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1. Quantum Probability as the Sum of Holonomies of the Canonical One-Form

Author: C. G. Trahern
Published: 2023

2. SEARCH FOR CHARGED HEAVY LEPTONS WITH ARBITRARY NEUTRINO MASSES IN e+e− ANNIHILATIONS AT $\sqrt{s} = 50 - 60.8~{\rm GeV}$

Author: Richard Breedon, M. H. Ye, Hiroyuki Sagawa, H. Miyata, J. Vinson, S. Lusin, W. Metcalf, K. Gotow, C. G. Trahern, T. Kumita, David Stuart, Takashi Sasaki, H. S. Budd, Kazuo Abe, C. Rosenfeld, Y. C. Zhu, S. L. Olsen, A. Sill, D. Perticone, F. Sannes, Y. Fujii, J. S. Kang, Y. Sugimoto, T. Mori, R. R. McNeil, Kaori Maeshima, K. Ohta, K. P. Hu, Winston Ko, K. Ueno, F. Kajino, Yasuo Higashi, M. H. Lee, R. Tanaka, E. J. Kim, E. H. Thorndike, J. Lim, G. N. Kim, S. Kobayashi, Robert Stone, J. Li, D. Blanis, Y. Sakai, Y. H. Ho, S.K. Kim, N. M. Shaw, Tsunehiko Omori, P. Gu, I. H. Park, S. Matsumoto, J. Liu, T. Nozaki, R. L. Malchow, P. Auchincloss, K. L. Sterner, Bj Kim, R. L. Imlay, D. H. Han, Yongsun Kim, J. Rowe, T. Ishizuka, R. D. Kass, K. Tomioka, A. Maki, C. P. Cheng, A. Bodek, C. A. Fry, S. S. Myung, H. W. Zheng, R. C. Walker, A. Bacala, Steve Schnetzer, H. Harada, Y. Takaiwa, Dong-Chul Son, H. Kagan, C. Velissaris, M. E. Mattson, A. Abashian, Y. Ishi, Yoshimasa Kurihara, E. H. Low, S. Wilson, P. N. Kirk, R. L. Lander, Y. Yamashita, Y. K. Li, A. Murakami, M. Frautschi, R. Poling, Kazumasa Miyano, Sarah Catherine Eno, Susumu Terada, T. Thomas, A. T.M. Wang, J. R. Smith, Hyunyong Kim, and L. E. Piilonen
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Phenomenology, Hadron, Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Massless particle, Nuclear physics, Pair production, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Lepton
Abstract: Results of a search for the pair production of charged heavy leptons in e+e− annihilations over the center-of-mass energy range of 50 to 60.8 GeV are reported. We assume that the leptons are of the sequential type but have allowed for the case where the associated neutrino might be massive. Separate searches for evidence for decays to hadronic and leptonic final states, searches specialized for the case where the charged lepton and its associated neutrino are close in mass, and a search for stable heavy leptons have uncovered no evidence for the production of such particles at these energies. Mass limits for heavy leptons and their associated neutrinos are determined for a range of hadronic and leptonic decay branching fractions. A sequential charged heavy lepton with mass between 12.6 and 29.6 GeV/c2 and with massless neutrino is excluded at the 95% confidence level.
Published: 1991

3. Measurements ofRfore+e−annihilation at the KEK collider TRISTAN

Author: M. Frautschi, Y. Sakai, M. H. Ye, Y. Fujii, Hiroyuki Sagawa, Y. K. Li, D. H. Han, E. H. Thorndike, T. Mori, D. Perticone, J. Lim, R. Poling, Y. Sugimoto, J. Li, A. Bacala, Yoshimasa Kurihara, W. Metcalf, Robert Stone, Rr Mcneil, T. Nozaki, J. S. Kang, L. E. Piilonen, E. H. Low, E. J. Kim, C. G. Trahern, A. Murakami, H. S. Budd, Takashi Sasaki, T. Kumita, S. K. Kim, R. C. Walker, Steve Schnetzer, K. Ueno, A. Abashian, F. Sannes, Kazuo Abe, G. N. Kim, Kaori Maeshima, K. P. Hu, C. P. Cheng, Y. Yamagishi, R. L. Malchow, F. Kajino, R. Tanaka, C. A. Fry, Yongsun Kim, P. Gu, R. L. Lander, T. Kojima, A. Sill, H. Kagan, R. Imlay, R. D. Kass, M. H. Lee, T. Yasuda, K. Ohta, Winston Ko, N. M. Shaw, A. Maki, Richard Breedon, K. Gotow, Kazumasa Miyano, S. Kobayashi, David Stuart, S. Lusin, S. Matsumoto, Y. H. Ho, D. Blanis, S. Wilson, Y. Takaiwa, J. Vinson, A. Bodek, Hyunyong Kim, Dong-Chul Son, Sarah Catherine Eno, I. H. Park, Susumu Terada, J. Liu, Yusuke Higashi, Y. C. Zhu, K. L. Sterner, H. Harada, S. L. Olsen, T. Ishizuka, P. Auchincloss, S. S. Myung, H. W. Zheng, T. Thomas, M. E. Mattson, Y. Ishi, P. N. Kirk, Y. Yamashita, A. T.M. Wang, J. R. Smith, Tsunehiko Omori, C. Rosenfeld, and H. Miyata
Subjects: Nuclear physics, Physics, Particle physics, Antiparticle, Muon, Annihilation, Pair production, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Antimatter, Electron–positron annihilation, Hadron, Elementary particle
Abstract: The ratio {ital R} of the total cross section for {ital e}{sup +}{ital e}{sup {minus}} annihilation into hadrons to the lowest-order QED cross section for {ital e}{sup +}{ital e}{sup {minus}}{r arrow}{mu}{sup +}{mu}{sup {minus}} has been measured for center-of-mass energies ranging from 50 to 61.4 GeV. If we allow for an overall shift of {minus}4.9%, about 1.5 times our estimated normalization error, the results are consistent with the standard-model predictions.
Published: 1990

4. Observation of anomalous production of muon pairs in e+e− annihilation into four-lepton final states

Author: S. S. Myung, H. W. Zheng, H. Kagan, M. H. Ye, Rr Mcneil, E. H. Thorndike, J. Lim, A. Maki, M. E. Mattson, A. Bodek, C. A. Fry, Gordon Watts, S. K. Kim, Y. Ishi, R. C. Walker, Steve Schnetzer, Tsunehiko Omori, D. H. Han, P. Gu, H. Ichinose, Hiroyuki Sagawa, F. Kajino, Y. Sakai, M. Dickson, S. Lusin, T. Thomas, Yoshimasa Kurihara, Kazuo Abe, J. Li, David Stuart, P. N. Kirk, T. Nozaki, R. L. Malchow, C. Velissaris, Yasuhiro Sugimoto, L. E. Piilonen, W. Metcalf, N. M. Shaw, Yongsun Kim, Kaori Maeshima, Y. Yamashita, E. J. Kim, H. S. Budd, Y. Yamagishi, C. P. Cheng, M. Frautschi, R. D. Kass, R. Tanaka, Y. Takaiwa, Takashi Sasaki, Y. C. Zhu, H. Miyata, S. L. Olsen, Hyunyong Kim, E. H. Low, G. N. Kim, A. Bacala, Dong-Chul Son, M. H. Lee, F. Sannes, A. Sill, A. Murakami, K. P. Hu, Y. Fujii, S. Wilson, D. Blanis, K. Ohta, A. Abashian, T. Kojima, J. R. Smith, Winston Ko, Yusuke Higashi, S. Matsumoto, T. Yasuda, S. Kobayashi, Y. H. Ho, R. Imlay, K. Gotow, K. L. Sterner, C. Rosenfeld, A. T.M. Wang, T. Mori, C. G. Trahern, T. Kumita, Kazumasa Miyano, Sarah Catherine Eno, Susumu Terada, B. J. Kim, Y. K. Li, R. Poling, R. L. Lander, Robert Stone, H. Harada, P. Auchincloss, Richard Breedon, J. Vinson, D. Perticone, J. S. Kang, K. Ueno, I. H. Park, J. Liu, and T. Ishizuka
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Muon, Electron–positron annihilation, Bremsstrahlung, law.invention, Nuclear physics, Angular distribution, law, Beam direction, High Energy Physics::Experiment, Nuclear Experiment, Collider, Lepton
Abstract: We report results of a study of four-lepton final states produced in e+e− collisions at center-of-mass energies from 50 to 61.4 GeV using the AMY detector at the TRISTAN collider. For the cases where two or three charged tracks are produced at large angles relative to the beam direction, the cross sections agree with QED. However, we observe an excess of e+e−→e+e−μ+μ− events with four tracks at wide angles and with dimuon mass less than 1.0 GeV/c2.
Published: 1990

5. Multihadron-event properties ine+e−annihilation ats=52−57GeV

Author: R. Tanaka, M. Frautschi, H. Miyata, A. Abashian, Takashi Sasaki, J. Li, M. H. Lee, L. E. Piilonen, Y. Sakai, W. Metcalf, H. Kagan, N. M. Shaw, T. Mori, I. H. Park, R. R. McNeil, P. Auchincloss, J. Liu, S. Wilson, R. L. Imlay, T. Ishizuka, S. Lusin, D. Perticone, Hiroyuki Sagawa, C. A. Fry, S. Matsumoto, Kazumasa Miyano, J. S. Kang, A. Bodek, T. Kojima, C. P. Cheng, T. Yasuda, Y. Takaiwa, K. Ueno, E. H. Low, Yasuhiro Sugimoto, Tsunehiko Omori, R. C. Walker, S. Kobayashi, F. Sannes, A. Maki, K. Gotow, Y. Fujii, Steve Schnetzer, C. G. Trahern, Dong-Chul Son, Kazuo Abe, T. Kumita, Robert Stone, T. Nozaki, K. P. Hu, Hyunyong Kim, Richard Breedon, H. S. Budd, G. N. Kim, S. S. Myung, H. W. Zheng, Sarah Catherine Eno, Susumu Terada, R. L. Lander, Kaori Maeshima, J. Vinson, E. J. Kim, Y. Yamagishi, M. H. Ye, H. Harada, Yoshimasa Kurihara, J. R. Smith, T. Thomas, D. H. Han, Yusuke Higashi, Y. K. Li, A. Murakami, R. Poling, M. E. Mattson, A. Sill, A. T.M. Wang, K. Ohta, Winston Ko, Y. Ishi, P. N. Kirk, Y. H. Ho, Y. Yamashita, D. Blanis, A. Bacala, K. L. Sterner, S. K. Kim, R. L. Malchow, F. Kajino, Yongsun Kim, R. D. Kass, E. H. Thorndike, J. Lim, P. Gu, David Stuart, Y. C. Zhu, S. L. Olsen, and C. Rosenfeld
Subjects: Quantum chromodynamics, Astroparticle physics, Physics, Particle physics, Annihilation, High Energy Physics::Phenomenology, Hadron, High Energy Physics::Experiment, Parton, Elementary particle, Quantum field theory, Nuclear Experiment, Hadronization
Abstract: We present the general properties of multihadron final states produced by {ital e}{sup +}{ital e}{sup {minus}} annihilation at center-of-mass energies from 52 to 57 GeV in the AMY detector at the KEK collider TRISTAN. Global shape, inclusive charged-particle, and particle-flow distributions are presented. Our measurements are compared with QCD+fragmentation models that use either leading-logarithmic parton-shower evolution or QCD matrix elements at the parton level, and either string or cluster fragmentation for hadronization.
Published: 1990

6. A search for leptoquark and colored lepton pair production in e+e− annihilations at TRISTAN

Author: E. H. Thorndike, Y. Sugimoto, P. Auchincloss, J. Lim, T. Nozaki, A. T.M. Wang, J. R. Smith, P. Gu, Hyunyong Kim, M. H. Lee, C. Rosenfeld, W. Metcalf, T. Kojima, I. H. Park, T. Yasuda, Y. Fujii, E. J. Kim, Dong-Chul Son, S. Wilson, David Stuart, J. Liu, F. Sannes, Takashi Sasaki, K. Gotow, K. P. Hu, T. Ishizuka, P. N. Kirk, R. Imlay, M. Frautschi, Tsunehiko Omori, Y. K. Li, A. Bacala, R. R. McNeill, S. K. Kim, Y. Yamashita, Yusuke Higashi, Y. C. Zhu, S. L. Olsen, D. H. Han, Richard Breedon, G. N. Kim, S. Matsumoto, A. Maki, N. M. Shaw, R. Poling, T. Mori, F. Kajino, C. A. Fry, D. Perticone, Y. Sakai, M. H. Ye, A. Abashian, J. S. Kang, M. E. Mattson, J. Vinson, J. Li, R. L. Lander, L. E. Piilonen, R. L. Malchow, Y. Ishi, R. Tanaka, K. Ueno, Y. Takaiwa, C. G. Trahern, E. H. Low, Robert Stone, S. Lusin, T. Kumita, R. D. Kass, T. Thomas, A. Murakami, C. P. Cheng, Hiroyuki Sagawa, A. Sill, R. C. Walker, Steve Schnetzer, Yk Kim, K. Ohta, D. Blanis, Winston Ko, H. Miyata, Kazuo Abe, S. Kobayashi, Kazumasa Miyano, Kaori Maeshima, Yoshimasa Kurihara, H. S. Budd, Y. Yamagishi, K. L. Sterner, Sarah Catherine Eno, Susumu Terada, H. Harada, H. Kagan, A. Bodek, S. S. Myung, and H. W. Zheng
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Pair production, Colored, Electron–positron annihilation, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Leptoquark, Lepton
Abstract: We report on a search for the pair production of leptoquarks and colored leptons in e + e − annihilations t center-of-mass energies from 50 to 60.8 GeV, using the AMY detector at TRISTAN. No evidence for such particles is found and 95% CL mass limits are given.
Published: 1990

7. Forward-backward charge asymmetry ine+e−→hadron jets

Author: D. Stuart, R. E. Breedon, G. N. Kim, Winston Ko, R. L. Lander, K. Maeshima, R. L. Malchow, J. R. Smith, R. Imlay, P. Kirk, J. Lim, R. R. McNeil, W. Metcalf, S. S. Myung, C. P. Cheng, P. Gu, J. Li, Y. K. Li, M. H. Ye, Y. C. Zhu, A. Abashian, K. Gotow, K. P. Hu, E. H. Low, M. E. Mattson, L. Piilonen, K. L. Sterner, S. Lusin, C. Rosenfeld, A. T. M. Wang, S. Wilson, M. Frautschi, H. Kagan, R. Kass, C. G. Trahern, K. Abe, Y. Fujii, Y. Higashi, S. K. Kim, Y. Kurihara, A. Maki, T. Nozaki, T. Omori, H. Sagawa, Y. Sakai, Y. Sugimoto, Y. Takaiwa, S. Terada, R. Walker, F. Kajino, D. Perticone, R. Poling, T. Thomas, Y. Ishi, K. Miyano, H. Miyata, T. Sasaki, Y. Yamashita, A. Bacala, J. Liu, I. H. Park, F. Sannes, S. Schnetzer, R. Stone, J. Vinson, P. Auchincloss, D. Blanis, A. Bodek, H. Budd, S. Eno, C. A. Fry, H. Harada, Y. H. Ho, Y. K. Kim, T. Kumita, T. Mori, S. L. Olsen, N. M. Shaw, A. Sill, E. H. Thorndike, K. Ueno, H. W. Zheng, S. Kobayashi, A. Murakami, J. S. Kang, H. J. Kim, M. H. Lee, D. H. Han, E. J. Kim, D. Son, T. Kojima, S. Matsumoto, R. Tanaka, Y. Yamagishi, T. Yasuda, T. Ishizuka, and K. Ohta (The AMY Collaboration)
Subjects: Quark, Physics, Particle physics, Annihilation, High Energy Physics::Lattice, Computer Science::Information Retrieval, media_common.quotation_subject, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Elementary particle, Charge (physics), Asymmetry, Standard Model, Nuclear physics, High Energy Physics::Experiment, Production (computer science), media_common
Abstract: The forward-backward asymmetry of quarks produced in {ital e}{sup +}{ital e}{sup {minus}} annihilations, summed over all flavors, is measured at {radical}{ital s} between 50 and 60.8 GeV. Methods of determining the charge direction of jet pairs are discussed. The asymmetry is found to agree with the five-flavor standard model.
Published: 1990

8. A search for SUSY particles in e +e − annihilations at s=50–60.8GeV

Author: K. Gotow, Y. Fujii, T. Mori, H. Kagan, H. Itoh, Yasuhiro Sugimoto, Y. T. Xu, A. Maki, E. H. Low, C. G. Trahern, T. Kumita, I. H. Park, Tsunehiko Omori, W. Metcalf, S. Matsumoto, Kazuo Abe, Z. P. Mao, S. Lusin, Y. K. Li, T. Ishizuka, J.S. Kang, A. Bacala, M. C.S. Williams, S. Kobayashi, R. C. Walker, M. Frautschi, H. Harada, Kaori Maeshima, Steve Schnetzer, A. T.M. Wang, A. Murakami, D. Perticone, P. Auchincloss, Y. Yamagishi, T. Kojima, S. Wilson, E.J. Kim, R. L. Lander, F. Sannes, G. N. Kim, T. Yasuda, P. N. Kirk, K. Ueno, J. Li, K. P. Hu, A. Bodek, M.H. Lee, Robert Stone, J. R. Smith, Hiroyuki Sagawa, Richard Breedon, Y. Yamashita, R. L. Malchow, Yusuke Higashi, R. L. Imlay, Yongsun Kim, C. P. Cheng, J. Vinson, R. D. Kass, D. Son, M. E. Mattson, N. M. Shaw, Y. Ishi, C. Rosenfeld, H. S. Budd, H. Miyata, Y. Sakai, Ryuki Tanaka, Y. Takaiwa, K. Toyoshima, T. Thomas, S. S. Myung, H. W. Zheng, R. Poling, A. Abashian, Yoshimasa Kurihara, Kazumasa Miyano, Sarah Catherine Eno, Susumu Terada, H. J. Kim, D. Blanis, K. L. Sterner, E. H. Thorndike, J. Lim, D.H. Han, P. Gu, H. Yokota, David Stuart, S. K. Kim, Y. C. Zhu, S. L. Olsen, F. Kajino, R. R. McNeil, A. Sill, C. A. Fry, K. Ohta, Y. H. Ho, L. E. Piilonen, M. H. Ye, KO Winston, T. Nozaki, and Takashi Sasaki
Subjects: Physics, Quark, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Supersymmetry, lcsh:QC1-999, Nuclear physics, Pair production, Higgs boson, High Energy Physics::Experiment, lcsh:Physics, Lepton
Abstract: Searches for the pair production of the supersymmetric partner particles of leptons, quarks, and non-minimal Higgs have been made in e + e − annihilations at center-of-mass energies between 50 and 60.8 GeV using the AMY detector at TRISTAN. No evidence for their existence is observed and 95% CL mass limits are presented.
Published: 1990

9. Mass limits of charged Higgs boson at largetanβfrome+e−annihilations ats=50−60.8GeV

Author: D. H. Han, A. Sill, K. Ohta, Winston Ko, Y. H. Ho, Robert Stone, Hiroyuki Sagawa, A. Bacala, N. M. Shaw, Dong-Chul Son, C. G. Trahern, T. Kumita, David Stuart, Yusuke Higashi, Y. K. Li, A. Murakami, R. L. Malchow, Y. Takaiwa, H. S. Budd, Yasuhiro Sugimoto, R. C. Walker, Yongsun Kim, R. Poling, Bj Kim, J. Li, P. N. Kirk, T. Kojima, Takashi Sasaki, Y. C. Zhu, R. D. Kass, Steve Schnetzer, S. L. Olsen, T. Yasuda, H. Kagan, R. L. Imlay, Y. Yamashita, Yoshimasa Kurihara, K. Gotow, Y. Fujii, C. P. Cheng, E. H. Thorndike, E. H. Low, J. Lim, M. E. Mattson, Kazumasa Miyano, M. Frautschi, A. Maki, S. Wilson, T. Mori, Kazuo Abe, Y. Ishi, P. Gu, T. Nozaki, Sarah Catherine Eno, Susumu Terada, P. Auchincloss, A. T.M. Wang, E. J. Kim, Kaori Maeshima, Y. Yamagishi, M. H. Ye, M. H. Lee, J. R. Smith, W. Metcalf, S. Matsumoto, F. Sannes, S. S. Myung, H. W. Zheng, R. L. Lander, K. P. Hu, Richard Breedon, J. Vinson, H. Harada, S. K. Kim, J. Rowe, A. Bodek, F. Kajino, C. Velissaris, C. Rosenfeld, R. Tanaka, G. N. Kim, S. Lusin, D. Blanis, I. H. Park, J. Liu, T. Ishizuka, K. L. Sterner, D. Perticone, J. S. Kang, R. R. McNeil, K. Ueno, S. Kobayashi, C. A. Fry, Hyunyong Kim, T. Thomas, A. Abashian, H. Miyata, Y. Sakai, Tsunehiko Omori, and L. E. Piilonen
Subjects: Physics, Antiparticle, Particle decay, Particle physics, Pair production, Computer Science::Information Retrieval, Antimatter, High Energy Physics::Phenomenology, Higgs boson, High Energy Physics::Experiment, Elementary particle, Lepton, Higgs sector
Abstract: A search for the pair production of charged Higgs particles decaying via the {ital H}{sup {minus}}{r arrow}{tau}{bar {nu}} mode has been made in {ital e}{sup +}{ital e}{sup {minus}} annihilations at center-of-mass energies between 50 and 60.8 GeV using the AMY detector at the KEK collider TRISTAN. No evidence for their existence is observed and 95%-C.L. mass limits are presented. The result has been interpreted in terms of the tan{beta} parameter in the Higgs sector.
Published: 1990

10. SXF (Standard eXchange Format): definition, syntax, examples

Author: J. Holt, R. Talman, N. Malitsky, C. G. Trahern, H. Grote, and F. Pilat
Subjects: Standard exchange format, Theoretical computer science, Syntax (programming languages), Programming language, Computer science, computer.software_genre, computer
Published: 1998

11. AGS to RHIC Transfer Line: Design and Commissioning

Author: W. MacKay, L. Ahrens, M. Brennan, K. Brown, T. Clifford, R. Connolly, F. Dell, D. P. Deng, L. Hoff, J. Kewisch, G. Maldonado, B. Martin, R. Olsen, S. Peggs, F. Pilat, T. Robinson, S. Sathe, T. Satogata, D. Shea, T. J. Shea, M. Tanaka, P. Thompson, S. Tepikian, C. G. Trahern, D. Trbojevic, N. Tsoupas, J. Wei, R. Witkover, and P. Zhou
Subjects: Physics, Ion beam, Instrumentation, Transfer line, Particle accelerator, Alternating Gradient Synchrotron, law.invention, Nuclear physics, law, Computer Science::Programming Languages, Physics::Accelerator Physics, Laser beam quality, Nuclear Experiment, Relativistic Heavy Ion Collider, Beam (structure)
Abstract: In the fall of 1995, we successfully completed a major milestone in the RHIC (Relativistic Heavy Ion Collider) project: the first beam test of the AGS (Alternating Gradient Synchrotron) to RHIC (ATR) transfer line. The ATR serves as a test bed for the new RHIC control system. This transfer line is highly instrumented, with several types of instrumentation for characterizing the extracted beam from AGS and for matching the beam into RHIC. We describe the design and performance of ATR with gold ions with an eye to reaching the design criteria for RHIC operation, both in beam quality and controls.
Published: 1996

12. A Proposed Flat Yet Hierarchial Accelerator Lattice Object Model

Author: N. Malitsky, R. Talman, G. F. Dell, S. Peggs, F. Pilat, T. Satogata, S. Tepikian, D. Trbojevic, C. G. Trahern, J. Wei, and L. Schachinger
Subjects: Physics, Theoretical physics, law, Lattice (order), Object model, Particle accelerator, Geometry, law.invention
Published: 1995

13. Is the effective Lagrangian for quantum chromodynamics a σ model?

Author: C. G. Trahern, Joseph Schechter, and Carl Rosenzweig
Subjects: Physics, Quantum chromodynamics, Instanton, Conservation law, Amplitude, Generalization, Vacuum angle, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Sigma, Gluon field, Mathematical physics
Abstract: A fully interacting effective chiral Lagrangian obeying the anomalous axial-baryon-current conservation law is constructed. This Lagrangian is a generalization of one implied by the $\frac{1}{N}$ approximation. In a certain sense, the old $\ensuremath{\sigma}$ model is recovered. Our Lagrangian displays the dependence of amplitudes on the quantum-chromodynamic vacuum angle $\ensuremath{\theta}$, gives soft ${\ensuremath{\eta}}^{\ensuremath{'}}$ theorems, and hints at a possible complementarity between the instanton and $\frac{1}{N}$ approaches. We can rewrite our model in terms of a gauge-invariant gluon field.
Published: 1993

14. Search for the substructure of leptons in high energy QED processes at tristan

Author: S. Trentalange, A. Bacala, Rr Mcneil, M. E. Mattson, M. Frautschi, W. Metcalf, S. Sakamoto, Yoshimasa Kurihara, Y. C. Zhu, Y. Ishi, H. Ichinose, S. L. Olsen, F. Kajino, Yasuo Higashi, Robert Stone, R. Chiba, E. H. Low, T. Thomas, S. K. Kim, A. Murakami, T. Mori, Tsunehiko Omori, E. H. Thorndike, C. A. Fry, R. Coombes, J. Lim, H. Itoh, S. Lusin, F. Sannes, R. L. Malchow, M. H. Lee, K. Gotow, P. N. Kirk, F. Naito, Kazumasa Miyano, K. Sparks, Yk Kim, Z. P. Mao, R. D. Kass, Hj Kim, J. Li, D. Blanis, Y. Yamashita, H. Miyata, H. Yokota, M. C.S. Williams, Sarah Catherine Eno, Susumu Terada, K. Eguchi, K. L. Sterner, J. Vinson, T. Takeda, K. Toyoshima, E. J. Kim, S. Matsumoto, Steve Schnetzer, D. Perticone, J. S. Kang, A. Maki, P. Perez, R. L. Imlay, S. Wilson, C. P. Cheng, C. Rosenfeld, Y. K. Li, Y. Sugimoto, H. Kozuka, K. Ueno, H. Harada, H. Kagan, Kiyosumi Tsuchiya, H. W. Zheng, A. T.M. Wang, R. Poling, Kazuo Abe, T. Nozaki, G. N. Kim, Kaori Maeshima, L. E. Piilonen, Hiroyuki Sagawa, Y. T. Xu, C. G. Trahern, T. Kumita, James C. Green, A. Sill, K. Ohta, Winston Ko, S. Kobayashi, I. H. Park, Y. H. Ho, N. M. Shaw, S. Igarashi, Dong-Chul Son, T. Ishizuka, R. L. Lander, Y. Takaiwa, H. S. Budd, S. S. Myung, R. Tanaka, A. Bodek, A. Abashian, Y. Sakai, T. Sasaki, Smith, and Y. Fujii
Subjects: Scattering cross-section, Physics, Nuclear and High Energy Physics, Particle physics, High energy, Muon, Electron–positron annihilation, High Energy Physics::Phenomenology, Electron, Nuclear physics, Excited state, Substructure, High Energy Physics::Experiment, Lepton
Abstract: QED processes up to O(α 4 ) have been studied at center-of-mass energies between 50 and 57 GeV using the AMY detector at TRISTAN. A possible substructure of the electron and muon is investigated in terms of chiral invariant contact interactions and also in terms of excited lepton production. The differential cross section data for e + e − →e + e − are consistent with the standard model at a confidence level of only 3.5%. From the absence of excited lepton production, we establish new upper limits on the coupling to excited electrons of mass up to 56 GeV/ c 2 and on the coupling to excited muons of mass up to 52 GeV/ c 2 .
Published: 1989

15. Measurement of e^{+}e^{-}→bb¯ forward-backward charge asymmetry between √s =52 and 57 GeV

Author: C. Rosenfeld, Yasuhiro Sugimoto, Z. P. Mao, M. H. Lee, Takashi Sasaki, S. Wilson, David Stuart, A. Bacala, D. H. Han, G. N. Kim, Robert Stone, H. Harada, K. Gotow, Y. Fujii, S. Matsumoto, D. Blanis, A. Bodek, L. E. Piilonen, J. Li, Y. C. Zhu, S. L. Olsen, H. Kozuka, J. Vinson, K. Toyoshima, P. Perez, H. Kagan, H. W. Zheng, Y. T. Xu, N. M. Shaw, Steve Schnetzer, T. Nozaki, Y. Ishi, Y. K. Li, A. Murakami, R. L. Imlay, E. H. Thorndike, J. Lim, M. E. Mattson, S. S. Myung, Kazuo Abe, K. Ueno, R. Poling, C. P. Cheng, E. J. Kim, P. N. Kirk, P. Gu, K. Ohta, Winston Ko, Dong-Chul Son, Ryuki Tanaka, Kaori Maeshima, Y. Takaiwa, K. L. Sterner, Kazumasa Miyano, K. Sparks, Y. H. Ho, Y. Yamashita, R. L. Malchow, Yongsun Kim, R. D. Kass, Sarah Catherine Eno, Susumu Terada, Yoshimasa Kurihara, Hiroyuki Sagawa, A. Maki, E. H. Low, Alan Sill, H. S. Budd, T. L.T. Thomas, Yusuke Higashi, R. L. Lander, M. Frautschi, Hyunyong Kim, J. R. Smith, A. Abashian, M. C.S. Williams, R. R. McNeil, S. K. Kim, H. Ichinose, F. Kajino, A. T.M. Wang, C. A. Fry, H. Itoh, J. S. Kang, Hideo Yokota, S. Kobayashi, I. H. Park, T. Ishizuka, H. Miyata, Y. Sakai, S. Lusin, D. Perticone, Tsunehiko Omori, T. Mori, C. G. Trahern, T. Kumita, T. Takeda, W. Metcalf, F. Sannes, and K. P. Hu
Subjects: Physics, Particle physics, Annihilation, Pair production, Electron–positron annihilation, Hadron, General Physics and Astronomy, Production (computer science), Charge (physics), Bottom quark, Energy (signal processing)
Abstract: Using 123 multihadronic inclusive muon-production ${e}^{+}$${e}^{\mathrm{\ensuremath{-}}}$ annihilation events at an average c.m. energy of 55.2 GeV, we extracted the forward-backward charge asymmetry of the ${e}^{+}$${e}^{\mathrm{\ensuremath{-}}}$\ensuremath{\rightarrow}bb\ifmmode\bar\else\textasciimacron\fi{} process and the R ratio for bb\ifmmode\bar\else\textasciimacron\fi{} production. We used an analysis method in which the behavior of the c quark and lighter quarks is assumed, with only that of the b quark left indeterminate. The results, ${A}_{b}$=-0.72\ifmmode\pm\else\textpm\fi{}0.28(stat)\ifmmode\pm\else\textpm\fi{}0.13(syst) and ${R}_{b}$=0.57\ifmmode\pm\else\textpm\fi{}0.16\ifmmode\pm\else\textpm\fi{}0.10, are consistent with the standard model.
Published: 1989

16. Measurements of the e+e− total hadronic cross section and a determination of M Λ

Author: C. Rosenfeld, S. S. Myung, S. Trentalange, T. Nozaki, P. Perez, A. Bodek, H. Kagan, Kiyosumi Tsuchiya, A. T.M. Wang, Tsunehiko Omori, J. R. Smith, R. Coombes, K. Eguchi, T. Takeda, Gui Nyun Kim, A. Maki, R. Tanaka, Steve Schnetzer, Kazuo Abe, Yusuke Higashi, H. Miyata, Hiroyuki Sagawa, Dong-Chul Son, K. Gotow, D. Perticone, Kaori Maeshima, A. Bacala, J. S. Kang, Robert Stone, H. S. Budd, E. H. Low, W. Metcalf, K. Ueno, S. Sakamoto, K. Miyano, C. A. Fry, M. H. Lee, H. Itoh, R. Imlay, A. Murakami, E. J. Kim, F. Sannes, J. Li, S. Matsumoto, D. Blanis, Y. Sugimoto, K. Toyoshima, Hyunyong Kim, I. H. Park, J. Vinson, C. P. Cheng, S. Lusin, A. Abashian, E. H. Thorndike, J. Lim, T. Ishizuka, K. L. Sterner, Z. P. Mao, M. Frautschi, R. Chiba, T. Thomas, Yoshimasa Kurihara, H. Kozuka, H. Yokota, S. Igarashi, H. Harada, Rr Mcneil, N. M. Shaw, H. W. Zheng, S. K. Kim, H. Ichinose, F. Kajino, Y. Takaiwa, Y. C. Zhu, S. L. Olsen, R. L. Lander, R. L. Malchow, Yongsun Kim, R. D. Kass, T. Mori, C. G. Trahern, T. Kumita, L. E. Piilonen, Y. T. Xu, A. Sill, Y. K. Li, K. Ohta, Y. Sakai, Winston Ko, R. Poling, S. Kobayashi, Y. H. Ho, T. Sasaki, S. Wilson, Y. Fujii, James C. Green, F. Naito, K. Sparks, M. C.S. Williams, Sarah Catherine Eno, Susumu Terada, P. N. Kirk, Y. Yamashita, M. E. Mattson, and Y. Ishi
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Electron–positron annihilation, Hadron, Standard Model, Nuclear physics, Cross section (physics), High Energy Physics::Experiment, Nuclear Experiment, Scale parameter, Boson
Abstract: The total cross section for e + e − annihilation into hadrons has been measured for CM energies ranging from 50 to 57 GeV. We fit the predictions of the standard model to these measurements and those at lower energies. The mass of the Z 0 boson, M Z , and the QCD scale parameter, Λ MS , are derived from the fit. The results are M Z =88.6 −1.8 +2.0 GeV/ c 2 , and Λ MS =0.15 −0.11 +0.16 GeV .
Published: 1989

17. Aspects of duality in chiral field theories

Author: A. P. Balachandran, C. G. Trahern, V. P. Nair, and B.S. Skagerstam
Subjects: Quantum chromodynamics, Physics, Chiral anomaly, Field (physics), High Energy Physics::Lattice, High Energy Physics::Phenomenology, Duality (electricity and magnetism), Theoretical physics, Classical mechanics, Electromagnetism, Seiberg duality, Gauge theory, Quantum field theory, General Theoretical Physics
Abstract: The Abelian and non-Abelian gauge potentials A/sub munu/ are known to describe chiral fields. Here we study their interactions with dual extended objects. The region occupied by these objects is shown to behave like a distinct phase of chiral fields which is nondissipative under suitable geometric conditions. A method for the realization of the 't Hooft algebra in these systems is outlined. The concept of electric and magnetic duality in electromagnetism is generalized to chiral fields with values in a symmetric space.
Published: 1982

18. Search for Isolated Leptons in Low-Thruste+e−Annihilation Events ats=50 and 52GeV

Author: M. Frautschi, K. Eguchi, S. Lusin, W. Metcalf, M. Ogawa, I. H. Park, S. Ishimoto, K. Gotow, S. S. Myung, S. Sakamoto, S. Trentalange, Yusuke Higashi, A. Aldritch, M. Miyashita, Z. P. Mao, K. Toyoshima, H. Murata, S. K. Kim, H. Yokota, H. S. Zhou, T. Ishizuka, P. Perez, F. Sannes, H. Harada, Y. T. Xu, N. M. Shaw, Yasuhiro Sugimoto, J. S. Kang, E. H. Thorndike, R. Chiba, M. H. Lee, Hyunyong Kim, A. Murakami, K. Hanaoka, K. Ueno, H. Kagan, Kiyosumi Tsuchiya, R. Poling, A. Bodek, S. Kobayashi, Ryuki Tanaka, C. G. Trahern, T. Kumita, R. Coombes, S. Igarashi, Y. Yan, S. Matsumoto, Hiroyuki Sagawa, Tsunehiko Omori, James C. Green, F. Naito, Kazumasa Miyano, F. Kajino, T. Takeda, Y. Takaiwa, K. Sparks, R. Childers, M. C.S. Williams, D. Zimmerman, C. W. Darden, A. Maki, Y. Sakai, Sarah Catherine Eno, Susumu Terada, C. Rosenfeld, H. Asakura, D. Blanis, Takashi Sasaki, Steve Schnetzer, G. N. Kim, T. Mori, H. Miyata, Kazuo Abe, H. S. Budd, D. R. Johnson, P. N. Kirk, S. Wilson, J. Edwards, R. R. McNeil, A. Sill, Kaori Maeshima, Y. Yamashita, K. Ohta, Winston Ko, Y. Fujii, Yoshimasa Kurihara, A. Abashian, C. A. Fry, S. Chakrabarti, T. Maruta, R. L. Lander, Y. H. Ho, H. Itoh, T. Nozaki, Y. Ishi, E. J. Kim, Y. C. Zhu, S. L. Olsen, A. Bacala, Robert Stone, R. L. Imlay, C. P. Cheng, Dong-Chul Son, H. Kozuka, H. W. Zheng, Hoyun Lee, R. L. Malchow, Yongsun Kim, and R. D. Kass
Subjects: Physics, Quark, Particle physics, Annihilation, High Energy Physics::Phenomenology, General Physics and Astronomy, Thrust, Elementary particle, Fermion, Standard Model, Nuclear physics, Square root, High Energy Physics::Experiment, Lepton
Abstract: Multihadronic e/sup +/e/sup -/ annihilation events containing final-state leptons have been investigated with a 4.7-pb/sup -1/ data sample at c.m. energies of 50 and 52 GeV. The number of low-thrust events (Tless than or equal to0.8) with isolated leptons is consistent with the expectation of the standard model with five quark flavors. Limits on the production of new quarks and leptons are reported.
Published: 1988

19. Measurement of the Leptonic Branching Ratios of theϒ(1S),ϒ(2S), andϒ(3S)

Author: G. C. Moneti, D. Andrews, D. G. Cassel, Karl Berkelman, Sheldon Stone, N. B. Mistry, J. W. Dewire, S. Holzner, S. Behrends, M. D. Mestayer, C. J. Bebek, Y. Kubota, G. Parkhurst, E. H. Thorndike, M. Ogg, R. S. Panvini, K. Chadwick, W. W. MacKay, P. Ganci, F. M. Pipkin, A. Fridman, D. L. Kreinick, Jan M. Guida, Richard Wilson, J. Chauveau, Joan A. Guida, J. Kandaswamy, Ron Poling, T. Gentile, M. Halling, P. Lipari, L. Garren, F. Morrow, R. Wilcke, R. Plunkett, R. Ehrlich, D. Peterson, Robert Stone, R. Galik, M. Ito, Murdock Gilchriese, A. Snyder, B. Gittelman, R. T. Giles, N. Horwitz, M. Goldberg, M. S. Alam, R. D. Kass, C. Rosenfeld, M. Hempstead, D. Weber, T. Ferguson, D. L. Hartill, V. Kistiakowsky, A. Chen, R. Perchonok, C. G. Trahern, S. L. Olsen, G. Rucinski, F. Sannes, J. Hassard, A. Silverman, P. C. Stein, S. E. Csorna, A. Jawahery, D. Herrup, H. Kagan, J. Rohlf, James C. Green, P. Avery, K. Kinoshita, A. J. Sadoff, Joseph Izen, R. G. Hicks, A. C. Melissinos, E. Nordberg, M. Jibaly, H. Van Hecke, and P. Skubic
Subjects: Nuclear physics, Physics, Particle physics, Particle decay, Muon, Meson, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, Cornell Electron Storage Ring, Lepton
Abstract: Using the CLEO detector at the Cornell Electron Storage Ring, the authors have measured the leptonic branching fraction, B/sub mumu/, of the UPSILON(1S), UPSILON(2S), and UPSILON(3S) to be 2.7 +- 0.3 +- 0.3%, 1.9 +- 1.3 +- 0.5%, and 3.3 +- 1.3 +- 0.7%, respectively. Combining these values of B/sub mumu/ with previous measurements of the leptonic widths of these resonances, the authors find the total width of the UPSILON(1S), UPSILON(2S), and UPSILON(3S) to be 48 +- 4 +- 4, 27 +- 17 +- 6, and 13 +- 4 +- 3 keV.
Published: 1983

20. Measurements ofRand a Search for Heavy-Quark Production ine+e−Annihilation ats=50 and 52GeV

Author: T. Mori, K. Eguchi, R. Coombes, D. R. Johnson, Yusuke Higashi, F. T. Avignone, A. Sill, S. Igarashi, H. Itoh, E. H. Thorndike, M. Frautschi, K. Ohta, A. Bacala, Winston Ko, M. Miyashita, A. Maki, K. Hanaoka, D. Zimmerman, Robert Stone, S. S. Myung, S. Ishimoto, T. Nozaki, Rr Mcneil, C. G. Trahern, K. Gotow, S. Kobayashi, T. Maruta, Y. Sakai, Y. H. Ho, P. Perez, T. Kumita, Hyunyong Kim, T. Sasaki, C. P. Cheng, H. Yokota, H. Miyata, James C. Green, J. Edwards, Y. Yan, Ron Poling, F. Naito, J. S. Kang, Kiyosumi Tsuchiya, R. Imlay, D. Saroff, K. Sparks, F. Kajino, K. Toyoshima, S. Matsumoto, Z. P. Mao, Kazuo Abe, Dong-Chul Son, H. Murata, Hiroyuki Sagawa, Yoshimasa Kurihara, A. Abashian, Y. Fujii, K. Ueno, R. Childers, Y. C. Zhu, H. Harada, C. A. Fry, D. Blanis, S. Lusin, Sarah Catherine Eno, Kaori Maeshima, S. L. Olsen, Susumu Terada, Y. Sugimoto, H. S. Budd, M. Ogawa, C. Darden, A. Aldritch, K. Miyano, R. Chiba, R. L. Lander, G. N. Kim, H. Kagan, N. M. Shaw, S. Trentalange, M. C.S. Williams, C. Rosenfeld, I. H. Park, Steve Schnetzer, Tsunehiko Omori, H. S. Zhou, T. Ishizuka, Y. Takaiwa, A. Murakami, P. N. Kirk, Y. Yamashita, H. Kozuka, R. L. Malchow, Yongsun Kim, R. D. Kass, H. W. Zheng, H. Otsuki, Hoyun Lee, P. Mani, A. Bodek, H. Asakura, R. Tanaka, W. Metcalf, S. Sakamoto, S. K. Kim, F. Sannes, S. Wilson, T. Takeda, Y. Ishi, Y. T. Xu, E. J. Kim, W. Marterer, and S. Chakrabarti
Subjects: Elastic scattering, Physics, Quark, Nuclear physics, Particle physics, Annihilation, Electron–positron annihilation, Hadron, General Physics and Astronomy, Parton, Elementary particle, Bhabha scattering
Abstract: The R ratio for e/sup +/e/sup -/ annihilation into hadronic final states is measured to be 4.34 +- 0.45 +- 0.30 and 4.23 +- 0.20 +- 0.21 at c.m. energies of 50 and 52 GeV, respectively. From these values of R and an analysis of the event shapes we deduce a 95%-confidence-level upper limit for the production rate of new heavy charge +(2/3e or -(1/3e quarks to be 0.19 units of R.
Published: 1988

21. High-statistics study ofϒ(2S)→π+π−ϒ(1S)

Author: D. L. Hartill, Ron Poling, Y. Kubota, S. Holzner, S. Behrends, M. Goldberg, G. C. Moneti, Richard Wilson, R. Namjoshi, Paul Tipton, Joan A. Guida, J. Kandaswamy, D. G. Cassel, M. Hempstead, R. Wilcke, S. L. Olsen, Murdock Gilchriese, T. Gentile, B. Gittelman, L. Garren, W. W. MacKay, R. D. Kass, E. H. Thorndike, A. Chen, M. Ogg, H. Van Hecke, J. W. Dewire, F. M. Pipkin, F. Sannes, N. B. Mistry, R. Ehrlich, Jan M. Guida, C. Bebek, G. Parkhurst, M. D. Mestayer, M. S. Alam, D. Weber, R. S. Panvini, R. G. Hicks, Xia Yi, F. Morrow, Karl Berkelman, J. Hassard, A. Silverman, N. Horwitz, R. S. Galik, H. Kagan, M. Ito, J. Chauveau, M. Halling, R. T. Giles, A. C. Melissinos, A. J. Sadoff, C. G. Trahern, P. Avery, P. Haas, Robert Stone, D. Besson, P. C. Stein, S. E. Csorna, James C. Green, K. Kinoshita, C. Rosenfeld, P. Lipari, D. Peterson, T. Jensen, Sheldon Stone, K. Chadwick, E. Nordberg, T. Ferguson, P. Skubic, A. Jawahery, D. L. Kreinick, and A. Snyder
Subjects: Physics, Particle decay, Pion, Meson, Branching fraction, Electron–positron annihilation, Hadron, Analytical chemistry, Elementary particle, Cornell Electron Storage Ring
Abstract: A detailed investigation of the decay UPSILON(2S)..--> pi../sup +/..pi../sup -/UPSILON(1S) has been made from 128 000 UPSILON(2S) decays observed in the CLEO detector at the Cornell Electron Storage Ring (CESR). We find this branching ratio to be (19.1 +- 1.2 +- 0.6)%. The properties of the ..pi pi.. system have been studied using 491 exclusive events of the type UPSILON(2S)..--> pi../sup +/..pi../sup -/UPSILON(1S), UPSILON(1S)..-->..e/sup +/e/sup -/ or ..mu../sup +/..mu../sup -/. Assuming e-..mu.. universality we find B(UPSILON(1S)..--> mu../sup +/..mu../sup -/) = (2.84 +- 0.18 +- 0.20)%. A search for UPSILON(2S)..-->..etaUPSILON(1S) yields an upper limit of 1% at the 90% confidence level for this branching ratio. We have also searched for (UPSILON(2S) or UPSILON(3S))..--> pi../sup +/..pi../sup -/UPSILON(1S), UPSILON(1S)..-->..noninteracting particles.
Published: 1984

22. Search for unstable heavy neutral leptons ine+e−annihilations at√sfrom 50 to 60.8 GeV

Author: F. Naito, Kazumasa Miyano, K. Sparks, M. C.S. Williams, I. H. Park, K. Eguchi, S. Igarashi, K. Toyoshima, H. Murata, T. Ishizuka, H. Kagan, Y. C. Zhu, S. L. Olsen, L. E. Piilonen, Yusuke Higashi, Sarah Catherine Eno, Susumu Terada, Yasuhiro Sugimoto, R. L. Lander, M. Frautschi, Z. P. Mao, P. N. Kirk, Tsunehiko Omori, K. Gotow, Y. Fujii, E. H. Thorndike, H. Harada, J. Lim, Y. Yamashita, J. S. Kang, A. Abashian, Y. K. Li, A. Murakami, S. S. Myung, K. Hanaoka, Takashi Sasaki, R. L. Malchow, R. Poling, D. Blanis, P. Gu, S. Kobayashi, Yongsun Kim, C. Rosenfeld, K. Ueno, H. Asakura, R. D. Kass, Richard Breedon, H. Miyata, J. Vinson, James C. Green, J. R. Smith, Y. Sakai, H. W. Zheng, K. L. Sterner, K. Ohta, Winston Ko, T. Nozaki, Y. Ishi, Hyunyong Kim, S. Lusin, T. Kojima, R. Chiba, Hiroyuki Sagawa, E. J. Kim, Y. H. Ho, S. K. Kim, Alan Sill, S. Trentalange, D. Perticone, H. Ichinose, F. Kajino, D. H. Han, G. N. Kim, Dong-Chul Son, A. T.M. Wang, N. M. Shaw, H. S. Budd, Hideo Yokota, R. R. McNeil, Kiyosumi Tsuchiya, C. A. Fry, H. Itoh, M. E. Mattson, T. Yasuda, Kazuo Abe, J. Li, R. L. Imlay, A. Bodek, C. P. Cheng, Kaori Maeshima, T. Mori, Y. Yamagishi, Ryuki Tanaka, Y. Takaiwa, R. Coombes, A. Maki, Yoshimasa Kurihara, E. H. Low, R. C. Walker, Steve Schnetzer, T. L.T. Thomas, C. G. Trahern, T. Kumita, M. Ogawa, A. Bacala, Robert Stone, M. H. Lee, S. Matsumoto, W. Metcalf, S. Sakamoto, F. Sannes, K. P. Hu, S. Wilson, and Y. T. Xu
Subjects: Physics, Particle physics, Muon, Annihilation, High Energy Physics::Phenomenology, General Physics and Astronomy, Elementary particle, Fermion, Nuclear physics, Massless particle, High Energy Physics::Experiment, Neutrino, Boson, Lepton
Abstract: A search for unstable heavy neutral leptons has been made at center-of-mass energies from 50 to 60.8 GeV with the AMY detector at the KEK Storage ring TRISTAN. The neutral leptons are assumed to decay via mixing to electrons and muons. Events with two leptons were searched for. No evidence for their existence was found. Limits in the mass range \ensuremath{\le}28.1 GeV/${c}^{2}$ and mixing-parameter range 9\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}10}$\ensuremath{\le}\ensuremath{\Vert}${U}_{\mathrm{lL}}$${\ensuremath{\Vert}}^{2}$\ensuremath{\le}1 are presented for Dirac- and Majorana-type neutrinos.
Published: 1989

23. ΛcProduction frome+e−Annihilation in theϒEnergy Region

Author: Murdock Gilchriese, B. Gittelman, Jan M. Guida, M. Ito, D. Bartoletto, D. Peterson, Paul Tipton, Ron Poling, D. G. Cassel, R. S. Galik, Xia Yi, R. DeSalvo, Themistocles Bowcock, G. C. Moneti, R. D. Kass, C. Bebek, G. Parkhurst, Y. Kubota, D. Besson, R. S. Panvini, D. L. Hartill, A. Chen, P. Lubrano, F. Sannes, Richard Wilson, D. Perticone, S. Holzner, S. Behrends, James C. Green, E. H. Thorndike, A. M. Halling, T. Copie, J. W. Dewire, F. M. Pipkin, M. Goldberg, M. S. Alam, Thomas Ferguson, Robert Stone, C. Rosenfeld, G. B. Word, P. C. Stein, S. E. Csorna, H. Kagan, Alice Bean, Sheldon Stone, K. Kinoshita, M. D. Mestayer, C. G. Trahern, P. Avery, N. B. Mistry, R. Namjoshi, S. W. Gray, Joan A. Guida, J. Kandaswamy, F. Morrow, A. J. Sadoff, M. Hempstead, T. Gentile, P. Haas, M. Ogg, J. Hassard, A. Silverman, E. Nordberg, R. T. Giles, P. Skubic, N. Horwitz, A. Jawahery, H. Van Hecke, M. Pisharody, Karl Berkelman, Xu Kezun, B. K. Heltsley, Kenneth Francis Read, D. L. Kreinick, T. Jensen, L. Garren, and R. Ehrlich
Subjects: Physics, Particle physics, Annihilation, Meson, Branching fraction, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Lambda, Nuclear physics, Baryon, Particle decay, Pion, High Energy Physics::Experiment, Nuclear Experiment
Abstract: We have observed ..lambda../sub c/ baryons in nonresonant e/sup +/e/sup -/ annihilation at energies around ..sqrt..s = 10.5 GeV through their decay to ..lambda pi../sup +/..pi../sup +/..pi../sup -/. We measure the branching fraction to be (2.8 +- 0.7 +- 1.1)%. The momentum spectrum of the ..lambda../sub c/ is similar to that of charmed mesons, providing a constraint on models of charmed-quark hadronization.
Published: 1985

24. Production of Charmed Mesons ine+e−Annihilation at 10.5 GeV

Author: H. Kagan, M. D. Mestayer, Jan M. Guida, S. L. Olsen, D. Weber, Robert Stone, James C. Green, R. Plunkett, J. Hassard, A. Silverman, A. J. Sadoff, E. H. Thorndike, Richard Wilson, F. M. Pipkin, Xia Yi, A. C. Melissinos, J. Chauveau, H. Van Hecke, F. Morrow, P. Avery, T. Jensen, Karl Berkelman, W. W. MacKay, P. Ganci, M. Halling, D. L. Hartill, Ron Poling, Joan A. Guida, G. Rucinski, N. Horwitz, Y. Kubota, Sheldon Stone, R. S. Galik, R. S. Panvini, P. Lipari, D. Peterson, V. Kistiakowsky, C. G. Trahern, A. Jawahery, J. Kandaswamy, D. G. Cassel, E. Nordberg, M. S. Alam, M. Goldberg, G. C. Moneti, A. Chen, F. Sannes, J. W. Dewire, D. L. Kreinick, M. Hempstead, R. Wilcke, Murdock Gilchriese, Paul Tipton, R. Perchonok, B. Gittelman, C. Rosenfeld, M. Ito, A. Snyder, P. C. Stein, S. E. Csorna, R. T. Giles, P. Skubic, K. Kinoshita, R. D. Kass, T. Gentile, M. Ogg, L. Garren, R. Ehrlich, N. B. Mistry, R. G. Hicks, C. Bebek, G. Parkhurst, K. Chadwick, T. Ferguson, D. Herrup, S. Holzner, and S. Behrends
Subjects: Quark, Physics, Particle physics, Annihilation, Meson, Electron–positron annihilation, Nuclear Theory, High Energy Physics::Phenomenology, General Physics and Astronomy, Resonance (particle physics), Nuclear physics, Momentum, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, Energy (signal processing)
Abstract: A measurement is presented of the inclusive production of charged ${D}^{*}$ and neutral $D$ mesons from nonresonant ${e}^{+}{e}^{\ensuremath{-}}$ annihilation in the energy region near the $\ensuremath{\Upsilon}(4S)$ resonance. The momentum distribution shows a large contribution at high momenta as expected for heavy quark production. Comparison of the spectrum with several phenomenological models is made. The relative yields of the ${D}^{*}$ and $D$ mesons indicate that the charm cross section is dominated by the ${D}^{*}$ contribution.
Published: 1983

25. Observation of the decay B¯D+0ρ−

Author: Xia Yi, M. S. Alam, Robert Stone, Xu Kezun, Joan A. Guida, J. Kandaswamy, A. Jawahery, L. Garren, M. Halling, M. D. Mestayer, C. G. Trahern, R. T. Giles, R. Ehrlich, D. Peterson, D. L. Kreinick, M. Ito, P. Skubic, P. C. Stein, C. Bebek, G. Parkhurst, D. Besson, P. Avery, Kenneth Francis Read, S. E. Csorna, E. H. Thorndike, A. Chen, F. M. Pipkin, M. Goldberg, P. Haas, N. B. Mistry, F. Sannes, Karl Berkelman, G. C. Moneti, T. Ferguson, R. Namjoshi, K. Kinoshita, C. Rosenfeld, D. Perticone, S. Holzner, R. S. Galik, Sheldon Stone, S. Behrends, M. Ogg, And H. Van Hecke, R. D. Kass, N. Horwitz, Paul Tipton, R. DeSalvo, E. Nordberg, D. L. Hartill, Ron Poling, M. Hempstead, W. W. MacKay, H. Kagan, Richard Wilson, A. J. Sadoff, J. Hassard, A. Silverman, D. G. Cassel, T. Copie, J. W. Dewire, T. Jensen, Jan M. Guida, Y. Kubota, Murdock Gilchriese, B. Gittelman, R. S. Panvini, F. Morrow, T. Gentile, and James C. Green
Subjects: Physics, Particle physics, Particle decay, Pair production, Pion, Meson, Branching fraction, Hadron, Elementary particle, B meson
Abstract: The decay B-bar /sup 0/..-->..D/sup asterisk+/rho/sup -/ has been observed and the branching ratio is found to be (8.1 +- 2.9/sub -2.4//sup +5.9/)%. The result is compared with theoretical predictions.
Published: 1985

26. Comparison of quark and gluon jets produced in high-energye+e−annihilations

Author: H. W. Zheng, E. H. Thorndike, J. Lim, W. Metcalf, D. Blanis, H. Miyata, R. R. McNeil, Dong-Chul Son, Y. Ishi, P. Auchincloss, E. J. Kim, K. L. Sterner, Hideo Yokota, K. Toyoshima, C. A. Fry, P. Gu, T. Yasuda, F. Sannes, Takashi Sasaki, H. Itoh, K. P. Hu, A. Bacala, J. Li, S. S. Myung, Robert Stone, Y. Sugimoto, R. L. Imlay, S. Lusin, Y. Sakai, M. C.S. Williams, J. S. Kang, C. P. Cheng, Yusuke Higashi, T. Mori, Kazumasa Miyano, Tsunehiko Omori, P. N. Kirk, S. Wilson, T. Kojima, Hyunyong Kim, K. Ohta, Winston Ko, Sarah Catherine Eno, J. R. Smith, Susumu Terada, Y. Yamashita, S. Kobayashi, Y. Fujii, S. K. Kim, Y. H. Ho, L. E. Piilonen, T. Nozaki, Hiroyuki Sagawa, Yoshimasa Kurihara, F. Kajino, A. Abashian, A. Maki, C. G. Trahern, Alan Sill, David Stuart, T. Kumita, Y. K. Li, A. Murakami, D. H. Han, Z. P. Mao, G. N. Kim, R. Poling, R. L. Malchow, H. S. Budd, R. C. Walker, Richard Breedon, Steve Schnetzer, H. Harada, E. H. Low, M. E. Mattson, Y. C. Zhu, S. L. Olsen, K. Gotow, D. Perticone, Yongsun Kim, J. Vinson, R. D. Kass, Y. T. Xu, T. L.T. Thomas, M. H. Lee, A. T.M. Wang, N. M. Shaw, S. Matsumoto, K. Ueno, I. H. Park, Y. Takaiwa, T. Ishizuka, Kazuo Abe, R. L. Lander, M. Frautschi, Kaori Maeshima, Y. Yamagishi, H. Kagan, C. Rosenfeld, R. Tanaka, and A. Bodek
Subjects: Physics, Quark, Quantum chromodynamics, Particle physics, Annihilation, High Energy Physics::Lattice, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, High Energy Physics::Phenomenology, General Physics and Astronomy, Elementary particle, Parton, Jet (particle physics), Particle identification, Gluon, Nuclear physics, High Energy Physics::Experiment
Abstract: Three-jet events produced in {ital e}{sup +}e{sup {minus}} annihilations are used to provide comparisons between quark and gluon jets. Differences between quark-induced and gluon-induced jets are observed. Quark jets tend to have a more tightly collimated structure than gluon jets, which is reflected in the concentration of a larger fraction of the jet's energy near the jet axis.
Published: 1989

27. A search for the ρ(2.2) in the ϒ region

Author: H. Van Hecke, Xia Yi, J. Chauveau, M. Halling, C. G. Trahern, K. Chadwick, Karl Berkelman, Richard Wilson, E. H. Thorndike, P. Lipari, F. M. Pipkin, J. W. Dewire, James C. Green, T. Ferguson, F. Morrow, R. S. Panvini, A. Snyder, D. Besson, D. Peterson, C. Rosenfeld, L. Garren, R. G. Hicks, P. Haas, E. Nordberg, R. Wilcke, Robert Stone, P. Avery, R. D. Kass, Murdock Gilchriese, A. C. Melissinos, R. S. Galik, R. Ehrlich, D. L. Hartill, P. Skubic, Jan M. Guida, Ron Poling, M. D. Mestayer, B. Gittelman, A. Chen, N. Horwitz, D. Weber, W. W. MacKay, F. Sannes, C. Bebek, G. Parkhurst, D. G. Cassel, Y. Kubota, J. Hassard, A. Silverman, T. Gentile, N. B. Mistry, A. Jawahery, M. S. Alam, S. L. Olsen, M. Hempstead, M. Ogg, Joan A. Guida, J. Kandaswamy, M. Goldberg, G. C. Moneti, P. C. Stein, S. E. Csorna, H. Kagan, R. T. Giles, A. J. Sadoff, K. Kinoshita, Sheldon Stone, M. Ito, S. Holzner, S. Behrends, Paul Tipton, R. Namjoshi, T. Jensen, and D. L. Kreinick
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Theoretical physics, Theoretical models, Higgs boson, B meson
Abstract: We have searched in the decays of the ϒ(1S), ϒ(2S) and B mesons for the narrow state, γ, seen by the Mark II group in radiative ψ decay. We find the product branching fractions B[ϒ(1S) → γγ]·B[γ → K+K−], B[ϒ(2S) → γ γ]· B[γ → K+K−] and B[B → γX]·B[γ → K+K−] to be less than 2×10−4, 9×10−5 and 3×10−3, respectively at 90% confidence level. These limits constrain theoretical models if the γ is interpreted as a Higgs boson.
Published: 1984

28. Total cross section for electron-positron annihilation into hadron final states in the upsilon energy region

Author: Ron Poling, Harris Kagan, R. S. Galik, Y. Kubota, P. Avery, M. Hempstead, R. Perchonok, A. Jawahery, Robert Stone, Sheldon Stone, R. D. Kass, Murdock Gilchriese, J. W. Dewire, K. Chadwick, B. Gittelman, G. Rucinski, E. H. Thorndike, R. T. Giles, H. Van Hecke, L. Garren, G. C. Moneti, A. C. Melissinos, F. M. Pipkin, C. Bebek, M. Ogg, T. Gentile, G. Parkhurst, T. Ferguson, P. Skubic, Karl Berkelman, A. J. Sadoff, R. Ehrlich, F. Morrow, P. Lipari, Jan M. Guida, N. Horwitz, Xia Yi, A. Chen, W. W. MacKay, D. Weber, F. Sannes, P. Ganci, D. L. Kreinick, M. Ito, R. G. Hicks, Paul Tipton, J. Hassard, M. S. Alam, D. Peterson, S. L. Olsen, D. Herrup, A. Silverman, R. Plunkett, D. G. Cassel, D. L. Hartill, R. Wilcke, M. Goldberg, E. Nordberg, James C. Green, Richard Wilson, T. Jensen, S. Holzner, S. Behrends, R. Namjoshi, M. D. Mestayer, J. Chauveau, M. Halling, C. G. Trahern, P. Haas, D. Besson, R. S. Panvini, A. Snyder, P. C. Stein, S. E. Csorna, Joan A. Guida, J. Kandaswamy, C. Rosenfeld, K. Kinoshita, and N. B. Mistry
Subjects: Nuclear physics, Physics, Particle physics, Particle decay, Muon, Meson, Electron–positron annihilation, Production (computer science), Continuum (set theory), Cornell Electron Storage Ring, Energy (signal processing)
Abstract: We report measurements made with the CLEO detector at the Cornell Electron Storage Ring (CESR) of the total cross section for ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\mathrm{hadrons}$ at the $\ensuremath{\Upsilon}(1S)$, $\ensuremath{\Upsilon}(2S)$, and $\ensuremath{\Upsilon}(3S)$, and in the nearby nonresonant continuum. We find $R=3.77\ifmmode\pm\else\textpm\fi{}0.06 (\mathrm{statistical}) \ifmmode\pm\else\textpm\fi{} 0.24 (\mathrm{systematic})$ for the ratio of the nonresonant hadronic cross section to the cross section for muon-pair production at a center-of-mass total energy $W=10.4$ GeV. For the leptonic decay widths ${\ensuremath{\Gamma}}_{\mathrm{ee}}$ of the $\ensuremath{\Upsilon}(1S)$, $\ensuremath{\Upsilon}(2S)$, and $\ensuremath{\Upsilon}(3S)$ we obtain 1.30\ifmmode\pm\else\textpm\fi{}0.05\ifmmode\pm\else\textpm\fi{}0.08, 0.52\ifmmode\pm\else\textpm\fi{}0.03\ifmmode\pm\else\textpm\fi{}0.04, and 0.42\ifmmode\pm\else\textpm\fi{}0.04\ifmmode\pm\else\textpm\fi{}0.03 keV, respectively.
Published: 1984

29. Generalized Bohr-Sommerfeld rules for anomalies with applications to symmetry breakdown and decoupling

Author: C. G. Trahern, A. P. Balachandran, and V. P. Nair
Subjects: Quantum chromodynamics, Physics, Chiral perturbation theory, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Quark model, Lie group, Symmetry group, Bohr model, Theoretical physics, symbols.namesake, Quantum mechanics, symbols, Symmetry breaking, Quantum field theory
Abstract: In the presence of anomalies, the requirement that a classical symmetry group $G$ has a proper action on the fermion measure or in the effective Lagrangian description imposes Bohr-Sommerfeld conditions on the anomalies, and often implies that $G$ is broken to a subgroup $H$ as well. We show these results in this paper and apply them to QCD and SU(5). In particular, constraints on the QCD order parameter are derived, and an argument is presented which suggests that the breakdown of the chiral flavor symmetry and the emergence of some sort of generation structure in QCD may be natural.
Published: 1983

30. Two-body decays ofBmesons

Author: J. W. Dewire, A. Chen, F. Sannes, K. Chadwick, P. Lipari, C. Bebek, G. Parkhurst, T. Ferguson, M. D. Mestayer, N. Horwitz, Xia Yi, A. Jawahery, D. Peterson, Ron Poling, H. Van Hecke, Robert Stone, G. C. Moneti, M. Hempstead, L. Garren, Joan A. Guida, J. Kandaswamy, P. C. Stein, R. Ehrlich, S. E. Csorna, P. Avery, Karl Berkelman, F. Morrow, T. Jensen, K. Kinoshita, M. S. Alam, M. Ito, A. J. Sadoff, S. L. Olsen, P. Skubic, E. H. Thorndike, N. B. Mistry, F. M. Pipkin, P. Haas, A. Snyder, J. Hassard, A. Silverman, R. T. Giles, R. Namjoshi, M. Ogg, R. D. Kass, Xu Kezun, Richard Wilson, T. Gentile, E. Nordberg, R. Wilcke, Kenneth Francis Read, D. L. Hartill, D. L. Kreinick, Paul Tipton, S. Holzner, S. Behrends, Harris Kagan, James C. Green, Sheldon Stone, W. W. MacKay, A. C. Melissinos, M. E. Hejazifar, M. Goldberg, J. Chauveau, M. Halling, C. G. Trahern, C. Rosenfeld, D. Besson, R. S. Panvini, Jan M. Guida, Murdock Gilchriese, B. Gittelman, R. S. Galik, Y. Kubota, and D. G. Cassel
Subjects: Nuclear physics, Physics, Particle physics, Electron–positron annihilation, B meson, Charm (quantum number)
Published: 1984

31. Search for non-minimal Higgs production in e+e− annihilations at

Author: W. Metcalf, Yusuke Higashi, Robert Stone, M. C.S. Williams, E. H. Thorndike, R. Tanaka, T. Nozaki, E. H. Low, J. Lim, S. Lusin, A. Bacala, T. Thomas, A. Murakami, H. Miyata, Kazuo Abe, M. E. Mattson, F. Sannes, Hiroyuki Sagawa, Y. Ishi, K. P. Hu, P. Gu, Kaori Maeshima, Y. Yamagishi, P. N. Kirk, J. R. Smith, Hyunyong Kim, N. M. Shaw, Y. Yamashita, H. S. Budd, R. L. Malchow, Tsunehiko Omori, D. H. Han, Yongsun Kim, R. D. Kass, G. N. Kim, K. Gotow, David Stuart, Y. Takaiwa, Dong-Chul Son, A. Bodek, C. A. Fry, A. Abashian, C. Rosenfeld, E. J. Kim, H. Itoh, K. Toyoshima, A. Maki, Takashi Sasaki, Y. C. Zhu, S. L. Olsen, Yoshimasa Kurihara, R. Imlay, L. E. Piilonen, C. G. Trahern, M. H. Lee, T. Kumita, J. Li, A. T.M. Wang, S. Matsumoto, C. P. Cheng, R. C. Walker, Steve Schnetzer, Y. Sakai, A. Sill, S. S. Myung, H. W. Zheng, T. Mori, K. Ohta, Winston Ko, Y. Fujii, S. Kobayashi, Y. H. Ho, D. Blanis, K. L. Sterner, Rr Mcneil, S. K. Kim, F. Kajino, M. Frautschi, Y. T. Xu, H. Yokota, S. Wilson, Y. Sugimoto, T. Kojima, T. Yasuda, H. Kagan, Z. P. Mao, H. Harada, Richard Breedon, J. Vinson, R. L. Lander, P. Auchincloss, I. H. Park, T. Ishizuka, D. Perticone, J. S. Kang, K. Ueno, Kazumasa Miyano, K. Sparks, Sarah Catherine Eno, Susumu Terada, and R. Poling
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, Higgs boson, Production (economics)
Published: 1989

32. Is the effective Lagrangian for quantum chromodynamics aσmodel?

Author: Carl Rosenzweig, C. G. Trahern, and Joseph Schechter
Subjects: Physics, Quantum chromodynamics, Instanton, Sigma model, Vacuum angle, High Energy Physics::Lattice, Quantum mechanics, High Energy Physics::Phenomenology, Elementary particle, Gauge theory, Quantum field theory, Gluon field, Mathematical physics
Abstract: A fully interacting effective chiral Lagrangian obeying the anomalous axial-baryon-current conservation law is constructed. This Lagrangian is a generalization of one implied by the $\frac{1}{N}$ approximation. In a certain sense, the old $\ensuremath{\sigma}$ model is recovered. Our Lagrangian displays the dependence of amplitudes on the quantum-chromodynamic vacuum angle $\ensuremath{\theta}$, gives soft ${\ensuremath{\eta}}^{\ensuremath{'}}$ theorems, and hints at a possible complementarity between the instanton and $\frac{1}{N}$ approaches. We can rewrite our model in terms of a gauge-invariant gluon field.
Published: 1980

33. Observation of Exclusive Decay Modes ofb-Flavored Mesons

Author: Ron Poling, E. H. Thorndike, F. M. Pipkin, Y. Kubota, V. Kistiakowsky, M. Hempstead, D. Herrup, D. L. Kreinick, J. Rohlf, C. Rosenfeld, Karl Berkelman, D. G. Cassel, J. Chauveau, A. Snyder, M. S. Alam, M. Halling, R. G. Hicks, D. Weber, Richard Wilson, A. J. Sadoff, M. Ogg, R. Wilcke, Murdock Gilchriese, P. Lipari, S. L. Olsen, J. Hassard, A. Silverman, B. Gittelman, L. Garren, R. S. Panvini, D. Peterson, R. Plunkett, K. Chadwick, G. Rucinski, N. Horwitz, R. Galik, R. Perchonok, R. T. Giles, R. Ehrlich, F. Morrow, A. Chen, J. W. Dewire, Jan M. Guida, F. Sannes, Joseph Izen, T. Ferguson, A. Jawahery, P. Avery, S. Holzner, S. Behrends, M. Ito, R. D. Kass, Joan A. Guida, J. Kandaswamy, A. C. Melissinos, D. Andrews, E. Nordberg, M. Jibaly, H. Van Hecke, P. Skubic, G. C. Moneti, Sheldon Stone, D. L. Hartill, N. B. Mistry, C. G. Trahern, James C. Green, P. C. Stein, S. E. Csorna, K. Kinoshita, M. D. Mestayer, Robert Stone, C. Bebek, G. Parkhurst, Harris Kagan, T. Gentile, W. W. MacKay, Richard Talman, P. Ganci, and M. Goldberg
Subjects: Nuclear physics, Physics, Particle decay, Particle physics, Pion, Meson, Electron–positron annihilation, Hadron, General Physics and Astronomy, Invariant mass, Elementary particle, Boson
Abstract: $B$-meson decays to final states consisting of a ${D}^{0}$ or ${D}^{*\ifmmode\pm\else\textpm\fi{}}$ and one or two charged pions have been observed. The charged-$B$ mass is 5270.8 \ifmmode\pm\else\textpm\fi{} 2.3 \ifmmode\pm\else\textpm\fi{} 2.0 MeV and the neutral-$B$ mass is 5274.2 \ifmmode\pm\else\textpm\fi{} 1.9 \ifmmode\pm\else\textpm\fi{} 2.0 MeV.
Published: 1983

34. Hyperon Production ine+e−Interactions in the Upsilon Region

Author: Y. Kubota, D. G. Cassel, H. Kagan, D. L. Hartill, Ron Poling, M. Hempstead, M. S. Alam, M. Goldberg, A. J. Sadoff, G. C. Moneti, Murdock Gilchriese, C. Rosenfeld, L. Garren, B. Gittelman, Robert Stone, D. L. Kreinick, Jan M. Guida, D. Weber, R. Wilcke, R. S. Panvini, Paul Tipton, J. W. Dewire, K. Chadwick, R. Ehrlich, P. Avery, F. Morrow, N. Horwitz, D. Besson, J. Hassard, A. Silverman, T. Ferguson, James C. Green, M. D. Mestayer, S. L. Olsen, C. Bebek, G. Parkhurst, A. Jawahery, A. Chen, F. Sannes, J. Chauveau, M. Ito, R. G. Hicks, A. C. Melissinos, H. Van Hecke, M. Halling, E. H. Thorndike, T. Jensen, C. G. Trahern, F. M. Pipkin, M. Ogg, R. T. Giles, Karl Berkelman, Xia Yi, T. Gentile, R. S. Galik, P. Lipari, P. C. Stein, S. E. Csorna, D. Peterson, Richard Wilson, K. Kinoshita, P. Haas, P. Skubic, N. B. Mistry, Joan A. Guida, J. Kandaswamy, A. Snyder, E. Nordberg, R. D. Kass, Sheldon Stone, S. Holzner, S. Behrends, W. W. MacKay, M. E. Hejazifar, and R. Namjoshi
Subjects: Baryon, Nuclear physics, Physics, Particle physics, Annihilation, Meson, Electron–positron annihilation, Hadron, Hyperon, General Physics and Astronomy, Lambda, Gluon
Abstract: We report measurements from CLEO detector of the rate of ..xi.. and ..lambda.. production in e/sup +/e/sup -/ interactions in the upsilon region. Hyperon production from the decay of the UPSILON(1S) is compared with continuum e/sup +/e/sup -/ data. The ratio of the production rates of ..lambda.. (and Lambda-bar) to K/sup 0/ (and K-bar /sup 0/) on the UPSILON(1S) is 0.21 +- 0.03, much larger than in the continuum, 0.07 +- 0.01. The ratios of the production rates of the ..xi.. and the ..lambda.. are comparable, 0.10 +- 0.02 (UPSILON(1S)) and 0.07 +- 0.02 (continuum). We discuss some implications of the data for gluon and quark fragmentation models.
Published: 1984

35. Measurement of the Direct Photon Spectrum from theϒ(1S)

Author: D. Riley, T. Copie, R. DeSalvo, Joan A. Guida, J. Kandaswamy, Ian Brock, M. Hempstead, R. Kowalewski, G. C. Moneti, V. Tanikella, N. B. Mistry, C. G. Trahern, C. Bebek, R.B. Sutton, E. Blucher, E. H. Thorndike, B. K. Heltsley, Ron Poling, Kenneth Francis Read, I. J. Kim, F. M. Pipkin, Sheldon Stone, Xia Yi, P. C. Stein, S. E. Csorna, P. Haas, J. Hassard, A. Silverman, Paul Avery, P. Lubrano, T. J. V. Bowcock, A. Jawahery, K. Kinoshita, M. Ogg, Daniela Bortoletto, M. Ito, M. Pisharody, Karl Berkelman, F. Morrow, H. Kagan, Hans J. Vogel, Alice Bean, T. Gentile, J. W. Dewire, M. D. Mestayer, Richard Wilson, N. Horwitz, A. M. Halling, L. Garren, R. T. Giles, Robert Stone, D. L. Hartill, R. Namjoshi, A. J. Sadoff, D. L. Kreinick, D. Peterson, C. Rippich, T. Jensen, R. Kraemer, S. W. Gray, N. Katayama, M. Goldberg, E. Nordberg, G. J. Bobbink, D. Perticone, S. Holzner, S. Behrends, James C. Green, R. Ehrlich, D. Besson, C. Rosenfeld, A. Chen, M. S. Alam, R. D. Kass, F. Sannes, Chih-Ree Sun, James Mueller, Jan M. Guida, Paul Tipton, D. G. Cassel, A. Engler, R. S. Galik, Y. Kubota, Thomas Ferguson, Murdock Gilchriese, B. Gittelman, R. S. Panvini, and G. B. Word
Subjects: Nuclear physics, Physics, Photon, Electron–positron annihilation, Quantum electrodynamics, Spectrum (functional analysis), General Physics and Astronomy
Published: 1986

36. Evidence for theFMeson at 1970 MeV

Author: J. Chauveau, C. Rosenfeld, Richard Wilson, Karl Berkelman, V. Kistiakowsky, Joan A. Guida, J. Kandaswamy, A. Jawahery, D. G. Cassel, R. S. Panvini, D. L. Hartill, D. L. Kreinick, E. Nordberg, H. Van Hecke, R. Wilcke, N. Horwitz, A. Chen, Murdock Gilchriese, F. Sannes, D. Weber, A. Snyder, P. Skubic, A. J. Sadoff, B. Gittelman, S. L. Olsen, James C. Green, T. Gentile, J. Hassard, A. Silverman, M. D. Mestayer, Xia Yi, R. Plunkett, Ron Poling, E. H. Thorndike, M. Ogg, F. M. Pipkin, P. Lipari, M. S. Alam, H. Halling, D. Peterson, D. Herrup, J. W. Dewire, Y. Kubota, L. Garren, Jan M. Guida, R. G. Hicks, R. Ehrlich, M. Hempstead, P. Avery, Paul Tipton, A. C. Melissinos, N. B. Mistry, R. Perchonok, K. Chadwick, C. G. Trahern, F. Morrow, P. C. Stein, S. E. Csorna, T. Ferguson, K. Kinoshita, R. T. Giles, R. Galik, Harris Kagan, G. C. Moneti, S. Holzner, S. Behrends, W. W. MacKay, R. D. Kass, P. Ganci, Sheldon Stone, M. Goldberg, C. Bebek, G. Parkhurst, M. Ito, Robert Stone, and G. Rucinski
Subjects: Physics, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, Elementary particle, Nuclear physics, Particle decay, Pion, High Energy Physics::Experiment, Continuum (set theory), Nuclear Experiment
Abstract: Evidence is presented for a narrow meson resonance of mass 1970\ifmmode\pm\else\textpm\fi{}5\ifmmode\pm\else\textpm\fi{}5 MeV produced in continuum ${e}^{+}{e}^{\ensuremath{-}}$ annihilations at $\sqrt{s}$ of 10.5 GeV, and decaying into a $\ensuremath{\phi}$ and a charged $\ensuremath{\pi}$.
Published: 1983

37. Experimental evidence for the non-Abelian nature of QCD from a study of multijet events produced ine+e−annihilation

Author: W. Metcalf, I. H. Park, S. Sakamoto, T. Ishizuka, F. Naito, Kazumasa Miyano, F. Sannes, K. Sparks, K. Toyoshima, Y. C. Zhu, S. L. Olsen, Hiroyuki Sagawa, T. Mori, C. G. Trahern, T. Kumita, R. Coombes, R. R. McNeil, L. E. Piilonen, E. H. Thorndike, Sarah Catherine Eno, Susumu Terada, J. Lim, J. Li, T. Takeda, Alan Sill, R. Chiba, M. C.S. Williams, J. S. Kang, S. K. Kim, H. Kagan, S. Igarashi, H. Ichinose, J. Vinson, H. Miyata, R. L. Imlay, F. Kajino, Y. K. Li, A. Murakami, S. Kobayashi, M. H. Lee, H. S. Budd, P. N. Kirk, C. A. Fry, S. S. Myung, R. Poling, D. Blanis, C. P. Cheng, Y. Yamashita, H. Itoh, M. E. Mattson, K. Eguchi, Y. Sakai, Hideo Yokota, James C. Green, Yusuke Higashi, A. Maki, S. Lusin, K. L. Sterner, K. Ohta, Winston Ko, Yoshimasa Kurihara, A. Bacala, Y. H. Ho, Tsunehiko Omori, Robert Stone, Kazuo Abe, G. N. Kim, N. M. Shaw, Dong-Chul Son, J. R. Smith, Kaori Maeshima, Ryuki Tanaka, S. Matsumoto, Y. Takaiwa, S. Trentalange, D. Perticone, E. H. Low, P. Perez, T. L.T. Thomas, Kiyosumi Tsuchiya, A. T.M. Wang, Z. P. Mao, A. Abashian, Steve Schnetzer, H. Harada, R. L. Lander, M. Frautschi, Hyunyong Kim, K. Gotow, S. Wilson, K. Ueno, R. L. Malchow, Yongsun Kim, R. D. Kass, Y. T. Xu, H. Kozuka, T. Nozaki, Y. Ishi, H. W. Zheng, E. J. Kim, Takashi Sasaki, Y. Fujii, Yasuhiro Sugimoto, A. Bodek, and C. Rosenfeld
Subjects: Physics, Quantum chromodynamics, Coupling constant, Particle physics, Annihilation, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Elementary particle, Nuclear physics, High Energy Physics::Experiment, Production (computer science), Abelian group
Abstract: We present evidence for the non-Abelian nature of QCD from a study of multijet events produced in ${e}^{+}$${e}^{\mathrm{\ensuremath{-}}}$ annihilations from \ensuremath{\surd}s =50 to 57 GeV in the AMY detector at the KEK storage ring TRISTAN. A comparison of the three-jet event fraction at TRISTAN to the fraction of the DESY storage ring PETRA shows that the QCD coupling strength ${\ensuremath{\alpha}}_{s}$ decreases with increasing ${Q}^{2}$. In addition, measurements of the angular distributions of four-jet events show evidence for the triple-gluon vertex.
Published: 1989

38. D0Spectrum fromB-Meson Decay

Author: Robert Stone, Xia Yi, D. G. Cassel, C. G. Trahern, P. C. Stein, S. E. Csorna, N. Horwitz, H. Kagan, J. Chauveau, K. Kinoshita, S. L. Olsen, M. Halling, R. Plunkett, E. H. Thorndike, A. Jawahery, F. M. Pipkin, D. Weber, A. J. Sadoff, J. Hassard, Ron Poling, Y. Kubota, C. Bebek, G. Parkhurst, A. Snyder, A. Silverman, Karl Berkelman, A. C. Melissinos, Jan M. Guida, A. Chen, L. Garren, F. Sannes, K. Chadwick, M. Hempstead, D. Herrup, D. L. Kreinick, D. Andrews, S. Holzner, S. Behrends, R. Ehrlich, M. Ogg, P. Skubic, C. Rosenfeld, M. Ito, M. S. Alam, T. Ferguson, M. D. Mestayer, R. Wilcke, Murdock Gilchriese, P. Lipari, P. Avery, R. S. Panvini, B. Gittelman, R. Perchonok, R. Galik, D. Peterson, N. B. Mistry, E. Nordberg, M. Jibaly, H. Van Hecke, Joan A. Guida, D. L. Hartill, J. Kandaswamy, F. Morrow, V. Kistiakowsky, R. D. Kass, R. G. Hicks, James C. Green, G. Rucinski, T. Gentile, Sheldon Stone, R. T. Giles, G. C. Moneti, J. W. Dewire, M. Goldberg, W. W. MacKay, P. Ganci, and Richard Wilson
Subjects: Physics, Quark, Semileptonic decay, Meson, Branching fraction, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, General Physics and Astronomy, Nuclear physics, Particle decay, Pion, High Energy Physics::Experiment, B meson, Nuclear Experiment
Abstract: The inclusive branching fraction for B-meson decay into D/sup 0/ mesons and the momentum spectrum of the D/sup 0/'s have been measured. 0.8 +- 0.2 +- 0.2 D/sup 0/ per B decay was found. The shape of the spectrum suggests an interesting picture of B-meson decay.
Published: 1983

39. DecayB→ψX

Author: P. Haas, M. Hempstead, T. Jensen, H. Kagan, R. Kass, S. Behrends, T. Gentile, Jan M. Guida, Joan A. Guida, F. Morrow, R. Poling, C. Rosenfeld, E. H. Thorndike, P. Tipton, D. Besson, J. Green, R. Namjoshi, F. Sannes, P. Skubic, R. Stone, D. Bortoletto, A. Chen, M. Goldberg, N. Horwitz, A. Jawahery, P. Lubrano, G. C. Moneti, C. G. Trahern, H. van Hecke, S. E. Csorna, L. Garren, M. D. Mestayer, R. S. Panvini, G. B. Word, Xia Yi, M. S. Alam, A. Bean, T. Ferguson, P. Avery, C. Bebek, K. Berkelman, E. Blucher, D. G. Cassel, T. Copie, R. DeSalvo, J. W. DeWire, R. Ehrlich, R. S. Galik, M. G. D. Gilchriese, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, S. Holzner, M. Ito, J. Kandaswamy, D. L. Kreinick, Y. Kubota, N. B. Mistry, E. Nordberg, M. Ogg, D. Peterson, D. Perticone, M. Pisharody, K. Read, A. Silverman, P. C. Stein, S. Stone, Xu Kezun, A. J. Sadoff, T. Bowcock, R. T. Giles, J. Hassard, K. Kinoshita, F. M. Pipkin, and Richard Wilson
Subjects: Physics, Muon, Meson, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, Nuclear physics, Pair production, High Energy Physics::Experiment, B meson, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment, Astrophysics::Galaxy Astrophysics, Lepton
Abstract: We have measured the inclusive branching ratio for B..-->..psiX to be (1.10 +- 0.21 +- 0.23)%. The momentum distribution of the psi mesons suggests a significant fraction of two-body decays.
Published: 1985

40. Inclusive Decay ofBMesons into ChargedD*

Author: P. Avery, J. W. Dewire, T. Copie, D. L. Kreinick, C. Bebek, G. Parkhurst, Harris Kagan, W. W. MacKay, E. Nordberg, Xu Kezun, R. T. Giles, J. Hassard, Richard Wilson, Robert Stone, L. Garren, M. D. Mestayer, A. Silverman, D. G. Cassel, T. Jensen, R. Ehrlich, R. D. Kass, A. Chen, M. Ogg, Joan A. Guida, F. Morrow, J. Kandaswamy, F. Sannes, P. Skubic, R. S. Galik, M. S. Alam, T. Ferguson, Y. Kubota, T. Gentile, Kenneth Francis Read, A. Jawahery, Jan M. Guida, Murdock Gilchriese, B. Gittelman, E. H. Thorndike, Sheldon Stone, M. Goldberg, N. B. Mistry, N. Horwitz, F. M. Pipkin, Paul Tipton, P. Haas, H. Van Hecke, Karl Berkelman, P. C. Stein, S. E. Csorna, K. Kinoshita, D. Peterson, M. Halling, R. Namjoshi, C. G. Trahern, D. Perticone, S. Holzner, S. Behrends, M. Ito, R. DeSalvo, G. C. Moneti, D. L. Hartill, C. Rosenfeld, D. Besson, R. S. Panvini, James C. Green, A. J. Sadoff, Ron Poling, M. Hempstead, and Xia Yi
Subjects: Physics, Particle physics, General Physics and Astronomy, B meson
Published: 1985

41. Measurement of the Branching Fraction of the Decayϒ(1S)→τ+τ−

Author: P. Skubic, A. Snyder, T. Gentile, N. B. Mistry, Joan A. Guida, J. Kandaswamy, L. Garren, F. Morrow, Ron Poling, J. Chauveau, E. Nordberg, M. Jibaly, E. H. Thorndike, Robert Stone, H. Van Hecke, V. Kistiakowsky, R. Galik, S. Holzner, S. Behrends, J. W. Dewire, Richard Wilson, F. M. Pipkin, D. L. Kreinick, R. Ehrlich, M. Hempstead, M. Halling, P. Lipari, H. Kagan, A. Chen, P. Avery, D. Peterson, F. Sannes, M. S. Alam, G. Rucinski, A. J. Sadoff, D. Weber, C. Bebek, G. Parkhurst, C. Rosenfeld, J. Hassard, A. Silverman, M. Ogg, R. G. Hicks, R. D. Kass, Joseph Izen, R. T. Giles, K. Chadwick, R. S. Panvini, T. Ferguson, A. Jawahery, R. Perchonok, C. G. Trahern, S. L. Olsen, Sheldon Stone, R. Plunkett, P. C. Stein, S. E. Csorna, K. Kinoshita, A. C. Melissinos, D. Herrup, D. Andrews, D. G. Cassel, M. D. Mestayer, M. Ito, M. Goldberg, D. L. Hartill, James C. Green, J. Rohlf, W. W. MacKay, P. Ganci, G. C. Moneti, Jan M. Guida, Y. Kubota, R. Wilcke, Murdock Gilchriese, B. Gittelman, Karl Berkelman, and N. Horwitz
Subjects: Physics, Particle physics, Muon, Meson, Branching fraction, Hadron, General Physics and Astronomy, Elementary particle, Astrophysics::Cosmology and Extragalactic Astrophysics, Fermion, Particle decay, High Energy Physics::Experiment, Astrophysics::Galaxy Astrophysics, Lepton
Abstract: The branching fraction for the decay of the UPSILON(1S) into tau pairs has been measured to be 3.4 +- 0.4 +- 0.4%. This result agrees with the previously measured branching ratio of the decay into muon pairs.
Published: 1983

42. Inclusiveφproduction inB-meson decay

Author: I. J. Kim, T. Copie, Ron Poling, R. S. Galik, Y. Kubota, Jan M. Guida, M. Goldberg, D. Perticone, S. Holzner, S. Behrends, H. Kagan, C. Bebek, R. T. Giles, P. Skubic, Themistocles Bowcock, D. G. Cassel, A. Chen, E. H. Thorndike, A. Jawahery, H. Van Hecke, F. Sannes, P. Avery, C. G. Trahern, P. C. Stein, R. Kowalewski, F. M. Pipkin, P. Haas, D. L. Kreinick, S. E. Csorna, Daniela Bortoletto, T. Jensen, A. J. Sadoff, M. Pisharody, Thomas Ferguson, E. Blucher, Sheldon Stone, M. Ito, Karl Berkelman, K. Kinoshita, Murdock Gilchriese, R. Namjoshi, J. Hassard, A. Silverman, Paul Tipton, J. W. Dewire, N. B. Mistry, C. Rosenfeld, S. W. Gray, N. Horwitz, L. Garren, N. Katayama, B. Gittelman, R. DeSalvo, A. M. Halling, D. Riley, G. B. Word, G. C. Moneti, P. Lubrano, Robert Stone, Joan A. Guida, J. Kandaswamy, M. Ogg, D. Besson, R. S. Panvini, M. Hempstead, Alice Bean, Chih-Ree Sun, R. D. Kass, M. D. Mestayer, Richard Wilson, E. Nordberg, F. Morrow, D. Peterson, M. S. Alam, T. Gentile, V. Tanikella, Xia Yi, R. Ehrlich, James Mueller, D. L. Hartill, James C. Green, B. K. Heltsley, and Kenneth Francis Read
Subjects: Physics, Particle physics, Annihilation, Meson, Branching fraction, Hadron, General Physics and Astronomy, Elementary particle, Nuclear physics, Particle decay, Pair production, High Energy Physics::Experiment, B meson, Astrophysics::Earth and Planetary Astrophysics
Abstract: We have measured the inclusive branching ratio for B..-->..phiX to be 0.023 +- 0.006 +- 0.005. The momentum distribution of the phi mesons is compared with that expected from the cascade decays B..-->..F..-->..phi and B..-->..D..-->..phi. .AE
Published: 1986

43. Observation of New Structure in thee+e−Cross Section above theϒ(4S)

Author: R. D. Kass, C. Bebek, G. Parkhurst, A. Jawahery, T. Jensen, P. Lipari, M. S. Alam, Joan A. Guida, D. L. Kreinick, J. Kandaswamy, P. Skubic, M. Ito, Robert Stone, D. G. Cassel, Murdock Gilchriese, R. T. Giles, L. Garren, R. DeSalvo, D. Peterson, Sheldon Stone, B. Gittelman, D. Perticone, S. Holzner, S. Behrends, K. Chadwick, Richard Wilson, James C. Green, T. Gentile, R. Ehrlich, Xu Kezun, J. W. Dewire, H. Van Hecke, T. Ferguson, P. Haas, C. Rosenfeld, Karl Berkelman, R. S. Panvini, A. Chen, Kenneth Francis Read, M. Ogg, J. Hassard, N. B. Mistry, Jan M. Guida, A. Silverman, F. Sannes, M. D. Mestayer, Xia Yi, A. Snyder, Y. Kubota, W. W. MacKay, P. Avery, D. Besson, N. Horwitz, T. Copie, A. C. Melissinos, M. Goldberg, G. C. Moneti, Paul Tipton, E. Nordberg, R. Namjoshi, M. Halling, C. G. Trahern, F. Morrow, P. C. Stein, S. E. Csorna, K. Kinoshita, S. L. Olsen, D. L. Hartill, Ron Poling, E. H. Thorndike, F. M. Pipkin, R. S. Galik, M. Hempstead, H. Kagan, and A. J. Sadoff
Subjects: Nuclear physics, Physics, Particle decay, Particle physics, Annihilation, Meson, Electron–positron annihilation, Hadron, General Physics and Astronomy, Multiplicity (mathematics), Elementary particle, Lepton
Abstract: Measurements of the ${e}^{+}{e}^{\ensuremath{-}}$ cross section above $B\overline{B}$ threshold are reported. Structures are observed which could be the $\ensuremath{\Upsilon}(5S)$ and $\ensuremath{\Upsilon}(6S)$ resonances. The masses and widths are given and compared with various potential-model predictions. Average charged multiplicities and inclusive lepton yields are also presented.
Published: 1985

44. Coloured monopoles from fractional charges in QCD

Author: A. P. Balachandran, V. P. Nair, and C. G. Trahern
Subjects: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Order (group theory), Observable, Low Mass, Symmetry (physics)
Abstract: In a recent paper, Slansky et al. have suggested that SU(3) C may be broken to SO(3) × Z 3 in order to explain the possible existence of fractionally charged states. We point out that there are low mass monopoles associated with such a symmetry breakdown and discuss their properties. Such states may be observable at LEP if not at PETRA energies.
Published: 1982

45. Measurements of cross sections and charge asymmetries for ee→ττ ee→μμ from 52 to 57 GeV

Author: E. H. Thorndike, T. Mori, R. Childers, Y. Sakai, Y. K. Li, W. Metcalf, S. Sakamoto, K. Hanaoka, C. W. Darden, T. Nozaki, R. Coombes, Z. P. Mao, A. Sill, H. Miyata, R. Poling, S. K. Kim, K. Ohta, Winston Ko, H. Kozuka, S. Trentalange, F. Sannes, Yoshimasa Kurihara, S. Kobayashi, M. H. Lee, Tsunehiko Omori, H. Harada, H. W. Zheng, Y. H. Ho, James C. Green, T. Sasaki, M. Frautschi, F. Naito, Kazumasa Miyano, K. Sparks, Hyunyong Kim, E. H. Low, A. Murakami, S. Matsumoto, R. Imlay, L. E. Piilonen, H. Asakura, K. Eguchi, T. Takeda, S. Wilson, J. Li, Y. Fujii, Steve Schnetzer, P. N. Kirk, Y. C. Zhu, Sarah Catherine Eno, C. G. Trahern, R. L. Lander, T. Kumita, Yusuke Higashi, Susumu Terada, H. Kagan, S. L. Olsen, C. A. Fry, Y. Sugimoto, A. Maki, S. Chakrabarti, H. Itoh, Y. Yamashita, R. Tanaka, H. Yokota, R. L. Malchow, Yongsun Kim, M. Ogawa, A. T.M. Wang, Rr Mcneil, R. D. Kass, N. M. Shaw, Y. Ishi, G. N. Kim, C. P. Cheng, S. Igarashi, Y. Yan, E. J. Kim, Y. T. Xu, M. C.S. Williams, P. Perez, F. Kajino, Dong-Chul Son, Y. Takaiwa, J. R. Smith, A. Bodek, Kiyosumi Tsuchiya, C. Rosenfeld, K. Gotow, D. Blanis, Kazuo Abe, D. Zimmerman, Kaori Maeshima, K. Toyoshima, H. Murata, S. Lusin, J. S. Kang, K. Ueno, I. H. Park, T. Ishizuka, S. S. Myung, A. Bacala, Robert Stone, A. Abashian, Hiroyuki Sagawa, H. S. Budd, and R. Chiba
Subjects: Physics, Coupling constant, Nuclear and High Energy Physics, Charge (physics), Atomic physics, Standard Model
Abstract: Measurements of the differential cross sections for e + e − →μ + μ − and e + e − →τ + τ − at values of s from 52 to 57 GeV are reported. The forward-backward asymmetries and the total cross sections for these reactions are found to be in agreement with predictions of the standard model of the electro-weak interactions. These measurements are used to extract values of the weak coupling constant g v e g v l and g A e g A l , where l = μ or τ .
Published: 1989

46. Upper Limit on Flavor-Changing Neutral-Current Decays of thebQuark

Author: D. L. Hartill, E. H. Thorndike, D. Weber, J. Hassard, A. Silverman, F. M. Pipkin, M. S. Alam, P. Haas, Murdock Gilchriese, Paul Tipton, T. Jensen, C. Bebek, G. Parkhurst, C. G. Trahern, James C. Green, B. Gittelman, P. C. Stein, Joan A. Guida, J. Kandaswamy, M. D. Mestayer, S. E. Csorna, P. Avery, K. Chadwick, M. Goldberg, D. G. Cassel, H. Van Hecke, Richard Wilson, P. Lipari, K. Kinoshita, S. Holzner, S. Behrends, D. Peterson, T. Ferguson, S. L. Olsen, W. W. MacKay, Karl Berkelman, A. Jawahery, M. Ito, E. Nordberg, M. E. Hejazifar, P. Skubic, A. Snyder, T. Gentile, G. C. Moneti, Robert Stone, R. Namjoshi, J. W. Dewire, N. Horwitz, Harris Kagan, D. L. Kreinick, R. S. Galik, Y. Kubota, R. T. Giles, A. Chen, F. Sannes, Sheldon Stone, N. B. Mistry, R. D. Kass, Jan M. Guida, R. Wilcke, Ron Poling, R. G. Hicks, A. C. Melissinos, M. Hempstead, J. Chauveau, M. Halling, A. J. Sadoff, C. Rosenfeld, M. Ogg, L. Garren, F. Morrow, D. Besson, R. S. Panvini, R. Ehrlich, and Xia Yi
Subjects: Quark, Semileptonic decay, Nuclear physics, Physics, Particle physics, Meson, Branching fraction, Flavor-changing neutral current, Quark model, General Physics and Astronomy, B meson, Bottom quark
Abstract: We have searched for flavor-changing neutral-current weak decays of the b quark and find R/sub B/(b..-->..l/sup +/l/sup -/X)
Published: 1984

47. Experimental Mass Limit for a Fourth-Generation Sequential Lepton frome+e−Annihilations ats=56GeV

Author: H. Asakura, S. Trentalange, R. Chiba, Y. Sugimoto, R. Tanaka, E. H. Thorndike, Z. P. Mao, Hiroyuki Sagawa, H. Harada, Hj Kim, Rr Mcneil, T. Nozaki, Yk Kim, A. Bacala, H. Miyata, A. Bodek, R. L. Lander, H. Kagan, Y. Yan, W. Metcalf, K. Gotow, S. Sakamoto, Robert Stone, F. Kajino, Yasuo Higashi, H. S. Budd, S. Wilson, S. K. Kim, S. S. Myung, R. Coombes, K. Toyoshima, H. Kozuka, C. G. Trahern, H. Itoh, H. Murata, Y. C. Zhu, S. L. Olsen, F. Sannes, T. Kumita, D. Zimmerman, K. Eguchi, I. H. Park, T. Sasaki, H. W. Zheng, S. Chakrabarti, Tsunehiko Omori, R. L. Malchow, R. D. Kass, G. N. Kim, T. Takeda, T. Mori, A. Sill, Y. Ishi, T. Ishizuka, K. Ohta, Winston Ko, C. A. Fry, S. Kobayashi, Y. H. Ho, L. E. Piilonen, D. Blanis, A. Abashian, S. Lusin, E. J. Kim, Smith, Y. T. Xu, J. S. Kang, Y. Fujii, C. Darden, Steve Schnetzer, K. Ueno, A. Maki, M. H. Lee, Kazuo Abe, Y. Sakai, Kaori Maeshima, S. Matsumoto, C. P. Cheng, M. Ogawa, Dong-Chul Son, P. Perez, K. Miyano, Kiyosumi Tsuchiya, Yoshimasa Kurihara, E. H. Low, A. Murakami, N. M. Shaw, Y. Takaiwa, M. C.S. Williams, P. N. Kirk, Y. Yamashita, K. Hanaoka, R. Poling, James C. Green, F. Naito, K. Sparks, M. Frautschi, Sarah Catherine Eno, Susumu Terada, H. Yokota, S. Igarashi, R. Imlay, R. Childers, and C. Rosenfeld
Subjects: Physics, Particle physics, Annihilation, High Energy Physics::Phenomenology, General Physics and Astronomy, Elementary particle, Fermion, Spectral line, Nuclear physics, Pair production, High Energy Physics::Experiment, Limit (mathematics), Nuclear Experiment, Event (particle physics), Lepton
Abstract: A search for pair production for fourth-generation sequential leptons in e/sup +/e/sup -/ annihilation at a center-of-mass energy ..sqrt..s = 56 GeV is reported. Event topologies corresponding to the cases where one particle decays leptonically while the other decays hadronically as well as those where both particles decay hadronically were explored. We set a 95%-confidence-level lower limit of 27.6 GeV/c/sup 2/ for the mass of a fourth-generation lepton.
Published: 1988

48. Observation of Radiative Decays of theϒ(2S)

Author: H. Kagan, F. Morrow, D. Weber, J. Hassard, A. Silverman, R. D. Kass, A. Chen, F. Sannes, C. Bebek, G. Parkhurst, A. J. Sadoff, Richard Wilson, L. Garren, W. W. MacKay, C. Rosenfeld, Y. Kubota, R. Wilcke, R. Ehrlich, P. Skubic, T. Jensen, M. S. Alam, Jan M. Guida, H. Van Hecke, Robert Stone, Xia Yi, R. T. Giles, D. Besson, Murdock Gilchriese, R. Namjoshi, D. L. Hartill, E. H. Thorndike, Ron Poling, B. Gittelman, T. Gentile, A. Jawahery, R. G. Hicks, F. M. Pipkin, J. Chauveau, P. Lipari, D. G. Cassel, D. Peterson, D. L. Kreinick, S. Holzner, S. Behrends, M. Halling, C. G. Trahern, M. Hempstead, Karl Berkelman, M. Ogg, M. D. Mestayer, M. Ito, R. S. Panvini, K. Chadwick, Paul Tipton, Joan A. Guida, P. Avery, J. Kandaswamy, R. S. Galik, N. Horwitz, S. L. Olsen, M. Goldberg, T. Ferguson, G. C. Moneti, James C. Green, A. C. Melissinos, E. Nordberg, A. Snyder, P. Haas, N. B. Mistry, Sheldon Stone, P. C. Stein, S. E. Csorna, J. W. Dewire, and K. Kinoshita
Subjects: Physics, Nuclear physics, Massless particle, Photon, Meson, Branching fraction, Hadron, Radiative transfer, General Physics and Astronomy, High Energy Physics::Experiment, Elementary particle, Atomic physics, Spectral line
Abstract: Evidence is reported from the CLEO detector for the chi/sub b/(1P) states from radiative decays of the UPSILON(2S). Photons are detected by pair conversion in the beam pipe or a lead radiator, and the pair momenta are measured in the drift chamber. Two photon lines are well resolved, with energies 109.5 +- 0.7 +- 1 and 129.0 +- 0.8 +- 1 MeV.
Published: 1984

49. Observation of Baryons inB-Meson Decay

Author: G. Parkhurst, Richard Wilson, D. G. Cassel, M. S. Alam, C. Rosenfeld, A. Chen, Harris Kagan, E. H. Thorndike, D. L. Kreinick, F. Sannes, J. W. Dewire, F. M. Pipkin, J. Chauveau, Y. Kubota, Robert Stone, S. Holzner, S. Behrends, W. W. MacKay, M. Halling, P. Ganci, R. Wilcke, Jan M. Guida, D. Herrup, Murdock Gilchriese, B. Gittelman, Sheldon Stone, Ron Poling, Paul Tipton, P. Lipari, T. Gentile, R. T. Giles, D. Peterson, G. C. Moneti, L. Garren, P. Skubic, M. Hempstead, M. D. Mestayer, M. Goldberg, V. Kistiakowsky, R. S. Panvini, R. Ehrlich, N. B. Mistry, P. Avery, D. Weber, A. Snyder, A. J. Sadoff, Xia Yi, S. L. Olsen, E. Nordberg, H. Van Hecke, J. Hassard, A. Silverman, R. D. Kass, R. Plunkett, A. Jawahery, Joan A. Guida, R. Perchonok, J. Kandaswamy, M. Ito, K. Chadwick, M. Ogg, T. Ferguson, F. Morrow, R. Galik, D. L. Hartill, James C. Green, R. G. Hicks, A. C. Melissinos, C. G. Trahern, P. C. Stein, S. E. Csorna, K. Kinoshita, G. Rucinski, N. Horwitz, Karl Berkelman, and C. Bebek
Subjects: Physics, Quark, Particle physics, Meson, Branching fraction, Nuclear Theory, Hadron, General Physics and Astronomy, Nuclear physics, Particle decay, Physics::Accelerator Physics, High Energy Physics::Experiment, B meson, Cornell Electron Storage Ring, Nuclear Experiment, Nucleon
Abstract: In a sample of B mesons from the decay of the UPSILON(4S) produced in e/sup +/e/sup -/ collisions at the Cornell Electron Storage Ring, inclusive protons, antiprotons, lambdas and antilambdas have been observed. Lower limits to the B-to-baryon branching ratios are derived.
Published: 1983

50. Search for monoenergetic photons from Υ(1S)→γ+X

Author: P. Skubic, I. J. Kim, M. D. Mestayer, D. L. Kreinick, E. H. Thorndike, D. Riley, F. Morrow, Xia Yi, F. M. Pipkin, T. Gentile, P. Lubrano, T. Copie, N. Horwitz, Joan A. Guida, H. Kagan, M. Hempstead, J. Kandaswamy, P. C. Stein, V. Tanikella, S. E. Csorna, Daniela Bortoletto, D. L. Hartill, D. Peterson, J. W. Dewire, A. M. Halling, R. DeSalvo, K. Kinoshita, Alice Bean, C. Rosenfeld, G. C. Moneti, A. Jawahery, R. Kowalewski, Robert Stone, James C. Green, A. J. Sadoff, R. Ehrlich, E. Nordberg, M. Ogg, L. Garren, G. B. Word, Chih-Ree Sun, P. Haas, N. B. Mistry, A. Chen, Richard Wilson, J. Hassard, A. Silverman, T. Jensen, M. Ito, B. K. Heltsley, D. Perticone, S. Holzner, S. Behrends, F. Sannes, R. T. Giles, Kenneth Francis Read, R. D. Kass, H. Van Hecke, D. Besson, R. S. Panvini, Ron Poling, C. Bebek, T. J. V. Bowcock, James Mueller, M. S. Alam, M. Goldberg, M. Pisharody, Karl Berkelman, R. Namjoshi, S. W. Gray, P. Avery, N. Katayama, Sheldon Stone, Paul Tipton, E. Blucher, C. G. Trahern, Murdock Gilchriese, B. Gittelman, Jan M. Guida, Thomas Ferguson, R. S. Galik, Y. Kubota, and D. G. Cassel
Subjects: Nuclear physics, Physics, Range (particle radiation), Photon, Meson, Branching fraction, Hadron, Elementary particle, Particle identification, Boson
Abstract: We present the results of a search for monoenergetic photons from the process UPSILON(1S) el+X. Upper limits at 90% confidence level for the branching ratio B(UPSILON(1S) el+X) range from 0.1% to 1.4% for photon energies between 150 and 2000 MeV.
Published: 1986

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