + ) by partially reconstructing the decay B 0 → D ∗+ D s ∗− . Using data collected with the CLEO II detector at CESR, we determine B(D s − → Φπ − ) B(D 0 → K − π + ) = 0.92 ± 0.20 (stat.) ± 0.11(syst.) . Our measurement of B ( D 0 → K − π + ) then gives B ( D s − → Φπ − ) = (3.59 ± 0.77 ± 0.48)%.

Published
1996
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3. A measurement of

Author

D. He, R. Ammar, Sheldon Stone, T. E. Coan, H. Severini, S. Chan, T. Riehle, V. Savinov, C. O'Grady, J. Urheim, Paul Avery, P. Skubic, M. Yurko, A. Freyberger, R. Wang, S. W. Gray, Philip Baringer, Xiangjun Xing, D. M. Coffman, M. Gao, T. Liu, T. K. Nelson, B. K. Heltsley, R. Ehrlich, G. D. Gollin, Alain Bellerive, C. Bebek, D. Fujino, J. J. O'Neill, B. C. Barish, H. Marsiske, K. W. McLean, M. M. Zoeller, A. H. Mahmood, S. L. Jones, Y. Kwon, D. Z. Besson, K. K. Gan, R. Fulton, D. H. Miller, P. M. Patel, Pu Wang, T. Miao, J. Dominick, W. R. Ross, P. Pomianowski, D. L. Kreinick, Yurii V. Mukhin, D. Gibaut, S. Nakanishi, E. H. Thorndike, M. Athanas, D. Riley, Sacha E Kopp, D. M. Asner, V. Fadeyev, C. Ward, J. Gronberg, M. S. Alam, R. Wanke, Ilya Kravchenko, T. E. Browder, I. Volobouev, J. Roy, C. D. Jones, Harold S. Park, P. Gaidarev, D. Coppage, A. Wolf, J. P. Alexander, Michael Wood, J. Bartelt, Alice Bean, S.C. Timm, G. Wei, Ryszard Stroynowski, J. S. Miller, S. Roberts, J. W. Hinson, J. J. Thaler, M. Modesitt, B. E. Berger, Z. Ling, X. Fu, S. Sanghera, M. L. Perl, N. Horwitz, M. Chadha, P. Rankin, R. Kutschke, I. P.J. Shipsey, M. Goldberg, Yuichi Kubota, S. F. Schaffner, R. Greene, M. Lattery, N. Hancock, R. Davis, J. Mevissen, H. Yamamoto, J. Kandaswamy, E. Nordberg, Jeffrey Richman, G. S. Ludwig, Marina Artuso, Richard Wilson, G. C. Moneti, C. R. Sun, W. T. Ford, R. D. Kass, J. Fast, M. Ogg, Juliet Ritchie Patterson, G. Masek, J. Masui, B. Spaan, S. Schrenk, Yanwen Liu, J. G. Smith, C. P. Jessop, S. D. Johnson, G. E. Gladding, S. Patton, R. Balest, E. I. Shibata, T. Bergfeld, A. Undrus, P. C. Kim, R. A. Briere, H. Tajima, Christopher G. White, M. Dickson, Vivek Jain, D. Peterson, M.A. Palmer, C. Qiao, M. Sung, Shengfeng Yang, D. Roberts, H. A. Cho, C.Y. Prescott, P. J. Lee, S. E. Csorna, D. L. Hartill, S. Playfer, D. J. Dumas, D. B. MacFarlane, A. J. Weinstein, Tomasz Skwarnicki, R. Poling, C. R. Ng, S. Kotov, H. N. Nelson, K. Kinoshita, G. W. Brandenburg, D. W. Bliss, Karl Berkelman, Michael S. Witherell, A. Efimov, S. J. Richichi, W. S. Brower, R. Janicek, L. Gibbons, N. Kwak, Anders Ryd, M. Bishai, Sz Márka, H. P. Paar, E. Gerndt, Kenneth Bloom, K. W. Edwards, J. L. Rodriguez, F. Li, N. Katayama, Frank Würthwein, S. Menary, G. Eigen, Dave Britton, K. Cho, N. B. Mistry, V. Shelkov, P. S. Drell, R. Elia, K. Lingel, M. Saulnier, J. Ernst, D. Cinabro, B. Nemati, B. Gittelman, I. J. Kim, F. R. Wappler, H. Kagan, M. Lohner, R. J. Morrison, Mats A Selen, A. J. Sadoff, A. Soffer, S. Anderson, D. S. Crowcroft, John Yelton, M. Lambrecht, K. Honscheid, C. M. Korte, J. E. Duboscq, T. Lee, M. Schmidtler, I. Korolkov, N. Copty, J. K. Nelson, R. Mountain, D. G. Cassel, and B. I. Eisenstein

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Analytical chemistry, Cornell Electron Storage Ring
Abstract

Using a sample of 3.1 fb−1 integrated luminosity accumulated with the CLEO II detector at the Cornell Electron Storage Ring, we measure the ratio of branching fractions β(D 0 → K − π + π 0 ) β(D 0 → K − gp + ) = 3.81 ± 0.07 ± 0.26 , the most precise determination of this quantity to date.

Published
1996
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4. Observation of new decay modes of the charmed-strange baryon Ξc+

Author

C. Bebek, A. P. Freyberger, J. S. Miller, M. Modesitt, D. He, E. I. Shibata, R. Davis, D. Riley, M. Lohner, S. Schrenk, T. E. Browder, Yanwen Liu, J. G. Smith, S. Nakanishi, F. Muheim, E. H. Thorndike, J. Roy, Harold S. Park, Alice Bean, R. Kutschke, Ryszard Stroynowski, S. D. Johnson, D. M. Asner, M.A. Palmer, S. Kotov, R. Janicek, D. H. Miller, D. Coppage, J. P. Alexander, Jungil Lee, P. Rankin, R. Ehrlich, P. Gaidarev, I. Korolkov, Z. Ling, N. Copty, J. Bartelt, P. S. Drell, D. J. Dumas, Kenneth Bloom, T. Riehle, M. Ogg, N. Katayama, X. Fu, G. Eigen, I. P.J. Shipsey, R. Elia, Jorge Luis Rodriguez, M. Saulnier, S. L. Jones, S. Playfer, Y. Kwon, Karl Berkelman, P. Skubic, J. Ernst, J. Dominick, S. W. Gray, L. Gibbons, D. Gibaut, C. Ward, Yuichi Kubota, D. Z. Besson, D. G. Cassel, B. Nemati, B. Gittelman, Shengfeng Yang, T. Miao, J. Gronberg, S.C. Timm, N. Horwitz, M. Chadha, V. Savinov, A. H. Mahmood, W. S. Brower, M. Gao, M. Sung, D. Roberts, D. F. Cowen, H. P. Paar, R. Fulton, P. Pomianowski, D. M. Coffman, Frank Würthwein, K. Cho, RM Patel, J. D. Richman, Shawn W. Henderson, Richard Wilson, V. Fadeyev, N. B. Mistry, M. Dickson, John Yelton, M. Lambrecht, B. K. Heltsley, K. Honscheid, J. Fast, H. Tajima, Sacha E Kopp, Philip Baringer, Ilya Kravchenko, Michael Wood, R. Ammar, C. M. Korte, B. I. Eisenstein, M. S. Alam, R. Wanke, I. J. Kim, T. Lee, H. Kagan, G. D. Gollin, Christopher G. White, J. K. Nelson, E. Nordberg, Xiangjun Xing, B. C. Barish, J. Masui, J. W. Hinson, B. Spaan, S. E. Csorna, W. R. Ross, J. E. Duboscq, D. Fujino, G. S. Ludwig, J. J. Thaler, R. Mountain, D. L. Kreinick, Anders Ryd, M. Athanas, Marina Artuso, H. Severini, S. Chan, E. Gerndt, Sz Márka, K. W. Edwards, C. O'Grady, E. R.F. Hyatt, M. Lattery, H. Yamamoto, J. J. O'Neill, T. E. Coan, D. B. MacFarlane, A. J. Weinstein, C. Qiao, I. Volobouev, R. J. Morrison, S. Roberts, N. Kwak, Mats A Selen, M. Bishai, A. J. Sadoff, Yurii V. Mukhin, Vivek Jain, Ruifang Wang, Tomasz Skwarnicki, H. N. Nelson, T. Bergfeld, K. Kinoshita, G. W. Brandenburg, D. L. Hartill, A. Soffer, Sheldon Stone, S. Menary, D. Cinabro, G. E. Gladding, Paul Avery, S. Patton, D. S. Crowcroft, V. Shelkov, C.Y. Prescott, Alain Bellerive, C. D. Jones, J. Mevissen, Pu Wang, K. W. McLean, J. Kandaswamy, B. E. Berger, F. R. Wappler, C. R. Sun, W. T. Ford, G. Crawford, R. D. Kass, R. Balest, D. Peterson, K. Lingel, G. Wei, H. A. Cho, K. K. Gan, R. Poling, P. C. Kim, M. Goldberg, G. C. Moneti, C. R. Ng, T. K. Nelson, Michael S. Witherell, D. W. Bliss, M. M. Zoeller, A. Wolf, G. Masek, Juliet Ritchie Patterson, D. L. Britton, S. Sanghera, N. Hancock, J. Urheim, and T. Liu

Subjects
Nuclear physics, Baryon, Physics, Nuclear and High Energy Physics, Electron–positron annihilation, Mass spectrum, Cornell Electron Storage Ring, Branching (polymer chemistry)
Abstract

Using the CLEO II detector operating at the e + e − Cornell Electron Storage Ring (CESR), we present evidence for new decay modes of the Ξ c + into Ξ 0 π + , Ξ 0 π + π 0 , and Ξ 0 π + π − π + . The branching ratios of these decay modes, relative to Ξ c + → Ξ − π + π + , have been measured to be 0.55±0.13±0.09, 2.34±0.57±0.37, and 1.74±0.42±0.27, respectively.

Published
1996
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5. Study of B → ψϱ

Author

T. Lee, M. Schmidtler, J. K. Nelson, S. Schrenk, Yanwen Liu, J. G. Smith, C. P. Jessop, S. D. Johnson, S. Nakanishi, E. H. Thorndike, Jungil Lee, R. Mountain, D. Coppage, Sheldon Stone, Paul Avery, T. Liu, C. Bebek, A. Freyberger, J. Masui, B. Spaan, D. G. Cassel, T. Riehle, M. M. Zoeller, D. Fujino, M. Ogg, G. Masek, C. R. Sun, W. T. Ford, R. D. Kass, D. Riley, R. Balest, Vivek Jain, E. Gerndt, N. Kwak, M. Bishai, Juliet Ritchie Patterson, D. J. Dumas, J. J. O'Neill, W. R. Ross, K. W. Edwards, K. K. Gan, D. M. Asner, S. W. Gray, P. Gaidarev, Yurii V. Mukhin, T. Miao, D. Cinabro, Karl Berkelman, X. Fu, W. S. Brower, J. S. Miller, D. W. Bliss, A. Efimov, B. I. Eisenstein, I. Volobouev, J. Roy, C. M. Korte, J. Bartelt, Ryszard Stroynowski, H. Marsiske, P. Pomianowski, T. K. Nelson, B. Nemati, T. Bergfeld, J. E. Duboscq, L. Gibbons, R. Ammar, M. Dickson, R. J. Morrison, Mats A Selen, R. A. Briere, S. Menary, Dave Britton, I. Korolkov, C. Ward, P. Rankin, T. E. Coan, B. Gittelman, A. J. Sadoff, D. Gibaut, C. Qiao, N. Copty, R. Davis, P. C. Kim, Ilya Kravchenko, Z. Ling, V. Shelkov, J. Gronberg, Michael Wood, Harold S. Park, M. L. Perl, J. Mevissen, J. W. Hinson, J. Kandaswamy, K. Kinoshita, Yuichi Kubota, S. F. Schaffner, David Miller, B. C. Barish, Alice Bean, H. Severini, S. Chan, C. O'Grady, S.C. Timm, N. Horwitz, A. H. Mahmood, Harris Kagan, C.Y. Prescott, S. E. Csoraa, H. A. Cho, I. J. Kim, J. Urheim, F. R. Wappler, C. D. Jones, M. Chadha, Pu Wang, John Yelton, M. Lambrecht, R. Kutschke, D. Peterson, Richard Wilson, S. Playfer, D. L. Kreinick, B. E. Berger, A. Soffer, V. Fadeyev, G. C. Moneti, M. Goldberg, R. Wang, Ian Shipsey, D. He, F. Li, Kenneth Bloom, V. Savinov, H. Tajima, M. Sung, D. S. Crowcroft, D. L. Hartill, D. Roberts, R. Poling, J. J. Thaler, N. Katayama, Sacha E Kopp, M. S. Alam, E. I. Shibata, C. R. Ng, G. Eigen, Marina Artuso, R. Wanke, Shengfeng Yang, M. Lohner, Anders Ryd, J. L. Rodriguez, Michael S. Witherell, G. Brandenburg, K. Honscheic, T. E. Browder, M. Athanas, M. Lattery, Frank Würthwein, K. Cho, Sz Márka, Philip Baringer, N. B. Mistry, J. Fast, S. Kotov, Alain Bellerive, P. S. Drell, Christopher G. White, H. Yamamoto, K. W. McLean, R. Janicek, R. Elia, Xiangjun Xing, K. Lingel, M. Saulnier, J. Ernst, P. M. Patel, A. Wolf, S. Roberts, G. Wei, S. Sanghera, R. Ehrlich, N. Hancock, M.A. Palmer, S. L. Jones, J. P. Alexander, M. Gao, P. Skubic, J. Dominick, H. P. Paar, R. Fulton, Y. Kwon, D. M. Coffman, D. Z. Besson, E. Nordberg, Jeffrey Richman, B. K. Heltsley, G. S. Ludwig, D. B. MacFarlane, A. J. Weinstein, G. D. Gollin, Tomasz Skwarnicki, H. N. Nelson, S. J. Richichi, G. E. Gladding, S. Patton, A. Undrus, and M. Modesitt

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Nuclear magnetic resonance, Branching fraction, Branching (polymer chemistry)
Abstract

We have studied the Cabibbo suppressed and color suppressed two-body decays B to ψϱ (ψω or ψa 1 ). Using a data sample of 5.12 million B decays collected with the CLEO II detector we find the 90% confidence level upper limits for branching fractions of B 0 → ψϱ 0 and B 0 → ψω to be 2.5 · 10 −4 and 2.7 · 10 −4 , respectively. We also update the branching fraction B − → ψπ − to be (5.6 ± 2.7) · 10 −5 .

Published
1996
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6. Observation of the Ξ+ charmed baryon decays to Σ+K−π+, Σ, and ΛK−π+π+

Author

T. Bergfeld, B.I. Eisenstein, J. Ernst, G.E. Gladding, G.D. Gollin, M. Palmer, M. Selen, J.J. Thaler, K.W. Edwards, K.W. McLean, M. Ogg, A. Bellerive, D.I. Britton, E.R.F. Hyatt, R. Janicek, D.B. MacFarlane, P.M. Patel, B. Spaan, A.J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, N. Copty, R. Davis, N. Hancock, S. Kotov, I. Kravchenko, N. Kwak, Y. Kubota, M. Lattery, M. Momayezi, J.K. Nelson, S. Patton, R. Poling, V. Savinov, S. Schrenk, R. Wang, M.S. Alam, I.J. Kim, Z. Ling, A.H. Mahmood, J.J. O'Neill, H. Severini, C.R. Sun, F. Wappler, G. Crawford, J.E. Duboscq, R. Fulton, D. Fujino, K.K. Gan, K. Honscheid, H. Kagan, R. Kass, J. Lee, M. Sung, C. White, A. Wolf, M.M. Zoeller, X. Fu, B. Nemati, W.R. Ross, P. Skubic, M. Wood, M. Bishai, J. Fast, E. Gerndt, J.W. Hinson, T. Miao, D.H. Miller, M. Modesitt, E.I. Shibata, I.P.J. Shipsey, P.N. Wang, L. Gibbons, S.D. Johnson, Y. Kwon, S. Roberts, E.H. Thorndike, T.E. Coan, J. Dominick, V. Fadeyev, I. Korolkov, M. Lambrecht, S. Sanghera, V. Shelkov, T. Skwarnicki, R. Stroynowski, I. Volobouev, G. Wei, M. Artuso, M. Gao, M. Goldberg, D. He, N. Horwitz, S. Kopp, G.C. Moneti, R. Mountain, F. Muheim, Y. Mukhin, S. Playfer, S. Stone, X. Xing, J. Bartelt, S.E. Csorna, V. Jain, S. Marka, D. Gibaut, K. Kinoshita, P. Pomianowski, B. Barish, M. Chadha, S. Chan, D.F. Cowen, G. Eigen, J.S. Miller, C. O'Grady, J. Urheim, A.J. Weinstein, F. Würthwein, D.M. Asner, M. Athanas, D.W. Bliss, W.S. Brower, G. Masek, H.P. Paar, J. Gronberg, C.M. Korte, R. Kutschke, S. Menary, R.J. Morrison, S. Nakanishi, H.N. Nelson, T.K. Nelson, C. Qiao, J.D. Richman, D. Roberts, A. Ryd, H. Tajima, M.S. Witherell, R. Balest, K. Cho, W.T. Ford, M. Lohner, H. Park, P. Rankin, J.G. Smith, J.P. Alexander, C. Bebek, B.E. Berger, K. Berkelman, K. Bloom, T.E. Browder, D.G. Cassel, H.A. Cho, D.M. Coffman, D.S. Crowcroft, M. Dickson, P.S. Drell, D.J. Dumas, R. Ehrlich, R. Elia, P. Gaidarev, M. Garcia-Sciveres, B. Gittelman, S.W. Gray, D.L. Hartill, B.K. Heltsley, S. Henderson, C.D. Jones, S.L. Jones, J. Kandaswamy, N. Katayama, P.C. Kim, D.L. Kreinick, T. Lee, Y. Liu, G.S. Ludwig, J. Masui, J. Mevissen, N.B. Mistry, C.R. Ng, E. Nordberg, J.R. Patterson, D. Peterson, D. Riley, A. Soffer, P. Avery, A. Freyberger, K. Lingel, C. Prescott, J. Rodriguez, S. Yang, J. Yelton, G. Brandenburg, D. Cinabro, T. Liu, M. Saulnier, R. Wilson, and H. Yamamoto

Subjects
Baryon, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, 0103 physical sciences, Pi, Sigma, 010306 general physics, Lambda, 01 natural sciences, Bar (unit)
Abstract

We have observed two new decay modes of the charmed baryon $\Xi_c^+$ into $\Sigma^+ K^-\pi^+$ and $\Sigma^+ \bar{K}^{*0}$ using data collected with the CLEO II detector. We also present the first measurement of the branching fraction for the previously observed decay mode $\Xi_c^+\to\Lambda K^-\pi^+\pi^+$. The branching fractions for these three modes relative to $\Xi_c^+\to\Xi^-\pi^+\pi^+$ are measured to be $1.18 \pm 0.26 \pm 0.17$, $0.92 \pm 0.27 \pm 0.14$, and $0.58 \pm 0.16 \pm 0.07$, respectively.

Published
1996
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7. Measurement of α from τ decays

Author

Pu Wang, E. I. Shibata, T. E. Coan, D. B. MacFarlane, Jungil Lee, A. J. Weinstein, E. Gerndt, D. M. Coffman, H. N. Nelson, K. W. Edwards, J. Masui, Z. Egyed, B. Spaan, J. K. Nelson, B. K. Heltsley, R. Ehrlich, D. Z. Besson, Anders Ryd, M. Athanas, M. Dickson, G. D. Gollin, S. L. Jones, T. Liu, C. Bebek, N. Kwak, J. Dominick, A. P. Freyberger, M. Bishai, M. Sivertz, C. Qiao, R. Mountain, Vivek Jain, Ruifang Wang, T. Miao, S. Nakanishi, E. H. Thorndike, T. Bergfeld, V. Fadeyev, S. Menary, Dave Britton, John Yelton, M. Sung, D. Coppage, R. L. McIlwain, M. Lambrecht, J. P. Alexander, D. G. Cassel, D. Gibaut, V. Shelkov, S. Schrenk, D. Roberts, F. Muheim, D. L. Kreinick, M. Ogg, R. S. Galik, D. J. Dumas, S. Roberts, S. Playfer, Ryszard Stroynowski, Karl Berkelman, D. L. Hartill, A. Soffer, J. Fast, P. Rankin, D. S. Crowcroft, Christopher G. White, G. Zhu, Marina Artuso, B. Nemati, B. I. Eisenstein, V. Savinov, D. Cinabro, G. E. Gladding, D. H. Miller, S. Patton, Yoram Rozen, F. R. Wappler, Youngjoon Kwon, G. Crawford, Frank Würthwein, K. Cho, H. Kagan, Philip Baringer, Shengfeng Yang, B. Gittelman, Xiangjun Xing, D. F. Cowen, R. J. Morrison, Mats A Selen, M. S. Alam, A. J. Sadoff, M. Gao, P. Gaidarev, E. R.F. Hyatt, M. Lattery, H. P. Paar, R. Fulton, J. S. Miller, X. Fu, M. Modesitt, J. Urheim, I. J. Kim, R. Ammar, E. Nordberg, H. Severini, S. Chan, G. S. Ludwig, C. O'Grady, C. D. Jones, H. Yamamoto, Maurice Garcia-Sciveres, Yanwen Liu, J. G. Smith, Z. Ling, K. K. Gan, T. Skwarnicki, D. He, B. E. Berger, W. S. Brower, P. C. Kim, T. E. Browder, P. Pomianowski, I. P.J. Shipsey, M. Goldberg, G. C. Moneti, Harold S. Park, Alice Bean, Ilya Kravchenko, Michael Wood, J. W. Hinson, A. Wolf, R. Kutschke, S. Sanghera, M.A. Palmer, Kenneth Bloom, M. Lohner, N. Katayama, M. L. Kelly, S. W. Gray, D. W. Bliss, N. Hancock, G. Eigen, Ha Lam, J. D. Richman, B. C. Barish, P. Skubic, D. Riley, S. E. Csorna, P. S. Drell, R. Elia, Jorge Luis Rodriguez, M. Saulnier, J. Ernst, G. Wei, K. Kinoshita, G. W. Brandenburg, D. Payne, H. A. Cho, D. M. Asner, R. Poling, C. R. Ng, Michael S. Witherell, G. Masek, Juliet Ritchie Patterson, J. Bartelt, Shawn W. Henderson, H. Tajima, T. K. Nelson, M. M. Zoeller, K. Honscheid, Yuichi Kubota, N. B. Mistry, C. M. Korte, D. Fujino, J. J. O'Neill, Yurii V. Mukhin, Alain Bellerive, K. W. McLean, P. M. Patel, L. Gibbons, K. Lingel, W. R. Ross, R. Davis, J. Gronberg, N. Horwitz, M. Chadha, I. Volobouev, I. Korolkov, S. Kotov, J. J. Thaler, N. Copty, Richard Wilson, R. Janicek, J. Mevissen, M. Momayezi, J. Kandaswamy, D. Peterson, C. R. Sun, W. T. Ford, R. D. Kass, R. Balest, Sheldon Stone, Paul Avery, and A. H. Mahmood

Subjects
Quantum chromodynamics, Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Spectral moments, Electron–positron annihilation, Hadron, Mass spectrum, High Energy Physics::Experiment, Invariant mass, Constant (mathematics), Parametrization
Abstract

We present measurements of spectral moments extracted from the invariant mass distributions of the final states of hadronic τ decay products recorded in the CLEO detector. From a fit of theoretical predictions to the measurements of spectral moments and the total hadronic decay width of the τ, we determine the strong coupling constant and a set of non-perturbative QCD parameters. The strong coupling constant is measured to be α s ( m τ ) = 0.306 ± 0.024, which when extrapolated to the Z mass, yields α s ( M z ) = 0.114 ± 0.003.

Published
1995
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8. Measurement of the decay asymmetry parameters in Λ+ → Λπ+ and Λ+ → Σ+π0

Author

M. Bishai, J. Fast, E. Gerndt, J.W. Hinson, R.L. McIlwain, T. Miao, D.H. Miller, M. Modesitt, D. Payne, E.I. Shibata, I.P.J. Shipsey, P.N. Wang, M. Battle, J. Ernst, L. Gibbons, Y. Kwon, S. Roberts, E.H. Thorndike, C.H. Wang, J. Dominick, M. Lambrecht, S. Sanghera, V. Shelkov, T. Skwarnicki, R. Stroynowski, I. Volobouev, G. Wei, M. Artuso, M. Gao, M. Goldberg, D. He, N. Horwitz, G.C. Moneti, R. Mountain, F. Muheim, Y. Mukhin, S. Playfer, Y. Rozen, S. Stone, X. Xing, G. Zhu, J. Bartelt, S.E. Csorna, Z. Egyed, V. Jain, D. Gibaut, K. Kinoshita, P. Pomianowski, B. Barish, M. Chadha, S. Chan, D.F. Cowen, G. Eigen, J.S. Miller, C. O'Grady, J. Urheim, A.J. Weinstein, M. Athanas, W. Brower, G. Masek, H.P. Paar, J. Gronberg, C.M. Korte, R. Kutschke, S. Menary, R.J. Morrison, S. Nakanishi, H.N. Nelson, T.K. Nelson, C. Qiao, J.D. Richman, A. Ryd, D. Sperka, H. Tajima, M.S. Witherell, M. Procario, R. Balest, K. Cho, W.T. Ford, D.R. Johnson, K. Lingel, M. Lohner, P. Rankin, J.G. Smith, J.P. Alexander, C. Bebek, K. Berkelman, K. Bloom, T.E. Browder, D.G. Cassel, H.A. Cho, D.M. Coffman, D.S. Crowcroft, P.S. Drell, D.J. Dumas, R. Ehrlich, P. Gaidarev, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S.W. Gray, D.L. Hartill, B.K. Heltsley, S. Henderson, C.D. Jones, S.L. Jones, J. Kandaswamy, N. Katayama, P.C. Kim, D.L. Kreinick, G.S. Ludwig, J. Masui, J. Mevissen, N.B. Mistry, C.R. Ng, E. Nordberg, J.R. Patterson, D. Peterson, D. Riley, S. Salman, M. Sapper, F. Würthwein, P. Avery, A. Freyberger, J. Rodriguez, S. Yang, J. Yelton, D. Cinabro, T. Liu, M. Saulnier, R. Wilson, H. Yamamoto, T. Bergfeld, B.I. Eisenstein, G. Gollin, B. Ong, M. Palmer, M. Selen, J.J. Thaler, K.W. Edwards, M. Ogg, A. Bellerive, D.I. Britton, E.R.F. Hyatt, D.B. MacFarlane, P.M. Patel, B. Spaan, A.J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, N. Copty, R. Davis, N. Hancock, M. Kelly, S. Kotov, I. Kravchenko, N. Kwak, H. Lam, Y. Kubota, M. Lattery, M. Momayezi, J.K. Nelson, S. Patton, R. Poling, V. Savinov, S. Schrenk, R. Wang, M.S. Alam, I.J. Kim, Z. Ling, A.H. Mahmood, J.J. O'Neill, H. Severini, C.R. Sun, F. Wappler, G. Crawford, C.M. Daubenmier, R. Fulton, D. Fujino, K.K. Gan, K. Honscheid, H. Kagan, R. Kass, J. Lee, M. Sung, C. White, A. Wolf, M.M. Zoeller, F. Butler, X. Fu, B. Nemati, W.R. Ross, P. Skubic, and M. Wood

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, media_common.quotation_subject, High Energy Physics::Phenomenology, Sigma, Astrophysics::Cosmology and Extragalactic Astrophysics, Lambda, Asymmetry, Baryon, Amplitude, Pi, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics, media_common
Abstract

We have measured the weak decay asymmetry parameters ($\aLC $) for two \LC\ decay modes. Our measurements are $\aLC = -0.94^{+0.21+0.12}_{-0.06-0.06} $ for the decay mode $\Lambda_c^+ \to \Lambda\pi^+ $ and $\aLC = -0.45\pm 0.31 \pm 0.06$ for the decay mode $\Lambda_c \to \Sigma^+\pi^0 $. By combining these measurements with the previously measured decay rates, we have extracted the parity-violating and parity-conserving amplitudes. These amplitudes are used to test models of nonleptonic charmed baryon decay.

Published
1995
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9. Observation of B → ψπ decays

Author

B. Geiser, J. Gronberg, N. Horwitz, M. Lohner, T. Skwarnicki, M. Chadha, M. S. Alam, P. C. Kim, M. Sung, J. Ernst, J. Urheim, E. R.F. Hyatt, M. Lattery, J. Mevissen, Alain Bellerive, J. Kandaswamy, P. M. Patel, M. L. Kelly, S. E. Csorna, Sheldon Stone, D. G. Cassel, D. Peterson, Paul Avery, Anders Ryd, M. Athanas, S. W. Gray, T. Liu, K. Kinoshita, H. Kagan, P. S. Drell, C. Bebek, M. Modesitt, Jorge Luis Rodriguez, M. Saulnier, C. D. Jones, A. P. Freyberger, D. H. Miller, P. Zadorozhny, F. Muheim, P. Gaidarev, X. Fu, R. J. Morrison, Mats A Selen, A. J. Sadoff, B. I. Eisenstein, Richard Wilson, M. Gao, H. P. Paar, J. G. Smith, R. Davis, George D Gollin, D. J. Dumas, B. Nemati, D. Gibaut, K. Cho, T. K. Nelson, J. J. Thaler, B. Gittelman, C. M. Daubenmier, Ryszard Stroynowski, D. Cinabro, C. R. Sun, J. K. Nelson, W. T. Ford, Karl Berkelman, I. J. Kim, F. R. Wappler, N. B. Mistry, R. D. Kass, M. M. Zoeller, Marina Artuso, R. Fulton, R. Balest, S. Playfer, S. Nakanishi, D. S. Crowcroft, W. S. Brower, E. H. Thorndike, R. Mountain, S. Patton, S. Sanghera, Y. Skovpen, M. Momayezi, P. Rankin, M. Goldberg, W. R. Ross, P. Pomianowski, L. Gibbons, G. C. Moneti, G. Zhu, N. Kwak, D. Riley, N. Hancock, M. Sapper, Y. Kwon, M. Bishai, I. Volobouev, Ilya Kravchenko, S. Salman, D. Coppage, G. Crawford, Chunjie Wang, Michael Wood, E. Nordberg, Jeffrey Richman, Maurice Garcia-Sciveres, Daniel Johnson, D. Z. Besson, J. Bartelt, J. P. Alexander, F. Butler, E. I. Shibata, S. Menary, G. S. Ludwig, R. Malchow, K. Lingel, Dave Britton, R. L. McIlwain, Ha Lam, John Yelton, K. K. Gan, M. Lambrecht, M. Ogg, Shengfeng Yang, V. Shelkov, S. Schrenk, R. Ammar, Yuichi Kubota, H. Severini, A. H. Mahmood, D. F. Cowen, B. C. Barish, J. Masui, B. Spaan, Vivek Jain, Pu Wang, D. B. MacFarlane, C. Qiao, S. Chan, Jungil Lee, A. J. Weinstein, D. M. Coffman, C. O'Grady, H. N. Nelson, B. K. Heltsley, D. He, T. E. Browder, T. Miao, P. Skubic, D. Fujino, J. J. O'Neill, Shawn W. Henderson, Yurii V. Mukhin, Z. Ling, I. P.J. Shipsey, H. Tajima, E. Gerndt, K. W. Edwards, Z. Egyed, D. Sperka, Ruifang Wang, T. Bergfeld, M.A. Palmer, G. Wei, D. Payne, H. A. Cho, D. L. Hartill, B. Ong, R. Poling, C. R. Ng, Michael S. Witherell, H. Yamamoto, G. Masek, J. Fast, Juliet Ritchie Patterson, Christopher G. White, K. Honscheid, N. Copty, V. Savinov, Yoram Rozen, F. Würthwein, Philip Baringer, Xiangjun Xing, D. L. Kreinick, S. Roberts, M. Battle, R. Ehrlich, S. L. Jones, J. Dominick, J. S. Miller, Alice Bean, R. Kutschke, Kenneth Bloom, N. Katayama, G. Eigen, and S. Kotov

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, Detector, Cornell Electron Storage Ring
Abstract

We have found the first evidence for the Cabibbo suppressed, color suppressed decay B − → ψπ − in a data sample of 4 million B decays obtained by the CLEO detector at the Cornell Electron Storage Ring (CESR). The branching ratio is found to be (4.3±2.3)% of the Cabibbo allowed B − → ψK − decay mode, which is consistent with theoretical expectations.

Published
1995
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10. Measurement of the branching fraction for γ (1S) → τ+τ−

Author

D. Cinabro, T. Liu, M. Saulnier, R. Wilson, H. Yamamoto, T. Bergfeld, B.I. Eisenstein, G. Gollin, B. Ong, M. Palmer, M. Selen, J.J. Thaler, K.W. Edwards, M. Ogg, A. Bellerive, D.I. Britton, E.R.F. Hyatt, D.B. MacFarlane, P.M. Patel, B. Spaan, A.J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, N. Copty, R. Davis, N. Hancock, M. Kelly, S. Kotov, I. Kravchenko, N. Kwak, H. Lam, Y. Kubota, M. Lattery, M. Momayezi, J.K. Nelson, S. Patton, R. Poling, V. Savinov, S. Schrenk, R. Wang, M.S. Alam, I.J. Kim, Z. Ling, A.H. Mahmood, J.J. O'Neill, H. Severini, C.R. Sun, F. Wappler, G. Crawford, C.M. Daubenmier, R. Fulton, D. Fujino, K.K. Gan, K. Honscheid, H. Kagan, R. Kass, J. Lee, R. Malchow, M. Sung, C. White, M.M. Zoeller, F. Butler, X. Fu, B. Nemati, W.R. Ross, P. Skubic, M. Wood, M. Bishai, J. Fast, E. Gerndt, J.W. Hinson, R.L. McIlwain, T. Miao, D.H. Miller, M. Modesitt, D. Payne, E.I. Shibata, I.P.J. Shipsey, P.N. Wang, M. Battle, J. Ernst, L. Gibbons, Y. Kwon, S. Roberts, E.H. Thorndike, C.H. Wang, J. Dominick, M. Lambrecht, S. Sanghera, V. Shelkov, T. Skwarnicki, R. Stroynowski, I. Volobouev, G. Wei, P. Zadorozhny, M. Artuso, M. Gao, M. Goldberg, D. He, N. Horwitz, G.C. Moneti, R. Mountain, F. Muheim, Y. Mukhin, S. Playfer, Y. Rozen, S. Stone, X. Xing, G. Zhu, J. Bartelt, S.E. Csorna, Z. Egyed, V. Jain, D. Gibaut, K. Kinoshita, P. Pomianowski, B. Barish, M. Chadha, S. Chan, D.F. Cowen, G. Eigen, J.S. Miller, C. O'Grady, J. Urheim, A.J. Weinstein, M. Athanas, W. Brower, G. Masek, H.P. Paar, M. Sivertz, J. Gronberg, R. Kutschke, S. Menary, R.J. Morrison, S. Nakanishi, H.N. Nelson, T.K. Nelson, C. Qiao, J.D. Richman, A. Ryd, D. Sperka, H. Tajima, M.S. Witherell, R. Balest, K. Cho, W.T. Ford, D.R. Johnson, K. Lingel, M. Lohner, P. Rankin, J.G. Smith, J.P. Alexander, C. Bebek, K. Berkelman, K. Bloom, T.E. Browder, D.G. Cassel, H.A. Cho, D.M. Coffman, D.S. Crowcroft, P.S. Drell, D.J. Dumas, R. Ehrlich, P. Gaidarev, R.S. Galik, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S.W. Gray, D.L. Hartill, B.K. Heltsley, S. Henderson, C.D. Jones, S.L. Jones, J. Kandaswamy, N. Katayama, P.C. Kim, D.L. Kreinick, G.S. Ludwig, J. Masui, J. Mevissen, N.B. Mistry, C.R. Ng, E. Nordberg, J.R. Patterson, D. Peterson, D. Riley, S. Salman, M. Sapper, F. Würthwein, P. Avery, A. Freyberger, J. Rodriguez, S. Yang, and J. Yelton

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Universality (philosophy), Electron, 01 natural sciences, Resonance (particle physics), Charged particle, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Lepton
Abstract

We have studied the leptonic decay of the $\Upsilon (1S)$ resonance into tau pairs using the CLEO II detector. A clean sample of tau pair events is identified via events containing two charged particles where exactly one of the particles is an identified electron. We find $B(\Upsilon(1S) \to \tau^+ \tau^-) = (2.61~\pm~0.12~{+0.09\atop{-0.13}})%$. The result is consistent with expectations from lepton universality.

Published
1994
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11. Observation of D1 (2420)+ and D2∗(2460)+

Author

F. Wappler, S. Henderson, C. D. Jones, Y. Kwon, D. S. Crowcroft, J. K. Nelson, B. Geiser, D. Z. Besson, R. Mountain, M. Goldberg, Jungil Lee, W. S. Brower, D. Cinabro, K. K. Gan, Anders Ryd, M. Athanas, G. Crawford, D. H. Miller, S. Patton, P. Pomianowski, P. Zadorozhny, F. Muheim, M. Lohner, T. Liu, J. Masui, B. Spaan, Vivek Jain, Ilya Kravchenko, H. Kagan, S. Salman, C. Bebek, Kenneth Bloom, P. Gaidarev, Michael Wood, K. Lingel, X. Fu, J. W. Hinson, N. Katayama, J. Urheim, D. G. Cassel, Ian Shipsey, D. He, A. P. Freyberger, G. Eigen, R. Davis, Ha Lam, B. C. Barish, Daniel Johnson, S. Nakanishi, E. H. Thorndike, B. Ong, A. H. Mahmood, T. E. Browder, Z. Ling, George D Gollin, R. J. Morrison, S. Playfer, P. S. Drell, Mats A Selen, D. Coppage, D. L. Kreinick, D. J. Dumas, Alain Bellerive, T. Miao, S. E. Csorna, A. J. Sadoff, N. Copty, Jorge Luis Rodriguez, M. Saulnier, S. Kotov, J. P. Alexander, Sheldon Stone, Paul Avery, Karl Berkelman, K. Kinoshita, B. I. Eisenstein, K. Cho, M. L. Kelly, P. Skubic, S. Roberts, P. M. Patel, B. Nemati, J. Fast, F. Butler, N. B. Mistry, L. Gibbons, M. Battle, J. J. Thaler, J. Gronberg, S. W. Gray, N. Horwitz, B. Gittelman, M. Ogg, D. B. MacFarlane, A. J. Weinstein, D. Riley, G. C. Moneti, Christopher G. White, M. S. Alam, M. Chadha, M. Modesitt, Maurice Garcia-Sciveres, R. Ammar, R. Malchow, I. J. Kim, J. Mevissen, H. N. Nelson, C. M. Daubenmier, Ryszard Stroynowski, J. Bartelt, J. Kandaswamy, T. K. Nelson, H. Severini, S. Chan, J. Ernst, G. Zhu, X. Xing, M. Sung, M. Momayezi, H. Tajima, M. Sapper, C. O'Grady, E. I. Shibata, John Yelton, M. Lambrecht, P. Rankin, E. R.F. Hyatt, M. Lattery, J. G. Smith, Alice Bean, D. Peterson, M. Gao, C. R. Sun, W. T. Ford, H. P. Paar, R. Fulton, N. Kwak, R. Kutschke, M. Bishai, D. Fujino, J. J. O'Neill, Yuichi Kubota, M. M. Zoeller, R. D. Kass, R. Balest, Chunjie Wang, K. Honscheid, W. R. Ross, Richard Wilson, D. Gibaut, S. Menary, Dave Britton, R. L. McIlwain, E. Gerndt, I. Volobouev, Shengfeng Yang, Yurii V. Mukhin, K. W. Edwards, V. Shelkov, S. Schrenk, S. Sanghera, Z. Egyed, T. Skwarnicki, P. C. Kim, E. Nordberg, Jeffrey Richman, D. F. Cowen, D. Sperka, G. S. Ludwig, Ruifang Wang, N. Hancock, T. Bergfeld, C. Qiao, Pu Wang, Marina Artuso, H. Yamamoto, M.A. Palmer, J. S. Miller, R. Ehrlich, S. L. Jones, J. Dominick, V. Savinov, Yoram Rozen, F. Würthwein, Philip Baringer, D. Payne, H. A. Cho, D. L. Hartill, R. Poling, C. R. Ng, D. M. Coffman, Michael S. Witherell, B. K. Heltsley, G. Wei, G. Masek, and Juliet Ritchie Patterson

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Electron–positron annihilation, Isospin, State (functional analysis)
Abstract

Using the CLEO II detector at CESR, we have observed two charmed states, where the higher mass state decays to D0π+ and to D ∗0 π + , while the lower mass state decays to D ∗0 π + , but not to D0π+. The masses and widths were measured to be 2425±2±2 MeV/c2 and 26−7−4+8+4 MeV/c2 for the lower mass state, and 2463±3±3 MeV/c2 and 27−8−5+11+5 MeV/c2 for the higher mass state. Properties of these states, including their decay angular distributions and spin-parity assignments have been studied. The results of this analysis support the identification of these states as the charged L = 1 D 1 (2420) + and D 2 ∗ (2460) + , respectively. The isospin mass splittings between these states and their neutral partners have also been measured. This is the first full reconstruction of any decay mode of the D1 (2420)+ and the first observation of the decay of D 2 ∗ (2460) + to D ∗0 π + .

Published
1994
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12. Diamond detectors for high energy physics

Author

C. White, W. Dulinski, D. Fujino, K.K. Gan, R. Gilman, S. Han, J. Hassard, A. Howard, H. Kagan, S. Kanda, D. Kania, R. Kass, S.K. Kim, G. Kumbartski, M.H. Lee, K. Lister, R. Malchow, S. Margetides, L.S. Pan, P. Rutt, F. Sannes, S. Schnetzer, S.V. Somalwar, J. Straver, R. Stone, R. Tesarek, G.B. Thomson, W. Trischuk, Y. Sugimoto, P. Weilhammer, and S. Zhao

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Silicon, Position resolution, Detector, chemistry.chemical_element, A diamond, Chemical vapor deposition, chemistry, Charged particle detectors, Cathode ray, Instrumentation, Diamond detector
Abstract

We have constructed charged particle detectors using high quality CVD diamond. We report here the measurements of a diamond-tungsten sampling calorimeter and a diamond mustrip detector. The energy response and resolution (σEE) of the calorimeter were measured using an electron beam of energy 0.5 to 5.0 GeV, and compared with those from a silicon calorimeter of similar construction. We find σEE = (4.7 ± 2.7)%/E ⊕ (19.13 ± 0.86)%/√E ⊕ (2.3 ± 1.8)% for the diamond-tungsten calorimeter, where ⊕ indicates addition in quadrature, which is in good agreement with our result of σE/E = (3.89 ± 0.87)%/E ⊕ (19.73 ± 0.19)%/√E ⊕ (0.0 ± 1.6)% for the silicon-tungsten calorimeter. The CVD diamond mustrip detector consists of 50 μm wide strips on 100 μm centers. A signal-to-noise ratio of 6: 1 and a position resolution of 25 μm was observed during recent accelerator tests.

Published
1994
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13. Measurement of the ratios of form factors in the decay Ds+ → φe+ve

Author

D. M. Coffman, B. K. Heltsley, B. Geiser, K. Cho, N. B. Mistry, D. He, R. J. Morrison, Mats A Selen, A. J. Sadoff, T. E. Browder, M. Lohner, V. Savinov, Yoram Rozen, F. Würthwein, J. Masui, D. Cinabro, D. Fujino, S. Sanghera, R. Davis, George D Gollin, J. J. O'Neill, Alice Bean, B. Spaan, D. Gibaut, T. Skwarnicki, N. Hancock, J. K. Nelson, M. Momayezi, Yurii V. Mukhin, R. Kutschke, S. Patton, Philip Baringer, Xiangjun Xing, P. C. Kim, D. S. Crowcroft, Sheldon Stone, Paul Avery, P. Skubic, M. Sapper, R. Mountain, M. Sung, Anders Ryd, P. S. Drell, J. Mevissen, Vivek Jain, M. Athanas, Pu Wang, J. Kandaswamy, Jorge Luis Rodriguez, Shawn W. Henderson, N. Copty, Y. Kwon, T. K. Nelson, Daniel Johnson, M. Saulnier, G. Masek, Juliet Ritchie Patterson, G. C. Moneti, C. Qiao, R. Ehrlich, G. Crawford, Shengfeng Yang, M. L. Kelly, Z. Ling, Marina Artuso, D. Z. Besson, M. M. Zoeller, J. Urheim, D. H. Miller, S. W. Gray, Jon J Thaler, E. I. Shibata, I. P.J. Shipsey, D. Peterson, M. Modesitt, C. R. Sun, W. T. Ford, R. D. Kass, D. B. MacFarlane, S. L. Jones, R. Balest, P. Gaidarev, B. Nemati, Maurice Garcia-Sciveres, G. Zhu, K. K. Gan, S. Kotov, Y. Skovpen, A. J. Weinstein, X. Fu, D. L. Kreinick, B. Gittelman, M. S. Alam, D. J. Dumas, J. Dominick, F. Butler, D. F. Cowen, S. Nakanishi, E. H. Thorndike, R. Malchow, H. N. Nelson, T. Liu, H. Hagan, J. Ernst, I. J. Kim, J. G. Smith, W. R. Ross, F. R. Wappler, E. Gerndt, K. W. Edwards, Karl Berkelman, D. G. Cassel, Jungil Lee, John Yelton, M. Lambrecht, D. Coppage, J. S. Miller, C. Bebek, L. Gibbons, S. Roberts, C. D. Jones, E. R.F. Hyatt, Kenneth Bloom, M. Lattery, T. Miao, M. Battle, I. Volobouev, W. S. Brower, A. H. Mahmood, N. Katayama, J. Gronberg, P. Pomianowski, D. Payne, J. P. Alexander, H. A. Cho, Richard Wilson, S. E. Csorna, A. P. Freyberger, N. Horwitz, Z. Egyed, M. Chadha, N. Kwak, R. Ammar, K. Honscheid, M. Bishai, Ilya Kravchenko, S. Salman, G. Eigen, Michael Wood, M. Gao, H. P. Paar, R. Fulton, H. Tajima, M. Ogg, H. Severini, B. I. Eisenstein, M.A. Palmer, M. Goldberg, S. Chan, D. L. Hartill, D. Sperka, R. Poling, S. Menary, Dave Britton, C. O'Grady, C. M. Daubenmier, C. R. Ng, Ryszard Stroynowski, R. L. McIlwain, E. Nordberg, Jeffrey Richman, V. Shelkov, S. Schrenk, K. Kinoshita, Michael S. Witherell, G. S. Ludwig, P. Zadorozhny, F. Muheim, K. Lingel, P. Rankin, Ruifang Wang, Ha Lam, S. Playfer, T. Bergfeld, D. Riley, Chunjie Wang, B. C. Barish, G. Wei, H. Yamamoto, J. Bartelt, B. Ong, Yuichi Kubota, J. Fast, Christopher G. White, Alain Bellerive, and P. M. Patel

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Detector, Form factor (quantum field theory), Atomic physics, Pseudovector, Sample (graphics)
Abstract

The dynamics of the decay D s + → φe + v e are studied using a sample of 474 events recorded by the CLEO II detector. A three dimensional fit to the decay angles and q 2 is performed to extract the ratios of form factors R 2 = A 2 (0)/ A 1 (0) and R v = V (0 )/ A 1 (0), where A 1 (0) and A 2 (0) are the two axial vector form factors and V (0) is the vector form factor evaluated at q 2 =0. By assuming the single pole parameterization for the form factors, we obtain: R 2 =1.4±0.5±0.3 and R v =0.9±0.6±0.3.

Published
1994
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14. Observation ofΛc+ decays to Λπ+π0, Σ0π+, Σ0π+π0, and Σ0π−π+π+

Author

P. Zadorozhny, F. Muheim, B. Nemati, F. Morrow, D. Besson, T. K. Nelson, P. S. Drell, S. Nakanishi, H. Kagan, E. H. Thorndike, D. N. Brown, S. Playfer, Jorge Luis Rodriguez, D. Riley, M. Saulnier, D. Coppage, S. F. Schaffner, J. Bartelt, J. P. Alexander, Anders Ryd, M. Athanas, K. Sparks, R. J. Morrison, Mats A Selen, H. A. Cho, A. J. Sadoff, D. He, Yuichi Kubota, D. Fujino, J. J. O'Neill, D. L. Hartill, M. Sapper, T. E. Browder, W. R. Ross, Daniel Schmidt, Richard Wilson, R. Kennett, R. Poling, C. R. Ng, Yurii V. Mukhin, M. S. Alam, B. Gittelman, I. Volobouev, Michael S. Witherell, G. C. Moneti, Marina Artuso, P. Wilson, A. J. Weinstein, J. Ernst, I. J. Kim, R. Stephens, G. Crawford, M. Lattery, J. Urheim, H. N. Nelson, S. E. Csorna, E. I. Shibata, P. Skubic, D. M. Coffman, B. K. Heltsley, N. Kwak, K. Kinoshita, Daniela Bortoletto, N. Copty, I. P.J. Shipsey, C. R. Sun, F. Butler, W. T. Ford, K. Cho, R. Malchow, D. Cinabro, R. D. Kass, R. Balest, N. B. Mistry, J. Whitmore, Jungil Lee, S. Menary, B. Geiser, John Yelton, J. Gronberg, S. Patton, N. Horwitz, R. L. McIlwain, M. Chadha, D. H. Miller, F. Shen, R. Davis, H. P. Paar, R. Fulton, Maurice Garcia-Sciveres, R. Ammar, G. Masek, V. Shelkov, S. Schrenk, M. Lohner, D. Acosta, Juliet Ritchie Patterson, J. Mevissen, Daniel Johnson, X. Fu, T. Liu, T. Skwarnicki, M. Daoudi, J. Kandaswamy, Sheldon Stone, S. Sanghera, H. Severini, S. Chan, C. Bebek, Paul Avery, D. L. Kreinick, M. L. Kelly, K. K. Gan, Y. Skovpen, P. C. Kim, S. Henderson, N. Hancock, D. Peterson, A. P. Freyberger, C. O'Grady, George R. Kalbfleisch, S. W. Gray, K. Honscheid, H. Tajima, Hubert Kroha, S. Roberts, J. Snow, Pu Wang, M. Modesitt, M. Battle, M. Sung, E. Nordberg, Jeffrey Richman, G. S. Ludwig, M. M. Zoeller, Karl Berkelman, J. G. Smith, D. G. Cassel, M. Ogg, G. Zhu, T. Miao, K. Lingel, M. Procario, S. Salman, Michael Wood, H. Worden, M. Lambrecht, A. Bean, J. K. Nelson, S. Yang, B. Ong, J. Fast, Christopher G. White, Z. Egyed, D. Sperka, Ruifang Wang, D. F. Cowen, P. L. Wang, C. M. Daubenmier, Ryszard Stroynowski, P. Rankin, Chunjie Wang, D. Perticone, V. Savinov, Yoram Rozen, F. Würthwein, Philip Baringer, S. Ball, J. S. Miller, M. Thulasidas, R. Ehrlich, N. Katayama, S. L. Jones, D. S. Akerib, J. Dominick, G. Eigen, R. Kutschke, H. Yamamoto, Ha Lam, G. Vasseur, B. C. Barish, J. Masui, Vivek Jain, C. D. Jones, and M. Goldberg

Subjects
Nuclear physics, Baryon, Physics, Nuclear and High Energy Physics, Argus, Particle physics, Branching fraction, Branching (polymer chemistry), computer, computer.programming_language
Abstract

We have observed the previously unseen decay modes Λπ+π0, Σ0π+π0 and Σ0π−π+π+ of the charmed baryon Λc+, as well as Λc+→Σ0π+ observed previously by ARGUS. The branching ratios for these four decay modes relative to Λc+→pK−π+ are measured to be 0.73 ±0.09± 0.16, 0.36 ±0.09±0.10, 0.21±0.05±0.05, and 0.21±0.02 ±0.04, respectively. Using the recent CLEO measurement of the branching ratio for Λc+→pK− π+, these modes account for 6% of Λc+ decays.

Published
1994
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15. A measurement of

Author

R. Davis, F. Butler, D. Fujino, D. Perticone, Yurii V. Mukhin, E. Nordberg, R. Malchow, J. Masui, M. S. Witherell, B. Gittelman, M. Lambrecht, H. Lam, J. J. O'Neill, Y. Kwon, S. Chan, Yoram Rozen, S. Nakanishi, C. O'Grady, P. Rankin, J. Dominick, G. Zhu, P. S. Drell, I. P.J. Shipsey, H. Kagan, V. Savinov, S. Menary, K. K. Gan, Y. Skovpen, James P. Alexander, M. Thulasidas, R. Ehrlich, D. He, C. R. Ng, G. Masek, B. Ong, P. L. Wang, J. Mevissen, C. M. Daubenmier, Ryszard Stroynowski, H. P. Paar, M. M. Zoeller, N. Katayama, H.N. Nelson, G. Vasseur, M. Selen, J. Gronberg, D. Acosta, T. K. Nelson, J. Kandaswamy, C. R. Sun, A. J. Sadoff, J. Urheim, K. W. Edwards, J. M. Yelton, H.A. Cho, George R. Kalbfleisch, Z. Egyed, R. Ammar, P. Gaiderev, S. Roberts, M. Daoudi, D. F. Cowen, R. J. Morrison, D. R. Johnson, T. Skwarnicki, A. Ryd, A. Bean, I. J. Kim, Vivek Jain, D. Riley, R. Mountain, P. Baringer, B. Geiser, M. Battle, Pu Wang, K. Honscheid, R. D. Kass, G. S. Ludwig, H. Yamamoto, D. Sperka, P. Avery, G. C. Moneti, George D Gollin, P. M. Patel, G. Crawford, J. Snow, P. Skubic, A. J. Weinstein, R. Kennett, J. R. Patterson, J. Rodriguez, D. G. Cassel, S. Yang, S. Sanghera, F. Würthwein, D. Coppage, E. I. Shibata, M. Chadha, T. Bergfeld, S. W. Gray, D. S. Akerib, Jungil Lee, M. Goldberg, D. Payne, D. Peterson, B. Barish, K. Cho, J. Fast, A. Freyberger, K. Berkelman, J. G. Smith, Christopher G. White, B. K. Heltsley, T. Liu, J. K. Nelson, M. Lattery, N. Kwak, Sheldon Stone, E. R.F. Hyatt, S. Henderson, B. I. Eisenstein, M.A. Palmer, E. H. Thorndike, C. Qiao, M. Ogg, G. Wei, S. L. Jones, R. Fulton, T. Miao, R. Kutschke, Jeffrey Richman, J. J. Thaler, William T. Ford, D. B. MacFarlane, Kenneth Bloom, N. Hancock, K. Lingel, R. Stephens, Chunjie Wang, T. E. Browder, N. B. Mistry, N. Horwitz, D. Besson, M. Kelly, J.S. Miller, H. Severini, S. Ball, Dave Britton, R. L. McIlwain, G. Eigen, M. S. Alam, V. Shelkov, P.C. Kim, Richard Wilson, N. Copty, Yuichi Kubota, J. Ernst, R. Poling, S. Schrenk, B. Nemati, P. Zadorozhny, F. Muheim, D. Cinabro, D. N. Brown, S. Playfer, W. R. Ross, C. Bebek, I. Volobouev, D. H. Miller, X. Fu, M. Saulnier, M. Sung, M. Lohner, S. E. Csorna, K. Kinoshita, S. Patton, J. Bartelt, D.L. Kreinick, M. Modesitt, D. L. Hartill, S. Salman, C. D. Jones, Michael Wood, M. Sapper, M. Garcia-Sciveres, R. Wang, M. Procario, D. M. Coffman, M. Athanas, R. Balest, Marina Artuso, and H. Tajima

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, symbols.namesake, Branching fraction, Electron–positron annihilation, symbols, Feynman diagram, B meson, Elementary particle, Branching (polymer chemistry)
Abstract

Using the CLEO II detector at CESR, we have measured the ratio of branching fractions B (D + S → φl + ν) B (D + S → φπ + ) = 0.54 ± 0.05 ± 0.04 . We use this measurement to obtain a model dependent estimate of B (D + S → φπ + ) .

Published
1994
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16. Study of the decay

Author

Juliet Ritchie Patterson, M. Modesitt, D. Payne, H. A. Cho, R. Wang, J. Gronberg, N. Horwitz, D. L. Hartill, R. Poling, C. R. Ng, G. Wei, Michael S. Witherell, D. M. Coffman, F. Butler, R. Malchow, T. Skwarnicki, John Yelton, M. Lambrecht, D. B. MacFarlane, A. J. Weinstein, B. K. Heltsley, M. S. Alam, D. He, J. G. Smith, P. M. Patel, M. Chadha, Jungil Lee, P. C. Kim, S. Henderson, Ha Lam, J. Ernst, G. Vasseur, T. E. Browder, H. N. Nelson, J. K. Nelson, D. Riley, E. R.F. Hyatt, D. H. Miller, C. Qiao, R. Mountain, N. Copty, Shengfeng Yang, T. K. Nelson, M. Lattery, D. Cinabro, D. Fujino, T. Liu, Y. Kwon, J. Bartelt, B. C. Barish, J. J. O'Neill, P. Zadorozhny, F. Muheim, C. Bebek, X. Fu, J. Masui, M. Sapper, D. Z. Besson, K. Lingel, S. Nakanishi, E. H. Thorndike, A. P. Freyberger, George R. Kalbfleisch, B. Nemati, F. Morrow, Yurii V. Mukhin, D. Acosta, D. F. Cowen, Yuichi Kubota, Anders Ryd, M. Athanas, P. Skubic, Daniel Johnson, M. Daoudi, D. Coppage, Maurice Garcia-Sciveres, Vivek Jain, M. L. Kelly, J. P. Alexander, M.A. Palmer, Richard Wilson, J. Snow, D. L. Kreinick, S. W. Gray, K. K. Gan, D. N. Brown, D. G. Cassel, P. N. Wang, Y. Skovpen, S. Sanghera, G. C. Moneti, K. Cho, R. Stephens, J. S. Miller, C. M. Daubenmier, S. Playfer, S. E. Csorna, I. P.J. Shipsey, M. Ogg, M. Procario, N. B. Mistry, K. Honscheid, R. Davis, George D Gollin, S. Roberts, G. Zhu, Ryszard Stroynowski, Alice Bean, M. Battle, B. I. Eisenstein, C. D. Jones, E. I. Shibata, H. P. Paar, R. Fulton, P. Rankin, M. Thulasidas, N. Hancock, K. Kinoshita, R. Kutschke, J. Mevissen, N. Kwak, S. Salman, J. Kandaswamy, Chunjie Wang, Michael Wood, H. Yamamoto, Marina Artuso, M. Goldberg, J. Urheim, S. Menary, E. Nordberg, Jeffrey Richman, Dave Britton, Jon J Thaler, R. L. McIlwain, Kenneth Bloom, D. Peterson, G. S. Ludwig, M. Sung, V. Shelkov, S. Schrenk, N. Katayama, D. S. Akerib, W. R. Ross, G. Eigen, I. Volobouev, H. Tajima, D. Perticone, Sheldon Stone, V. Savinov, Paul Avery, Daniel Schmidt, G. Crawford, C. R. Sun, W. T. Ford, H. Kagan, R. D. Kass, R. Balest, R. J. Morrison, Mats A Selen, A. J. Sadoff, Yoram Rozen, F. Würthwein, B. Geiser, M. Lohner, R. Kennett, B. Gittelman, I. J. Kim, Philip Baringer, P. S. Drell, Jorge Luis Rodriguez, M. Saulnier, S. Ball, R. Ehrlich, S. L. Jones, J. Dominick, D. Patton, Karl Berkelman, M. M. Zoeller, B. Ong, J. Fast, Christopher G. White, T. Miao, P. L. Wang, R. Ammar, H. Severini, S. Chan, K. W. Edwards, Z. Egyed, C. O'Grady, D. Sperka, T. Bergfeld, and G. Masek

Subjects
Nuclear physics, Physics, Semileptonic decay, Nuclear and High Energy Physics, Particle physics, Life span, Electron–positron annihilation, media_common.quotation_subject, Charm (quantum number), Asymmetry, Measure (mathematics), media_common
Abstract

Using the CLEO II detector at CESR we observe 500 Λ l + pairs consistent with the semileptonic decay Λc+ → λ+ν We measure σ(e + e − → Λ + c X) · B(Λ + c → Λ l + ν l ) = 4.77±0.25±0.66 pb . Combining with the charm semileptonic width and the lifetime of the Λc we also obtain B(Λ+c → pK−π+). We find no evidence for Λ l + ν l final states in which there are additional Λ+c decay products. We measure the decay asymmetry parameter of Λ+c → Λe+νe to be αΛc = −0.89+0.17+0.09−0.11−0.05.

Published
1994
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17. Search for exclusive b → u transitions in hadronic decays of B mesons involving mesons

Author

D. Riley, J. Bartelt, B. Nemati, F. Morrow, M. S. Alam, P. N. Wang, Yuichi Kubota, H. Kagan, J. S. Miller, C. D. Jones, D. He, J. Gronberg, S. Nakanishi, C. M. Daubenmier, Richard Wilson, J. Ernst, R. Davis, J. Urheim, T. E. Browder, E. H. Thorndike, M. M. Zoeller, Ryszard Stroynowski, T. Liu, M. Lattery, N. Horwitz, M. Chadha, C. Bebek, M. Thulasidas, Maurice Garcia-Sciveres, G. Masek, Juliet Ritchie Patterson, R. J. Morrison, D. Coppage, D. H. Miller, P. L. Wang, M. Goldberg, A. P. Freyberger, J. P. Alexander, Mats A Selen, Y. Kwon, B. Geiser, T. Miao, A. J. Sadoff, M. L. Kelly, George R. Kalbfleisch, N. Kwak, D. Z. Besson, S. W. Gray, Jungil Lee, H. P. Paar, C. R. Sun, D. L. Kreinick, X. Fu, P. Rankin, D. Perticone, R. Fulton, M. Daoudi, W. T. Ford, J. Masui, V. Savinov, F. Butler, R. D. Kass, M. Modesitt, T. K. Nelson, R. Balest, W. R. Ross, P. Skubic, M. Lohner, Yoram Rozen, F. Würthwein, R. Malchow, John Yelton, S. Menary, M. Lambrecht, J. Snow, Z. Egyed, H. Yamamoto, R. L. McIlwain, Anders Ryd, M. Athanas, K. K. Gan, Y. Skovpen, R. Kennett, J. K. Nelson, Vivek Jain, D. Sperka, Chunjie Wang, B. Gittelman, J. J. Thaler, V. Shelkov, S. Schrenk, S. Yang, Philip Baringer, J. G. Smith, Sheldon Stone, T. Bergfeld, S. Roberts, R. Stephens, Paul Avery, S. Sanghera, P. Zadorozhny, F. Muheim, I. Volobouev, S. Ball, S. E. Csorna, R. Ammar, R. Mountain, E. Nordberg, Jeffrey Richman, Daniel Schmidt, I. J. Kim, Kenneth Bloom, M. Battle, G. C. Moneti, N. Hancock, M. Procario, H. Severini, S. Chan, B. Ong, M.A. Palmer, Ha Lam, D. Fujino, G. S. Ludwig, M. Sapper, D. N. Brown, K. Kinoshita, J. J. O'Neill, S. Playfer, N. Katayama, G. Wei, D. G. Cassel, G. Zhu, D. S. Akerib, E. I. Shibata, G. Vasseur, S. Salman, J. Fast, D. Payne, H. A. Cho, R. Wang, C. O'Grady, Michael Wood, Marina Artuso, G. Eigen, A. J. Weinstein, Yurii V. Mukhin, B. C. Barish, Christopher G. White, D. L. Hartill, H. N. Nelson, P. S. Drell, Karl Berkelman, T. Skwarnicki, R. Ehrlich, R. Poling, D. F. Cowen, Jorge Luis Rodriguez, G. Crawford, M. Saulnier, C. R. Ng, S. L. Jones, P. C. Kim, S. Henderson, M. Sung, Michael S. Witherell, I. P.J. Shipsey, J. Dominick, B. I. Eisenstein, D. M. Coffman, K. Lingel, Alice Bean, K. Cho, R. Kutschke, N. B. Mistry, B. K. Heltsley, H. Tajima, G. D. Gollin, J. Mevissen, N. Copty, J. Kandaswamy, D. Cinabro, S. Patton, D. Peterson, D. Acosta, Daniel Johnson, and K. Honscheid

Subjects
Physics, Nuclear physics, Hadronic decay, Nuclear and High Energy Physics, Particle physics, Meson, Hadron, Mass spectrum, Resonance, Elementary particle, B meson, Cornell Electron Storage Ring
Abstract

Using 1.16 × 106 B B events collected at the γ(4S) resonance by the CLEO Collaboration at the Cornell Electron Storage Ring (CESR), we have searched for decays of B mesons to exclusive two-body hadronic final states including a Ds+ or a D s ∗+ meson. We obtain the 90% confidence level upper limit β (B → D s (∗)+ π − + D s ∗ +p − + D s (∗)+ π 0 + D s (∗)+ η + D s (∗)+ p 0 + D s (∗)+ (ω) × β(D s + → φπ + ) −5 . We have also searched for the W-exchange decays, B 0 → D s (∗)− K (∗)+ .

Published
1993
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18. Measurements of exclusive semileptonic decays of D mesons

Author

Daniel Schmidt, Maurice Garcia-Sciveres, M. Sapper, R. J. Morrison, Mats A Selen, A. J. Sadoff, F. Butler, P. N. Wang, John Yelton, Ryszard Stroynowski, Y. Kwon, P. Rankin, D. H. Miller, S. Nakanishi, E. H. Thorndike, B. Nemati, Chunjie Wang, M. Daoudi, A. Bean, X. Fu, D. Riley, M. Procario, J. K. Nelson, D. Besson, R. Kennett, S. Yang, S. F. Schaffner, B. Gittelman, Harris Kagan, N. Kwak, Daniela Bortoletto, Ha Lam, Raymond Davis, D. Coppage, D. F. Cowen, J. J. O'Neill, N. Copty, I. J. Kim, J. Bartelt, J. P. Alexander, G. C. Moneti, K. Lingel, T. Skwarnicki, G. Vasseur, J. Urheim, N. Katayama, D. S. Akerib, D. M. Coffman, G. Eigen, S. Salman, D. G. Cassel, Michael Wood, R. Kass, R. Stephens, Yurii V. Mukhin, S. E. Csorna, P. C. Kim, S. Henderson, B. K. Heltsley, B. C. Barish, B. Geiser, Yuichi Kubota, M. Sung, H. Worden, M. Modesitt, P. L. Wang, E. I. Shibata, K. Kinoshita, R. Malchow, H. A. Cho, R. Wang, M. Lohner, I. P.J. Shipsey, K. K. Gan, M. M. Zoeller, D. Cinabro, D. N. Brown, D. L. Hartill, Karl Berkelman, K. Cho, N. B. Mistry, B. Ong, P. Wilson, J. G. Smith, S. Menary, R. L. McIlwain, P. S. Drell, S. Patton, R. Poling, M. Lambrecht, F. Shen, C. R. Ng, T. Miao, G. Crawford, C. D. Jones, Jorge Luis Rodriguez, M. Saulnier, M. S. Alam, V. Shelkov, S. Schrenk, Michael S. Witherell, M. Goldberg, Richard Wilson, D. Fujino, D. Acosta, A. J. Weinstein, Daniel Johnson, J. Fast, W. R. Ross, H. N. Nelson, D. He, R. Ammar, D. L. Kreinick, G. Masek, T. K. Nelson, Juliet Ritchie Patterson, H. Tajima, J. Gronberg, J. Masui, N. Horwitz, J. Ernst, T. E. Browder, J. Lee, M. L. Kelly, R. Fulton, I. Volobouev, M. Lattery, M. Chadha, C. R. Sun, H. Severini, S. Chan, S. W. Gray, M. Ogg, G. Zhu, S. Roberts, W. T. Ford, P. Zadorozhny, M. Battle, F. Muheim, Z. Egyed, H. P. Paar, R. Balest, K. Honscheid, Hubert Kroha, C. O'Grady, S. Playfer, R. Kutschke, D. Sperka, Vivek Jain, F. Morrow, Y. Skovpen, S. Sanghera, E. Nordberg, Jeffrey Richman, Anders Ryd, M. Athanas, J. Mevissen, G. S. Ludwig, N. Hancock, P. Skubic, Sheldon Stone, J. Kandaswamy, K. Sparks, Paul Avery, D. Peterson, Marina Artuso, C. White, H. Yamamoto, T. Liu, C. Bebek, A. P. Freyberger, George R. Kalbfleisch, J. Snow, C. M. Daubenmier, D. Perticone, V. Savinov, Yoram Rozen, F. Würthwein, Philip Baringer, S. Ball, J. S. Miller, M. Thulasidas, J. Whitmore, R. Ehrlich, S. L. Jones, and J. Dominick

Subjects
Semileptonic decay, Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Meson, Branching fraction, Electron–positron annihilation, D meson, Elementary particle, Cornell Electron Storage Ring
Abstract

Using a sample of integrated luminosity 1.68 fb−1 collected with the CLEO-II detector at the Cornell Electron Storage Ring, we measure the branching ratios for the dominant exclusive semileptonic decays D → K l ν and D → K ∗ l ν , using charged and neutral D mesons. We also make a precise measurement of the vector form factor for the decay D 0 → K − l + ν , using a sample of 2700 events.

Published
1993
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19. A reanalysis of B0-B̄0 mixing in e+e− annihilation at 29 GeV

Author

A. Petersen, J. M. Brom, A. Seiden, P. Voruganti, F. Butler, D. Hutchinson, Darien Wood, K. O'Shaughnessy, H. O. Ogren, J. A. Jaros, A. S. Schwarz, M. L. Perl, C. W. Peck, W. Koska, Kenneth G. Hayes, J. Boyer, K. Riles, G. Bonvicini, J. A. Kadyk, A. Breakstone, R. P. Thun, D.P. Coupal, Stephen Robert Wagner, E. Soderstrom, R. R. Larsen, Ryszard Stroynowski, D. Fujino, J. Hylef, M. S. Gold, G. H. Trilling, D. Nitz, Gerson Goldhaber, W. R. Innes, F. C. Porter, D. Y. Wu, P. Rankin, D. Amidei, R. Frey, B. D. Milliken, Timothy Barklow, E. Wicklund, P. C. Rowson, B. W. Leclaire, S. R. Klein, G. Hanson, A. J. Lankford, J. Haggerty, Jordan Nash, S. L. White, J. G. Smith, H. F.W. Sadrozinski, Alan Litke, Cords D, T. Schalk, W. B. Schmidke, S. Weisz, B. B. Brabson, Michael Levi, R. J. Hollebeek, F. Calviño, P. Weber, Patricia R. Burchat, D. E. Dorfan, M. Petradza, R. A. Ong, H. Veltman, B. A. Barnett, D. P. Stoker, W. Kozanecki, H. Schellman, G. S. Abrams, M. Jaffre, F. A. Harris, K. K. Gan, E. Fernandez, C.M. Hawkes, R. Tschirhart, Sherwood Parker, G. J. Feldman, George Gidal, R. C. Field, I. Bartelt, Fordham C, K.C. Moffeit, D. Herrup, A. J. Weinstein, T. Glanzman, J. A. J. Matthews, V. Luth, A. Snyder, P.S. Drell, W. T. Ford, L. Gladney, DeStaebler Hc, N. S. Lockyer, Mark E. Nelson, I. Juricic, R. J. Cence, B. C. Barish, D. Karlen, L. Müller, D. I. Meyer, J. M. Yelton, A. R. Baden, T. Himel, J. Kent, P. D. Sheldon, D. R. Rust, Burton Richter, D. Blockus, J. Dorfan, A. M. Boyarski, A. J. Weir, R. Van Kooten, James P. Alexander, A. Green, D. L. Burke, T. Schaad, M. Alvarez, Grosse-Wiesmann P, R. Harr, J. W. Chapman, Adolphsen Ce, C. A. Heusch, and F. Bulos

Subjects
Quark, Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, High Energy Physics::Phenomenology, Hadron, Astrophysics::Cosmology and Extragalactic Astrophysics, Measure (mathematics), Nuclear physics, High Energy Physics::Experiment, Mixing (physics), Storage ring, Lepton
Abstract

Data taken by the Mark II detector at the PEP storage ring was used to measure the rate of dilepton production in multihadronic events produced by e + e − annihilation at √ s =29 GeV. We determine the probability that a hadron initially containing a b (b) quark decays to a positive (negative) lepton to be 0.17 −0.08 +0.15 , with 90% confidence level limits of 0.06 and 0.38.

Published
1990
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20. The Mark II detector for the SLC

Author

M. Kuhlen, F. Bulos, S. R. Klein, B. A. Barnett, C. Boswell, Z. Li, B. D. Milliken, M. Swartz, P. D. Dauncey, B. B. Brabson, A. Snyder, J. Dorfan, P. Voruganti, A. Petersen, Barry C. Barish, J. A. J. Matthews, R. Pitthan, R. Van Kooten, C. K. Jung, I. Juricic, M. Jaffre, G. H. Trilling, K. Braune, Mark E. Nelson, M. Chmeissani, R. Harr, G. S. Abrams, R. R. Larsen, A. M. Boyarski, R. P. Thun, Ryszard Stroynowski, F. Perrier, Jordan Nash, D. Fujino, A. Seiden, J Perl, J. Haggerty, Giorgio Gratta, Ballam J, F. Butler, B.A. Schumm, J. A. Jaros, J. G. Smith, Averill D, P. Rankin, L. Müller, S. Weisz, M. Yurko, J. W. Chapman, Adolphsen Ce, G. Lynch, S. O. Holmgren, A. Green, A. S. Schwarz, C. Zaccardelli, Hartmut Sadrozinski, Sherwood Parker, Clemens A. Heusch, M. L. Perl, C. von Zanthier, J. M. Brom, Walter R. Innes, J. Boyer, M. Hoenk, D. P. Stoker, King M, A. Weigend, K. Riles, Carl W. Akerlof, William T. Ford, Kenneth G. Hayes, Jacobsen Rg, Field Rc, Fordham C, W. Koska, A. J. Weir, Hinshaw Da, James P. Alexander, D. Hutchinson, C. Gatto, W. N. Murray, L. Labarga, F. A. Harris, D.P. Coupal, R. Tschirhart, Timothy Barklow, C.T. Munger, Stephen Robert Wagner, K. C. Moffeit, Alan Litke, Hearty C, M. Woods, J.F. Kral, D. L. Burke, Cords D, Michael Levi, L.A. Kowalski, Darien Wood, S. Vejcik, Drewer Dc, C.M. Hawkes, D.S. Koetke, R. Frey, J. A. McKenna, T. Glanzman, K. O'Shaughnessy, C. W. Peck, M. Alvarez, Hong Sj, D. Nitz, D. Y. Wu, S. Komamiya, Grosse-Wiesmann P, D. Blockus, J. Hylen, Harral B, E. Wicklund, A. J. Lankford, P.S. Drell, A. Koide, P. Weber, John E. Bartelt, Patricia R. Burchat, DeStaebler Hc, W. De Boer, G. Wormser, A. Breakstone, Frank C. Porter, W. B. Schmidke, S. L. White, E. Fernandez, Gero E, L. Koepke, M. Turala, G. J. Feldman, Robert E. Wright, K. K. Gan, D. Herrup, R. C. Wolf, D. E. Dorfan, H. O. Ogren, G. Bonvicini, Richard E. Taylor, George Gidal, F. Rouse, Fernandes D, A. R. Baden, Jeffrey Richman, A. J. Weinstein, M. Petradza, R. A. Ong, G. Hanson, F. Calviño, H. Veltman, W. Kozanecki, V. Luth, X. Gong, J.J. Gomez Cadenas, T. Himel, J. A. Kadyk, R. J. Cence, M. W. Schaad, E. Soderstrom, Thomas S. Mattison, D. Karlen, J. Kent, J. Fay, D. R. Rust, S. Watson, and Gerson Goldhaber

Subjects
Physics, Nuclear and High Energy Physics, Luminosity (scattering theory), Physics::Instrumentation and Detectors, Detector, law.invention, Nuclear physics, Data acquisition, Electromagnetic calorimeter, law, Electromagnetic coil, Measuring instrument, Physics::Accelerator Physics, High Energy Physics::Experiment, Collider, Instrumentation, Storage ring
Abstract

The Mark II detector has been upgraded in preparation for its role as the first detector to take data at the Stanford Linear Collider. The new detector components include the central drift chamber, the time-of-flight system, the coil, the endcap electromagnetic calorimeters and the beam energy and luminosity measuring devices. There have also been improvements in detector hermeticity. All of the major components were installed for a test run at the PEP storage ring (√s = 29 GeV) in 1985. This paper describes the upgraded detector, including its trigger and data acquisition systems, and gives performance figures for its components. Future improvements are also discussed.

Published
1989
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21. Search for B-decay to Higgs bosons for Higgs boson masses between 50 and 210 MeV/c2

Author

Abraham Seiden, George H. Trilling, D. Nitz, D. Y. Wu, B. D. Milliken, A. S. Schwarz, Gerson Goldhaber, J. Dorfan, P. Voruganti, J. Hylen, R. J. Hollebeek, J. M. Brom, E. Wicklund, A. J. Lankford, Clemens A. Heusch, K. K. Gan, D. I. Meyer, N. S. Lockyer, R. Van Kooten, D. Herrup, A. Petersen, P. Weber, M. Jaffre, S. L. White, Patricia R. Burchat, J. A. Kadyk, A. M. Boyarski, D. Hutchinson, J. A. J. Matthews, E. Soderstrom, F. Butler, Jordan Nash, G. J. Feldman, S. R. Klein, M. S. Gold, S. Weisz, P. Rankin, F. Calviño, B. B. Brabson, K. O'Shaughnessy, C. W. Peck, W. N. Murray, F. Bulos, H. Veltman, A. Breakstone, H. O. Ogren, Grosse-Wiesmann P, Darien Wood, K. Riles, W. Kozanecki, Fordham C, George Gidal, Carl W. Akerlof, Burton Richter, G. Bonvicini, D. Blockus, R. Frey, V. Luth, M. Petradza, R. A. Ong, W. Koska, Frank C. Porter, W. B. Schmidke, J. R. Smith, D. P. Stoker, G. Hanson, Cence Rj, D. L. Burke, A.J. Weinstein, T. Himel, A. J. Weir, D. Amidel, T. Schaad, M. Alvarez, Timothy Barklow, R. Harr, Alan Litke, Adolphsen Ce, J. Haggerty, G. S. Abrams, Cords D, Michael Levi, J. M. Yelton, H. Schellman, C.M. Hawkes, A. R. Baden, D. E. Dorfan, L. Müller, J. W. Chapman, F.A. Harris, R. R. Larsen, Ryszard Stroynowski, D. Fujino, H. F.W. Sadrozinski, T. Schalk, J.P. Alexander, R. Tschirhart, William T. Ford, P. C. Rowson, Glanzman T, J. Boyer, B. W. Leclaire, Sherwood Parker, A. Snyder, Mark E. Nelson, B. A. Barnett, L. Gladney, B. C. Barish, I. Juricic, D. R. Rust, R. P. Thun, Bartelt J, J. Kent, Field Rc, P. D. Sheldon, P.S. Drell, D. Karlen, DeStaebler Hc, J. A. Jaros, M. L. Perl, Walter R. Innes, Kenneth G. Hayes, E. Fernandez, D.P. Coupal, Stephen Robert Wagner, and K. C. Moffeit

Subjects
Physics, Nuclear and High Energy Physics, Gauge boson, Particle physics, High Energy Physics::Phenomenology, Higgs sector, Vector boson, Standard Model, Nuclear physics, symbols.namesake, Higgs field, symbols, Higgs boson, High Energy Physics::Experiment, Higgs mechanism, Boson
Abstract

We use data from the Mark II experiment at PEP to search for the process B→h 0 X for m h 0 between 50 and 210 MeV/ c 2 . No evidence for the Higgs boson is seen in this mass range. The limit obtained rules out the standard Higgs boson for masses between 70 and 210 MeV/ c 2 and significantly constrains extensions of the Higgs sector.

Published
1989
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22. The Mark-II vertex drift chamber

Author

J.P. Alexander, Hinshaw Da, T. Ohama, William T. Ford, R. Harr, P. Weber, D. Hutchinson, B.A. Schumm, J. A. Jaros, George H. Trilling, Robert E. Wright, N. Hower, D. Fujino, P.S. Drell, R. Baggs, M. L. Perl, L.A. Kowalski, C. Hoard, Kenneth G. Hayes, Jeffrey Richman, Stephen Robert Wagner, D.S. Koetke, R. Fuzesy, J. R. Smith, J.F. Kral, and C.T. Munger

Subjects
Physics, Nuclear and High Energy Physics, Jet (fluid), Wire chamber, Physics::Instrumentation and Detectors, business.industry, Resolution (electron density), Particle detector, Linear particle accelerator, Nuclear physics, Optics, Vertex (curve), Measuring instrument, business, Instrumentation, Image resolution
Abstract

We have completed constructing and begun operating the Mark-II drift chamber vertex detector. The chamber, based on a modified jet cell design, achieves 30 μm spatial resolution and

Published
1989
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