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Start Over Author "Cooper, J." Journal physical review letters Publisher american physical society
60 results on '"Cooper, J."'

1. Chiral Doublet Structures in Odd-Odd N = 75 Isotones: Chiral Vibrations

Author

Starosta, K., Koike, T., Chiara, C. J., Fossan, D. B., LaFosse, D. R., Hecht, A. A., Beausang, C. W., Caprio, M. A., Cooper, J. R., Krücken, R., Novak, J. R., Zamfir, N. V., Zyromski, K. E., Hartley, D. J., Balabanski, D. L., Zhang, Jing-ye, Frauendorf, S., and Dimitrov, V. I.

Published
2001

2. Robust Quantum Enhanced Phase Estimation in a Multimode Interferometer.

Author

Cooper, J. J., Hallwood, D. W., Dunningham, J. A., and Brand, J.

Subjects
*QUANTUM theory, *INTERFEROMETERS, *ATOMS, *ROTATIONAL motion, *FERMIONS, *INTERACTING boson models, *ESTIMATION theory
Abstract

By exploiting the correlation properties of ultracold atoms in a multimode interferometer, we show how quantum enhanced measurement precision can be achieved with strong robustness to particle loss. While the potential for enhanced measurement precision is limited for even moderate loss in two-mode schemes, multimode schemes can be more robust. A ring interferometer for sensing rotational motion with noninteracting fermionic atoms can realize an uncertainty scaling of 1 /(N√&eegr;) for N particles with a fraction &eegr; remaining after loss, which undercuts the shot-noise limit of two-mode interferometers. A second scheme with strongly interacting bosons achieves a comparable measurement precision and improved readout. [ABSTRACT FROM AUTHOR]

Published
2012
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3. Supercooling of Atoms in an Optical Resonator.

Author

Minghui Xu, Jäger, Simon B., Schütz, S., Cooper, J., Morigi, Giovanna, and Holland, M. J.

Subjects
*OPTICAL resonators, *ATOMS, *SUPERCOOLING
Abstract

We investigate laser cooling of an ensemble of atoms in an optical cavity. We demonstrate that when atomic dipoles are synchronized in the regime of steady-state superradiance, the motion of the atoms may be subject to a giant frictional force leading to potentially very low temperatures. The ultimate temperature limits are determined by a modified atomic linewidth, which can be orders of magnitude smaller than the cavity linewidth. The cooling rate is enhanced by the superradiant emission into the cavity mode allowing reasonable cooling rates even for dipolar transitions with ultranarrow linewidth. [ABSTRACT FROM AUTHOR]

Published
2016
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4. First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA.

Author

Acero MA, Adamson P, Aliaga L, Alion T, Allakhverdian V, Altakarli S, Anfimov N, Antoshkin A, Aurisano A, Back A, Backhouse C, Baird M, Balashov N, Baldi P, Bambah BA, Bashar S, Bays K, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blackburn T, Blair J, Booth AC, Bour P, Bromberg C, Buchanan N, Butkevich A, Calvez S, Campbell M, Carroll TJ, Catano-Mur E, Cedeno A, Childress S, Choudhary BC, Chowdhury B, Coan TE, Colo M, Cooper J, Corwin L, Cremonesi L, Davies GS, Derwent PF, Ding P, Djurcic Z, Doyle D, Dukes EC, Duyang H, Edayath S, Ehrlich R, Elkins M, Feldman GJ, Filip P, Flanagan W, Frank MJ, Gallagher HR, Gandrajula R, Gao F, Germani S, Giri A, Gomes RA, Goodman MC, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Hewes J, Himmel A, Holin A, Howard B, Huang J, Hylen J, Jediny F, Johnson C, Judah M, Kakorin I, Kalra D, Kaplan DM, Keloth R, Klimov O, Koerner LW, Kolupaeva L, Kotelnikov S, Kourbanis I, Kreymer A, Kulenberg C, Kumar A, Kuruppu CD, Kus V, Lackey T, Lang K, Lin S, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann WA, Marshak ML, Martinez-Casales M, Matveev V, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mislivec A, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Mulder K, Murphy R, Musser J, Naples D, Nayak N, Nelson JK, Nichol R, Nikseresht G, Niner E, Norman A, Nosek T, Olshevskiy A, Olson T, Paley J, Patterson RB, Pawloski G, Pershey D, Petrova O, Petti R, Phan DD, Plunkett RK, Potukuchi B, Principato C, Psihas F, Radovic A, Raj V, Rameika RA, Rebel B, Rojas P, Ryabov V, Samoylov O, Sanchez MC, Sánchez Falero S, Seong IS, Shanahan P, Sheshukov A, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Sutton A, Talaga RL, Tapia Oregui B, Tas P, Thayyullathil RB, Thomas J, Tiras E, Torbunov D, Tripathi J, Tsaris A, Torun Y, Urheim J, Vahle P, Vasel J, Vinton L, Vokac P, Vrba T, Wallbank M, Wang B, Warburton TK, Wetstein M, While M, Whittington D, Wojcicki SG, Wolcott J, Yadav N, Yallappa Dombara A, Yonehara K, Yu S, Zadorozhnyy S, Zalesak J, Zamorano B, and Zwaska R

Abstract

The NOvA experiment has seen a 4.4σ signal of ν[over ¯]_{e} appearance in a 2 GeV ν[over ¯]_{μ} beam at a distance of 810 km. Using 12.33×10^{20} protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 ν[over ¯]_{μ}→ν[over ¯]_{e} candidates with a background of 10.3 and 102 ν[over ¯]_{μ}→ν[over ¯]_{μ} candidates. This new antineutrino data are combined with neutrino data to measure the parameters |Δm_{32}^{2}|=2.48_{-0.06}^{+0.11}×10^{-3}  eV^{2}/c^{4} and sin^{2}θ_{23} in the ranges from (0.53-0.60) and (0.45-0.48) in the normal neutrino mass hierarchy. The data exclude most values near δ_{CP}=π/2 for the inverted mass hierarchy by more than 3σ and favor the normal neutrino mass hierarchy by 1.9σ and θ_{23} values in the upper octant by 1.6σ.

Published
2019
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5. Dynamical Phase Transitions to Optomechanical Superradiance.

Author

Jäger SB, Cooper J, Holland MJ, and Morigi G

Abstract

We theoretically analyze superradiant emission of light from an ultracold gas of bosonic atoms confined in a bad cavity. A metastable dipolar transition of the atoms couples to the cavity field and is incoherently pumped, and the mechanical effects of cavity-atom interactions tend to order the atoms in the periodic cavity potential. By means of a mean-field model we determine the conditions on the cavity parameters and pump rate that lead to the buildup of a stable macroscopic dipole emitting coherent light. We show that this occurs when the superradiant decay rate and the pump rate exceed threshold values of the order of the photon recoil energy. Above these thresholds superradiant emission is accompanied by the formation of stable matter-wave gratings that diffract the emitted photons. Outside of this regime, instead, the optomechanical coupling can give rise to dephasing or chaos, for which the emitted light is respectively incoherent or chaotic. These behaviors exhibit the features of a dynamical phase transitions and emerge from the interplay between global optomechanical interactions, quantum fluctuations, and noise.

Published
2019
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6. Constraints on Oscillation Parameters from ν_{e} Appearance and ν_{μ} Disappearance in NOvA.

Author

Adamson P, Aliaga L, Ambrose D, Anfimov N, Antoshkin A, Arrieta-Diaz E, Augsten K, Aurisano A, Backhouse C, Baird M, Bambah BA, Bays K, Behera B, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blackburn T, Bolshakova A, Bromberg C, Brown J, Brunetti G, Buchanan N, Butkevich A, Bychkov V, Campbell M, Catano-Mur E, Childress S, Choudhary BC, Chowdhury B, Coan TE, Coelho JAB, Colo M, Cooper J, Corwin L, Cremonesi L, Cronin-Hennessy D, Davies GS, Davies JP, Derwent PF, Dharmapalan R, Ding P, Djurcic Z, Dukes EC, Duyang H, Edayath S, Ehrlich R, Feldman GJ, Frank MJ, Gabrielyan M, Gallagher HR, Germani S, Ghosh T, Giri A, Gomes RA, Goodman MC, Grichine V, Group R, Grover D, Guo B, Habig A, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Himmel A, Holin A, Hylen J, Jediny F, Judah M, Kafka GK, Kalra D, Kasahara SMS, Kasetti S, Keloth R, Kolupaeva L, Kotelnikov S, Kourbanis I, Kreymer A, Kumar A, Kurbanov S, Lang K, Lee WM, Lin S, Liu J, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann WA, Marshak ML, Matera K, Matveev V, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Murphy R, Musser J, Nelson JK, Nichol R, Niner E, Norman A, Nosek T, Oksuzian Y, Olshevskiy A, Olson T, Paley J, Pandey P, Patterson RB, Pawloski G, Pershey D, Petrova O, Petti R, Phan-Budd S, Plunkett RK, Poling R, Potukuchi B, Principato C, Psihas F, Radovic A, Rameika RA, Rebel B, Reed B, Rocco D, Rojas P, Ryabov V, Sachdev K, Sail P, Samoylov O, Sanchez MC, Schroeter R, Sepulveda-Quiroz J, Shanahan P, Sheshukov A, Singh J, Singh J, Singh P, Singh V, Smolik J, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Talaga RL, Tamsett MC, Tas P, Thayyullathil RB, Thomas J, Tian X, Tognini SC, Tripathi J, Tsaris A, Urheim J, Vahle P, Vasel J, Vinton L, Vold A, Vrba T, Wang B, Wetstein M, Whittington D, Wojcicki SG, Wolcott J, Yadav N, Yang S, Zalesak J, Zamorano B, and Zwaska R

Abstract

Results are reported from an improved measurement of ν_{μ}→ν_{e} transitions by the NOvA experiment. Using an exposure equivalent to 6.05×10^{20} protons on target, 33 ν_{e} candidates are observed with a background of 8.2±0.8 (syst.). Combined with the latest NOvA ν_{μ} disappearance data and external constraints from reactor experiments on sin^{2}2θ_{13}, the hypothesis of inverted mass hierarchy with θ_{23} in the lower octant is disfavored at greater than 93% C.L. for all values of δ_{CP}.

Published
2017
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7. Measurement of the Neutrino Mixing Angle θ_{23} in NOvA.

Author

Adamson P, Aliaga L, Ambrose D, Anfimov N, Antoshkin A, Arrieta-Diaz E, Augsten K, Aurisano A, Backhouse C, Baird M, Bambah BA, Bays K, Behera B, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blackburn T, Bolshakova A, Bromberg C, Brown J, Brunetti G, Buchanan N, Butkevich A, Bychkov V, Campbell M, Catano-Mur E, Childress S, Choudhary BC, Chowdhury B, Coan TE, Coelho JAB, Colo M, Cooper J, Corwin L, Cremonesi L, Cronin-Hennessy D, Davies GS, Davies JP, Derwent PF, Desai S, Dharmapalan R, Ding P, Djurcic Z, Dukes EC, Duyang H, Edayath S, Ehrlich R, Feldman GJ, Frank MJ, Gabrielyan M, Gallagher HR, Germani S, Ghosh T, Giri A, Gomes RA, Goodman MC, Grichine V, Group R, Grover D, Guo B, Habig A, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Himmel A, Holin A, Hylen J, Jediny F, Judah M, Kafka GK, Kalra D, Kasahara SMS, Kasetti S, Keloth R, Kolupaeva L, Kotelnikov S, Kourbanis I, Kreymer A, Kumar A, Kurbanov S, Lang K, Lee WM, Lin S, Liu J, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann WA, Marshak ML, Matera K, Matveev V, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Murphy R, Musser J, Nelson JK, Nichol R, Niner E, Norman A, Nosek T, Oksuzian Y, Olshevskiy A, Olson T, Paley J, Pandey P, Patterson RB, Pawloski G, Pershey D, Petrova O, Petti R, Phan-Budd S, Plunkett RK, Poling R, Potukuchi B, Principato C, Psihas F, Radovic A, Rameika RA, Rebel B, Reed B, Rocco D, Rojas P, Ryabov V, Sachdev K, Sail P, Samoylov O, Sanchez MC, Schroeter R, Sepulveda-Quiroz J, Shanahan P, Sheshukov A, Singh J, Singh J, Singh P, Singh V, Smolik J, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Talaga RL, Tamsett MC, Tas P, Thayyullathil RB, Thomas J, Tian X, Tognini SC, Tripathi J, Tsaris A, Urheim J, Vahle P, Vasel J, Vinton L, Vold A, Vrba T, Wang B, Wetstein M, Whittington D, Wojcicki SG, Wolcott J, Yadav N, Yang S, Zalesak J, Zamorano B, and Zwaska R

Abstract

This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of 6.05×10^{20} protons on target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal θ_{23} mixing (θ_{23}=π/4). Assuming the normal mass hierarchy, we find Δm_{32}^{2}=(2.67±0.11)×10^{-3}  eV^{2} and sin^{2}θ_{23} at the two statistically degenerate values 0.404_{-0.022}^{+0.030} and 0.624_{-0.030}^{+0.022}, both at the 68% confidence level. Our data disfavor the maximal mixing scenario with 2.6σ significance.

Published
2017
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8. Supercooling of Atoms in an Optical Resonator.

Author

Xu M, Jäger SB, Schütz S, Cooper J, Morigi G, and Holland MJ

Abstract

We investigate laser cooling of an ensemble of atoms in an optical cavity. We demonstrate that when atomic dipoles are synchronized in the regime of steady-state superradiance, the motion of the atoms may be subject to a giant frictional force leading to potentially very low temperatures. The ultimate temperature limits are determined by a modified atomic linewidth, which can be orders of magnitude smaller than the cavity linewidth. The cooling rate is enhanced by the superradiant emission into the cavity mode allowing reasonable cooling rates even for dipolar transitions with ultranarrow linewidth.

Published
2016
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9. First Measurement of Electron Neutrino Appearance in NOvA.

Author

Adamson P, Ader C, Andrews M, Anfimov N, Anghel I, Arms K, Arrieta-Diaz E, Aurisano A, Ayres DS, Backhouse C, Baird M, Bambah BA, Bays K, Bernstein R, Betancourt M, Bhatnagar V, Bhuyan B, Bian J, Biery K, Blackburn T, Bocean V, Bogert D, Bolshakova A, Bowden M, Bower C, Broemmelsiek D, Bromberg C, Brunetti G, Bu X, Butkevich A, Capista D, Catano-Mur E, Chase TR, Childress S, Choudhary BC, Chowdhury B, Coan TE, Coelho JA, Colo M, Cooper J, Corwin L, Cronin-Hennessy D, Cunningham A, Davies GS, Davies JP, Del Tutto M, Derwent PF, Deepthi KN, Demuth D, Desai S, Deuerling G, Devan A, Dey J, Dharmapalan R, Ding P, Dixon S, Djurcic Z, Dukes EC, Duyang H, Ehrlich R, Feldman GJ, Felt N, Fenyves EJ, Flumerfelt E, Foulkes S, Frank MJ, Freeman W, Gabrielyan M, Gallagher HR, Gebhard M, Ghosh T, Gilbert W, Giri A, Goadhouse S, Gomes RA, Goodenough L, Goodman MC, Grichine V, Grossman N, Group R, Grudzinski J, Guarino V, Guo B, Habig A, Handler T, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Howcroft C, Huang J, Huang X, Hylen J, Ishitsuka M, Jediny F, Jensen C, Jensen D, Johnson C, Jostlein H, Kafka GK, Kamyshkov Y, Kasahara SM, Kasetti S, Kephart K, Koizumi G, Kotelnikov S, Kourbanis I, Krahn Z, Kravtsov V, Kreymer A, Kulenberg Ch, Kumar A, Kutnink T, Kwarciancy R, Kwong J, Lang K, Lee A, Lee WM, Lee K, Lein S, Liu J, Lokajicek M, Lozier J, Lu Q, Lucas P, Luchuk S, Lukens P, Lukhanin G, Magill S, Maan K, Mann WA, Marshak ML, Martens M, Martincik J, Mason P, Matera K, Mathis M, Matveev V, Mayer N, McCluskey E, Mehdiyev R, Merritt H, Messier MD, Meyer H, Miao T, Michael D, Mikheyev SP, Miller WH, Mishra SR, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Musser J, Newman HB, Nelson JK, Niner E, Norman A, Nowak J, Oksuzian Y, Olshevskiy A, Oliver J, Olson T, Paley J, Pandey P, Para A, Patterson RB, Pawloski G, Pearson N, Perevalov D, Pershey D, Peterson E, Petti R, Phan-Budd S, Piccoli L, Pla-Dalmau A, Plunkett RK, Poling R, Potukuchi B, Psihas F, Pushka D, Qiu X, Raddatz N, Radovic A, Rameika RA, Ray R, Rebel B, Rechenmacher R, Reed B, Reilly R, Rocco D, Rodkin D, Ruddick K, Rusack R, Ryabov V, Sachdev K, Sahijpal S, Sahoo H, Samoylov O, Sanchez MC, Saoulidou N, Schlabach P, Schneps J, Schroeter R, Sepulveda-Quiroz J, Shanahan P, Sherwood B, Sheshukov A, Singh J, Singh V, Smith A, Smith D, Smolik J, Solomey N, Sotnikov A, Sousa A, Soustruznik K, Stenkin Y, Strait M, Suter L, Talaga RL, Tamsett MC, Tariq S, Tas P, Tesarek RJ, Thayyullathil RB, Thomsen K, Tian X, Tognini SC, Toner R, Trevor J, Tzanakos G, Urheim J, Vahle P, Valerio L, Vinton L, Vrba T, Waldron AV, Wang B, Wang Z, Weber A, Wehmann A, Whittington D, Wilcer N, Wildberger R, Wildman D, Williams K, Wojcicki SG, Wood K, Xiao M, Xin T, Yadav N, Yang S, Zadorozhnyy S, Zalesak J, Zamorano B, Zhao A, Zirnstein J, and Zwaska R

Abstract

We report results from the first search for ν&#95;{μ}→ν&#95;{e} transitions by the NOvA experiment. In an exposure equivalent to 2.74×10^{20} protons on target in the upgraded NuMI beam at Fermilab, we observe 6 events in the Far Detector, compared to a background expectation of 0.99±0.11(syst) events based on the Near Detector measurement. A secondary analysis observes 11 events with a background of 1.07±0.14(syst). The 3.3σ excess of events observed in the primary analysis disfavors 0.1π<δ&#95;{CP}<0.5π in the inverted mass hierarchy at the 90% C.L.

Published
2016
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10. Observation of motion-dependent nonlinear dispersion with narrow-linewidth atoms in an optical cavity.

Author

Westergaard PG, Christensen BT, Tieri D, Matin R, Cooper J, Holland M, Ye J, and Thomsen JW

Abstract

As an alternative to state-of-the-art laser frequency stabilization using ultrastable cavities, it has been proposed to exploit the nonlinear effects from coupling of atoms with a narrow transition to an optical cavity. Here, we have constructed such a system and observed nonlinear phase shifts of a narrow optical line by a strong coupling of a sample of strontium-88 atoms to an optical cavity. The sample temperature of a few mK provides a domain where the Doppler energy scale is several orders of magnitude larger than the narrow linewidth of the optical transition. This makes the system sensitive to velocity dependent multiphoton scattering events (Dopplerons) that affect the cavity field transmission and phase. By varying the number of atoms and the intracavity power, we systematically study this nonlinear phase signature which displays roughly the same features as for much lower temperature samples. This demonstration in a relatively simple system opens new possibilities for alternative routes to laser stabilization at the sub-100 mHz level and superradiant laser sources involving narrow-line atoms. The understanding of relevant motional effects obtained here has direct implications for other atomic clocks when used in relation to ultranarrow clock transitions.

Published
2015
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11. Atomtronic circuits of diodes and transistors.

Author

Pepino RA, Cooper J, Anderson DZ, and Holland MJ

Abstract

We illustrate that open quantum systems composed of neutral, ultracold atoms in one-dimensional optical lattices can exhibit behavior analogous to semiconductor electronic circuits. A correspondence is demonstrated for bosonic atoms, and the experimental requirements to realize these devices are established. The analysis follows from a derivation of a quantum master equation for this general class of open quantum systems.

Published
2009
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12. Nernst effect measurements of epitaxial Y0.95Ca0.05Ba2(Cu1-xZnx)3Oy and Y0.9Ca0.1Ba2Cu3Oy superconducting films.

Author

Kokanović I, Cooper JR, and Matusiak M

Abstract

We report Nernst effect data for crystalline films of Y0.95Ca0.05Ba2(Cu1-xZnx)3Oy (with x=0, 0.02, and 0.04) and Y0.9Ca0.1Ba2Cu3Oy grown by pulsed laser deposition. We show that our own results and published data for LSCO are consistent with the theory of Gaussian superconducting fluctuations. We also show that Zn doping increases the Nernst coefficient simply because it reduces the in-plane conductivity.

Published
2009
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13. Quantum oscillations in the underdoped cuprate YBa2Cu4O8.

Author

Yelland EA, Singleton J, Mielke CH, Harrison N, Balakirev FF, Dabrowski B, and Cooper JR

Abstract

We report the observation of quantum oscillations in the underdoped cuprate superconductor YBa2Cu4O8 using a tunnel-diode oscillator technique in pulsed magnetic fields up to 85 T. There is a clear signal, periodic in inverse field, with frequency 660+/-15 T and possible evidence for the presence of two components of slightly different frequency. The quasiparticle mass is m(*)=3.0+/-0.3m(e). In conjunction with the results of Doiron-Leyraud et al. for YBa2Cu3O6.5, the present measurements suggest that Fermi surface pockets are a general feature of underdoped copper oxide planes and provide information about the doping dependence of the Fermi surface.

Published
2008
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14. Multipoint holographic optical velocimetry in microfluidic systems.

Author

Di Leonardo R, Leach J, Mushfique H, Cooper JM, Ruocco G, and Padgett MJ

Abstract

We show how holographic optical trapping can be used for the multipoint measurement of fluid flow in microscopic geometries. An array of microprobes can be simultaneously trapped and used to map out the fluid flow in a microfluidic device. The optical traps are alternately turned on and off such that the probe particles are displaced by the flow of the surrounding fluid and then retrapped. The particles' displacements are monitored by digital video microscopy and directly converted into velocity field values. This technique enables the measurement of a two-dimensional flow field at points arbitrarily distributed in a three-dimensional volume. The validity of the technique is demonstrated for the case of the flow around a spinning sphere and the flow at the outlet of a microchannel.

Published
2006
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15. Isotope effect in the superfluid density of high-temperature superconducting cuprates: stripes, pseudogap, and impurities.

Author

Tallon JL, Islam RS, Storey J, Williams GV, and Cooper JR

Abstract

Underdoped cuprates exhibit a normal-state pseudogap, and their spins and doped carriers tend to spatially separate into 1D or 2D stripes. Some view these as central to superconductivity and others as peripheral and merely competing. Using La(2-x)Sr(x)Cu(1-y)Zn(y)O4 we show that an oxygen isotope effect in Tc and in the superfluid density can be used to distinguish between the roles of stripes and pseudogap and also to detect the presence of impurity scattering. We conclude that stripes and pseudogap are distinct, and both compete and coexist with superconductivity.

Published
2005
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16. Determination of the Fermi surface of MgB2 by the de Haas-van Alphen effect.

Author

Carrington A, Meeson PJ, Cooper JR, Balicas L, Hussey NE, Yelland EA, Lee S, Yamamoto A, Tajima S, Kazakov SM, and Karpinski J

Abstract

We report measurements of the de Haas-van Alphen (dHvA) effect for single crystals of MgB2, in magnetic fields up to 32 T. In contrast to our earlier work, dHvA orbits from all four sheets of the Fermi surface were detected. Our results are in good overall agreement with calculations of the electronic structure and the electron-phonon mass enhancements of the various orbits, but there are some small quantitative discrepancies. In particular, systematic differences in the relative volumes of the Fermi-surface sheets and the magnitudes of the electron-phonon coupling constants could be large enough to affect detailed calculations of T(c) and other superconducting properties.

Published
2003
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17. B(E2) values in 150Nd and the critical point symmetry X(5).

Author

Krücken R, Albanna B, Bialik C, Casten RF, Cooper JR, Dewald A, Zamfir NV, Barton CJ, Beausang CW, Caprio MA, Hecht AA, Klug T, Novak JR, Pietralla N, and Von Brentano P

Abstract

Lifetimes of states in 150Nd were measured using the recoil distance method following Coulomb excitation of 150Nd by a 132 MeV 32S beam. The experiment was performed at the Yale Tandem accelerator, employing the SPEEDY gamma-ray detector array and the New Yale Plunger Device. Reduced transition probabilities in 150Nd are compared to the predictions of the critical point symmetry X(5) of the phase/shape transition that occurs for the N = 90 rare earth isotones. Very good agreement was observed between the parameter-free (apart from scale) X(5) predictions and the low-spin level scheme of 150Nd, revealing this as the best case thus far for the realization of the X(5) symmetry.

Published
2002
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18. de Haas-van Alphen effect in single crystal MgB2.

Author

Yelland EA, Cooper JR, Carrington A, Hussey NE, Meeson PJ, Lee S, Yamamoto A, and Tajima S

Abstract

We report observations of quantum oscillations in single crystals of the high temperature superconductor MgB2. Three de Haas-van Alphen frequencies are clearly resolved. Comparison with band structure calculations strongly suggests that two of these come from a single warped Fermi surface tube along the c direction, and that the third arises from cylindrical sections of an in-plane honeycomb network. The measured values of the effective mass range from (0.44-0.68)m(e). By comparing these to calculated band masses, we find that the electron-phonon coupling strength lambda is a factor of approximately 3 larger for the c-axis tube orbits than for the in-plane network orbit, in accord with recent microscopic calculations.

Published
2002
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19. Crossing of shears bands in (197)Pb: B(M1) values and semiclassical description.

Author

Cooper JR, Krücken R, Beausang CW, Novak JR, Dewald A, Klug T, Kemper G, von Brentano P, Carpenter MP, Janssens RV, Lister CJ, and Wiedenhöver I

Abstract

Subpicosecond lifetimes of states in shears band 1 in (197)Pb were measured by means of the recoil distance method employing Gammasphere and the New Yale Plunger Device. The extracted reduced matrix elements, B(M1), show a clear sensitivity to the crossing of different shears configurations reflecting the closing and reopening of the shears blades. The energies and B(M1) values in the band crossing region are successfully described in the framework of the semiclassical model of the shears bands. The relevance of core rotation contributions are shown. The results point to the existence of shears states with an angular momentum coupling angle larger than 90 degrees.

Published
2001
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20. Evolution of fractal patterns during a classical-quantum transition.

Author

Micolich AP, Taylor RP, Davies AG, Bird JP, Newbury R, Fromhold TM, Ehlert A, Linke H, Macks LD, Tribe WR, Linfield EH, Ritchie DA, Cooper J, Aoyagi Y, and Wilkinson PB

Abstract

We investigate how fractals evolve into nonfractal behavior as the generation process is gradually suppressed. Fractals observed in the conductance of semiconductor billiards are of particular interest because the generation process is semiclassical and can be suppressed by transitions towards either fully classical or fully quantum-mechanical conduction. Investigating a range of billiards, we identify a "universal" behavior in the changeover from fractal to nonfractal conductance, which is described by a smooth evolution rather than deterioration in the fractal scaling properties.

Published
2001
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21. Measurement of J/psi and psi(2S) polarization in pp collisions at sqrt[s] = 1.8 TeV.

Author

Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amendolia SR, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Asakawa T, Ashmanskas W, Atac M, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bailey MW, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barone M, Bauer G, Bedeschi F, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bevensee B, Bhatti A, Binkley M, Bisello D, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Cassada J, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Ciobanu CI, Clark AG, Connolly A, Conway J, Cooper J, Cordelli M, Cranshaw J, Cronin-Hennessy D, Cropp R, Culbertson R, Dagenhart D, DeJongh F, Dell'Agnello S, Dell'Orso M, Demina R, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Donati S, Done J, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E Jr, Erdmann W, Errede D, Errede S, Fan Q, Feild RG, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Geer S, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Gold M, Goldstein J, Gordon A, Goshaw AT, Gotra Y, Goulianos K, Green C, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Guo RS, Haas RM, Haber C, Hafen E, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hinrichsen B, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jensen H, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kirby M, Kirk M, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SH, Kim YK, Kirsch L, Klimenko S, Koehn P, Köngeter A, Kondo K, Konigsberg J, Kordas K, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lamoureux JI, Lancaster M, Latino G, LeCompte T, Lee AM 4th, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, LysV J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Musy M, Nachtman J, Nahn S, Nakada H, Nakaya T, Nakano I, Nelson C, Neuberger D, Newman-Holmes C, Ngan CY, Nicolaidi P, Niu H, Nodulman L, Nomerotski A, Oh SH, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Pappas SP, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Plunkett R, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Ragan K, Rakitine A, Reher D, Reichold A, Riegler W, Ribon A, Rimondi F, Ristori L, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Safonov A, Sakumoto WK, Saltzberg D, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Siegrist J, Signorelli G, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Taylor W, Tecchio M, Teng PK, Terashi K, Tether S, Theriot D, Thurman-Keup R, Tipton P, Tkaczyk S, Tollefson K, Tollestrup A, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S 3rd, Velev G, Vidal R, Vilar R, Volobouev I, Vucinic D, Wagner RG, Wagner RL, Wahl J, Wallace NB, Walsh AM, Wang C, Wang CH, Wang MJ, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC 3rd, Wicklund AB, Wicklund E, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yagil A, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, and Zucchelli S

Abstract

We have measured the polarization of J/psi and psi(2S) mesons produced in pp collisions at sqrt[s] = 1.8 TeV, using data collected at the Collider Detector at Fermilab during 1992-1995. The polarization of promptly produced J/psi [psi(2S)] mesons is isolated from those produced in B-hadron decay, and measured over the kinematic range 4 [5.5]

Published
2000
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22. Search for a W' boson via the decay mode W'-->munumu in 1.8 TeV pp collisions.

Author

Abe F, Akimoto H, Akopian A, Albrow MG, Amendolia SR, Amidei D, Antos J, Aota S, Apollinari G, Arisawa T, Asakawa T, Ashmanskas W, Atac M, Azzi-Bacchetta P, Bacchetta N, Bagdasarov S, Bailey MW, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barone M, Bauer G, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bertolucci S, Bettelli S, Bevensee B, Bhatti A, Biery K, Bigongiari C, Binkley M, Bisello D, Blair RE, Blocker C, Bloom K, Blusk S, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, Breccia L, Bromberg C, Bruner N, Brunetti R, Buckley-Geer E, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Campbell M, Caner A, Carithers W, Carlsmith D, Cassada J, Castro A, Cauz D, Cerri A, Chang PS, Chang PT, Chao HY, Chapman J, Cheng MT, Chertok M, Chiarelli G, Chiou CN, Chlebana F, Christofek L, Chu ML, Cihangir S, Clark AG, Cobal M, Cocca E, Contreras M, Conway J, Cooper J, Cordelli M, Costanzo D, Couyoumtzelis C, Cronin-Hennessy D, Cropp R, Culbertson R, Dagenhart D, Daniels T, DeJongh F, Dell'Agnello S, Dell'Orso M, Demina R, Demortier L, Dennino M, Derwent PF, Devlin T, Dittmann JR, Donati S, Done J, Dorigo T, Eddy N, Einsweiler K, Elias JE, Ely R, Engels E Jr, Erdmann W, Errede D, Errede S, Fan Q, Feild RG, Feng Z, Ferretti C, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Frisch H, Fukui Y, Gadomski S, Galeotti S, Gallinaro M, Ganel O, Garcia-Sciveres M, Garfinkel AF, Gay C, Geer S, Gerdes DW, Giannetti P, Giokaris N, Giromini P, Giusti G, Gold M, Gordon A, Goshaw AT, Gotra Y, Goulianos K, Grassmann H, Green C, Groer L, Grosso-Pilcher C, Guillian G, Guimaraes da Costa J, Guo RS, Haber C, Hafen E, Hahn SR, Hamilton R, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hauser J, Hayashi E, Heinrich J, Heiss A, Hinrichsen B, Hoffman KD, Holck C, Hollebeek R, Holloway L, Huang Z, Huffman BT, Hughes R, Huston J, Huth J, Ikeda H, Incagli M, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jensen H, Joshi U, Kajfasz E, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Kestenbaum D, Khazins D, Kikuchi T, Kirk M, Kim BJ, Kim HS, Kim SH, Kim YK, Kirsch L, Klimenko S, Knoblauch D, Koehn P, Köngeter A, Kondo K, Konigsberg J, Kordas K, Korytov A, Kovacs E, Kowald W, Kroll J, Kruse M, Kuhlmann SE, Kuns E, Kurino K, Kuwabara T, Laasanen AT, Lami S, Lammel S, Lamoureux JI, Lancaster M, Lanzoni M, Latino G, LeCompte T, Lee AM 4th, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Lockyer N, Long O, Loreti M, Lucchesi D, Lukens P, Lusin S, Lys J, Maeshima K, Maksimovic P, Mangano M, Mariotti M, Marriner JP, Martignon G, Martin A, Matthews JA, Mazzanti P, McFarland K, McIntyre P, Melese P, Menguzzato M, Menzione A, Meschi E, Metzler S, Miao C, Miao T, Michail G, Miller R, Minato H, Miscetti S, Mishina M, Miyashita S, Moggi N, Moore E, Morita Y, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Musy M, Nakada H, Nakaya T, Nakano I, Nelson C, Neuberger D, Newman-Holmes C, Ngan CY, Niu H, Nodulman L, Nomerotski A, Oh SH, Ohmoto T, Ohsugi T, Oishi R, Okabe M, Okusawa T, Olsen J, Pagliarone C, Paoletti R, Papadimitriou V, Pappas SP, Parashar N, Parri A, Partos D, Patrick J, Pauletta G, Paulini M, Perazzo A, Pescara L, Peters MD, Phillips TJ, Piacentino G, Pillai M, Pitts KT, Plunkett R, Pompos A, Pondrom L, Proudfoot J, Ptohos F, Punzi G, Ragan K, Reher D, Ribon A, Rimondi F, Ristori L, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Saab T, Sakumoto WK, Saltzberg D, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semeria F, Shah T, Shapiro MD, Shaw NM, Shepard PF, Shibayama T, Shimojima M, Shochet M, Siegrist J, Sill A, Sinervo P, Singh P, Sliwa K, Smith C, Snider FD, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Stanco L, Steele J, Stefanini A, Ströhmer R, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki J, Suzuki T, Takahashi T, Takano T, Takashima R, Takikawa K, Tanaka M, Tannenbaum B, Tartarelli F, Taylor W, Tecchio M, Teng PK, Teramoto Y, Terashi K, Tether S, Theriot D, Thomas TL, Thurman-Keup R, Timko M, Tipton P, Titov A, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Toyoda H, Trischuk W, de Troconiz JF, Truitt S, Tseng J, Turini N, Uchida T, Ukegawa F, Valls J, van Den Brink SC, Vejcik S 3rd, Velev G, Vidal R, Vilar R, Vologouev I, Vucinic D, Wagner RG, Wagner RL, Wahl J, Wallace NB, Walsh AM, Wang C, Wang CH, Wang MJ, Warburton A, Watanabe T, Watts T, Webb R, Wei C, Wenzel H, Wester WC 3rd, Wicklund AB, Wicklund E, Wilkinson R, Williams HH, Wilson P, Winer BL, Winn D, Wolinski D, Wolinski J, Worm S, Wu X, Wyss J, Yagil S, Yao W, Yasuoka K, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Zanetti A, Zetti F, and Zucchelli S

Abstract

We report the results of a search for a W' boson produced in pp collisions at a center-of-mass energy of 1.8 TeV using a 107 pb-1 data sample recorded by the Collider Detector at Fermilab. We consider the decay channel W'-->&munumu and search for anomalous production of high transverse mass munumu lepton pairs. We observe no excess of events above background and set limits on the rate of W' boson production and decay relative to standard model W boson production and decay using a fit of the transverse mass distribution observed. If we assume standard model strength couplings of the W' boson to quark and lepton pairs, we exclude a W' boson with invariant mass less than 660 GeV/c2 at 95% confidence level.

Published
2000
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23. Search for scalar top and scalar bottom quarks in pp collisions at square root s=1.8 TeV.

Author

Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amendolia SR, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Asakawa T, Ashmanskas W, Atac M, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bailey MW, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barone M, Bauer G, Bedeschi F, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bertolucci S, Bevensee B, Bhatti A, Bigongiari C, Binkley M, Bisello D, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk BS, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Campbell M, Caner A, Carithers W, Carlson J, Carlsmith D, Cassada J, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Cihangir S, Ciobanu CI, Clark AG, Cobal M, Cocca E, Connolly A, Conway J, Cooper J, Cordelli M, Costanzo D, Cranshaw J, Cronin-Hennessy D, Cropp R, Culbertson R, Dagenhart D, DeJongh F, Dell'Agnello S, Dell'Orso M, Demina R, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Donati S, Done J, Dorigo T 3rd, Eddy N, Einsweiler K, Elias JE, Engels E Jr, Erdmann W, Errede D, Errede S, Fan Q, Feild RG, Ferretti C, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Galeotti S, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Geer S, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Gold M, Goldstein J, Gordon A, Goshaw AT, Gorta Y, Goulianos K, Grassmann H, Green C, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Guo RS, Haber C, Hafen E, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Hinrichsen B, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incagli M, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jensen H, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kirk M, Kim BJ, Kim HS, Kim MJ, Kim SH, Kim YK, Kirsch L, Klimenko S, Knoblauch D, Koehn P, Köngeter A, Kondo K, Konigsberg J, Kordas K, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lamoureux JI, Lancaster M, Latino G, LeCompte T, Lee AM 4th, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Mezione A, Meschi E, Mesropian C, Miao C, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Moggi N, Moore E, Moore R, Morita Y, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Musy M, Nachtman J, Nahn S, Nakada H, Nakaya T, Nakano I, Nelson C, Neuberger D, Newman-Holmes C, Ngan CY, Nicolaidi P, Niu H, Nodulman L, Nomerotski A, Oh SH, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Pappas SP, Parri A, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Perazzo A, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Plunkett R, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Punzi G, Ragan K, Rakitine A, Reher D, Reichold A, Riegler W, Ribon A, Rimondi F, Ristori L, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Sakumoto WK, Saltzberg D, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Siegrist J, Signorelli G, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Stanco L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takashima R, Takikawa K, Tanaka M, Takano T, Tannenbaum B, Taylor W, Tecchio M, Teng PK, Terashi K, Tether S, Theriot D, Thurman-Keup R, Tipton P, Tkaczyk S, Tollefson K, Tollestrup A, Toyoda H, Trischuk W, de Troconiz JF, Truitt S, Tseng J, Turini N, Ukegawa F, Valls J, Vejcik S 3rd, Velev G, Vidal R, Vilar R, Vologouev I, Vucinic D, Wagner RG, Wagner RL, Wahl J, Wallace NB, Walsh AM, Wang C, Wang CH, Wang MJ, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC 3rd, Wicklund AB, Wicklund E, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Worm S, Wu X, Wyss J, Yagil A, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Zanetti A, Zetti F, and Zucchelli S

Abstract

We have searched for direct pair production of scalar top and scalar bottom quarks in 88 pb-1 of pp collisions at sqrt[s]=1.8 TeV with the CDF detector. We looked for events with a pair of heavy flavor jets and missing energy, consistent with scalar top (bottom) quark decays to a charm (bottom) quark and a neutralino. The numbers of events that pass our selections show no significant deviation from standard model expectations. We compare our results to the next-to-leading order scalar quark production cross sections to exclude regions in scalar quark-neutralino mass parameter space.

Published
2000
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24. Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV.

Author

Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amendolia SR, Amidei D, Antos J, Apollinari G, Arisawa T, Asakawa T, Ashmanskas W, Atac M, Azzi-Bacchetta P, Bacchetta N, Bailey MW, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barone M, Bauer G, Bedeschi F, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bertolucci S, Bevensee B, Bhatti A, Bigongiari C, Binkley M, Bisello D, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk BS, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Campbell M, Caner A, Carithers W, Carlson J, Carlsmith D, Cassada J, Castro A, Cauz D, Cerri A, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Cihangir S, Ciobanu CI, Clark AG, Cobal M, Cocca E, Connolly A, Conway J, Cooper J, Cordelli M, Guimaraes da Costa J, Costanzo D, Cranshaw J, Cronin-Hennessy D, Cropp R, Culbertson R, Dagenhart D, Dejongh F, Dell'agnello S, Dell'orso M, Demina R, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Donati S, Done J, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E Jr, Erdmann W, Errede D, Errede S, Fan Q, Feild RG, Ferretti C, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Gadomski S, Galeotti S, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Geer S, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Gold M, Goldstein J, Gordon A, Goshaw AT, Gotra Y, Goulianos K, Grassmann H, Green C, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guo RS, Haber C, Hafen E, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Hinrichsen B, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incagli M, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jensen H, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kirk M, Kim BJ, Kim HS, Kim SH, Kim YK, Kirsch L, Klimenko S, Knoblauch D, Koehn P, Köngeter A, Kondo K, Konigsberg J, Kordas K, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lamoureux JI, Lancaster M, Latino G, Lecompte T, Lee AM 4th, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Lockyer N, Loreti M, Lucchesi D, Lukens P, Lusin S, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Meschi E, Mesropian C, Miao C, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Moggi N, Moore E, Moore R, Morita Y, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Musy M, Nachtman J, Nahn S, Nakada H, Nakaya T, Nakano I, Nelson C, Neuberger D, Newman-Holmes C, Ngan CY, Nicolaidi P, Niu H, Nodulman L, Nomerotski A, Oh SH, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Pappas SP, Parri A, Partos D, Patrick J, Pauletta G, Paulini M, Perazzo A, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Plunkett R, Pompos A, Pondrom L, Pope G, Prokoshin F, Proudfoot J, Ptohos F, Punzi G, Ragan K, Reher D, Riegler W, Ribon A, Rimondi F, Ristori L, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Sakumoto WK, Saltzberg D, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Siegrist J, Signorelli G, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Stanco L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takashima R, Takikawa K, Tanaka M, Takano T, Tannenbaum B, Taylor W, Tecchio M, Teng PK, Terashi K, Tether S, Theriot D, Thurman-Keup R, Tipton P, Tkaczyk S, Tollefson K, Tollestrup A, Toyoda H, Trischuk W, de Troconiz JF, Truitt S, Tseng J, Turini N, Ukegawa F, Valls J, Vejcik S 3rd, Velev G, Vidal R, Vilar R, Vologouev I, Vucinic D, Wagner RG, Wagner RL, Wahl J, Wallace NB, Walsh AM, Wang C, Wang CH, Wang MJ, Watanabe T, Watts T, Webb R, Wenzel H, Wester WC 3rd, Wicklund AB, Wicklund E, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Worm S, Wu X, Wyss J, Yagil A, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Zanetti A, Zetti F, and Zucchelli S

Abstract

We have studied the production of B hadrons in 1.8-TeV pp[over ¯] collisions. We present measurements of the fragmentation fractions, f&#95;{u}, f&#95;{d}, f&#95;{s}, and f&#95;{baryon}, of produced b quarks that yield B^{+}, B^{0}, B&#95;{s}^{0}, and Λ[over ¯]&#95;{b}^{0} hadrons. Reconstruction of five electron-charm final states yields f&#95;{s}/( f&#95;{u}+f&#95;{d})=0.213±0.068 and f&#95;{baryon}/( f&#95;{u}+f&#95;{d})=0.118±0.042, assuming f&#95;{u}=f&#95;{d}. If all B hadrons produced in pp[over ¯] collisions cascade to one of these four hadrons, we determine f&#95;{u}=f&#95;{d}=0.375±0.023, f&#95;{s}=0.160±0.044, and f&#95;{baryon}=0.090±0.029. If we do not assume f&#95;{u}=f&#95;{d}, we find f&#95;{d}/f&#95;{u}=0.84±0.16.

Published
2000
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25. Measurement of the average lifetime of B hadrons produced in pp-bar collisions at sqrt s =1.8 TeV.

Author

Abe F, Albrow M, Amidei D, Anway-Wiese C, Apollinari G, Areti H, Auchincloss P, Azfar F, Azzi P, Bacchetta N, Badgett W, Bailey MW, Bao J, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Bauer G, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Benlloch J, Beretvas A, Berge JP, Bhatti A, Biery K, Binkley M, Bird F, Bisello D, Blair RE, Blocker C, Bodek A, Bolognesi V V, Boswell C, Boulos T, Brandenburg G, Buckley-Geer E, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carithers W, Carlsmith D, Castro A, Cen Y, Cervelli F, Chapman J, Chiarelli G, Chikamatsu T, Cihangir S, Clark AG, Cobal M, Contreras M, Cooper J, Cordelli M, and Coupal DP

Published
1993
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26. Observation of the decay Bs0-->J/ psi phi in p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Albrow M, Amidei D, Anway-Wiese C, Apollinari G, Areti H, Auchincloss P, Azfar F, Azzi P, Bacchetta N, Badgett W, Bailey MW, Bao J, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Bauer G, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Benlloch J, Beretvas A, Bhatti A, Biery K, Binkley M, Bird F, Bisello D, Blair RE, Blocker C, Bodek A, Bolognesi V V, Boswell C, Boulos T, Brandenburg G, Buckley-Geer E, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carithers W, Carlsmith D, Castro A, Cen Y, Cervelli F, Chapman J, Chiarelli G, Chikamatsu T, Cihangir S, Clark AG, Cobal M, Contreras M, Cooper J, Cordelli M, Coupal DP, and Crane D

Published
1993
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28. Measurement of jet shapes in p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Anway-Weiss C, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Badgett W, Bailey MW, Bamberger A, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Bauer G, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Benlloch J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Bisello D, Blair R, Blocker C, Bodek A, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chapman J, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Cobal M, Connor D, Contreras M, and Cooper J

Published
1993
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29. Limit on the rare decay W+/---> gamma pi +/- in pp-bar collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Anway-Weiss C, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Badgett W, Bailey MW, Bamberger A, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Bauer G, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Benlloch J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Bisello D, Blair R, Blocker C, Bodek A, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chapman J, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Cobal M, Connor D, Contreras M, and Cooper J

Published
1992
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30. Measurement of the production and muonic decay rate of W and Z bosons in pp-bar collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Bailey MW, Bamberger A, de Barbaro P, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Bisello D, Blair R, Blocker C, Bodek A, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Cobal M, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, and DeJongh F

Published
1992
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31. Measurement of the ratio B(W--> tau nu )/B(W-->e nu ) in pp-bar collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Bailey MW, Bamberger A, de Barbaro P, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bloom K, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, DeJongh F, Dell'Agnello S, and Dell'Orso M

Published
1992
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32. Measurement of the B-meson and b-quark cross sections at sqrt s =1.8 TeV using the exclusive decay B+/--->J/ psi K+/-

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Bailey MW, Bamberger A, de Barbaro P, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Bisello D, Blair R, Blocker C, Bodek A, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Cobal M, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, and DeJongh F

Published
1992
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33. Measurement of the isolated prompt photon cross section in p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Bailey MW, Bamberger A, de Barbaro P, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Bisello D, Blair R, Blocker C, Bodek A, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Cobal M, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, and DeJongh F

Published
1992
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34. Lepton asymmetry in W-boson decays from p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Bailey MW, Bamberger A, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Denby B, Derwent PF, and Devlin T

Published
1992
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35. Inclusive jet cross section in p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Bailey MW, Bamberger A, de Barbaro P, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Bisello D, Blair R, Blocker C, Bodek A, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Cobal M, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, and DeJongh F

Published
1992
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36. Lower limit on the top-quark mass from events with two leptons in pp-bar collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Bailey MW, Bamberger A, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Caner A, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, and Denby B

Published
1992
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37. Measurement of B0B-bar0 mixing at the Fermilab Tevatron Collider.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bacchetta N, Bailey MW, Bamberger A, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Busetto G, Byon-Wagner A, Byrum KL, Campagnari C, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Castro A, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Denby B, Derwent PF, and Devlin T

Published
1991
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38. Measurement of the Z-boson pT distribution in p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bailey M, Bamberger A, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Byon A, Byrum KL, Campagnari C, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Cousins R, Crane D, Curatolo M, Day C, Dell'Agnello S, Dell'Orso M, Demortier L, Derwent PF, Devlin T, DiBitonto D, Drucker RB, Elias JE, and Ely R

Published
1991
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40. Determinaiton of sin2 theta -barW from the forward-backward asymmetry in pp-bar-->Z0X-->e+e-X interactions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bamberger A, Barnett BA, Barbaro-Galtieri A, Barnes VE, Baumann T, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley-Geer E, Budd HS, Byon A, Byrum KL, Campagnari C, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, Dell'Agnello S, Dell'Orso M, Demortier L, Derwent PF, Devlin T, DiBitonto D, Drucker RB, Elias JE, Ely R, Eno S, and Errede S

Published
1991
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41. Measurement of the W-boson PT distribution in p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bamberger A, Barnett BA, Barbaro-Galtieri A, Barnes VE, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bolognesi V V, Booth AW, Boswell C, Brandenburg G, Brown D, Buckley E, Budd HS, Byon A, Byrum KL, Campagnari C, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, Dell'Agnello S, Dell'Orso M, Demortier L, Derwent PF, Devlin T, DiBitonto D, Drucker RB, Elias JE, Ely R, Eno S, Errede S, and Esposito B

Published
1991
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42. Measurement of the W-boson mass.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bamberger A, Barbaro-Galtieri A, Barnes VE, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Booth AW, Brandenburg G, Brown D, Buckley E, Byon A, Byrum KL, Campagnari C, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, Dell'Agnello S, Dell'Orso M, Demortier L, Derwent PF, Devlin T, DiBitonto D, Drucker RB, Elias JE, Ely R, Errede S, Esposito B, Flaugher B, Foster GW, Franklin M, Freeman J, and Frisch H

Published
1990
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43. Jet-fragmentation properties in p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Ascoli G, Atac M, Auchincloss P, Baden AR, Barbaro-Galtieri A, Barnes VE, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge P, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bofill J, Booth AW, Brandenburg G, Brown D, Byon A, Byrum KL, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chapin T, Chiarelli G, Chinowsky W, Cihangir S, Cline D, Connor D, Contreras M, Cooper J, Cordelli M, Curatolo M, Day C, DelFabbro R, Dell'Agnello S, Dell'Orso M, DeMortier L, Devlin T, DiBitonto D, Diebold R, Dittus F, DiVirgilio A, Elias JE, Ely R, Errede S, Esposito B, Flaugher B, Focardi E, Foster GW, and Franklin M

Published
1990
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45. Measurement of D production in jets from p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Ascoli G, Atac M, Auchincloss P, Baden AR, Barbaro-Galtieri A, Barnes VE, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge P, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bofill J, Booth AW, Brandenburg G, Brown D, Byon A, Byrum KL, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chapin T, Chiarelli G, Chinowsky W, Cihangir S, Cline D, Connor D, Contreras M, Cooper J, Cordelli M, Curatolo M, Day C, DelFabbro R, Dell'Orso M, DeMortier L, Devlin T, DiBitonto D, Diebold R, Dittus F, DiVirgilio A, Elias JE, Ely R, Errede S, Esposito B, Flaugher B, Focardi E, Foster GW, Franklin M, and Freeman J

Published
1990
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46. Measurement of the ratio sigma (W-->e nu )/ sigma (Z-->ee) in p-barp collisions at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bamberger A, Barbaro-Galtieri A, Barnes VE, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Booth AW, Brandenburg G, Brown D, Buckley E, Byon A, Byrum KL, Campagnari C, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, Dell'Agnello S, Dell'Orso M, Demortier L, Derwent PF, Devlin T, DiBitonto D, Drucker RB, Elias JE, Ely R, Errede S, Esposito B, Flaugher B, Foster GW, Franklin M, Freeman J, and Frisch H

Published
1990
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47. Search for the top quark in the reaction p-barp-->electron+jets at sqrt s =1.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bamberger A, Barbaro-Galtieri A, Barnes VE, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Booth AW, Brandenburg G, Brown D, Buckley E, Byon A, Byrum KL, Campagnari C, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, Dell'Agnello S, Dell'Orso M, DeMortier L, Derwent PF, Devlin T, DiBitonto D, Drucker RB, Elias JE, Ely R, Errede S, Esposito B, Flaugher B, Foster GW, Franklin M, Freeman J, and Frisch H

Published
1990
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48. Search for new heavy quarks in electron-muon events at the Fermilab Tevatron Collider.

Author

Abe F, Amidei D, Apollinari G, Atac M, Auchincloss P, Baden AR, Bamberger A, Barbaro-Galtieri A, Barnes VE, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge JP, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Booth AW, Brandenburg G, Brown D, Buckley E, Byon A, Byrum KL, Campagnari C, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chiarelli G, Chinowsky W, Cihangir S, Clark AG, Connor D, Contreras M, Cooper J, Cordelli M, Crane D, Curatolo M, Day C, Dell'Agnello S, Dell'Orso M, DeMortier L, Derwent PF, Devlin T, DiBitonto D, Drucker RB, Elias JE, Ely R, Errede S, Esposito B, Flaugher B, Foster GW, Franklin M, Freeman J, and Frisch H

Published
1990
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49. Two-jet differential cross section in pp-bar collisions at sqrt s-bar11.8 TeV.

Author

Abe F, Amidei D, Apollinari G, Ascoli G, Atac M, Auchincloss P, Baden AR, Barbaro-Galtieri A, Barnes VE, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge P, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bofill J, Booth AW, Brandenburg G, Brown D, Byon A, Byrum KL, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chapin T, Chiarelli G, Chinowsky W, Cihangir S, Cline D, Connor D, Contreras M, Cooper J, Cordelli M, Curatolo M, Day C, DelFabbro R, Dell'Orso M, DeMortier L, Devlin T, DiBitonto D, Diebold R, Dittus F, DiVirgilio A, Elias JE, Ely R, Errede S, Esposito B, Feldman A, Flaugher B, Focardi E, Foster GW, and Franklin M

Published
1990
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