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1. Measurement of two-photon production of theχc2

Author

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

Subjects
Physics, Statistics::Theory, Particle physics, Particle decay, Muon, Statistics::Applications, Meson, Hadron, Perturbative QCD, High Energy Physics::Experiment, Production (computer science), Elementary particle, Quarkonium
Abstract

The CLEO II detector is used to search for the production of ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}2}$ states in two-photon interactions. We use the signature ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}2}$\ensuremath{\rightarrow}\ensuremath{\gamma}J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}${\mathit{l}}^{+}$${\mathit{l}}^{\mathrm{\ensuremath{-}}}$ with l=e,\ensuremath{\mu}. Using 1.49 ${\mathrm{fb}}^{\mathrm{\ensuremath{-}}1}$ of data taken with beam energies near 5.29 GeV, the two-photon width of the ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}2}$ is determined to be \ensuremath{\Gamma}(${\mathrm{\ensuremath{\chi}}}_{\mathit{c}2}$\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma})=1.08\ifmmode\pm\else\textpm\fi{}0.30(stat)\ifmmode\pm\else\textpm\fi{}0.26(syst) keV, in agreement with predictions from perturbative QCD.

Published
1994

2. Two-photon production of charged pion and kaon pairs

Author

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

Subjects
Physics, Quantum chromodynamics, Particle physics, Meson, FOS: Physical sciences, Elementary particle, High Energy Physics - Experiment, Massless particle, Nuclear physics, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Pair production, Pion, High Energy Physics::Experiment, Invariant mass, Cornell Electron Storage Ring
Abstract

A measurement of the cross section for the combined two-photon production of charged pion and kaon pairs is performed using 1.2~$\rm fb^{-1}$ of data collected by the CLEO~II detector at the Cornell Electron Storage Ring. The cross section is measured at invariant masses of the two-photon system between 1.5 and 5.0 GeV/$c^2$, and at scattering angles more than $53^\circ$ away from the $\gamma\gamma$ collision axis in the $\gamma\gamma$ center-of-mass frame. The large background of leptonic events is suppressed by utilizing the CsI calorimeter in conjunction with the muon chamber system. The reported cross section is compared with leading order QCD models as well as previous experiments. In particular, although the functional dependence of the measured cross section disagrees with leading order QCD at small values of the two-photon invariant mass, the data show a transition to perturbative behavior at an invariant mass of approximately 2.5 GeV/$c^2$. hardcopies with figures can be obtained by writing to to: Pam Morehouse preprint secretary Newman Lab Cornell University Ithaca, NY 14853 or by sending mail to: preprints@lns62.lns.cornell.edu, Comment: 15 pages (in REVTEX format)

Published
1994

3. Study of the five-charged-pion decay of the τ lepton

Author

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

Subjects
Semileptonic decay, Physics, Crystallography, Particle physics, Particle decay, Pion, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, General Physics and Astronomy, Cornell Electron Storage Ring, Lepton
Abstract

The branching fractions for the five-charged-particle decays of the [tau] lepton have been measured in [ital e][sup +][ital e][sup [minus]] annihilations using the CLEO II detector at the Cornell Electron Storage Ring. Assuming all charged particles to be pions, the results are [ital B](3[pi][sup [minus]]2[pi][sup +][ge]0 neutrals [nu][sub [tau]])=(0.097[plus minus]0.005[plus minus]0.011)%, [ital B](3[pi][sup [minus]]2[pi][sup +][nu][sub [tau]])=(0.077[plus minus]0.005 [plus minus]0.009)%, [ital B](3[pi][sup [minus]]2[pi][sup +][pi][sup 0][nu][sub [tau]])=(0.019[plus minus]0.004[plus minus]0.004)%, and [ital B](3[pi][sup [minus]]2[pi][sup +]2[pi][sup 0][nu][sub [tau]])[lt]0.011% at the 90% C.L. [ital B](3[pi][sup [minus]]2[pi][sup [minus]][pi][sup 0][nu][sub [tau]]) is measured for the first time by exclusive [pi][sup 0] reconstruction. The results are compared with the predictions from the partially conserved-axial-current and conserved-vector-current hypotheses assuming isospin invariance.

Published
1994

4. Precision measurement of theDs*+-Ds+mass difference

Author

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

Subjects
Nuclear physics, Physics, Systematic error, Particle physics, Meson, Electron–positron annihilation, Radiative decay, Measure (mathematics)
Abstract

We have measured the vector-pseudoscalar mass splitting M(D s * + )-M(D s + )=144.22±0.47±0.37 MeV significantly more precisely than the previous world average. We minimize the systematic errors by also measuring the vector-pseudoscalar mass difference M(D* 0 )-M(D 0 ) using the radiative decay D* 0 →D 0 γ, obtaining [M(D s * + )-M(D s + )]-[M(D* 0 )-M(D 0 )] =2.09±0.47±0.37 MeV. This is then combined with our previous high-precision measurement of M(D* 0 )-M(D 0 ), which used the decay D* 0 →D 0 π 0 . We also measure the mass difference M(D s + )-M(D + )=99.5±0.6±0.3 MeV, using the φπ + decay modes of the D s + and D + mesons.

Published
1994

5. Exclusive hadronicBdecays to charm and charmonium final states

Author

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

Subjects
Physics, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, FOS: Physical sciences, Elementary particle, Quarkonium, High Energy Physics - Experiment, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), Particle decay, High Energy Physics - Phenomenology (hep-ph), TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, High Energy Physics::Experiment, B meson
Abstract

We have fully reconstructed decays of both B0 and B- Mesons into final states containing either D, D*, D**, Psi, Psi', or Chi_{c1} mesons. This allows us to obtain new results on many physics topics including branching ratios, tests of the factorization hypothesis, color suppression, resonant substructure, and the B- - B0 mass difference., Comment: 37 pages. uuencoded compressed postscript (process with uudecode, then gunzip). 31 postscript figures available on request. CLNS-94-1270

Published
1994

6. Observation ofB0decay to two charmless mesons

Author

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

Subjects
Physics, Combinatorics, Particle physics, Particle decay, Meson, Branching fraction, Electron–positron annihilation, General Physics and Astronomy, B meson, Elementary particle
Abstract

We report results from a search for the decays ${\mathit{B}}^{0}$\ensuremath{\rightarrow}${\mathrm{\ensuremath{\pi}}}^{+}$${\mathrm{\ensuremath{\pi}}}^{\mathrm{\ensuremath{-}}}$, ${\mathit{B}}^{0}$\ensuremath{\rightarrow}${\mathit{K}}^{+}$${\mathrm{\ensuremath{\pi}}}^{\mathrm{\ensuremath{-}}}$, and ${\mathit{B}}^{0}$\ensuremath{\rightarrow}${\mathit{K}}^{+}$${\mathit{K}}^{\mathrm{\ensuremath{-}}}$. We find 90% confidence level upper limits on the branching fractions, ${\mathit{B}}_{\mathrm{\ensuremath{\pi}}\mathrm{\ensuremath{\pi}}}$2.9\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}5}$, ${\mathit{B}}_{\mathit{K}\mathrm{\ensuremath{\pi}}}$2.6\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}5}$, and ${\mathit{B}}_{\mathit{K}\mathit{K}}$0.7\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}5}$. While there is no statistically significant signal in the individual modes, the sum of ${\mathit{B}}_{\mathrm{\ensuremath{\pi}}\mathrm{\ensuremath{\pi}}}$ and ${\mathit{B}}_{\mathit{K}\mathrm{\ensuremath{\pi}}}$ exceeds zero with a significance of more than 4 standard deviations, indicating that we have observed charmless hadronic B decays.

Published
1993

7. Measurement of exclusiveΛcdecays with aΣ+in the final state

Author

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

Subjects
Physics, Crystallography, Particle decay, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Hyperon, General Physics and Astronomy, Lambda baryon, Lambda, Omega baryon, Sigma baryon
Abstract

We have measured branching ratios for three [Lambda][sub [ital c]] decay modes that have a [Sigma][sup +] in the final state. Two of the observed decay modes, [Lambda][sub [ital c]][r arrow][Sigma][sup +][pi][sup 0] and [Lambda][sub [ital c]][sup +][r arrow][Sigma][sup +][omega], have no external [ital W]-emission amplitudes. Their branching ratios relative to the [ital pK][sup [minus]][pi][sup +] mode are 0.20[plus minus]0.03[plus minus]0.03 and 0.54[plus minus]0.13[plus minus]0.06, respectively. We have also significantly improved the measurement of the branching ratio for the previously observed decay mode [Lambda][sub [ital c]][sup +][r arrow][Sigma][sup +][pi][sup +][pi][sup [minus]]. We find its branching ratio relative to [ital pK][sup [minus]][pi][sup +] to be 0.74[plus minus]0.07[plus minus]0.09.

Published
1993

8. Measurement of the absolute branching fraction forD0→K−π+

Author

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

Subjects
Hadronic decay, Physics, Statistics::Theory, Particle physics, Statistics::Applications, Meson, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, Elementary particle, Combinatorics, Particle decay, Angular correlation, High Energy Physics::Experiment
Abstract

Using 1.79 ${\mathrm{fb}}^{\mathrm{\ensuremath{-}}1}$ of data recorded by the CLEO II detector we have measured the absolute branching fraction for ${\mathit{D}}^{0}$\ensuremath{\rightarrow}${\mathit{K}}^{\mathrm{\ensuremath{-}}}$${\mathrm{\ensuremath{\pi}}}^{+}$. The angular correlation between the ${\mathrm{\ensuremath{\pi}}}^{+}$ emitted in the decay ${\mathit{D}}^{\mathrm{*}+}$\ensuremath{\rightarrow}${\mathit{D}}^{0}$${\mathrm{\ensuremath{\pi}}}^{+}$, and the jet direction in ${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$\ensuremath{\rightarrow}cc\ifmmode\bar\else\textasciimacron\fi{} events, is used to determine the total number of inclusive ${\mathit{D}}^{0}$ mesons produced from this source. The subsequent reconstruction of the decay chain ${\mathit{D}}^{\mathrm{*}+}$\ensuremath{\rightarrow}${\mathit{D}}^{0}$${\mathrm{\ensuremath{\pi}}}^{+}$,${\mathit{D}}^{0}$\ensuremath{\rightarrow}${\mathit{K}}^{\mathrm{\ensuremath{-}}}$${\mathrm{\ensuremath{\pi}}}^{+}$ allows a measurement of the absolute ${\mathit{D}}^{0}$\ensuremath{\rightarrow}${\mathit{K}}^{\mathrm{\ensuremath{-}}}$${\mathrm{\ensuremath{\pi}}}^{+}$ branching fraction. Correcting for decay radiation in the final state, we find scrB(${\mathit{D}}^{0}$\ensuremath{\rightarrow}${\mathit{K}}^{\mathrm{\ensuremath{-}}}$${\mathrm{\ensuremath{\pi}}}^{+}$)=[3.95\ifmmode\pm\else\textpm\fi{}0.08(stat)\ifmmode\pm\else\textpm\fi{}0.17(syst)]%.

Published
1993

9. Measurement of theD→ππ branching fractions

Author

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

Subjects
Physics, Hadronic decay, Crystallography, Particle decay, Particle physics, Particle properties, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Isospin, General Physics and Astronomy, Relative phase, Cornell Electron Storage Ring
Abstract

Using data from CLEO II at the Cornell Electron Storage Ring we provide a new measurement of the branching fraction for [ital D][sup 0][r arrow][pi][sup +][pi][sup [minus]], and we present the first measurements of [ital D][sup 0][r arrow][pi][sup 0][pi][sup 0] and of [ital D][sup +][r arrow][pi][sup +][pi][sup 0], which is due to an isospin changing [Delta][ital I]=3/2 transition. From these data we extract the ratio of isospin amplitudes [vert bar][ital A][sub 2]/[ital A][sub 0][vert bar], and the cosine of the relative phase [delta]=[delta][sub 2][minus][delta][sub 0] between these amplitudes, for [ital D][r arrow][pi][pi] decays. Unlike the situation in kaon decay where [ital A][sub 2] is strongly suppressed, we find [vert bar][ital A][sub 2]/[ital A][sub 0][vert bar]=0.72[plus minus]0.13[plus minus]0.11 and cos[delta]=0.14[plus minus]0.13[plus minus]0.09.

Published
1993

10. Evidence for penguin-diagram decays: First observation ofB→K*(892)γ

Author

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

Subjects
Physics, Combinatorics, Particle physics, Particle decay, Meson, Particle model, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, General Physics and Astronomy, Penguin diagram, B meson
Abstract

We have observed the decays [ital B][sup 0][r arrow][ital K][sup *](892)[sup 0][gamma] and [ital B][sup [minus]][r arrow][ital K][sup *](892)[sup [minus]][gamma], which are evidence for the quark-level process [ital b][r arrow][ital s][gamma]. The average branching fraction is (4.5[plus minus]1.5[plus minus]0.9)[times]10[sup [minus]5]. This value is consistent with standard model predictions from electromagnetic penguin diagrams.

Published
1993

11. Lepton asymmetry measurements inB¯→D*l−ν¯land implications forV-Aand the form factors

Author

R. Ammar, E. H. Thorndike, R. Ehrlich, D. Coppage, J. P. Alexander, Sheldon Stone, Paul Avery, D. F. Cowen, S. Menary, M. Garcia-Sciveres, S. Sanghera, Pu Wang, Darin Acosta, S. Roberts, F. Muheim, R. S. Galik, D. L. Kreinick, W. M. Yao, Vipul Jain, J. Urheim, C. Bebek, Shawn W. Henderson, K. Lingel, M. Sivertz, B. Nemati, M. S. Alam, S. W. Gray, Ryszard Stroynowski, Yoram Rozen, T. Liu, Ha Lam, X. Fu, E. I. Shibata, J. D. Richman, D. H. Miller, S. Schrenk, David Sperka, T. E. Browder, B. Ong, H. Worden, M. Modesitt, P. Rankin, Philip Baringer, S. Ball, C. R. Ng, Michael S. Witherell, M. Battle, A. J.R. Weinstein, M. Lattery, N. Katayama, M.K. Sung, B. C. Barish, J. Dominick, John E. Bartelt, A. P. Freyberger, J. Whitmore, Jungil Lee, Robert Wilson, J. G. Smith, D. S. Akerib, V. Savinov, G. Eigen, George R. Kalbfleisch, N. Kwak, N. Horwitz, R. L. Malchow, Christopher G. White, J. S. Miller, M. Thulasidas, D. Perticone, J. Masui, R. Stephens, S. E. Csorna, G. Masek, M. Chadha, Juliet Ritchie Patterson, M. Procario, K. Sparks, S. J. Patton, H. Tajima, C. R. Sun, C. O'Grady, K. K. Gan, F. Butler, T. Skwarnicki, W. T. Ford, M. Lambrecht, R. D. Kass, I. P. J. Shipsey, J. Snow, D. Z. Besson, Horst Severini, M. M. Zoeller, Janice Nelson, C. D. Jones, H. N. Nelson, K. Kinoshita, M. Daoudi, P. C. Kim, H. Yamamoto, R. L. McIlwain, D. Riley, Hubert Kroha, A. V. Barnes, Z. Egyed, R. Wang, M. Goldberg, M. Worris, Marina Artuso, Robert K. Kutschke, M. Kelly, J. Mevissen, G. C. Moneti, J. Gronberg, H. P. Paar, R. Fulton, Karl Berkelman, D. R. Johnson, P. Skubic, D. N. Brown, J. Kandaswamy, E. Nordberg, G. S. Ludwig, T. Miao, S.F. Schaffner, D. M. Coffman, J. A. Ernst, B. K. Heltsley, P. L. Wang, Paul Sheldon, Yuichi Kubota, Alice Bean, R. Davis, D. Peterson, G. Zhu, P. Rubin, F. Morrow, J. L. Rodriguez, Frank Würthwein, N. B. Mistry, P. S. Drell, M. Saulnier, P. Wilson, B. Geiser, M. Lohner, J. J. O'Neill, D. Cinabro, R. Kennett, B. Gittelman, I. J. Kim, D. L. Hartill, Daniel Schmidt, N. Copty, Glen D. Crawford, Daniela Bortoletto, D. G. Cassel, Cong Wang, John Yelton, H. Kagan, R. Poling, K. Honscheid, S. Playfer, R. J. Morrison, Mats A Selen, A. J. Sadoff, V. Romero, N. Hancock, and M. Sapper

Subjects
Physics, Semileptonic decay, Statistics::Theory, Particle physics, Statistics::Applications, Meson, Branching fraction, Electron–positron annihilation, High Energy Physics::Phenomenology, Weak interaction, Particle decay, High Energy Physics::Experiment, B meson, Cornell Electron Storage Ring
Abstract

We present a measurement of the lepton decay asymmetry ${\mathit{A}}_{\mathrm{fb}}$ in the reaction B\ifmmode\bar\else\textasciimacron\fi{}\ensuremath{\rightarrow}${\mathit{D}}^{\mathrm{*}}$${\mathit{l}}^{\mathrm{\ensuremath{-}}}$\ensuremath{\nu}${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}_{\mathit{l}}$ using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of ${\mathit{A}}_{\mathrm{fb}}$ confirms that the chirality of the weak interaction is predominantly left-handed in b\ensuremath{\rightarrow}c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using ${\mathit{A}}_{\mathrm{fb}}$ and the previously determined branching ratio, ${\mathit{q}}^{2}$ distribution, and ${\mathit{D}}^{\mathrm{*}}$ polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay.

Published
1993

12. Measurement of τ decays involving η mesons

Author

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

Subjects
Physics, Particle physics, Pion, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Electron–positron annihilation, Eta meson, Hadron, General Physics and Astronomy, High Energy Physics::Experiment, Elementary particle, Cornell Electron Storage Ring
Abstract

The decay [tau][sup [minus]][r arrow][nu][sub [tau]][pi][sup [minus]][pi][sup 0][eta] has been observed for the first time using the CLEO-II detector at the Cornell Electron Storage Ring. The measured branching ratio (0.17[plus minus]0.02[plus minus]0.02)%, agrees with the CVC (conserved vector current) prediction based on [ital e][sup +][ital e[minus]][r arrow][pi][sup +][pi][sup [minus]][eta] data. Upper limits on the branching ratios for other [tau] decays to final states including [eta] mesons are improved by an order of magnitude compared to previous measurements.

Published
1992

13. Isospin mass splittings from precision measurements ofD*-Dmass differences

Author

H. N. Nelson, K. Lingel, M. Sivertz, H. Worden, J. Gronberg, H. P. Paar, R. Fulton, E. H. Thorndike, E. Nordberg, G. S. Ludwig, N. Kwak, Z. Egyed, W. M. Yao, V. Romero, D. Coppage, J. P. Alexander, R. Malchow, N. Hancock, S. Playfer, Sheldon Stone, Paul Avery, D. L. Hartill, J. L. Rodriguez, P. S. Drell, Frank Würthwein, M. Saulnier, P. Wilson, R. L. McIlwain, R. Davis, K. K. Gan, T. Skwarnicki, J. Masui, M. Worris, B. Ong, G. Masek, Robert Wilson, Daniel Schmidt, P. C. Kim, N. B. Mistry, D. Riley, Shawn W. Henderson, A. V. Barnes, D. Cinabro, Juliet Ritchie Patterson, X. Fu, R. S. Galik, D. F. Cowen, R. Kennett, Alice Bean, B. Gittelman, M. Procario, Christopher G. White, M. Goldberg, G. C. Moneti, D. Z. Besson, John E. Bartelt, M. Kelly, Horst Severini, S.F. Schaffner, K. Sparks, I. J. Kim, J. Mevissen, K. Honscheid, J. G. Smith, D. H. Miller, N. Katayama, M. Garcia-Sciveres, D. S. Akerib, D. N. Brown, David Sperka, E. I. Shibata, D. R. Johnson, J. Kandaswamy, M. Daoudi, G. Eigen, Hubert Kroha, Vipul Jain, Ian Shipsey, D. G. Cassel, J. A. Ernst, Marina Artuso, P. L. Wang, N. Copty, Ryszard Stroynowski, B. Geiser, C. R. Sun, W. T. Ford, C. R. Ng, D. Peterson, G. Zhu, M. S. Alam, Daniela Bortoletto, R. Poling, R. D. Kass, Michael S. Witherell, M.K. Sung, M. Lohner, T. Liu, J. J. O'Neill, M. Modesitt, P. Rankin, P. Rubin, F. Morrow, P. Skubic, Paul Sheldon, Yuichi Kubota, S. W. Gray, R. Stephens, S. E. Csorna, D. Perticone, A. P. Freyberger, S. Roberts, M. Lambrecht, Glen D. Crawford, George R. Kalbfleisch, H. Kagan, F. Butler, H. Tajima, S. Sanghera, Pu Wang, N. Horwitz, M. Chadha, Darin Acosta, Janice Nelson, C. D. Jones, J. Snow, J. Whitmore, Jungil Lee, K. Kinoshita, H. Yamamoto, R. J. Morrison, Mats A Selen, A. J. Sadoff, Ha Lam, J. D. Richman, K. Heltsley, R. Wang, Robert K. Kutschke, F. Muheim, Cong Wang, Karl Berkelman, M. Lattery, B. C. Barish, John Yelton, S. Menary, R. Ammar, J. Urheim, B. Nemati, D. L. Kreinick, C. Bebek, M. Battle, A. J.R. Weinstein, T. E. Browder, J. Dominick, V. Savinov, D. M. Coffman, M. M. Zoeller, S. Patton, M. Sapper, S. Schrenk, T. Miao, R. Ehrlich, Yoram Rozen, Philip Baringer, S. Ball, J. S. Miller, M. Thulasidas, and C. O'Grady

Subjects
Physics, Particle decay, Particle physics, Meson, Electron–positron annihilation, Isospin, D meson, Hadron, General Physics and Astronomy, Elementary particle
Abstract

Using the decay modes, ${\mathit{D}}^{\mathrm{*}+}$\ensuremath{\rightarrow}${\mathit{D}}^{+}$${\mathrm{\ensuremath{\pi}}}^{0}$ and ${\mathit{D}}^{\mathrm{*}0}$\ensuremath{\rightarrow}${\mathit{D}}^{0}$${\mathrm{\ensuremath{\pi}}}^{0}$, we have measured the ${\mathit{D}}^{\mathrm{*}+\mathrm{\ensuremath{-}}}$${\mathit{D}}^{+}$ and ${\mathit{D}}^{\mathrm{*}0\mathrm{\ensuremath{-}}}$${\mathit{D}}^{0}$ mass differences to be 140\ifmmode\pm\else\textpm\fi{}0.08\ifmmode\pm\else\textpm\fi{}0.06 and 142.12\ifmmode\pm\else\textpm\fi{}0.05\ifmmode\pm\else\textpm\fi{}0.05 MeV, respectively. Combining these measurements with the Particle Data Group average for the ${\mathit{D}}^{\mathrm{*}+\mathrm{\ensuremath{-}}}$${\mathit{D}}^{0}$ mass difference, we obtain isospin mass splittings for ${\mathit{D}}^{\mathrm{*}+\mathrm{\ensuremath{-}}}$Dusp*0 and ${\mathit{D}}^{+\mathrm{\ensuremath{-}}}$${\mathit{D}}^{0}$ of 3.32\ifmmode\pm\else\textpm\fi{}0.08\ifmmode\pm\else\textpm\fi{}0.05 and 4.80\ifmmode\pm\else\textpm\fi{}0.10 \ifmmode\pm\else\textpm\fi{}0.06 MeV. We discuss the implications of these measurements for models of isospin mass differences and model-dependent estimates of ${\mathit{f}}_{\mathit{D}}$.

Published
1992

14. Inclusive decays of B mesons to charmonium

Author

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

Subjects
Physics, Electron storage, Particle physics, Crystallography, Meson, Branching fraction, Electron–positron annihilation, B meson
Abstract

We have used the CLEO-II detector at the Cornell Electron Storage Ringe (CESR) to study the inclusive production of charmonium mesons in a sample of 2.15 million {ital B{bar B}} events. We find inclusive branching fractions of (1.12{plus_minus}0.04{plus_minus}0.06)% for {ital B}{r_arrow}{ital J}/{psi}{ital X}, (0.34{plus_minus}0.04{plus_minus}0.03)% for {ital B}{r_arrow}{psi}{prime}{ital X}, and (0.40{plus_minus}0.06{plus_minus}0.04)% for {ital B}{r_arrow}{chi}{sub {ital c}1}{ital X}. We also find some evidence for the inclusive production of {chi}{sub {ital c}2}, and set an upper limit for the branching fraction of the inclusive decay {ital B}{r_arrow}{eta}{sub {ital c}}{ital X} of 0.9% at 90% confidence level. Momentum spectra for inclusive {ital J}/{psi}, {psi}{prime}, and {chi}{sub {ital c}1} production are presented. These measurements are compared to theoretical calculations.

Published
1995

15. Observation of a new charmed strange meson

Author

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

Subjects
Physics, Particle physics, Particle properties, Meson, Hadron, General Physics and Astronomy, FOS: Physical sciences, Elementary particle, Particle identification, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Boson
Abstract

Using the CLEO-II detector, we have obtained evidence for a new meson decaying to $D^0 K^+$. Its mass is $2573.2^{+1.7}_{-1.6}\pm 0.8\pm 0.5$ {}~MeV/$c^2$ and its width is $16^{+5}_{-4}\pm 3$~MeV/$c^2$. Although we do not establish its spin and parity, the new meson is consistent with predictions for an $L=1$, $S=1$, $J_P=2^+$ charmed strange state., 9 pages uuencoded compressed postscript (process with uudecode then gunzip). hardcopies with figures can be obtained by sending mail to: preprints@lns62.lns.cornell.edu

Published
1994

16. Limits on Flavor Changing Neutral Currents inD0Meson Decays

Author

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

Subjects
Physics, Particle physics, Meson, General Physics and Astronomy, Flavor
Published
1996

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