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657 results on '"E. H. Thorndike"'

501. First observation ofB¯→D(*)ρ′−,ρ′−→ωπ−

Author: D. H. Miller, P. Gaidarev, K. Benslama, D. Riley, S. E. Csorna, G. W. Brandenburg, D. G. Cassel, Y. S. Gao, M. Dubrovin, H. P. Paar, T. O. Meyer, D. E. Jaffe, E. H. Thorndike, J. E. Duboscq, L. K. Gibbons, V. V. Frolov, Yuichi Kubota, H. Schwarthoff, A. H. Mahmood, Shuai Chen, A. Anastassov, P. S. Drell, Karl Berkelman, E. Nordberg, R. Mahapatra, M. M. Zoeller, M. Saleem, I. Karliner, G. Bonvicini, J. P. Alexander, D. Z. Besson, T. E. Coan, J. Urheim, D. Hufnagel, R. Ammar, A. J. Weinstein, C.Y. Prescott, J. J. Thaler, Tomasz Skwarnicki, Thomas Ferguson, S. Ahmed, I. P.J. Shipsey, R. M. Hans, B. I. Eisenstein, D. M. Asner, Hans J. Vogel, C. Gwon, S. J. Richichi, M. Lohner, M. A. Marsh, L. Jian, J. G. Thayer, Jianqiao Ye, J. Ernst, W. M. Sun, Sheldon Stone, G. P. Chen, Ryszard Stroynowski, S.C. Timm, D. Urner, E. I. Shibata, A. Wolf, Paul Avery, H. Stoeck, R. A. Briere, Andreas Warburton, C. J. Stepaniak, K. W. Edwards, D. Cinabro, Richard Wilson, Marina Artuso, M. Kostin, C. D. Jones, D. Y.J. Kim, G. J. Zhou, B. E. Berger, E. Johnson, B. Gittelman, C. Sedlack, K. K. Gan, G. Viehhauser, R. Poling, L. Hsu, T. Bergfeld, S. B. Athar, J. W. Hinson, V. Pavlunin, R. Godang, T. Hart, Z. Xu, P. Skubic, Sacha E Kopp, K. Honscheid, M. S. Alam, I. Danko, C. Boulahouache, N. B. Mistry, T. K. Pedlar, A. I. Rubiera, D. L. Hartill, S. McGee, R. D. Kass, A. Smith, A. Shapiro, J. Williams, C. Plager, S. Anderson, Daniel P Cronin-Hennessy, R. Mountain, A. Undrus, K. Bukin, S. W. Gray, A. Romano, A. Magerkurth, Yurii Maravin, F. R. Wappler, S. P. Pappas, C. Bebek, J. B. Thayer, E. Eckhart, L. Ling, V. Fadeyev, I. Narsky, E. von Toerne, T. Wlodek, T. S. Hill, A. Ershov, R. Ehrlich, G. Masek, Juliet Ritchie Patterson, John Yelton, B. Valant-Spaight, H. Kagan, R. J. Morrison, Mats A Selen, Horst Severini, A. J. Sadoff, J. Kandaswamy, X. Zhao, A. Bornheim, D. Peterson, K. W. McLean, M.A. Palmer, Alice Bean, Jason Sang Hun Lee, V. Boisvert, A. Eppich, B. K. Heltsley, E. Lipeles, S. J. Lee, G. D. Gollin, D. L. Kreinick, V. Savinov, F. Blanc, G. E. Gladding, K. M. Ecklund, A. L. Lyon, E. Dambasuren, Jing Wang, and G. Majumder
Subjects: Combinatorics, Physics, Nuclear and High Energy Physics, Central mass, 010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, 01 natural sciences, Omega
Abstract: We report on the observation of $\overline{B}\ensuremath{\rightarrow}{D}^{*}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$ decays. The branching ratios for ${D}^{*+}$ and ${D}^{*0}$ are $(1.72\ifmmode\pm\else\textpm\fi{}0.14\ifmmode\pm\else\textpm\fi{}0.24)%$ and $(1.80\ifmmode\pm\else\textpm\fi{}0.24\ifmmode\pm\else\textpm\fi{}0.27)%,$ respectively. Each final state has a ${D}^{*}\ensuremath{\omega}{\ensuremath{\pi}}^{\ensuremath{-}}$ component, with branching ratios $(0.29\ifmmode\pm\else\textpm\fi{}0.03\ifmmode\pm\else\textpm\fi{}0.04)%$ and $(0.45\ifmmode\pm\else\textpm\fi{}0.10\ifmmode\pm\else\textpm\fi{}0.07)%$ for the ${D}^{*+}$ and ${D}^{*0}$ modes, respectively. We also observe $\overline{B}\ensuremath{\rightarrow}D\ensuremath{\omega}{\ensuremath{\pi}}^{\ensuremath{-}}$ decays. The branching ratios for ${D}^{+}$ and ${D}^{0}$ are $(0.28\ifmmode\pm\else\textpm\fi{}0.05\ifmmode\pm\else\textpm\fi{}0.04)%$ and $(0.41\ifmmode\pm\else\textpm\fi{}0.07\ifmmode\pm\else\textpm\fi{}0.06)%,$ respectively. A spin parity analysis of the $\ensuremath{\omega}{\ensuremath{\pi}}^{\ensuremath{-}}$ system in the $D\ensuremath{\omega}{\ensuremath{\pi}}^{\ensuremath{-}}$ final state shows a preference for a wide ${1}^{\ensuremath{-}}$ resonance. A fit to the $\ensuremath{\omega}{\ensuremath{\pi}}^{\ensuremath{-}}$ mass spectrum finds a central mass of $(1349\ifmmode\pm\else\textpm\fi{}{25}_{\ensuremath{-}5}^{+10})$ MeV and width of $(547\ifmmode\pm\else\textpm\fi{}{86}_{\ensuremath{-}45}^{+46})$ MeV. We identify this object as the $\ensuremath{\rho}(1450)$ or the ${\ensuremath{\rho}}^{\ensuremath{'}}.$
Published: 2001
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502. Search for the Decayϒ(1S)→γη′

Author: I. P.J. Shipsey, L. Ling, Y. S. Gao, S. Dytman, T. O. Meyer, A. Ershov, L. Hsu, F. Blanc, G. E. Gladding, R. Ehrlich, K. Honscheid, F. Liu, M. Kostin, D. Y.J. Kim, K. M. Ecklund, Richard Wilson, A. L. Lyon, H. Mahlke-Krüger, D. L. Kreinick, D. Z. Besson, I. Danko, K. Bukin, G. Viehhauser, N. B. Mistry, J. Kandaswamy, M.A. Palmer, D. Peterson, R. Mahapatra, K. W. McLean, T. K. Pedlar, D. E. Jaffe, L. K. Gibbons, V. V. Frolov, K. K. Gan, T. Hart, Karl Berkelman, M. Saleem, J. Williams, D. Riley, V. Savinov, I. Narsky, T. E. Coan, D. L. Hartill, C. Plager, S. Anderson, Yurii Maravin, C. J. Stepaniak, Jason Sang Hun Lee, M. Dubrovin, S. E. Csorna, W. Park, A. J. Weinstein, K. Benslama, Tomasz Skwarnicki, E. H. Thorndike, S. Ahmed, A. Magerkurth, V. Boisvert, A. Smith, Shuai Chen, A. Anastassov, S.C. Timm, Yuichi Kubota, B. K. Heltsley, E. Lipeles, S. J. Lee, S. J. Richichi, G. Bonvicini, J. P. Alexander, F. R. Wappler, R. Ammar, J. B. Thayer, W. M. Sun, Ryszard Stroynowski, G. W. Brandenburg, G. D. Gollin, J. E. Duboscq, M. Weinberger, H. Schwarthoff, R. M. Hans, C. D. Jones, Z. Xu, John Yelton, C. Gwon, M. Lohner, M. A. Marsh, Andreas Warburton, J. Pivarski, J. G. Thayer, E. Dambasuren, H. Kagan, Adolf Bornheim, B. Valant-Spaight, R. S. Galik, S. P. Pappas, C. Bebek, Jing Wang, G. Majumder, S. B. Athar, D. H. Miller, C. Sedlack, X. Zhao, S. W. Gray, H. P. Paar, R. D. Kass, E. Eckhart, R. J. Morrison, Mats A Selen, A. J. Sadoff, A. Shapiro, E. Nordberg, P. Skubic, D. Urner, E. I. Shibata, H. Zhao, J. Urheim, Jon J Thaler, Sacha E Kopp, M. S. Alam, R. Godang, Daniel P Cronin-Hennessy, Hans J. Vogel, R. Mountain, Sheldon Stone, Paul Avery, G. P. Chen, H. Stoeck, R. A. Briere, J. W. Hinson, C. Boulahouache, M. M. Zoeller, S. McGee, D. G. Cassel, J. R. Patterson, D. Hufnagel, A. H. Mahmood, I. Karliner, B. I. Eisenstein, E. von Toerne, N. Lowrey, D. Cinabro, B. Gittelman, P. S. Drell, Thomas Ferguson, J. Ernst, C.Y. Prescott, Jianqiao Ye, K. W. Edwards, L. Jian, Marina Artuso, G. Masek, A. Bean, Horst Severini, R. Poling, and V. Pavlunin
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Radiative decay, General Physics and Astronomy, 01 natural sciences, 0103 physical sciences, Pi, Radiative transfer, High Energy Physics::Experiment, Decay chain, Cornell Electron Storage Ring, Atomic physics, 010306 general physics
Abstract: We report on a search for the radiative decay Upsilon(1S)-->gammaeta(') in 61.3 pb(-1) of data taken with the CLEO II detector at the Cornell Electron Storage Ring. Three decay chains were investigated, all involving eta(')-->pi(+)pi(-)eta, followed by eta-->gammagamma, eta-->pi(0)pi(0)pi(0), or eta-->pi(+)pi(-)pi(0). We find no candidate events in any of the three cases and set a combined upper limit of 1.6x10(-5) at 90% C.L., significantly smaller than the previous limit. We compare our result to other radiative Upsilon decays, to radiative J/psi decays, and to theoretical predictions.
Published: 2001
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503. Rate measurement of D(0)-->K+pi(-)pi(0) and constraints on D(0) -- D(0) mixing

Author: G, Brandenburg, A, Ershov, D Y, Kim, R, Wilson, T, Bergfeld, B I, Eisenstein, J, Ernst, G E, Gladding, G D, Gollin, R M, Hans, E, Johnson, I, Karliner, M A, Marsh, C, Plager, C, Sedlack, M, Selen, J J, Thaler, J, Williams, K W, Edwards, A J, Sadoff, R, Ammar, A, Bean, D, Besson, X, Zhao, S, Anderson, V V, Frolov, Y, Kubota, S J, Lee, R, Poling, A, Smith, C J, Stepaniak, J, Urheim, S, Ahmed, M S, Alam, S B, Athar, L, Jian, L, Ling, M, Saleem, S, Timm, F, Wappler, A, Anastassov, E, Eckhart, K K, Gan, C, Gwon, T, Hart, K, Honscheid, D, Hufnagel, H, Kagan, R, Kass, T K, Pedlar, J B, Thayer, E, von Toerne, M M, Zoeller, S J, Richichi, H, Severini, P, Skubic, A, Undrus, V, Savinov, S, Chen, J W, Hinson, J, Lee, D H, Miller, E I, Shibata, I P, Shipsey, V, Pavlunin, D, Cronin-Hennessy, A L, Lyon, E H, Thorndike, T E, Coan, V, Fadeyev, Y S, Gao, Y, Maravin, I, Narsky, R, Stroynowski, J, Ye, T, Wlodek, M, Artuso, K, Benslama, C, Boulahouache, K, Bukin, E, Dambasuren, G, Majumder, R, Mountain, T, Skwarnicki, S, Stone, J C, Wang, A, Wolf, S, Kopp, M, Kostin, A H, Mahmood, S E, Csorna, I, Danko, K W, McLean, Z, Xu, R, Godang, G, Bonvicini, D, Cinabro, M, Dubrovin, S, McGee, G J, Zhou, A, Bornheim, E, Lipeles, S P, Pappas, A, Shapiro, W M, Sun, A J, Weinstein, D E, Jaffe, R, Mahapatra, G, Masek, H P, Paar, D M, Asner, A, Eppich, T S, Hill, R J, Morrison, H N, Nelson, R A, Briere, G P, Chen, T, Ferguson, H, Vogel, J P, Alexander, C, Bebek, B E, Berger, K, Berkelman, F, Blanc, V, Boisvert, D G, Cassel, P S, Drell, J E, Duboscq, K M, Ecklund, R, Ehrlich, P, Gaidarev, L, Gibbons, B, Gittelman, S W, Gray, D L, Hartill, B K, Heltsley, L, Hsu, C D, Jones, J, Kandaswamy, D L, Kreinick, M, Lohner, A, Magerkurth, T O, Meyer, N B, Mistry, E, Nordberg, M, Palmer, J R, Patterson, D, Peterson, D, Riley, A, Romano, H, Schwarthoff, J G, Thayer, D, Urner, B, Valant-Spaight, G, Viehhauser, A, Warburton, P, Avery, C, Prescott, A I, Rubiera, H, Stoeck, and J, Yelton
Abstract: We present an observation and time-integrated rate measurement of the decay D(0)-->K(+)pi(-)pi(0) produced in 9 fb(-1) of e(+)e(-) collisions near the Upsilon(4S) resonance. The signal is inconsistent with an upward fluctuation of the background by 4.9 standard deviations. We measured the time-integrated rate of D(0)-->K(+)pi(-)pi(0) normalized to the rate of D(0)-->K(+)pi(-)pi(0) to be 0.0043(+0.0011)(-0.0010) (stat)+/-0.0007 (syst). This decay can be produced by doubly Cabibbo-suppressed decays or by the D(0) evolving into a D(0) through mixing, followed by a Cabibbo-favored decay to K(+)pi(-)pi(0). We also found the CP asymmetry A = (9(+25)(-22))% be consistent with zero.
Published: 2001

504. Experimental investigation of the two-photon widths of the chi(c0) and the chi(c2) mesons

Author: B I, Eisenstein, J, Ernst, G E, Gladding, G D, Gollin, R M, Hans, E, Johnson, I, Karliner, M A, Marsh, C, Plager, C, Sedlack, M, Selen, J J, Thaler, J, Williams, K W, Edwards, A J, Sadoff, R, Ammar, A, Bean, D, Besson, X, Zhao, S, Anderson, V V, Frolov, Y, Kubota, S J, Lee, R, Poling, A, Smith, C J, Stepaniak, J, Urheim, S, Ahmed, M S, Alam, S B, Athar, L, Jian, L, Ling, M, Saleem, S, Timm, F, Wappler, A, Anastassov, E, Eckhart, K K, Gan, C, Gwon, T, Hart, K, Honscheid, D, Hufnagel, H, Kagan, R, Kass, T K, Pedlar, J B, Thayer, E, von Toerne, M M, Zoeller, S J, Richichi, H, Severini, P, Skubic, A, Undrus, V, Savinov, S, Chen, J W, Hinson, J, Lee, D H, Miller, E I, Shibata, I P, Shipsey, V, Pavlunin, D, Cronin-Hennessy, A L, Lyon, E H, Thorndike, T E, Coan, V, Fadeyev, Y S, Gao, Y, Maravin, I, Narsky, R, Stroynowski, J, Ye, T, Wlodek, M, Artuso, K, Benslama, C, Boulahouache, K, Bukin, E, Dambasuren, G, Majumder, R, Mountain, T, Skwarnicki, S, Stone, J C, Wang, A, Wolf, S, Kopp, M, Kostin, A H, Mahmood, S E, Csorna, I, Danko, K W, McLean, Z, Xu, R, Godang, G, Bonvicini, D, Cinabro, M, Dubrovin, S, McGee, A, Bornheim, E, Lipeles, S P, Pappas, A, Shapiro, W M, Sun, A J, Weinstein, D E, Jaffe, R, Mahapatra, G, Masek, H P, Paar, D M, Asner, A, Eppich, T S, Hill, R J, Morrison, R A, Briere, G P, Chen, T, Ferguson, H, Vogel, J P, Alexander, C, Bebek, B E, Berger, K, Berkelman, F, Blanc, V, Boisvert, D G, Cassel, P S, Drell, J E, Duboscq, K M, Ecklund, R, Ehrlich, P, Gaidarev, R S, Galik, L, Gibbons, B, Gittelman, S W, Gray, D L, Hartill, B K, Heltsley, L, Hsu, C D, Jones, J, Kandaswamy, D L, Kreinick, M, Lohner, A, Magerkurth, H, Mahlke-Krüger, T O, Meyer, N B, Mistry, E, Nordberg, M, Palmer, J R, Patterson, D, Peterson, D, Riley, A, Romano, H, Schwarthoff, J G, Thayer, D, Urner, B, Valant-Spaight, G, Viehhauser, A, Warburton, P, Avery, C, Prescott, A I, Rubiera, H, Stoeck, J, Yelton, G, Brandenburg, A, Ershov, D Y, Kim, and R, Wilson
Abstract: Using 12.7 fb(-1) of data collected with the CLEO detector at CESR, we observed two-photon production of the cc states chi(c0) and chi(c2) in their decay to pi(+)pi(-)pi(+)pi(-). We measured gamma(gammagamma)(chi(c))xB(chi(c)-->pi(+)pi(-)pi(+)pi(-)) to be 75+/-13(stat)+/-8(syst) eV for the chi(c0) and 6.4+/-1.8(stat)+/-0.8(syst) eV for the chi(c2), implying gamma(gammagamma)(chi(c0)) = 3.76+/-0.65(stat)+/-0.41(syst)+/-1.69(br) keV and gamma(gammagamma)(chi(c2)) = 0.53+/-0.15(stat)+/-0.06(syst)+/-0.22(br) keV. Also, cancellation of dominant experimental and theoretical uncertainties permits a precise comparison of gamma(gammagamma)(chi(c0))/gamma(gammagamma)(chi(c2)), evaluated to be 7.4+/-2.4(stat)+/-0.5(syst)+/-0.9(br), with QCD-based predictions.
Published: 2001

505. Rate Measurement ofD0→K+π−π0and Constraints onD0−D0¯Mixing

Author: H. P. Paar, T. O. Meyer, D. L. Kreinick, X. Zhao, A. Bornheim, L. Hsu, D. Z. Besson, E. Nordberg, K. Honscheid, V. Savinov, T. S. Hill, K. W. Edwards, R. Ehrlich, Sacha E Kopp, M. S. Alam, T. E. Coan, K. Bukin, A. J. Weinstein, Shuai Chen, A. Anastassov, I. Narsky, Tomasz Skwarnicki, M.A. Palmer, Daniel P Cronin-Hennessy, H. N. Nelson, D. G. Cassel, S. J. Richichi, W. M. Sun, Ryszard Stroynowski, G. Masek, F. Blanc, G. E. Gladding, A. H. Mahmood, Juliet Ritchie Patterson, D. Cinabro, I. P.J. Shipsey, I. Karliner, C. Sedlack, G. J. Zhou, S. P. Pappas, C. Bebek, E. Eckhart, B. Gittelman, K. M. Ecklund, J. Williams, A. L. Lyon, B. I. Eisenstein, John Yelton, Sheldon Stone, Paul Avery, L. Jian, H. Kagan, Horst Severini, Marina Artuso, V. Fadeyev, H. Schwarthoff, T. Wlodek, R. Godang, George D Gollin, B. Valant-Spaight, M. Kostin, P. Skubic, D. Y.J. Kim, J. E. Duboscq, B. K. Heltsley, D. M. Asner, Karl Berkelman, E. Lipeles, S. J. Lee, M. Saleem, R. J. Morrison, Mats A Selen, C. Gwon, M. Lohner, D. E. Jaffe, J. G. Thayer, R. Mountain, A. I. Rubiera, A. Romano, R. D. Kass, I. Danko, A. J. Sadoff, Alice Bean, R. Poling, T. K. Pedlar, V. Pavlunin, D. L. Hartill, Yurii Maravin, Jason Sang Hun Lee, V. Boisvert, C. Plager, S. Anderson, Richard Wilson, A. Eppich, E. von Toerne, R. Ammar, A. Magerkurth, A. Shapiro, Z. Xu, R. M. Hans, D. Riley, F. R. Wappler, J. B. Thayer, P. S. Drell, Thomas Ferguson, M. Dubrovin, E. Dambasuren, T. Bergfeld, J. Ernst, Jing Wang, G. Majumder, E. H. Thorndike, Yuichi Kubota, A. Undrus, Andreas Warburton, M. A. Marsh, G. Bonvicini, J. P. Alexander, S.C. Timm, D. H. Miller, K. K. Gan, P. Gaidarev, A. Smith, J. Urheim, G. Viehhauser, K. Benslama, Jon J Thaler, N. B. Mistry, C. J. Stepaniak, S. E. Csorna, Hans J. Vogel, L. Ling, C.Y. Prescott, G. W. Brandenburg, Jianqiao Ye, A. Ershov, J. Kandaswamy, M. M. Zoeller, D. Peterson, K. W. McLean, A. Wolf, S. B. Athar, D. Urner, E. I. Shibata, E. Johnson, C. Boulahouache, S. McGee, D. Hufnagel, C. D. Jones, B. E. Berger, Y. S. Gao, T. Hart, S. W. Gray, G. P. Chen, H. Stoeck, R. A. Briere, R. Mahapatra, S. Ahmed, J. W. Hinson, L. K. Gibbons, and V. V. Frolov
Subjects: Physics, Crystallography, 010308 nuclear & particles physics, Rate measurement, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Electron–positron annihilation, 0103 physical sciences, General Physics and Astronomy, CP violation, Resonance, 010306 general physics, 01 natural sciences, Mixing (physics)
Abstract: We present an observation and time-integrated rate measurement of the decay D{sup 0}{yields}K{sup +}{pi}{sup -}{pi}{sup 0} produced in 9 fb{sup -1} of e{sup +}e{sup -} collisions near the {Upsilon}(4S) resonance. The signal is inconsistent with an upward fluctuation of the background by 4.9 standard deviations. We measured the time-integrated rate of D{sup 0}{yields}K{sup +}{pi}{sup -}{pi}{sup 0} normalized to the rate of {ovr D{sup 0}}{yields}K{sup +}{pi}{sup -} {pi}{sup 0} to be 0.0043{sup +0.0011}{sub -0.0010} ( stat){+-}0.0007 (syst ). This decay can be produced by doubly Cabibbo-suppressed decays or by the D{sup 0} evolving into a {ovr D{sup 0}} through mixing, followed by a Cabibbo-favored decay to K{sup +}{pi}{sup -}{pi}{sup 0}. We also found the CP asymmetry A=(9{sup +25}{sub -22})% be consistent with zero.
Published: 2001
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506. Experimental Investigation of the Two-Photon Widths of theχc0and theχc2Mesons

Author: G. P. Chen, R. A. Briere, Elliot Lipeles, Erik A. Johnson, C. D. Jones, T. O. Meyer, J. Kandaswamy, M.A. Palmer, G. H. A. Viehhauser, A. Eppich, D. Riley, S.C. Timm, G. Masek, J. W. Hinson, Juliet Ritchie Patterson, Karl Berkelman, J. A. Ernst, M. Dubrovin, Vitaliy Fadeyev, Z. Xu, T. Wlodek, M. Kostin, L. K. Gibbons, Sheldon Stone, Paul Avery, D. Peterson, A. M. Smith, T. Hart, T. E. Coan, R. Ammar, K. W. McLean, D. Y.J. Kim, S. Ahmed, M. M. Zoeller, D. Hufnagel, E. H. Thorndike, K. Benslama, J. J. Thaler, D. Cronin-Hennessy, D. L. Kreinick, A. Magerkurth, J. Urheim, I. Danko, S. J. Richichi, Yuichi Kubota, H. Stoeck, D. Cinabro, S. W. Gray, A. Wolf, C. Bebek, E. Dambasuren, S. P. Pappas, Jing Wang, Horst Severini, Sai-Juan Chen, G. Bonvicini, J. P. Alexander, S. B. Anderson, R. M. Hans, A. I. Rubiera, R. D. Kass, B. E. Berger, Alexander Ershov, B. Gittelman, Ian Shipsey, June Hyuk Lee, R. Godang, V. V. Frolov, A. J.R. Weinstein, Gobinda Majumder, B. Valant-Spaight, N. B. Mistry, D. H. Miller, H. Schwarthoff, V. Savinov, R. J. Wilson, Andreas Warburton, E. von Toerne, D. E. Jaffe, A. Bornheim, R. S. Galik, Yurii Maravin, A. H. Mahmood, P. Gaidarev, C. Plager, Ryszard Stroynowski, L. Ling, C. Sedlack, M. A. Marsh, T. S. Hill, R. Ehrlich, F. Blanc, G. E. Gladding, Xiandong Zhao, T. K. Pedlar, A. L. Lyon, R. Mountain, Helmut Vogel, P. Skubic, C. Boulahouache, A. Romano, K. M. Ecklund, S. E. Csorna, S. McGee, S. B. Athar, K. K. Gan, T. Skwarnicki, M. Saleem, H. P. Paar, A. Anastassov, G. W. Brandenburg, I. Karliner, E. Nordberg, D. G. Cassel, A. Shapiro, H. Mahlke-Krüger, V. Pavlunin, C. J. Stepaniak, E. A. Eckhart, D. Urner, E. I. Shibata, Sacha E Kopp, M. S. Alam, R. Poling, J. C. Williams, B. K. Heltsley, Thomas Ferguson, S. J. Lee, Persis S. Drell, G. D. Gollin, D. M. Asner, C. Gwon, J. G. Thayer, Y. S. Gao, B. I. Eisenstein, M. Lohner, L. Jian, Marina Artuso, Werner Sun, Alexander Undrus, L. Hsu, K. Honscheid, J. E. Duboscq, K. W. Edwards, K. Bukin, A. Bean, I. Narsky, H. Kagan, J. B. Thayer, Veronique Boisvert, R. J. Morrison, Mats A Selen, C.Y. Prescott, A. J. Sadoff, Jianqiao Ye, D. L. Hartill, David Zeke Besson, F. R. Wappler, John Yelton, and R. Mahapatra
Subjects: Combinatorics, Physics, Particle decay, Particle properties, Meson, Branching fraction, General Physics and Astronomy, Production (computer science)
Abstract: Using $12.7{\mathrm{fb}}^{\ensuremath{-}1}$ of data collected with the CLEO detector at CESR, we observed two-photon production of the $c\overline{c}$ states ${\ensuremath{\chi}}_{c0}$ and ${\ensuremath{\chi}}_{c2}$ in their decay to ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$. We measured ${\ensuremath{\Gamma}}_{\ensuremath{\gamma}\ensuremath{\gamma}}({\ensuremath{\chi}}_{c})\ifmmode\times\else\texttimes\fi{}B({\ensuremath{\chi}}_{c}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})$ to be $75\ifmmode\pm\else\textpm\fi{}13(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}8(\mathrm{syst})\mathrm{eV}$ for the ${\ensuremath{\chi}}_{c0}$ and $6.4\ifmmode\pm\else\textpm\fi{}1.8(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.8(\mathrm{syst})\mathrm{eV}$ for the ${\ensuremath{\chi}}_{c2}$, implying ${\ensuremath{\Gamma}}_{\ensuremath{\gamma}\ensuremath{\gamma}}({\ensuremath{\chi}}_{c0})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}3.76\ifmmode\pm\else\textpm\fi{}0.65(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.41(\mathrm{syst})\ifmmode\pm\else\textpm\fi{}1.69(\mathrm{br})\mathrm{keV}$ and ${\ensuremath{\Gamma}}_{\ensuremath{\gamma}\ensuremath{\gamma}}({\ensuremath{\chi}}_{c2})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.53\ifmmode\pm\else\textpm\fi{}0.15(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.06(\mathrm{syst})\ifmmode\pm\else\textpm\fi{}0.22(\mathrm{br})\mathrm{keV}$. Also, cancellation of dominant experimental and theoretical uncertainties permits a precise comparison of ${\ensuremath{\Gamma}}_{\ensuremath{\gamma}\ensuremath{\gamma}}({\ensuremath{\chi}}_{c0})/{\ensuremath{\Gamma}}_{\ensuremath{\gamma}\ensuremath{\gamma}}({\ensuremath{\chi}}_{c2})$, evaluated to be $7.4\ifmmode\pm\else\textpm\fi{}2.4(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.5(\mathrm{syst})\ifmmode\pm\else\textpm\fi{}0.9(\mathrm{br})$, with QCD-based predictions.
Published: 2001
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507. Measurement of the decay asymmetry parameters inΞc0→Ξ−π+

Author: Z. Ling, I. P.J. Shipsey, R. Ehrlich, C. Qiao, S. L. Jones, R. Ammar, Y. Kwon, M. S. Alam, J. Dominick, M. Gao, S. Nakanishi, E. H. Thorndike, D. Coppage, J. P. Alexander, M. Ogg, W. R. Ross, H. Severini, S. Chan, H. P. Paar, J. Ernst, D. Z. Besson, H. Tajima, R. Fulton, E. R.F. Hyatt, C. O'Grady, M. Lattery, P. S. Drell, I. Volobouev, D. G. Cassel, D. Fujino, K. K. Gan, E. Nordberg, Jorge Luis Rodriguez, D. H. Miller, J. J. O'Neill, T. K. Nelson, J. Masui, C. R. Sun, W. T. Ford, B. Spaan, T. Skwarnicki, M. Saulnier, P. C. Kim, R. D. Kass, R. Balest, G. S. Ludwig, N. Kwak, D. Gibaut, M. Bishai, K. Lingel, Yurii V. Mukhin, J. Gronberg, P. Gaidarev, X. Fu, M. M. Zoeller, A. Wolf, N. Horwitz, Shengfeng Yang, R. Davis, Vivek Jain, B. Nemati, S. Kotov, S. Menary, Alain Bellerive, Dave Britton, R. L. McIlwain, M. Chadha, S. Sanghera, T. Liu, C. Bebek, B. Gittelman, T. Miao, Sheldon Stone, V. Shelkov, S. Schrenk, D. F. Cowen, P. M. Patel, N. Hancock, F. Muheim, Paul Avery, I. J. Kim, G. Zhu, J. Mevissen, D. B. MacFarlane, J. Kandaswamy, A. J. Weinstein, Marina Artuso, A. P. Freyberger, B. I. Eisenstein, S. E. Csorna, Ha Lam, J. D. Richman, H. N. Nelson, Shawn W. Henderson, D. M. Coffman, Richard Wilson, Alice Bean, S. Playfer, C. M. Daubenmier, Ryszard Stroynowski, R. Kutschke, B. K. Heltsley, J. K. Nelson, K. Kinoshita, B. C. Barish, P. Rankin, Kenneth Bloom, D. Riley, C. D. Jones, R. Mountain, J. Bartelt, G. D. Gollin, Chunjie Wang, B. Geiser, N. Katayama, G. Eigen, D. J. Dumas, D. Peterson, M. Goldberg, Yuichi Kubota, Maurice Garcia-Sciveres, D. L. Kreinick, M. Lohner, M. Sung, D. He, T. E. Browder, S. Roberts, Karl Berkelman, P. Skubic, M. Battle, L. Gibbons, E. Gerndt, K. W. Edwards, Anders Ryd, M. Athanas, Z. Egyed, D. Cinabro, D. Sperka, Ruifang Wang, S. Patton, T. Bergfeld, K. Cho, N. B. Mistry, Daniel Johnson, B. Ong, J. Fast, Christopher G. White, Pu Wang, G. C. Moneti, E. I. Shibata, Jungil Lee, M. L. Kelly, S. W. Gray, M. Procario, W. S. Brower, P. Pomianowski, Ilya Kravchenko, S. Salman, Michael Wood, J. W. Hinson, M. Modesitt, J. G. Smith, K. Honscheid, C. M. Korte, N. Copty, J. J. Thaler, M. Momayezi, M. Sapper, A. H. Mahmood, G. Wei, G. Masek, Juliet Ritchie Patterson, D. Payne, H. A. Cho, R. Poling, D. L. Hartill, C. R. Ng, Michael S. Witherell, D. S. Crowcroft, F. R. Wappler, G. Crawford, J. S. Miller, F. Butler, John Yelton, M. Lambrecht, H. Kagan, V. Savinov, Yoram Rozen, F. Würthwein, R. J. Morrison, Philip Baringer, Mats A Selen, A. J. Sadoff, H. Yamamoto, Xiangjun Xing, M.A. Palmer, and J. Urheim
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, media_common.quotation_subject, Hyperon, 01 natural sciences, Asymmetry, Charmed baryons, 0103 physical sciences, CP violation, Cornell Electron Storage Ring, 010306 general physics, media_common
Abstract: Using the CLEO II detector at the Cornell Electron Storage Ring we have measured the $\Xi_c^{0}$ decay asymmetry parameter in the decay $\Xi_c^{0} \to \Xi^{-} \pi^+$. We find $\alpha_{\Xi_c^{0}} \alpha_{\Xi} = 0.26 \pm 0.18{(stat)}^{+0.05}_{-0.04}{(syst)}$, using the world average value of $\alpha_{\Xi} = -0.456 \pm 0.014$ we obtain $\alpha_{\Xi_c^{0}} = -0.56 \pm 0.39{(stat)}^{+0.10}_{-0.09}{(syst)}$. The physically allowed range of a decay asymmetry parameter is $-1
Published: 2001
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508. Dalitz analysis of the decayD0→K−π+π0

Author: T. Skwarnicki, A. Anastassov, G. C. Moneti, S. B. Anderson, R. M. Hans, Andreas Warburton, T. O. Meyer, D. Riley, D. L. Kreinick, L. Hsu, M.A. Palmer, Y. S. Gao, S. Ahmed, D. Cinabro, G. H. A. Viehhauser, H. P. Paar, Werner Sun, C. Bebek, K. Honscheid, D. G. Cassel, L. K. Gibbons, M. Saleem, Veronique Boisvert, D. Hufnagel, S.C. Timm, A. D. Foland, B. Gittelman, M. Dubrovin, D. Z. Besson, C. Plager, E. Nordberg, Andrei Gritsan, E. A. Eckhart, J. E. Duboscq, K. W. Edwards, G. W. Brandenburg, A. Magerkurth, C. Sedlack, T. Bergfeld, T. E. Coan, T. S. Hill, R. Ehrlich, James E. Fast, V. Savinov, J. J. Thaler, Vitaliy Fadeyev, Sai-Juan Chen, A. H. Mahmood, D. Cronin-Hennessy, R. J. Wilson, S. J. Richichi, C.Y. Prescott, R. Baker, A. Wolf, Jiejun Wu, B. E. Berger, R. Poling, S. Kopp, F. Blanc, G. E. Gladding, P. Skubic, Alexander Ershov, S. Schuh, Alexander Undrus, Ryszard Stroynowski, Jianqiao Ye, G. J. Zhou, Sheldon Stone, Paul Avery, M. Lohner, T. Wlodek, Yuichi Kubota, J. J. O'Neill, P. I. Hopman, E. Dambasuren, Jing Wang, K. M. Ecklund, A. M. Smith, A. L. Lyon, S. E. Csorna, B. Valant-Spaight, K. Bukin, June Hyuk Lee, L. Jian, E. von Toerne, D. E. Jaffe, M. M. Zoeller, I. Karliner, D. H. Miller, Marina Artuso, B. I. Eisenstein, A. Bornheim, H. Stoeck, S. P. Pappas, M. S. Alam, P. S. Drell, Alice Bean, R. Godang, P. Gaidarev, M. Schmidtler, A. Shapiro, B. K. Heltsley, I. Narsky, I. Danko, A. Eppich, J. C. Williams, S. J. Lee, R. Ayad, Thomas Ferguson, G. D. Gollin, J. G. Thayer, Karl Berkelman, G. Masek, Juliet Ritchie Patterson, H. Schwarthoff, R. Janicek, R. Mountain, N. B. Mistry, Xiandong Zhao, A. Romano, M. Kostin, D. Y.J. Kim, Horst Severini, A. I. Rubiera, R. D. Kass, R. A. Briere, Gobinda Majumder, L. Ling, S. B. Athar, Yurii Maravin, J. Urheim, D. M. Asner, C. Gwon, P. M. Patel, Elliot Lipeles, J. Kandaswamy, J. A. Ernst, Hans J. Vogel, D. Peterson, K. W. McLean, A. J.R. Weinstein, C. Boulahouache, S. McGee, D. L. Hartill, V. Pavlunin, D. Urner, E. I. Shibata, Z. Xu, F. R. Wappler, T. K. Pedlar, E. H. Thorndike, G. Bonvicini, J. P. Alexander, John Yelton, R. Mahapatra, G. P. Chen, I. P. J. Shipsey, H. Kagan, Erik A. Johnson, C. D. Jones, J. B. Thayer, J. W. Hinson, T. Hart, R. J. Morrison, Mats A Selen, T. Riehle, R. Ammar, A. J. Sadoff, V. V. Frolov, S. W. Gray, M. A. Marsh, C. J. Stepaniak, and K. K. Gan
Subjects: Physics, Nuclear and High Energy Physics, Crystallography, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Dalitz plot, 010306 general physics, 01 natural sciences
Abstract: We use data collected with the CLEO II detector to perform a high-statistics measurement of the resonant substructure in ${D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0}$ decays. We find that the Dalitz plot is well represented by a combination of seven quasi-two-body decay channels $[{K}^{*0}{\ensuremath{\pi}}^{0},{K}^{\ensuremath{-}}\ensuremath{\rho},{K}^{*\ensuremath{-}}{\ensuremath{\pi}}^{+},{K}_{0}{(1430)}^{\ensuremath{-}}{\ensuremath{\pi}}^{+},{K}_{0}{(1430)}^{0}{\ensuremath{\pi}}^{0},{K}^{\ensuremath{-}}{\ensuremath{\rho}}^{+}(1700),$ and ${K}^{*}{(1680)}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}],$ plus a small non-resonant component. We see no evidence of a scalar $\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\kappa}}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ resonance in the mass range recently reported by other groups. Using the amplitudes and phases from this analysis, we calculate an integrated $\mathrm{CP}$ asymmetry of $\ensuremath{-}0.031\ifmmode\pm\else\textpm\fi{}0.086.$
Published: 2001
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509. Observation of B --> phiK and B --> phiK*

Author: R A, Briere, G P, Chen, T, Ferguson, H, Vogel, A, Gritsan, J P, Alexander, R, Baker, C, Bebek, B E, Berger, K, Berkelman, F, Blanc, V, Boisvert, D G, Cassel, P S, Drell, J E, Duboscq, K M, Ecklund, R, Ehrlich, P, Gaidarev, L, Gibbons, B, Gittelman, S W, Gray, D L, Hartill, B K, Heltsley, P I, Hopman, L, Hsu, C D, Jones, J, Kandaswamy, D L, Kreinick, M, Lohner, A, Magerkurth, T O, Meyer, N B, Mistry, E, Nordberg, M, Palmer, J R, Patterson, D, Peterson, D, Riley, A, Romano, J G, Thayer, D, Urner, B, Valant-Spaight, G, Viehhauser, A, Warburton, P, Avery, C, Prescott, A I, Rubiera, H, Stoeck, J, Yelton, G, Brandenburg, A, Ershov, D Y, Kim, R, Wilson, T, Bergfeld, B I, Eisenstein, J, Ernst, G E, Gladding, G D, Gollin, R M, Hans, E, Johnson, I, Karliner, M A, Marsh, C, Plager, C, Sedlack, M, Selen, J J, Thaler, J, Williams, K W, Edwards, R, Janicek, P M, Patel, A J, Sadoff, R, Ammar, A, Bean, D, Besson, X, Zhao, S, Anderson, V V, Frolov, Y, Kubota, S J, Lee, J J, O'Neill, R, Poling, T, Riehle, A, Smith, C J, Stepaniak, J, Urheim, S, Ahmed, M S, Alam, S B, Athar, L, Jian, L, Ling, M, Saleem, S, Timm, F, Wappler, A, Anastassov, E, Eckhart, K K, Gan, C, Gwon, T, Hart, K, Honscheid, D, Hufnagel, H, Kagan, R, Kass, T K, Pedlar, H, Schwarthoff, J B, Thayer, E, von Toerne, M M, Zoeller, S J, Richichi, H, Severini, P, Skubic, A, Undrus, V, Savinov, S, Chen, J, Fast, J W, Hinson, J, Lee, D H, Miller, E I, Shibata, I P, Shipsey, V, Pavlunin, D, Cronin-Hennessy, A L, Lyon, E H, Thorndike, T E, Coan, V, Fadeyev, Y S, Gao, Y, Maravin, I, Narsky, R, Stroynowski, J, Ye, T, Wlodek, M, Artuso, C, Boulahouache, K, Bukin, E, Dambasuren, G, Majumder, R, Mountain, S, Schuh, T, Skwarnicki, S, Stone, J C, Wang, A, Wolf, J, Wu, S, Kopp, M, Kostin, A H, Mahmood, S E, Csorna, I, Danko, K W, McLean, Z, Xu, R, Godang, G, Bonvicini, D, Cinabro, M, Dubrovin, S, McGee, G J, Zhou, A, Bornheim, E, Lipeles, S P, Pappas, M, Schmidtler, A, Shapiro, W M, Sun, A J, Weinstein, D E, Jaffe, R, Mahapatra, G, Masek, H P, Paar, D M, Asner, A, Eppich, T S, Hill, and R J, Morrison
Abstract: We have studied two-body charmless hadronic decays of B mesons into the final states straight phiK and phiK(*). Using 9.7 million BandBmacr; pairs collected with the CLEO II detector, we observe the decays B- --> phiK- and B0--> phiK(*0) with the following branching fractions: B(B--->phiK-) = (5.5(+2.1)(-1.8)+/-0.6)x10(-6) and B(B0--> phiK(*0)) = (11.5(+4.5+1.8)(-3.7-1.7))x10(-6). We also see evidence for the decays B0-->phiK0 and B---> phiK(*-). However, since the statistical significance is not overwhelming for these modes, we determine upper limits of
Published: 2001

510. Measurement of the lambda(+)(c) lifetime

Author: A H, Mahmood, S E, Csorna, I, Danko, K W, McLean, S, Márka, Z, Xu, R, Godang, K, Kinoshita, I C, Lai, S, Schrenk, G, Bonvicini, D, Cinabro, S, McGee, L P, Perera, G J, Zhou, E, Lipeles, S P, Pappas, M, Schmidtler, A, Shapiro, W M, Sun, A J, Weinstein, F, Würthwein, D E, Jaffe, G, Masek, H P, Paar, E M, Potter, S, Prell, V, Sharma, D M, Asner, A, Eppich, T S, Hill, R J, Morrison, H N, Nelson, R A, Briere, G P, Chen, B H, Behrens, W T, Ford, A, Gritsan, J, Roy, J G, Smith, J P, Alexander, R, Baker, C, Bebek, B E, Berger, K, Berkelman, F, Blanc, V, Boisvert, D G, Cassel, M, Dickson, P S, Drell, K M, Ecklund, R, Ehrlich, A D, Foland, P, Gaidarev, R S, Galik, L, Gibbons, B, Gittelman, S W, Gray, D L, Hartill, B K, Heltsley, P I, Hopman, C D, Jones, J, Kandaswamy, D L, Kreinick, M, Lohner, A, Magerkurth, T O, Meyer, N B, Mistry, E, Nordberg, J R, Patterson, D, Peterson, D, Riley, J G, Thayer, D, Urner, B, Valant-Spaight, A, Warburton, P, Avery, C, Prescott, A I, Rubiera, J, Yelton, J, Zheng, G, Brandenburg, A, Ershov, Y S, Gao, D Y, Kim, R, Wilson, T E, Browder, Y, Li, J L, Rodriguez, H, Yamamoto, T, Bergfeld, B I, Eisenstein, J, Ernst, G E, Gladding, G D, Gollin, R M, Hans, E, Johnson, I, Karliner, M A, Marsh, M, Palmer, C, Plager, C, Sedlack, M, Selen, J J, Thaler, J, Williams, K W, Edwards, R, Janicek, P M, Patel, A J, Sadoff, R, Ammar, A, Bean, D, Besson, R, Davis, N, Kwak, X, Zhao, S, Anderson, V V, Frolov, Y, Kubota, S J, Lee, R, Mahapatra, J J, O'Neill, R, Poling, T, Riehle, A, Smith, C J, Stepaniak, J, Urheim, S, Ahmed, M S, Alam, S B, Athar, L, Jian, L, Ling, M, Saleem, S, Timm, F, Wappler, A, Anastassov, J E, Duboscq, E, Eckhart, K K, Gan, C, Gwon, T, Hart, K, Honscheid, D, Hufnagel, H, Kagan, R, Kass, T K, Pedlar, H, Schwarthoff, J B, Thayer, E, von Toerne, M M, Zoeller, S J, Richichi, H, Severini, P, Skubic, A, Undrus, S, Chen, J, Fast, J W, Hinson, J, Lee, D H, Miller, E I, Shibata, I P, Shipsey, V, Pavlunin, D, Cronin-Hennessy, A L, Lyon, E H, Thorndike, C P, Jessop, H, Marsiske, M L, Perl, V, Savinov, X, Zhou, T E, Coan, V, Fadeyev, Y, Maravin, I, Narsky, R, Stroynowski, J, Ye, T, Wlodek, M, Artuso, R, Ayad, C, Boulahouache, K, Bukin, E, Dambasuren, S, Karamov, G, Majumder, G C, Moneti, R, Mountain, S, Schuh, T, Skwarnicki, S, Stone, G, Viehhauser, J C, Wang, A, Wolf, J, Wu, and S, Kopp
Subjects: High Energy Physics::Experiment
Abstract: The Lambda+c lifetime is measured using 9.0 fb(-1) of e+e- annihilation data collected on or just below the Upsilon(4S) resonance with the CLEO II.V detector at CESR. Using an unbinned maximum likelihood fit, the Lambda+c lifetime is measured to be 179.6+/-6.9(stat)+/-4.4(syst) fs. The precision of this colliding beam measurement is comparable to other measurements, which are based on fixed-target experiments, with different systematic uncertainties.
Published: 2001

511. Measurement of the relative branching fraction of upsilon(4S) to charged and neutral B-meson pairs

Author: J P, Alexander, R, Baker, C, Bebek, B E, Berger, K, Berkelman, F, Blanc, V, Boisvert, D G, Cassel, M, Dickson, P S, Drell, K M, Ecklund, R, Ehrlich, A D, Foland, P, Gaidarev, L, Gibbons, B, Gittelman, S W, Gray, D L, Hartill, B K, Heltsley, P I, Hopman, C D, Jones, D L, Kreinick, M, Lohner, A, Magerkurth, T O, Meyer, N B, Mistry, E, Nordberg, J R, Patterson, D, Peterson, D, Riley, J G, Thayer, P G, Thies, B, Valant-Spaight, A, Warburton, P, Avery, C, Prescott, A I, Rubiera, J, Yelton, J, Zheng, G, Brandenburg, A, Ershov, Y S, Gao, D Y, Kim, R, Wilson, T E, Browder, Y, Li, J L, Rodriguez, H, Yamamoto, T, Bergfeld, B I, Eisenstein, J, Ernst, G E, Gladding, G D, Gollin, R M, Hans, E, Johnson, I, Karliner, M A, Marsh, M, Palmer, C, Plager, C, Sedlack, M, Selen, J J, Thaler, J, Williams, K W, Edwards, R, Janicek, P M, Patel, A J, Sadoff, R, Ammar, A, Bean, D, Besson, R, Davis, N, Kwak, X, Zhao, S, Anderson, V V, Frolov, Y, Kubota, S J, Lee, R, Mahapatra, J J, O'Neill, R, Poling, T, Riehle, A, Smith, J, Urheim, S, Ahmed, M S, Alam, S B, Athar, L, Jian, L, Ling, A H, Mahmood, M, Saleem, S, Timm, F, Wappler, A, Anastassov, J E, Duboscq, E, Eckhart, K K, Gan, C, Gwon, T, Hart, K, Honscheid, D, Hufnagel, H, Kagan, R, Kass, T K, Pedlar, H, Schwarthoff, J B, Thayer, E, von Toerne, M M, Zoeller, S J, Richichi, H, Severini, P, Skubic, A, Undrus, S, Chen, J, Fast, J W, Hinson, J, Lee, N, Menon, D H, Miller, E I, Shibata, I P, Shipsey, V, Pavlunin, D, Cronin-Hennessy, Y, Kwon, A L, Lyon, E H, Thorndike, C P, Jessop, H, Marsiske, M L, Perl, V, Savinov, D, Ugolini, X, Zhou, T E, Coan, V, Fadeyev, Y, Maravin, I, Narsky, R, Stroynowski, J, Ye, T, Wlodek, M, Artuso, R, Ayad, C, Boulahouache, K, Bukin, E, Dambasuren, S, Karamov, G, Majumder, G C, Moneti, R, Mountain, S, Schuh, T, Skwarnicki, S, Stone, G, Viehhauser, J C, Wang, A, Wolf, J, Wu, S, Kopp, S E, Csorna, I, Danko, K W, McLean, S, Márka, Z, Xu, R, Godang, K, Kinoshita, I C, Lai, S, Schrenk, G, Bonvicini, D, Cinabro, S, McGee, L P, Perera, G J, Zhou, E, Lipeles, M, Schmidtler, A, Shapiro, W M, Sun, A J, Weinstein, F, Würthwein, D E, Jaffe, G, Masek, H P, Paar, E M, Potter, S, Prell, V, Sharma, D M, Asner, A, Eppich, T S, Hill, R J, Morrison, R A, Briere, B H, Behrens, W T, Ford, A, Gritsan, J, Roy, and J G, Smith
Abstract: We analyze 9.7x10(6) B_B pairs recorded with the CLEO detector to determine the production ratio of charged to neutral B-meson pairs produced at the Upsilon(4S) resonance. We measure the rates for B0-->J/psiK((*)0) and B+-->J/psiK((*)+) decays and use the world-average B-meson lifetime ratio to extract the relative widths f(+-) / f(00) = gamma(Upsilon(4S)-->B+B-) / gamma(Upsilon(4S)-->B0 B-0)) = 1.04+/-0.07(stat)+/-0.04(syst). With the assumption that f(+-)+f(00) = 1, we obtain f(00) = 0.49+/-0.02(stat)+/-0.01(syst) and f(+-) = 0.51+/-0.02(stat)+/-0.01(syst). This production ratio and its uncertainty apply to all exclusive B-meson branching fractions measured at the Upsilon(4S) resonance.
Published: 2001

512. Search forCPviolation inD0→KS0π0,D0→π0π0andD0→KS0KS0decays

Author: D. Riley, S. P. Pappas, C. Bebek, E. Eckhart, Y. S. Gao, D. L. Hartill, M. Dubrovin, C. Sedlack, C. Plager, S. Anderson, T. Wlodek, A. Magerkurth, Jiejun Wu, E. von Toerne, J. J. O'Neill, P. Skubic, R. Mahapatra, Yuichi Kubota, Karl Berkelman, D. E. Jaffe, F. R. Wappler, J. B. Thayer, L. Jian, J. Williams, L. Ling, L. Hsu, M. Saleem, Marina Artuso, P. S. Drell, Thomas Ferguson, J. Ernst, I. Danko, A. Ershov, K. Honscheid, D. Cinabro, B. Gittelman, R. Janicek, T. K. Pedlar, Sheldon Stone, Paul Avery, S. Ahmed, C.Y. Prescott, D. G. Cassel, K. Bukin, John Yelton, E. Dambasuren, T. Hart, E. H. Thorndike, Z. Xu, Sacha E Kopp, M. S. Alam, Richard Wilson, A. Gritsan, A. H. Mahmood, G. Bonvicini, Jing Wang, H. Kagan, T. O. Meyer, G. Majumder, J. P. Alexander, Jianqiao Ye, J. Kandaswamy, S. Schuh, T. Riehle, Daniel P Cronin-Hennessy, W. M. Sun, Ryszard Stroynowski, C. D. Jones, R. Poling, V. Pavlunin, I. Karliner, I. Narsky, A. I. Rubiera, R. D. Kass, D. Hufnagel, D. Peterson, R. J. Morrison, K. W. McLean, B. E. Berger, Mats A Selen, T. S. Hill, R. Ehrlich, D. H. Miller, B. I. Eisenstein, A. J. Sadoff, S. W. Gray, Alice Bean, J. E. Duboscq, Yurii Maravin, A. Shapiro, L. D. Borum, George D Gollin, D. Z. Besson, Shuai Chen, A. Anastassov, Jason Sang Hun Lee, R. Baker, G. Masek, Juliet Ritchie Patterson, M. Gramaglia, P. Gaidarev, D. M. Asner, V. Boisvert, A. Eppich, G. Viehhauser, C. Gwon, M. Lohner, L. K. Gibbons, V. V. Frolov, N. B. Mistry, P. M. Patel, J. G. Thayer, A. Undrus, I. P.J. Shipsey, D. Urner, E. I. Shibata, J. Fast, H. Schwarthoff, Horst Severini, K. K. Gan, G. P. Chen, R. Godang, M. Schmidtler, H. Stoeck, R. A. Briere, K. W. Edwards, E. Johnson, M. Kostin, A. Smith, D. Y.J. Kim, R. Mountain, A. Romano, J. W. Hinson, T. Bergfeld, R. M. Hans, F. Blanc, G. E. Gladding, Andreas Warburton, C. Boulahouache, P. I. Hopman, S. McGee, S. E. Csorna, S.C. Timm, G. W. Brandenburg, M. M. Zoeller, J. Urheim, K. M. Ecklund, A. L. Lyon, Hans J. Vogel, B. K. Heltsley, E. Lipeles, S. J. Lee, D. L. Kreinick, V. Savinov, A. Wolf, S. B. Athar, C. J. Stepaniak, R. Ammar, M. A. Marsh, T. E. Coan, A. J. Weinstein, J. J. Thaler, Tomasz Skwarnicki, S. J. Richichi, X. Zhao, G. J. Zhou, A. Bornheim, H. P. Paar, M.A. Palmer, E. Nordberg, V. Fadeyev, and B. Valant-Spaight
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, 0103 physical sciences, CP violation, 010306 general physics, 01 natural sciences
Published: 2001
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513. Search for a scalar bottom quark with mass 3.5–4.5GeV/c2

Author: V. Savinov, T. E. Coan, V. Fadeyev, Y. S. Gao, Y. Maravin, I. Narsky, R. Stroynowski, J. Ye, T. Wlodek, M. Artuso, R. Ayad, C. Boulahouache, K. Bukin, E. Dambasuren, S. Karamov, G. Majumder, G. C. Moneti, R. Mountain, S. Schuh, T. Skwarnicki, S. Stone, J. C. Wang, A. Wolf, J. Wu, S. Kopp, M. Kostin, A. H. Mahmood, S. E. Csorna, I. Danko, K. W. McLean, Z. Xu, R. Godang, G. Bonvicini, D. Cinabro, M. Dubrovin, S. McGee, G. J. Zhou, E. Lipeles, S. P. Pappas, M. Schmidtler, A. Shapiro, W. M. Sun, A. J. Weinstein, F. Würthwein, D. E. Jaffe, G. Masek, H. P. Paar, E. M. Potter, S. Prell, D. M. Asner, A. Eppich, T. S. Hill, R. J. Morrison, R. A. Briere, G. P. Chen, A. Gritsan, J. P. Alexander, R. Baker, C. Bebek, B. E. Berger, K. Berkelman, F. Blanc, V. Boisvert, D. G. Cassel, P. S. Drell, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, A. D. Foland, P. Gaidarev, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, L. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, M. Lohner, A. Magerkurth, T. O. Meyer, N. B. Mistry, E. Nordberg, M. Palmer, J. R. Patterson, D. Peterson, D. Riley, A. Romano, J. G. Thayer, D. Urner, B. Valant-Spaight, G. Viehhauser, A. Warburton, P. Avery, C. Prescott, A. I. Rubiera, H. Stoeck, J. Yelton, G. Brandenburg, A. Ershov, D. Y.-J. Kim, R. Wilson, T. Bergfeld, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, R. Janicek, P. M. Patel, A. J. Sadoff, R. Ammar, A. Bean, D. Besson, X. Zhao, S. Anderson, V. V. Frolov, Y. Kubota, S. J. Lee, R. Mahapatra, J. J. O’Neill, R. Poling, T. Riehle, A. Smith, C. J. Stepaniak, J. Urheim, S. Ahmed, M. S. Alam, S. B. Athar, L. Jian, L. Ling, M. Saleem, S. Timm, F. Wappler, A. Anastassov, E. Eckhart, K. K. Gan, C. Gwon, T. Hart, K. Honscheid, D. Hufnagel, R. Kass, T. K. Pedlar, H. Schwarthoff, J. B. Thayer, E. von Toerne, M. M. Zoeller, S. J. Richichi, H. Severini, P. Skubic, A. Undrus, S. Chen, J. Fast, J. W. Hinson, J. Lee, D. H. Miller, E. I. Shibata, I. P. J. Shipsey, V. Pavlunin, D. Cronin-Hennessy, A. L. Lyon, and E. H. Thorndike
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Meson, 010308 nuclear & particles physics, Bar (music), Electron–positron annihilation, High Energy Physics::Phenomenology, Scalar (mathematics), 01 natural sciences, Bottom quark, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We report on a search for a supersymmetric $\tilde{B}$ meson with mass between 3.5 and 4.5 GeV/$c^2$ using 4.52 ${\rm fb}^{-1}$ of integrated luminosity produced at $\sqrt{s}=10.52$ GeV, just below the $e^+e^-\to B\bar{B}$ threshold, and collected with the CLEO detector. We find no evidence for a light scalar bottom quark.
Published: 2001
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514. Study ofB→ψ(2S)KandB→ψ(2S)K*(892)decays

Author: J. Zheng, S.C. Timm, J. R. Patterson, C. Sedlack, Y. S. Gao, Xingjiang Zhou, K. Bukin, I. Danko, Jiejun Wu, M. Dickson, Frank Würthwein, G. Viehhauser, T. K. Pedlar, N. B. Mistry, Vivek Sharma, A. Smith, P. Skubic, E. von Toerne, J. J. O'Neill, X. Zhao, J. Kandaswamy, D. Riley, T. O. Meyer, J. Roy, W. M. Sun, D. Cinabro, Ryszard Stroynowski, D. E. Jaffe, B. Gittelman, J. Urheim, C. D. Jones, D. Peterson, K. W. McLean, D. G. Cassel, L. P. Perera, A. H. Mahmood, L. Ling, V. Savinov, A. Ershov, T. S. Hill, R. Ehrlich, G. Masek, D. Z. Besson, B. E. Berger, M. L. Perl, Karl Berkelman, E. H. Thorndike, I. Karliner, M. Saleem, R. Ayad, W. T. Ford, A. I. Rubiera, R. D. Kass, K. W. Edwards, I. Narsky, Yuichi Kubota, S. P. Pappas, C. Bebek, E. M. Potter, P. I. Hopman, E. Eckhart, P. S. Drell, K. K. Gan, L. Jian, Z. Xu, B. I. Eisenstein, M.A. Palmer, G. Bonvicini, J. P. Alexander, E. Dambasuren, Jing Wang, G. Majumder, J. Ernst, Yurii Maravin, T. Wlodek, A. D. Foland, Sz Márka, D. M. Asner, C. Gwon, M. Lohner, H. Marsiske, Marina Artuso, I. P.J. Shipsey, V. Fadeyev, H. Yamamoto, P. M. Patel, Horst Severini, R. M. Hans, R. Davis, J. G. Thayer, B. Valant-Spaight, T. Hart, D. H. Miller, J. Williams, T. Bergfeld, R. Godang, M. Schmidtler, L. K. Gibbons, V. V. Frolov, R. Ammar, D. Hufnagel, John Yelton, R. Mahapatra, H. P. Paar, Richard Wilson, A. Gritsan, P. Gaidarev, M. M. Zoeller, T. E. Browder, J. L. Rodriguez, K. Honscheid, A. Wolf, H. Kagan, Sacha E Kopp, I. C. Lai, A. Undrus, M. S. Alam, Andreas Warburton, Sheldon Stone, R. Janicek, R. Mountain, J. E. Duboscq, Paul Avery, B. H. Behrens, G. C. Moneti, J. Fast, D. Y.J. Kim, J. J. Thaler, S. B. Athar, M. A. Marsh, H. Schwarthoff, Shuai Chen, A. Anastassov, R. Poling, V. Pavlunin, Daniel P Cronin-Hennessy, C.Y. Prescott, D. Urner, E. I. Shibata, A. Shapiro, R. J. Morrison, R. Baker, Mats A Selen, T. Riehle, S. E. Csorna, S. Schuh, Jianqiao Ye, A. J. Sadoff, C. J. Stepaniak, E. Johnson, D. L. Hartill, K. Kinoshita, C. Plager, S. Anderson, N. Kwak, Alice Bean, E. Nordberg, Jason Sang Hun Lee, G. W. Brandenburg, A. Magerkurth, V. Boisvert, A. Eppich, T. E. Coan, S. Ahmed, A. J. Weinstein, S. W. Gray, F. R. Wappler, C. Boulahouache, Tomasz Skwarnicki, S. Karamov, J. B. Thayer, S. McGee, G. P. Chen, H. N. Nelson, S. J. Richichi, R. A. Briere, J. W. Hinson, S. Schrenk, J. G. Smith, C. P. Jessop, G. J. Zhou, S. Prell, D. L. Kreinick, Y. Li, B. K. Heltsley, E. Lipeles, S. J. Lee, G. D. Gollin, F. Blanc, G. E. Gladding, K. M. Ecklund, and A. L. Lyon
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, 010306 general physics, 01 natural sciences
Abstract: Color-suppressed decays of $B$ mesons to final states with $\psi(2S)$ mesons have been observed with the CLEO detector. The branching fractions for the decays $B^+ \to \psi(2S) K^+$, $B^+ \to \psi(2S) K^*(892)^+$, $B^0 \to \psi(2S) K^0$, and $B^0 \to \psi(2S) K^*(892)^0$ are measured to be (7.8 +- 0.7 +- 0.9) 10^{-4}$, (9.2 +- 1.9 +- 1.2) 10^{-4}$, (5.0 +- 1.1 +- 0.6) 10^{-4}$, and (7.6 +- 1.1 +- 1.0) 10^{-4}$, respectively, where the first uncertainty is statistical and the second is systematic. The first measurement of the longitudinal polarization fraction is extracted from the angular analysis of the $B \to \psi(2S) K^*(892)$ candidates: $\Gamma_L / \Gamma = 0.45 +- 0.11 +- 0.04 $. Our measurements of the decays $B^0 \to \psi(2S) K^0$ and $B^+ \to \psi(2S) K^*(892)^+$ are first observations.
Published: 2001
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515. Study ofχc1andχc2meson production inBmeson decays

Author: E. Lipeles, J. Ye, V. Boisvert, A. I. Rubiera, George D Gollin, E. Eckhart, P. M. Patel, D. Urner, N. B. Mistry, S. Prell, S. J. Lee, M. Kostin, I. Danko, S. Ahmed, G. J. Zhou, J. Fast, J. Williams, S. Timm, I. P.J. Shipsey, T. Bergfeld, S. B. Athar, G. P. Chen, V. Fadeyev, J. Urheim, A. Ershov, C. Plager, S. Anderson, C. D. Jones, P. S. Drell, S. E. Csorna, M. Schmidtler, K. K. Gan, Y. Maravin, C. J. Stepaniak, D. M. Asner, D. Besson, D. G. Cassel, D. L. Kreinick, R. Mountain, B. E. Berger, B. Valant-Spaight, R. Mahapatra, G. E. Gladding, G. Brandenburg, A. Smith, P. Skubic, H. Kagan, J. R. Patterson, J. B. Thayer, J. E. Duboscq, D. H. Miller, E. M. Potter, C. Prescott, I. Narsky, M. M. Zoeller, D. E. Jaffe, Sheldon Stone, J. Kandaswamy, R. Ehrlich, Y. S. Gao, T. K. Pedlar, J. J. Thaler, M. A. Marsh, A. J. Weinstein, P. Gaidarev, J. Wu, V. Savinov, F. Wappler, E. Nordberg, K. W. Edwards, S. Karamov, Z. Xu, Mats A Selen, G. Viehhauser, K. Honscheid, M. Palmer, S. McGee, J. G. Thayer, R. M. Hans, Robert Wilson, M. Dubrovin, J. P. Alexander, K. Bukin, Jason Sang Hun Lee, J. Yelton, D. Cinabro, A. Eppich, P. I. Hopman, K. W. McLean, E. Johnson, E. von Toerne, H. Yamamoto, G. Bonvicini, G. Masek, D. Cronin-Hennessy, D. Y.J. Kim, A. Gritsan, R. Baker, B. Gittelman, T. S. Hill, L. Hsu, H. Severini, R. Godang, S. W. Gray, L. Ling, V. V. Frolov, C. Boulahouache, R. Poling, R. Ammar, K. M. Ecklund, S. Kopp, A. Magerkurth, D. Riley, J. W. Hinson, V. Pavlunin, I. Karliner, R. J. Morrison, C. Gwon, D. L. Hartill, J. C. Wang, J. Ernst, M. Artuso, H. Stoeck, B. I. Eisenstein, S. Schuh, D. Peterson, A. Bean, L. Jian, T. Skwarnicki, A. Undrus, L. Gibbons, R. Janicek, R. Stroynowski, R. A. Briere, X. Zhao, M. S. Alam, B. K. Heltsley, T. O. Meyer, H. Schwarthoff, R. Kass, C. Sedlack, A. Anastassov, F. Blanc, R. Ayad, T. Wlodek, A. L. Lyon, A. D. Foland, S. J. Richichi, P. Avery, E. H. Thorndike, E. I. Shibata, D. Hufnagel, C. Bebek, F. Würthwein, E. Dambasuren, S. P. Pappas, T. E. Coan, A. Shapiro, Shuai Chen, A. Romano, J. J. O’Neill, M. Lohner, G. Majumder, A. J. Sadoff, A. Wolf, A. H. Mahmood, Yuichi Kubota, H. P. Paar, W. M. Sun, G. C. Moneti, T. Hart, T. Riehle, K. Berkelman, M. Saleem, and A. Warburton
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson production, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Strangeness production, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, B meson, 010306 general physics
Abstract: Using a sample of 9.7 million B meson pairs collected with the CLEO detector, we study B decays to the chi_c1 and chi_c2 charmonia states, which are reconstructed via their radiative decays to J/psi. We first measure the branching fraction for inclusive chi_c1 production in B decays to be Br(B->chi_c1 X)=(4.14+-0.31+-0.40)*10^-3, where the first uncertainty is statistical and the second one is systematic. We derive the branching fractions for direct chi_c1 and chi_c2 production in B decays by subtracting the known contribution of the decay chain B->psi(2S)X with psi(2S)->chi_c1,2 gamma. We obtain Br[B->chi_c1(direct) X]=(3.83+-0.31+-0.40)*10^-3. No statistically significant signal for chi_c2 production is observed in either case. Using the Feldman-Cousins approach, we determine the 95% confidence intervals to be [0.2, 2.0]*10^-3 for Br(B->chi_c2 X), [0.0,1.7]*10^-3 for Br[B->chi_c2(direct) X], and [0.00,0.44] for the ratio Br[B->chi_c2(direct) X]/Br[B->chi_c1(direct) X]. We also measure the branching ratio Br[B->chi_c2(direct) X_s]/Br[B->chi_c1(direct) X_s] for different X_s configurations by reconstructing B decays into exclusive final states with J/psi, a photon, a kaon, and up to four pions. For all the X_s configurations we observe a strong chi_c1 signal yet no statistically significant chi_c2 signal. We discuss how our results compare with theoretical predictions in different models of charmonium production.
Published: 2001
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516. Measurement of the integrated luminosities of the data taken by BESIII at √ s = 3.650 and 3.773 GeV

Author: M. Ablikim, M. N. Achasov, O. Albayrak, D. J. Ambrose, F. F. An, Q. An, J. Z. Bai, R. Baldini Ferroli, Y. Ban, J. Becker, J. V. Bennett, M. Bertani, J. M. Bian, E. Boger, O. Bondarenko, I. Boyko, S. Braun, R. A. Briere, V. Bytev, H. Cai, X. Cai, O. Cakir, A. Calcaterra, G. F. Cao, S. A. Cetin, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, J. C. Chen, M. L. Chen, S. J. Chen, X. R. Chen, Y. B. Chen, H. P. Cheng, Y. P. Chu, D. Cronin-Hennessy, H. L. Dai, J. P. Dai, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, W. M. Ding, Y. Ding, L. Y. Dong, M. Y. Dong, S. X. Du, J. Fang, S. S. Fang, L. Fava, C. Q. Feng, P. Friedel, C. D. Fu, J. L. Fu, O. Fuks, Y. Gao, C. Geng, K. Goetzen, W. X. Gong, W. Gradl, M. Greco, M. H. Gu, Y. T. Gu, Y. H. Guan, A. Q. Guo, L. B. Guo, T. Guo, Y. P. Guo, Y. L. Han, F. A. Harris, K. L. He, M. He, Z. Y. He, T. Held, Y. K. Heng, Z. L. Hou, C. Hu, H. M. Hu, J. F. Hu, T. Hu, G. M. Huang, G. S. Huang, J. S. Huang, L. Huang, X. T. Huang, Y. Huang, T. Hussain, C. S. Ji, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, L. L. Jiang, X. S. Jiang, J. B. Jiao, Z. Jiao, D. P. Jin, S. Jin, F. F. Jing, N. Kalantar-Nayestanaki, M. Kavatsyuk, B. Kloss, B. Kopf, M. Kornicer, W. Kuehn, W. Lai, J. S. Lange, M. Lara, P. Larin, M. Leyhe, C. H. Li, Cheng Li, Cui Li, D. M. Li, F. Li, G. Li, H. B. Li, J. C. Li, K. Li, Lei Li, P. R. Li, Q. J. Li, W. D. Li, W. G. Li, X. L. Li, X. N. Li, X. Q. Li, X. R. Li, Z. B. Li, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, D. X. Lin(Lin), B. J. Liu, C. L. Liu, C. X. Liu, F. H. Liu, Fang Liu, Feng Liu, H. B. Liu, H. H. Liu, H. M. Liu, J. P. Liu, K. Liu, K. Y. Liu, P. L. Liu, Q. Liu, S. B. Liu, X. Liu, Y. B. Liu, Z. A. Liu, Zhiqiang Liu, Zhiqing Liu, H. Loehner, X. C. Lou, G. R. Lu, H. J. Lu, J. G. Lu, X. R. Lu, Y. P. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, M. Lv, F. C. Ma, H. L. Ma, Q. M. Ma, S. Ma, T. Ma, X. Y. Ma, F. E. Maas, M. Maggiora, Q. A. Malik, Y. J. Mao, Z. P. Mao, J. G. Messchendorp, J. Min, T. J. Min, R. E. Mitchell, X. H. Mo, H. Moeini, C. Morales Morales, K. Moriya, N. Yu. Muchnoi, H. Muramatsu, Y. Nefedov, I. B. Nikolaev, Z. Ning, S. Nisar, S. L. Olsen, Q. Ouyang, S. Pacetti, J. W. Park, M. Pelizaeus, H. P. Peng, K. Peters, J. L. Ping, R. G. Ping, R. Poling, E. Prencipe, M. Qi, S. Qian, C. F. Qiao, L. Q. Qin, X. S. Qin, Y. Qin, Z. H. Qin, J. F. Qiu, K. H. Rashid, C. F. Redmer, G. Rong, X. D. Ruan, A. Sarantsev, M. Shao, C. P. Shen, X. Y. Shen, H. Y. Sheng, M. R. Shepherd, W. M. Song, X. Y. Song, S. Spataro, B. Spruck, G. X. Sun, J. F. Sun, S. S. Sun, Y. J. Sun, Y. Z. Sun, Z. J. Sun, Z. T. Sun, C. J. Tang, X. Tang, I. Tapan, E. H. Thorndike, D. Toth, M. Ullrich, I. Uman, G. S. Varner, B. Wang, D. Wang, D. Y. Wang, K. Wang, L. L. Wang, L. S. Wang, M. Wang, P. Wang, P. L. Wang, Q. J. Wang, S. G. Wang, X. F. Wang, X. L. Wang, Y. D. Wang, Y. F. Wang, Y. Q. Wang, Z. Wang, Z. G. Wang, Z. H. Wang, Z. Y. Wang, D. H. Wei, J. B. Wei, P. Weidenkaff, Q. G. Wen, S. P. Wen, M. Werner, U. Wiedner, L. H. Wu, N. Wu, S. X. Wu, W. Wu, Z. Wu, L. G. Xia, Y. X Xia, Z. J. Xiao, Y. G. Xie, Q. L. Xiu, G. F. Xu, Q. J. Xu, Q. N. Xu, X. P. Xu, Z. R. Xu, Z. Xue, L. Yan, W. B. Yan, W. C Yan, Y. H. Yan, H. X. Yang, Y. Yang, Y. X. Yang, H. Ye, M. Ye, M. H. Ye, B. X. Yu, C. X. Yu, H. W. Yu, J. S. Yu, S. P. Yu, C. Z. Yuan, Y. Yuan, A. A. Zafar, A. Zallo, S. L. Zang, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. Zhang, C. C. Zhang, D. H. Zhang, H. H. Zhang, H. Y. Zhang, J. Q. Zhang, J. W. Zhang, J. Y. Zhang, J. Z. Zhang, Lili Zhang, S. H. Zhang, X. J. Zhang, X. Y. Zhang, Y. Zhang, Y. H. Zhang, Z. P. Zhang, Z. Y. Zhang, Zhenghao Zhang, G. Zhao, J. W. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, Q. Zhao, S. J. Zhao, T. C. Zhao, X. H. Zhao, Y. B. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, Y. H. Zheng, B. Zhong, L. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, K. Zhu, K. J. Zhu, X. L. Zhu, Y. C. Zhu, Y. S. Zhu, Z. A. Zhu, J. Zhuang, B. S. Zou, J. H. Zou, Doğuş Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümü, TR3959, Çetin, Serkant Ali, and Research unit Nuclear & Hadron Physics
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Scattering, Detector, POTENTIALS, VECTOR, Astronomy and Astrophysics, Bhabha Scattering Events, Cross Section, UPPER-BOUNDS, law.invention, Nuclear physics, Integrated Luminosity, law, KLEIN-GORDON EQUATION, Collider, Instrumentation, Bhabha scattering
Abstract: Data sets were collected with the BESIII detector at the BEPC II collider at the center-of-mass energy of root s=3.650 GeV during May 2009 and at root s=3.773 GeV from January 2010 to May 2011. By analyzing the large angle Bhabha scattering events, the integrated luminosities of the two data sets are measured to be (44.49 +/- 0.02 +/- 0.44) pb(-1) and (2916.94 +/- 0.18 +/- 29.17) pb(-1), respectively, where the first error is statistical and the second error is systematic.
Published: 2013
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517. Measurement of the product branching fractionB(c→ΘcX)×B(Θc→ΛX)

Author: J. Urheim, T. O. Meyer, T. Hart, P. G. Thies, E. I. Shibata, D. E. Jaffe, I. Robertson, E. Johnson, G. Masek, J. Zheng, L. Ling, A. D. Foland, Juliet Ritchie Patterson, Richard L. Greene, K. K. Gan, T. Riehle, H. Kagan, J. J. Thaler, J. Gronberg, E. Dambasuren, N. Menon, H. Marsiske, D. Ugolini, E. H. Thorndike, N. Kwak, M. Bishai, S. W. Gray, H. P. Paar, S.C. Timm, X. J. Zhou, Horst Severini, L. K. Gibbons, V. V. Frolov, J. Williams, A. Ershov, G. C. Moneti, Jing Wang, G. Majumder, R. Davis, Y. Kwon, V. Savinov, Shuai Chen, A. Anastassov, Vivek Sharma, I. Korolkov, Philip Baringer, S. Schrenk, A. Smith, Yanwen Liu, J. G. Smith, C. P. Jessop, R. J. Morrison, V. Fadeyev, S. Prell, D. Z. Besson, Mats A Selen, F. Blanc, R. Ammar, A. J. Sadoff, R. Baker, D. L. Hartill, R. A. Briere, I. C. Lai, S. Chan, C. Plager, S. Anderson, H. Krieg, R. Poling, G. E. Gladding, C. R. Ng, P. Pomianowski, E. Nordberg, G. Bonvicini, J. P. Alexander, Dj Lange, Yurii Maravin, M. Lohner, S. Schuh, Ilya Kravchenko, M. A. Marsh, A. Shapiro, B. Valant-Spaight, R. M. Hans, F. R. Wappler, T. K. Nelson, J. W. Hinson, D. H. Miller, I. P.J. Shipsey, A. Titov, M.A. Palmer, Y. S. Gao, John Yelton, R. Mahapatra, K. M. Ecklund, M. M. Zoeller, Sacha E Kopp, M. S. Alam, A. L. Lyon, Andreas Warburton, C. Sedlack, J. Lorenc, G. J. Zhou, A. Wolf, H. Bull, J. Roy, L. P. Perera, W. M. Sun, D. Peterson, K. W. McLean, Jiejun Wu, P. Gaidarev, Yang Li, X. Zhao, T. S. Hill, P. Skubic, T. E. Coan, S. B. Athar, L. Jian, R. Stroynovvski, A. J. Weinstein, R. Ehrlich, Tomasz Skwarnicki, Karl Berkelman, M. Dickson, M. Saleem, H. Yamamoto, A. H. Mahmood, S. J. Richichi, J. L. Rodriguez, Marina Artuso, I. Narsky, Frank Würthwein, G. Viehhauser, Z. Xu, B. K. Heltsley, N. B. Mistry, E. Lipeles, D. Y.J. Kim, Sz Márka, S. J. Lee, Alice Bean, A. Undrus, G. D. Gollin, D. L. Kreinick, P. Brabant, T. E. Browder, Jason Sang Hun Lee, K. Honscheid, V. Boisvert, C. D. Jones, A. Eppich, J. E. Duboscq, Sheldon Stone, Paul Avery, B. E. Berger, R. Ayad, E. M. Potter, P. I. Hopman, W. T. Ford, A. I. Rubiera, R. D. Kass, G. Eigen, B. H. Behrens, S. Kotov, R. Janicek, S. E. Csorna, K. Kinoshita, G. W. Brandenburg, C. Bebek, D. Riley, J. D. Richman, T. Wlodek, S. Ahmed, D. G. Cassel, M. L. Perl, I. Karliner, R. P. Stutz, Yuichi Kubota, B. I. Eisenstein, K. W. Edwards, T. Bergfeld, R. Godang, T. Lee, M. Schmidtler, J. Fast, D. M. Asner, C. Gwon, P. M. Patel, H. Schwarthoff, J. G. Thayer, R. Mountain, C.Y. Prescott, Jianqiao Ye, Richard Wilson, A. Gritsan, D. Cinabro, B. Gittelman, J. Holliday, P. S. Drell, K. Lingel, J. Ernst, E. von Toerne, and J. J. O'Neill
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Charge (physics), 01 natural sciences, Charmed baryons, Product (mathematics), 0103 physical sciences, Content (measure theory), 010306 general physics, Conjugate
Abstract: Based on an a high statistics e+e- -> ccbar data sample, we report on the inclusive rate for charmed baryons to decay into / particles using charm-event tagging. We select e+e- -> ccbar events which have a clear anti-charm tag and measure the / content in the hemisphere opposite the tag (charge conjugate modes are implicit). This allows us to determine the product branching fraction: B(/)=B(c->Theta_c)*B(Theta_c->/\X), where Theta_c represents a sum over all charmed baryons produced in e+e- fragmentation at sqrt(s)=10.5 GeV, given our specific tags. We obtain B(/)=(1.87+/-0.03+/-0.33)%
Published: 2000
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518. Search for decays ofB0mesons into pairs of leptons:B0→e+e−,B0→μ+μ−,andB0→e±μ∓

Author: D. Cinabro, A. Wolf, B. Gittelman, Shuai Chen, A. Anastassov, T. E. Coan, R. Baker, A. J. Weinstein, S.C. Timm, Richard Wilson, A. Gritsan, Tomasz Skwarnicki, C. Sedlack, E. H. Thorndike, G. Bonvicini, J. P. Alexander, S. J. Richichi, S. B. Athar, Jiejun Wu, M.A. Palmer, L. Ling, P. Skubic, S. E. Csorna, A. Ershov, T. O. Meyer, S. Schuh, Y. Li, K. Bukin, H. P. Paar, D. E. Jaffe, K. Kinoshita, J. L. Rodriguez, G. W. Brandenburg, G. Masek, J. Fast, H. Schwarthoff, Sacha E Kopp, M. S. Alam, Z. Xu, L. K. Gibbons, E. Dambasuren, Juliet Ritchie Patterson, V. V. Frolov, Sheldon Stone, Alice Bean, B. K. Heltsley, Jason Sang Hun Lee, A. Shapiro, Jing Wang, G. Majumder, E. Lipeles, Sz Márka, Paul Avery, S. J. Lee, V. Boisvert, X. Zhao, V. Savinov, E. von Toerne, R. Godang, M. Schmidtler, D. Z. Besson, Daniel P Cronin-Hennessy, E. Nordberg, A. Eppich, X. J. Zhou, Horst Severini, D. H. Miller, J. J. O'Neill, M. M. Zoeller, D. Peterson, Y. S. Gao, A. Undrus, J. Urheim, Jon J Thaler, S. Ahmed, I. Narsky, K. W. McLean, C.Y. Prescott, P. Gaidarev, R. Davis, F. Würthwein, N. Kwak, F. Blanc, G. J. Zhou, George D Gollin, G. E. Gladding, P. S. Drell, B. H. Behrens, Jianqiao Ye, D. M. Asner, C. Gwon, M. Lohner, Yurii Maravin, P. M. Patel, J. G. Thayer, R. Poling, K. Honscheid, T. S. Hill, R. Mountain, V. Pavlunin, C. D. Jones, R. Ehrlich, K. M. Ecklund, Karl Berkelman, A. L. Lyon, J. Ernst, M. Saleem, J. Roy, D. Riley, W. M. Sun, Ryszard Stroynowski, J. E. Duboscq, K. W. Edwards, R. Ayad, E. M. Potter, B. E. Berger, P. I. Hopman, D. L. Kreinick, H. Marsiske, S. P. Pappas, D. G. Cassel, L. Jian, C. Bebek, T. Bergfeld, G. Viehhauser, T. E. Browder, E. Eckhart, R. Janicek, Marina Artuso, V. Fadeyev, A. D. Foland, H. Yamamoto, T. Wlodek, A. H. Mahmood, N. B. Mistry, J. Williams, B. Valant-Spaight, M. L. Perl, Yuichi Kubota, I. Karliner, W. T. Ford, A. I. Rubiera, R. D. Kass, B. I. Eisenstein, J. Zheng, K. K. Gan, G. C. Moneti, Vivek Sharma, A. Smith, I. P.J. Shipsey, R. M. Hans, D. Y.J. Kim, Andreas Warburton, L. P. Perera, I. Danko, M. Dickson, T. K. Pedlar, D. Urner, E. I. Shibata, E. Johnson, C. Boulahouache, S. McGee, D. Hufnagel, D. L. Hartill, C. Plager, S. Anderson, A. Magerkurth, F. R. Wappler, J. B. Thayer, H. Kagan, R. J. Morrison, Mats A Selen, A. J. Sadoff, John Yelton, R. Mahapatra, R. Ammar, I. C. Lai, M. A. Marsh, C. J. Stepaniak, G. P. Chen, R. A. Briere, J. W. Hinson, T. Hart, T. Riehle, S. W. Gray, S. Karamov, S. Schrenk, J. G. Smith, C. P. Jessop, and S. Prell
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Leptoquark, Atomic physics, 010306 general physics, 01 natural sciences, Lower limit, Lepton
Abstract: We search for the decay of the ${B}^{0}$ meson into a pair of leptons in the suppressed channels ${B}^{0}\ensuremath{\rightarrow}{e}^{+}{e}^{\ensuremath{-}},$ ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ and in the lepton number violating channel ${B}^{0}\ensuremath{\rightarrow}{e}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\mu}}^{\ensuremath{\mp}}$ in a sample of $9.7\ifmmode\times\else\texttimes\fi{}{10}^{6} B\overline{B}$ pairs recorded by CLEO detector. No signal is found, and the following upper limits on the branching fractions are established: $\mathcal{B}{(B}^{0}\ensuremath{\rightarrow}{e}^{+}{e}^{\ensuremath{-}})l8.3\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}7},$ $\mathcal{B}{(B}^{0}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}})l6.1\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}7},$ $\mathcal{B}{(B}^{0}\ensuremath{\rightarrow}{e}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\mu}}^{\ensuremath{\mp}})l15\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}7}$ at 90% confidence level. A new lower limit on the Pati-Salam leptoquark mass ${M}_{\mathrm{LQ}}g27 \mathrm{TeV}$ is established at 90% confidence level.
Published: 2000
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519. Study of tau decays to six pions and a neutrino

Author: V. Savinov, K. Bukin, D. Z. Besson, K. K. Gan, S. Schuh, Alice Bean, Jason Sang Hun Lee, V. Boisvert, A. Eppich, I. Narsky, J. Fast, D. G. Cassel, H. Schwarthoff, R. Janicek, Karl Berkelman, L. Hsu, M. Saleem, K. Honscheid, D. E. Jaffe, G. P. Chen, K. W. Edwards, B. K. Heltsley, J. J. Thaler, E. Lipeles, S. J. Lee, J. E. Duboscq, Z. Xu, E. Dambasuren, Shuai Chen, A. Anastassov, I. P.J. Shipsey, Jing Wang, G. Majumder, H. Stoeck, R. A. Briere, R. Baker, T. Bergfeld, S. P. Pappas, C.Y. Prescott, C. Bebek, E. Eckhart, A. H. Mahmood, Jianqiao Ye, A. Undrus, T. Wlodek, W. T. Ford, A. I. Rubiera, D. M. Asner, I. Danko, R. D. Kass, D. Y.J. Kim, C. Gwon, M. Lohner, P. M. Patel, T. S. Hill, J. G. Thayer, T. K. Pedlar, J. W. Hinson, I. Karliner, D. Riley, S.C. Timm, C. Sedlack, Yurii Maravin, D. H. Miller, Jiejun Wu, R. Ehrlich, P. Skubic, L. Jian, M. Dubrovin, B. I. Eisenstein, J. G. Smith, Marina Artuso, C. P. Jessop, Sheldon Stone, Paul Avery, P. Gaidarev, S. Prell, Yuichi Kubota, T. Hart, G. Viehhauser, A. Smith, E. H. Thorndike, T. Riehle, N. B. Mistry, Richard Wilson, A. Gritsan, G. Bonvicini, J. P. Alexander, R. M. Hans, A. D. Foland, S. W. Gray, S. Karamov, Andreas Warburton, R. S. Galik, Sacha E Kopp, M. S. Alam, L. Ling, J. Williams, S. Ahmed, A. Ershov, Daniel P Cronin-Hennessy, J. R. Patterson, M. M. Zoeller, Y. S. Gao, John Yelton, R. Mahapatra, R. Ayad, A. Wolf, D. L. Hartill, E. M. Potter, C. Plager, S. Anderson, P. I. Hopman, R. Godang, D. Peterson, M. Schmidtler, A. Magerkurth, K. W. McLean, S. E. Csorna, T. E. Coan, A. J. Weinstein, Tomasz Skwarnicki, R. Ammar, D. Hufnagel, F. R. Wappler, J. B. Thayer, G. W. Brandenburg, R. Mountain, S. J. Richichi, E. von Toerne, H. Kagan, A. Romano, S. B. Athar, J. J. O'Neill, J. Urheim, M. A. Marsh, R. J. Morrison, G. C. Moneti, Mats A Selen, F. Würthwein, A. J. Sadoff, C. D. Jones, G. J. Zhou, B. E. Berger, P. S. Drell, D. Urner, E. I. Shibata, G. Masek, H. P. Paar, E. Johnson, J. Ernst, A. Shapiro, D. Cinabro, E. Nordberg, B. Gittelman, Horst Severini, L. K. Gibbons, V. V. Frolov, C. J. Stepaniak, C. Boulahouache, S. McGee, R. Poling, V. Pavlunin, J. Roy, V. Fadeyev, W. M. Sun, G. D. Gollin, Ryszard Stroynowski, F. Blanc, G. E. Gladding, K. M. Ecklund, B. Valant-Spaight, A. L. Lyon, D. L. Kreinick, M.A. Palmer, X. Zhao, and T. O. Meyer
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Omega, 3. Good health, High Energy Physics - Experiment, Nuclear physics, Pion, Isospin, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, Cornell Electron Storage Ring, 010306 general physics, Astrophysics::Galaxy Astrophysics
Abstract: The $\tau$ decays to six-pion final states have been studied with the CLEO detector at the Cornell Electron Storage Ring. The measured branching fractions are ${\cal B}(\tau^-\to 2\pi^-\pi^+3\pi^0\nu_{\tau})=(2.2 \pm 0.3 \pm 0.4)\times 10^{-4}$ and ${\cal B}(\tau^-\to 3\pi^-2\pi^+\pi^0\nu_{\tau})=(1.7 \pm 0.2 \pm 0.2)\times 10^{-4}$. A search for substructure in these decays shows that they are saturated by intermediate states with $\eta$ or $\omega$ mesons. We present the first observation of the decay $\tau^-\to 2\pi^-\pi^+\omega\nu_{\tau}$ and the branching fraction is measured to be $(1.2 \pm 0.2 \pm 0.1) \times 10^{-4}$. The measured branching fractions are in good agreement with the isospin expectations but somewhat below the Conserved-Vector-Current predictions., Comment: 11 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS
Published: 2000

520. Measurements of charm fragmentation intoDs*+andDs+ine+e−annihilations ats=10.5 GeV

Author: Richard L. Greene, E. H. Thorndike, L. Ling, G. Bonvicini, J. P. Alexander, S. B. Anderson, R. M. Hans, Z. Xu, Sz Márka, D. L. Hartill, B. K. Heltsley, R. J. Wilson, Vipul Jain, Ryszard Stroynowski, J. J. Thaler, S. J. Lee, Ilya Korolkov, L. K. Gibbons, G. D. Gollin, R. Davis, J. G. Thayer, D. Cinabro, Andreas Warburton, S. Schuh, Gobinda Majumder, Yang Li, D. J. Lange, B. Gittelman, R. Ammar, E. von Toerne, D. E. Jaffe, T. S. Hill, G. J. Zhou, T. O. Meyer, J. Urheim, N. Kwak, M. Bishai, H. Yamamoto, R. Ehrlich, V. V. Frolov, J. Zheng, Elliot Lipeles, T. Wlodek, F. R. Wappler, Yurii Maravin, T. Hart, I. C. Lai, S. Chan, F. Blanc, G. E. Gladding, K. K. Gan, T. Skwarnicki, A. L. Lyon, E. Dambasuren, G. Masek, Juliet Ritchie Patterson, Werner Sun, A. Anastassov, J. Gronberg, D. Z. Besson, H. P. Paar, T. Riehle, J. A. Ernst, M. A. Marsh, R. Ayad, Jing Wang, D. G. Cassel, S. Prell, G. C. Moneti, K. M. Ecklund, John Yelton, R. Mahapatra, Vivek Sharma, I. Narsky, D. Peterson, Karl Berkelman, June Hyuk Lee, Veronique Boisvert, K. W. McLean, Jayashree Roy, X. J. Zhou, A. J.R. Weinstein, Horst Severini, M.A. Palmer, E. Nordberg, R. A. Briere, R. Poling, T. E. Coan, S. W. Gray, G. H. A. Viehhauser, Sacha E Kopp, M. S. Alam, D. L. Kreinick, H. Kagan, Sheldon Stone, D. H. Miller, Paul Avery, C. Bebek, S. J. Richichi, L. P. Perera, Y. S. Gao, B. H. Behrens, B. I. Eisenstein, P. G. Thies, A. Wolf, C. Plager, T. Bergfeld, R. Godang, T. Lee, M. Schmidtler, T. E. Browder, Alexander Ershov, C. Sedlack, S.C. Timm, W. T. Ford, S. Schrenk, R. J. Morrison, Mats A Selen, A. I. Rubiera, R. D. Kass, P. Gaidarev, J. Lorenc, J. L. Rodriguez, Yanwen Liu, J. G. Smith, H. Marsiske, E. I. Shibata, Frank Würthwein, D. Y.J. Kim, V. Savinov, C. P. Jessop, R. Baker, A. D. Foland, A. J. Sadoff, C.Y. Prescott, Jiejun Wu, S. B. Athar, James E. Fast, N. B. Mistry, P. Skubic, A. Titov, Jianqiao Ye, Y. J. Kwon, B. Valant-Spaight, Vitaliy Fadeyev, T. K. Nelson, Alexander Undrus, Philip Baringer, G. Eigen, A. M. Smith, L. Jian, H. Krieg, I. P. J. Shipsey, C. R. Ng, Erik A. Johnson, M. M. Zoeller, Ilya Kravchenko, C. D. Jones, J. W. Hinson, H. Schwarthoff, R. Janicek, A. H. Mahmood, E. M. Potter, Marina Artuso, P. I. Hopman, Andrei Gritsan, S. E. Csorna, M. Saleem, I. Karliner, K. Kinoshita, Alice Bean, G. W. Brandenburg, A. Eppich, A. Shapiro, K. Honscheid, N. Menon, J. E. Duboscq, K. W. Edwards, S. Kotov, S. Ahmed, B. E. Berger, D. Ugolini, Xiandong Zhao, D. Riley, M. L. Perl, Yuichi Kubota, D. M. Asner, C. Gwon, P. M. Patel, S. J. Chen, R. Mountain, M. Dickson, M. Lohner, J. J. O'Neill, P. S. Drell, and J. C. Williams
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 0103 physical sciences, Fragmentation (computing), Charm (quantum number), 010306 general physics, 01 natural sciences
Published: 2000
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521. Measurements of B --> D_s^{()+} D^{(*)} Branching Fractions

Author: Shuai Chen, A. Anastassov, R. Baker, Sacha E Kopp, M. S. Alam, C.Y. Prescott, F. Blanc, G. E. Gladding, L. Jian, K. M. Ecklund, Marina Artuso, Richard Wilson, A. Gritsan, C. Sedlack, R. Janicek, D. Cinabro, S.C. Timm, L. K. Gibbons, V. V. Frolov, A. L. Lyon, Jianqiao Ye, A. Wolf, Daniel P Cronin-Hennessy, K. Bukin, B. Gittelman, Jiejun Wu, P. Skubic, T. O. Meyer, Persis S. Drell, J. J. Thaler, R. Ayad, E. M. Potter, A. D. Foland, John Yelton, R. Mahapatra, F. Würthwein, G. J. Zhou, P. I. Hopman, E. H. Thorndike, B. K. Heltsley, E. Lipeles, S. J. Lee, E. Dambasuren, Jing Wang, C. Plager, S. Anderson, H. Marsiske, V. Savinov, D. E. Jaffe, G. Majumder, R. Godang, G. D. Gollin, D. Z. Besson, G. P. Chen, G. Bonvicini, J. P. Alexander, J. Williams, A. Magerkurth, S. Schuh, I. Narsky, S. B. Athar, M. Schmidtler, D. H. Miller, D. L. Kreinick, B. H. Behrens, T. Bergfeld, J. Urheim, K. K. Gan, I. P.J. Shipsey, D. M. Asner, Y. Li, C. Gwon, M. Lohner, P. M. Patel, J. G. Thayer, Alice Bean, Jason Sang Hun Lee, V. Boisvert, F. R. Wappler, J. B. Thayer, H. Kagan, Z. Xu, Sz Márka, J. Roy, W. M. Sun, Ryszard Stroynowski, H. P. Paar, A. Eppich, A. Shapiro, K. Honscheid, R. A. Briere, T. E. Browder, E. Nordberg, L. P. Perera, V. Fadeyev, B. Valant-Spaight, D. Hufnagel, S. P. Pappas, Xingjiang Zhou, Y. S. Gao, M.A. Palmer, C. Bebek, J. L. Rodriguez, R. J. Morrison, Mats A Selen, R. Mountain, D. L. Hartill, R. Poling, T. E. Coan, I. Danko, E. Eckhart, M. Dickson, D. Riley, V. Pavlunin, A. J. Weinstein, A. J. Sadoff, T. K. Pedlar, J. E. Duboscq, K. W. Edwards, G. C. Moneti, J. Ernst, Tomasz Skwarnicki, J. Fast, A. Undrus, H. Yamamoto, H. Schwarthoff, T. Wlodek, H. N. Nelson, T. S. Hill, Michael S. Witherell, D. G. Cassel, G. Viehhauser, R. Davis, R. Ehrlich, S. J. Richichi, D. Urner, E. I. Shibata, D. Y.J. Kim, N. B. Mistry, X. Zhao, M. L. Perl, A. H. Mahmood, J. Zheng, N. Kwak, E. Johnson, Yuichi Kubota, I. Karliner, E. von Toerne, G. Masek, M. M. Zoeller, B. I. Eisenstein, Juliet Ritchie Patterson, C. Boulahouache, S. McGee, C. J. Stepaniak, Vivek Sharma, Karl Berkelman, A. Smith, M. Saleem, Horst Severini, R. M. Hans, D. Peterson, Andreas Warburton, K. W. McLean, J. W. Hinson, L. Ling, A. Ershov, W. T. Ford, A. I. Rubiera, R. D. Kass, R. Ammar, S. Schrenk, J. G. Smith, C. P. Jessop, I. C. Lai, S. Prell, T. Hart, T. Riehle, Sheldon Stone, S. W. Gray, S. Karamov, Paul Avery, Yurii Maravin, M. A. Marsh, C. D. Jones, B. E. Berger, S. Ahmed, P. Gaidarev, S. E. Csorna, K. Kinoshita, G. W. Brandenburg, J. D. Richman, and J. J. O'Neill
Subjects: Systematic error, Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Analytical chemistry, Branching (polymer chemistry), 01 natural sciences, High Energy Physics - Experiment, KEKB, 0103 physical sciences, Pi, 010306 general physics
Abstract: This article describes improved measurements by CLEO of the $B^0 \to D_s^+ D^{*-}$ and $B^0 \to D_s^{*+} D^{*-}$ branching fractions, and first evidence for the decay $B^+ \to D_s^{(*)+} \bar{D}^{**0}$, where $\bar{D}^{**0}$ represents the sum of the $\bar{D}_1(2420)^0$, $\bar{D}_2^*(2460)^0$, and $\bar{D}_1(j=1/2)^0$ L=1 charm meson states. Also reported is the first measurement of the $D_s^{*+}$ polarization in the decay $B^0 \to D_s^{*+} D^{*-}$. A partial reconstruction technique, employing only the fully reconstructed $D_s^+$ and slow pion $\pi_s^-$ from the $D^{*-} \to \bar{D}^0 \pi^-_s$ decay, enhances sensitivity. The observed branching fractions are ${\mathcal B} (B^0 \to D_s^+ D^{*-}) = (1.10 \pm 0.18 \pm 0.10 \pm 0.28)%$, ${\mathcal B} (B^0 \to D_s^{*+} D^{*-}) = (1.82 \pm 0.37 \pm 0.24 \pm 0.46)%$, and ${\mathcal B} (B^+ \to D_s^{(*)+} \bar{D}^{**0}) = (2.73 \pm 0.78 \pm 0.48 \pm 0.68)%$, where the first error is statistical, the second systematic, and the third is due to the uncertainty in the $D_s^+ \to \phi \pi^+$ branching fraction. The measured $D_s^{*+}$ longitudinal polarization, $\Gamma_L/\Gamma = (50.6 \pm 13.9 \pm 3.6)%$, is consistent with the factorization prediction of 54%., Comment: 26 pages (LaTeX), 15 figures. To be submitted to PRD
Published: 2000

522. Study of exclusive two-bodyB0meson decays to charmonium

Author: L. K. Gibbons, V. V. Frolov, B. H. Behrens, Z. Xu, Sz Márka, F. Blanc, L. P. Perera, G. E. Gladding, K. M. Ecklund, A. L. Lyon, A. Undrus, N. Kwak, M.A. Palmer, T. Hart, H. Marsiske, V. Fadeyev, B. Valant-Spaight, R. Ammar, I. C. Lai, W. T. Ford, A. I. Rubiera, R. D. Kass, E. H. Thorndike, J. Zheng, T. Bergfeld, S.C. Timm, T. Riehle, T. O. Meyer, C. D. Jones, X. Zhao, B. K. Heltsley, G. Bonvicini, J. P. Alexander, S. P. Pappas, C. Bebek, G. C. Moneti, J. J. Thaler, T. S. Hill, R. Ehrlich, Vivek Sharma, E. Lipeles, S. J. Lee, A. Smith, G. D. Gollin, E. Eckhart, M. A. Marsh, C. Sedlack, B. E. Berger, J. Roy, J. Urheim, J. L. Rodriguez, D. L. Kreinick, R. Davis, C.Y. Prescott, T. E. Browder, Jiejun Wu, W. M. Sun, V. Savinov, Ryszard Stroynowski, D. Z. Besson, D. Ugolini, G. Viehhauser, Yurii Maravin, N. B. Mistry, Ron Poling, C. Plager, S. Anderson, T. Wlodek, P. Skubic, D. E. Jaffe, Y. S. Gao, Karl Berkelman, M. Saleem, P. G. Thies, E. I. Shibata, S. E. Csorna, L. Ling, R. M. Hans, S. W. Gray, S. Karamov, K. K. Gan, Jianqiao Ye, G. Masek, A. D. Foland, P. S. Drell, K. Honscheid, A. Ershov, D. M. Asner, Hans J. Vogel, Thomas Ferguson, Y. Li, A. Magerkurth, J. Williams, C. Gwon, P. M. Patel, J. G. Thayer, Juliet Ritchie Patterson, Xingjiang Zhou, I. Danko, J. E. Duboscq, K. W. Edwards, J. Ernst, K. Kinoshita, G. W. Brandenburg, Andreas Warburton, F. R. Wappler, D. Riley, M. Dickson, T. K. Pedlar, E. Johnson, Horst Severini, D. Cinabro, D. Peterson, J. Fast, R. Janicek, J. B. Thayer, Shuai Chen, A. Anastassov, H. Kagan, D. G. Cassel, S. Ahmed, H. Yamamoto, H. Schwarthoff, K. W. McLean, Sheldon Stone, R. Baker, B. Gittelman, S. Schrenk, I. P.J. Shipsey, J. G. Smith, C. P. Jessop, Paul Avery, M. Lohner, A. H. Mahmood, S. Schuh, M. L. Perl, L. Jian, S. Prell, D. L. Hartill, R. J. Morrison, V. Pavlunin, Mats A Selen, I. Karliner, Yuichi Kubota, R. Ayad, E. M. Potter, A. J. Sadoff, C. Boulahouache, M. M. Zoeller, Marina Artuso, R. A. Briere, Alice Bean, B. I. Eisenstein, Richard Wilson, A. Gritsan, Jason Sang Hun Lee, A. Wolf, P. I. Hopman, V. Boisvert, A. Eppich, K. Bukin, R. Godang, M. Schmidtler, S. McGee, D. Y.J. Kim, John Yelton, R. Mahapatra, E. Dambasuren, Jing Wang, C. J. Stepaniak, J. W. Hinson, S. B. Athar, R. Mountain, E. von Toerne, J. J. O'Neill, G. Majumder, I. Narsky, D. Hufnagel, D. H. Miller, Sacha E Kopp, P. Gaidarev, M. S. Alam, Daniel P Cronin-Hennessy, H. P. Paar, A. Shapiro, E. Nordberg, T. E. Coan, A. J. Weinstein, Tomasz Skwarnicki, S. J. Richichi, F. Würthwein, and G. J. Zhou
Subjects: Physics, Nuclear and High Energy Physics, Meson, 010308 nuclear & particles physics, 0103 physical sciences, Atomic physics, 010306 general physics, 01 natural sciences, 3. Good health
Abstract: We present a study of three B{sup 0} decay modes useful for time-dependent CP asymmetry measurements. From a sample of 9.7x10{sup 6} BB(bar sign) meson pairs collected with the CLEO detector, we have reconstructed B{sup 0}{yields}J/{psi}K{sub S}{sup 0}, B{sup 0}{yields}{chi}{sub c1}K{sub S}{sup 0}, and B{sup 0}{yields}J/{psi}{pi}{sup 0} decays. The latter two decay modes have been observed for the first time. We describe a K{sub S}{sup 0}{yields}{pi}{sup 0}{pi}{sup 0} detection technique and its application to the reconstruction of the decay B{sup 0}{yields}J/{psi}K{sub S}{sup 0}. Combining the results obtained using K{sub S}{sup 0}{yields}{pi}{sup +}{pi}{sup -} and K{sub S}{sup 0}{yields}{pi}{sup 0}{pi}{sup 0} decays, we determine B(B{sup 0}{yields}J/{psi}K{sup 0})=(9.5{+-}0.8{+-}0.6)x10{sup -4}, where the first uncertainty is statistical and the second one is systematic. We also obtain B(B{sup 0}{yields}{chi}{sub c1}K{sup 0})=(3.9{sub -1.3}{sup +1.9}{+-}0.4)x10{sup -4} and B(B{sup 0}{yields}J/{psi}{pi}{sup 0})=(2.5{sub -0.9}{sup +1.1}{+-}0.2)x10{sup -5}. (c) 2000 The American Physical Society.
Published: 2000
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523. Two-body B meson decays to eta and eta('): observation of B --> eta K*

Author: S J, Richichi, H, Severini, P, Skubic, A, Undrus, S, Chen, J, Fast, J W, Hinson, J, Lee, N, Menon, D H, Miller, E I, Shibata, I P, Shipsey, V, Pavlunin, D, Cronin-Hennessey, Y, Kwon, A L, Lyon, E H, Thorndike, C P, Jessop, H, Marsiske, M L, Perl, V, Savinov, D, Ugolini, X, Zhou, T E, Coan, V, Fadeyev, Y, Maravin, I, Narsky, R, Stroynowski, J, Ye, T, Wlodek, M, Artuso, R, Ayad, C, Boulahouache, K, Bukin, E, Dambasuren, S, Karamnov, S, Kopp, G, Majumder, G C, Moneti, R, Mountain, S, Schuh, T, Skwarnicki, S, Stone, G, Viehauser, J C, Wang, A, Wolf, J, Wu, S E, Csorna, I, Danko, and G J, Zhou
Abstract: In a sample of 19 x 10(6) produced B mesons, we have observed the decays B-->eta K(*) and improved our previous measurements of B-->eta'K. The branching fractions we measure for these decay modes are B(B+-->eta K(*+)) = (26.4(+9.6)(-8.2)+/-3.3)x10(-6), B(B(0)-->eta K(*0)) = (13.8(+5.5)(-4.6)+/-1.6)x10(-6), B(B(+)-->eta'K(+) = (80(+10)(-9)+/-7)x10(-6), and B(B(0)-->eta'K0) = (89(+18)(-16)+/-9)x10(-6). We have searched with comparable sensitivity for related decays and report upper limits for these branching fractions.
Published: 2000

524. Measurement of theB0andB+meson masses fromB0→ψ(′)KS0andB+→ψ(′)K+decays

Author: K. W. Edwards, R. Ayad, E. M. Potter, P. I. Hopman, S. E. Csorna, G. W. Brandenburg, E. Dambasuren, Jing Wang, G. Majumder, D. H. Miller, P. Gaidarev, R. A. Briere, X. Zhou, J. W. Hinson, D. Z. Besson, V. V. Frolov, F. Würthwein, B. H. Behrens, S.C. Timm, M. Selen, J. Zheng, K. Honscheid, Dj Lange, S. J. Lee, C. Bebek, R. Mahapatra, I. Danko, Anders Ryd, Z. Xu, G. C. Moneti, Sz Márka, D. G. Cassel, M. Dickson, T. Wlodek, Vivek Sharma, A. Undrus, L. K. Gibbons, D. Ugolini, H. Schwarthoff, N. Kwak, T. K. Pedlar, E. H. Thorndike, R. M. Hans, Karl Berkelman, I. Karliner, H. Yamamoto, M. Saleem, G. Bonvicini, J. P. Alexander, B. I. Eisenstein, R. Godang, Andreas Warburton, M. Schmidtler, J. E. Duboscq, S. Schrenk, J. G. Smith, Y. Kubota, L. P. Perera, S. Prell, R. Mountain, J. Roy, G. J. Zhou, W. M. Sun, Ryszard Stroynowski, F. Blanc, G. E. Gladding, E. von Toerne, K. M. Ecklund, S. W. Gray, S. Karamov, A. L. Lyon, H. P. Paar, K. K. Gan, A. D. Foland, L. Jian, A. Shapiro, Marina Artuso, E. Nordberg, Y. Kwon, J. J. O’Neill, M.A. Palmer, J. Williams, Sacha E Kopp, M. S. Alam, D. Hufnagel, B. K. Heltsley, T. E. Coan, E. Lipeles, R. Kass, A. J. Weinstein, C. Sedlack, Tomasz Skwarnicki, Daniel P Cronin-Hennessy, V. Pavlunin, P. M. Patel, S. J. Richichi, S. Ahmed, R. J. Morrison, B. Gittelman, T. S. Hill, N. Menon, R. Ehrlich, A. J. Sadoff, T. E. Browder, D. L. Hartill, R. Ammar, R. Janicek, C. Plager, D. L. Kreinick, A. Magerkurth, T. Hart, C. Gwon, I. C. Lai, P. S. Drell, C. Boulahouache, F. R. Wappler, J. Ernst, G. Masek, M. A. Marsh, X. Zhao, Juliet Ritchie Patterson, Y. Li, John Yelton, T. Riehle, Horst Severini, P. G. Thies, Jiejun Wu, Y. S. Gao, A. Smith, H. Kagan, A. H. Mahmood, E. I. Shibata, K. Kinoshita, R. Poling, E. Johnson, P. Skubic, C. D. Jones, V. Fadeyev, A. Wolf, B. E. Berger, D. E. Jaffe, B. Valant-Spaight, S. B. Athar, I. P.J. Shipsey, D. Riley, D. Y.J. Kim, H. Marsiske, V. Savinov, D. M. Asner, J. B. Thayer, M. Lohner, G. Viehhauser, D. Cinabro, J. G. Thayer, A. Anastassov, Sheldon Stone, Richard Wilson, A. Gritsan, Paul Avery, J. L. Rodriguez, N. B. Mistry, Yurii Maravin, W. T. Ford, A. I. Rubiera, G. D. Gollin, D. Peterson, K. W. McLean, L. Ling, A. Ershov, C.Y. Prescott, J. J. Thaler, K. Bukin, S. Anderson, Jianqiao Ye, T. O. Meyer, M. L. Perl, G. Eigen, I. Narsky, R. Davis, J. Urheim, Shuai Chen, R. Baker, M. M. Zoeller, S. Schuh, T. Bergfeld, J. Fast, Alice Bean, Jason Sang Hun Lee, V. Boisvert, A. Eppich, R. Kutschke, and C. P. Jessop
Subjects: Physics, Nuclear and High Energy Physics, Theoretical physics, Crystallography, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, B meson, Invariant mass, 010306 general physics, 01 natural sciences
Abstract: Using a sample of 9.6x10{sup 6}BB(bar sign) meson pairs collected with the CLEO detector, we have fully reconstructed 135 B{sup 0}{yields}{psi}{sup (')} K{sub S}{sup 0} and 526 B{sup +}{yields}{psi}{sup (')}K{sup +} candidates with very low background. We fitted the {psi}{sup (')}K invariant mass distributions of these B meson candidates and measured the masses of the neutral and charged B mesons to be M(B{sup 0})=5279.1{+-}0.7[stat]{+-}0.3[ syst] MeV/c{sup 2} and M(B{sup +})=5279.1{+-}0.4[stat]{+-}0.4[ syst] MeV/c{sup 2}. The precision is a significant improvement over previous measurements. (c) 2000 The American Physical Society.
Published: 2000
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525. Update of the search for the neutrinoless decayτ→μγ

Author: H. P. Paar, Z. Xu, J. R. Patterson, S. Schrenk, Sacha E Kopp, M. S. Alam, Sz Márka, C. P. Jessop, S. Prell, Daniel P Cronin-Hennessy, F. Blanc, G. E. Gladding, A. Shapiro, C. Plager, A. H. Mahmood, A. Undrus, S. Anderson, E. Nordberg, N. Kwak, E. Dambasuren, N. Menon, R. Davis, J. Zheng, J. Gronberg, Jing Wang, G. Majumder, C. Bebek, S.C. Timm, K. M. Ecklund, T. O. Meyer, D. E. Jaffe, Xingjiang Zhou, R. A. Briere, R. Godang, A. Wolf, S. Ahmed, A. L. Lyon, K. Honscheid, D. H. Miller, Yurii Maravin, Dj Lange, E. von Toerne, J. J. Thaler, M. Dickson, T. K. Pedlar, J. J. O'Neill, A. J. Weinstein, S. Schuh, M.A. Palmer, Vivek Sharma, P. Gaidarev, Ilya Kravchenko, M. Schmidtler, T. Wlodek, C. D. Jones, A. Smith, J. W. Hinson, J. E. Duboscq, Shuai Chen, A. Anastassov, T. Hart, A. D. Foland, B. E. Berger, Tomasz Skwarnicki, F. R. Wappler, H. N. Nelson, S. J. Richichi, Y. Kwon, V. Savinov, S. B. Athar, D. L. Kreinick, I. Korolkov, D. Z. Besson, R. Baker, J. Urheim, E. H. Thorndike, Alice Bean, Jason Sang Hun Lee, L. P. Perera, T. Riehle, G. Masek, J. Williams, R. Mountain, T. E. Browder, V. Boisvert, G. Bonvicini, J. P. Alexander, Philip Baringer, A. Eppich, J. Fast, K. K. Gan, F. Würthwein, R. Ayad, G. J. Zhou, R. Ammar, H. Schwarthoff, D. Ugolini, E. M. Potter, S. W. Gray, P. I. Hopman, B. H. Behrens, I. C. Lai, X. Zhao, G. C. Moneti, W. T. Ford, D. G. Cassel, P. G. Thies, Y. S. Gao, A. I. Rubiera, R. D. Kass, John Yelton, R. Mahapatra, R. S. Galik, M. M. Zoeller, R. Janicek, M. A. Marsh, E. I. Shibata, L. K. Gibbons, James G. Smith, V. V. Frolov, P. S. Drell, M. Lohner, T. S. Hill, D. M. Asner, Horst Severini, C. Gwon, R. Ehrlich, S. E. Csorna, H. Kagan, R. M. Hans, T. E. Coan, K. W. Edwards, E. Johnson, Y. Li, P. M. Patel, J. Ernst, I. Narsky, J. G. Thayer, I. Karliner, J. L. Rodriguez, K. Kinoshita, B. K. Heltsley, T. Bergfeld, G. W. Brandenburg, D. Cinabro, E. Lipeles, S. J. Lee, Sheldon Stone, B. I. Eisenstein, B. Gittelman, G. D. Gollin, Andreas Warburton, C.Y. Prescott, Paul Avery, D. L. Hartill, R. J. Morrison, Mats A Selen, C. Sedlack, G. Eigen, R. Poling, Jianqiao Ye, J. Lorenc, A. J. Sadoff, V. Pavlunin, C. R. Ng, H. Marsiske, Richard Wilson, A. Gritsan, V. Fadeyev, H. Yamamoto, Jiejun Wu, B. Valant-Spaight, J. Roy, P. Skubic, W. M. Sun, Ryszard Stroynowski, D. Riley, M. L. Perl, Yuichi Kubota, L. Jian, Marina Artuso, Karl Berkelman, M. Saleem, I. P.J. Shipsey, D. Y.J. Kim, G. Viehhauser, N. B. Mistry, D. Peterson, K. W. McLean, L. Ling, and A. Ershov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Elementary particle, Fermion, 01 natural sciences, Lepton number, Nuclear physics, Particle decay, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Lepton
Abstract: We present an update of the search for the lepton family number violating decay {tau}{yields}{mu}{gamma} using 12.6 million {tau}{sup +}{tau}{sup -} pairs collected with the CLEO detector. No evidence of a signal has been found and the corresponding upper limit is B({tau}{yields}{mu}{gamma})
Published: 2000
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526. Resonant structure ofτ→3ππ0ντandτ→ωπντdecays

Author: D. M. Asner, Y. Li, C. Gwon, P. M. Patel, J. G. Thayer, D. Riley, Richard Wilson, A. Gritsan, Richard L. Greene, T. O. Meyer, M. L. Perl, E. H. Thorndike, H. Kagan, Yuichi Kubota, I. P.J. Shipsey, J. Zheng, K. K. Gan, A. Wolf, G. C. Moneti, C.Y. Prescott, Y. Kwon, V. Savinov, D. Z. Besson, S. Ahmed, Shuai Chen, A. Anastassov, I. Korolkov, R. Baker, Vivek Sharma, R. J. Morrison, Mats A Selen, A. Smith, X. Zhao, Jianqiao Ye, S. E. Csorna, G. Eigen, G. Bonvicini, J. P. Alexander, A. J. Sadoff, S. Schrenk, Yanwen Liu, P. G. Thies, D. Y.J. Kim, J. G. Smith, C. P. Jessop, W. T. Ford, S. Schuh, J. Roy, R. M. Hans, A. I. Rubiera, R. D. Kass, K. W. Edwards, D. Peterson, N. Kwak, H. Krieg, R. Poling, S. Prell, C. Bebek, W. M. Sun, Ryszard Stroynowski, M. Bishai, E. I. Shibata, K. W. McLean, T. Hart, C. R. Ng, Alice Bean, Jason Sang Hun Lee, C. D. Jones, S. B. Athar, V. Boisvert, A. Eppich, J. Williams, M.A. Palmer, K. Kinoshita, A. Titov, T. Riehle, T. Bergfeld, John Yelton, R. Mahapatra, R. Davis, Andreas Warburton, G. W. Brandenburg, E. Johnson, R. S. Galik, B. E. Berger, T. Wlodek, D. Ugolini, D. L. Hartill, Sheldon Stone, C. Plager, C. Sedlack, L. P. Perera, S. Anderson, T. K. Nelson, S. Kotov, S. W. Gray, V. Shelkov, Paul Avery, Philip Baringer, I. Narsky, R. Janicek, J. Fast, R. A. Briere, J. Lorenc, J. L. Rodriguez, H. Marsiske, H. Yamamoto, H. Schwarthoff, L. K. Gibbons, V. V. Frolov, P. Pomianowski, Frank Würthwein, M. M. Zoeller, Sacha E Kopp, Yurii Maravin, R. Ayad, M. S. Alam, G. Viehhauser, J. Urheim, Ilya Kravchenko, E. M. Potter, V. Fadeyev, F. R. Wappler, K. Honscheid, N. B. Mistry, M. Dickson, J. W. Hinson, P. I. Hopman, J. D. Richman, A. H. Mahmood, B. Valant-Spaight, J. E. Duboscq, Jiejun Wu, E. Dambasuren, Jing Wang, G. Majumder, N. Menon, L. Ling, Karl Berkelman, M. Saleem, T. S. Hill, A. Ershov, R. Ehrlich, P. Skubic, Z. Xu, D. H. Miller, Sz Márka, P. Gaidarev, A. Undrus, D. E. Jaffe, J. Gronberg, S.C. Timm, Y. S. Gao, Dj Lange, E. von Toerne, J. J. O'Neill, D. Cinabro, E. H. Behrens, B. Gittelman, P. S. Drell, K. Lingel, J. Ernst, L. Jian, Marina Artuso, F. Blanc, G. E. Gladding, K. M. Ecklund, A. L. Lyon, D. L. Kreinick, T. E. Browder, J. J. Thaler, B. K. Heltsley, E. Lipeles, S. J. Lee, G. D. Gollin, M. Lohner, R. Godang, T. Lee, M. Schmidtler, R. Mountain, G. J. Zhou, D. G. Cassel, H. P. Paar, A. Shapiro, E. Nordberg, T. E. Coan, A. J. Weinstein, I. Karliner, Tomasz Skwarnicki, S. J. Richichi, B. I. Eisenstein, R. Ammar, I. C. Lai, S. Chan, M. A. Marsh, G. Masek, Juliet Ritchie Patterson, X. J. Zhou, A. D. Poland, and Horst Severini
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Electron–positron annihilation, Partial wave analysis, Resonance, State (functional analysis), 01 natural sciences, Omega, Pion, 0103 physical sciences, Spectral function, Cornell Electron Storage Ring, Atomic physics, 010306 general physics
Abstract: The resonant structure of the four pion final state in the decay {tau}{yields}3{pi}{pi}{sup 0}{nu}{sub {tau}} has been analyzed using 4.27 million {tau}{sup +}{tau}{sup -} pairs collected by the CLEO II experiment at the Cornell Electron Storage Ring. A partial wave analysis of the resonant structure of the {tau}{yields}3{pi}{pi}{sup 0}{nu}{sub {tau}} decay has been performed; the spectral decomposition of the four pion system is dominated by the {omega}{pi} and a{sub 1}{pi} final states. The mass and width of the {rho}{sup '} resonance have been extracted from a fit to the {tau}{yields}{omega}{pi}{nu}{sub {tau}} spectral function. We have searched for second class currents in the decay {tau}{yields}{omega}{pi}{nu}{sub {tau}} using spin-parity analysis and established an upper limit on the non-vector current contribution. (c) 2000 The American Physical Society.
Published: 2000
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527. Structure functions in the decayτ∓→π∓π0π0ντ

Author: T. E. Browder, Y. Li, J. L. Rodriguez, H. Yamamoto, T. Bergfeld, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, M. Palmer, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, R. Janicek, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, R. Davis, S. Kotov, I. Kravchenko, N. Kwak, X. Zhao, S. Anderson, V. V. Frolov, Y. Kubota, S. J. Lee, R. Mahapatra, J. J. O’Neill, R. Poling, T. Riehle, A. Smith, S. Ahmed, M. S. Alam, S. B. Athar, L. Jian, L. Ling, A. H. Mahmood, M. Saleem, S. Timm, F. Wappler, A. Anastassov, J. E. Duboscq, K. K. Gan, C. Gwon, T. Hart, K. Honscheid, H. Kagan, R. Kass, J. Lorenc, H. Schwarthoff, E. von Toerne, M. M. Zoeller, S. J. Richichi, H. Severini, P. Skubic, A. Undrus, M. Bishai, S. Chen, J. Fast, J. W. Hinson, J. Lee, N. Menon, D. H. Miller, E. I. Shibata, I. P. J. Shipsey, Y. Kwon, A. L. Lyon, E. H. Thorndike, C. P. Jessop, K. Lingel, H. Marsiske, M. L. Perl, V. Savinov, D. Ugolini, X. Zhou, T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, R. Stroynowski, J. Ye, T. Wlodek, M. Artuso, R. Ayad, E. Dambasuren, S. Kopp, G. Majumder, G. C. Moneti, R. Mountain, S. Schuh, T. Skwarnicki, S. Stone, A. Titov, G. Viehhauser, J. C. Wang, A. Wolf, J. Wu, S. E. Csorna, K. W. McLean, S. Marka, Z. Xu, R. Godang, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, G. J. Zhou, S. Chan, G. Eigen, E. Lipeles, M. Schmidtler, A. Shapiro, W. M. Sun, J. Urheim, A. J. Weinstein, F. Würthwein, D. E. Jaffe, G. Masek, H. P. Paar, E. M. Potter, S. Prell, V. Sharma, D. M. Asner, A. Eppich, J. Gronberg, T. S. Hill, D. J. Lange, R. J. Morrison, T. K. Nelson, J. D. Richman, R. A. Briere, B. H. Behrens, W. T. Ford, A. Gritsan, H. Krieg, J. Roy, J. G. Smith, J. P. Alexander, R. Baker, C. Bebek, B. E. Berger, K. Berkelman, F. Blanc, V. Boisvert, D. G. Cassel, M. Dickson, P. S. Drell, K. M. Ecklund, R. Ehrlich, A. D. Foland, P. Gaidarev, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, C. D. Jones, D. L. Kreinick, T. Lee, Y. Liu, T. O. Meyer, N. B. Mistry, C. R. Ng, E. Nordberg, J. R. Patterson, D. Peterson, D. Riley, J. G. Thayer, P. G. Thies, B. Valant-Spaight, A. Warburton, P. Avery, M. Lohner, C. Prescott, A. I. Rubiera, J. Yelton, J. Zheng, G. Brandenburg, A. Ershov, Y. S. Gao, D. Y.-J. Kim, and R. Wilson
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Scalar (mathematics), Dalitz plot, 01 natural sciences, Particle decay, Pion, 0103 physical sciences, High Energy Physics::Experiment, Cornell Electron Storage Ring, 010306 general physics, Pseudovector
Abstract: Using the CLEO II detector operating at the Cornell Electron Storage Ring (CESR) e{sup +}e{sup -} collider, we have measured the structure functions in the decay {tau}{sup {+-}}{yields}{pi}{sup {+-}}{pi}{sup 0}{pi}{sup 0}{nu}{sub {tau}}, based on a sample corresponding to 4x10{sup 6} produced {tau}-pair events. We determine the integrated structure functions, which depend only on the three pion invariant mass, as well as the structure functions differential in the Dalitz plot variables. We extract model independent limits on non-axial-vector contributions from the measured structure functions as less than 16.6% of the total branching fraction, at the 95% confidence level. Separating the non-axial-vector contributions into scalar and vector contributions, we measure that scalars (vectors) contribute with less than 9.4% (7.3%) to the total branching fraction, at the 95% confidence level. (c) 2000 The American Physical Society.
Published: 2000
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528. Limit on the tau neutrino mass fromτ−→π−π+π−π0ντ

Author: R. Godang, T. Lee, M. Schmidtler, D. Cinabro, I. P.J. Shipsey, G. C. Moneti, D. L. Kreinick, B. Gittelman, S. B. Athar, C. Bebek, Shuai Chen, A. Anastassov, P. G. Thies, A. D. Foland, T. E. Browder, R. Mountain, J. Urheim, I. Korolkov, Jon J Thaler, E. I. Shibata, H. Kagan, S. Kotov, R. Baker, G. E. Gladding, B. K. Heltsley, M.A. Palmer, E. Lipeles, E. Johnson, R. Janicek, T. Wlodek, K. M. Ecklund, C.Y. Prescott, A. L. Lyon, T. E. Coan, J. Williams, A. J. Weinstein, D. Y.J. Kim, G. Masek, D. G. Cassel, R. J. Morrison, Mats A Selen, Philip Baringer, A. J. Sadoff, Seung J. Lee, Tomasz Skwarnicki, Jianqiao Ye, T. O. Meyer, Juliet Ritchie Patterson, L. P. Perera, H. N. Nelson, E. von Toerne, J. J. O'Neill, L. K. Gibbons, V. V. Frolov, Xingjiang Zhou, M. Lohner, G. Eigen, S. J. Richichi, I. Karliner, T. K. Nelson, N. Menon, K. W. Edwards, A. Titov, M. Dickson, B. H. Behrens, H. Marsiske, B. I. Eisenstein, T. S. Hill, R. Ehrlich, P. S. Drell, Horst Severini, John Yelton, R. Mahapatra, S. Schuh, R. A. Briere, K. Honscheid, M. M. Zoeller, Y. Kwon, V. Savinov, R. M. Hans, K. Lingel, C. Plager, S. Anderson, D. S. Crowcroft, A. H. Mahmood, T. Bergfeld, V. Fadeyev, D. Z. Besson, J. Ernst, G. J. Zhou, Alice Bean, Jason Sang Hun Lee, S. Glenn, M. Ogg, V. Boisvert, A. Eppich, Andreas Warburton, J. E. Duboscq, J. Zheng, F. R. Wappler, Richard L. Greene, E. H. Thorndike, C. Sedlack, Arthur P. Smith, B. Valant-Spaight, D. L. Hartill, J. Fast, H. Krieg, R. Poling, K. K. Gan, Y. S. Gao, H. Yamamoto, H. Schwarthoff, J. Roy, H. P. Paar, Vivek Sharma, D. Coppage, G. Bonvicini, J. P. Alexander, C. R. Ng, X. Zhao, W. M. Sun, Ryszard Stroynowski, J. Lorenc, A. Shapiro, E. Nordberg, I. Narsky, P. Skubic, R. S. Galik, D. E. Jaffe, R. Ammar, C. Ward, I. C. Lai, S. Chan, J. Gronberg, S.C. Timm, Sacha E Kopp, M. S. Alam, M. A. Marsh, Dj Lange, N. Kwak, M. Bishai, Z. Xu, Sz Márka, A. Undrus, Karl Berkelman, S. E. Csorna, K. Kinoshita, G. W. Brandenburg, E. Dambasuren, Jing Wang, G. Majumder, D. H. Miller, P. Gaidarev, R. Ayad, E. M. Potter, P. I. Hopman, D. Roberts, Richard Wilson, A. Gritsan, D. M. Asner, Y. Li, C. Gwon, P. M. Patel, J. G. Thayer, D. Riley, S. Schrenk, Yanwen Liu, J. G. Smith, C. P. Jessop, S. Prell, T. Hart, T. Riehle, M. L. Perl, Yuichi Kubota, D. Ugolini, S. W. Gray, P. Pomianowski, L. Zhou, Ilya Kravchenko, C. D. Jones, J. W. Hinson, Yurii Maravin, J. L. Rodriguez, Frank Würthwein, G. Viehhauser, N. B. Mistry, A. Ershov, M. Athanas, D. Peterson, K. W. McLean, Sheldon Stone, Paul Avery, W. T. Ford, A. I. Rubiera, R. D. Kass, S. von Dombrowski, Marina Artuso, R. Davis, George D Gollin, J. D. Richman, and B. E. Berger
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Particle decay, 010308 nuclear & particles physics, Electron–positron annihilation, Tau neutrino, 0103 physical sciences, 010306 general physics, 01 natural sciences
Abstract: From a data sample of 29058 ${\ensuremath{\tau}}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ decays observed in the CLEO detector we derive a 95% confidence upper limit on the tau neutrino mass of 28 MeV.
Published: 2000
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529. Measurement ofB→ρlνdecay and|Vub

Author: T. Hart, T. Riehle, N. Kwak, M. Bishai, H. Marsiske, M. Dickson, R. M. Hans, S. Glenn, M. Ogg, Andreas Warburton, B. H. Behrens, B. K. Heltsley, E. Lipeles, S. J. Lee, G. D. Gollin, D. Ugolini, J. Zheng, K. K. Gan, G. Eigen, V. Fadeyev, Richard L. Greene, E. H. Thorndike, K. W. Edwards, A. Ershov, R. Davis, S. W. Gray, I. P.J. Shipsey, J. Roy, W. M. Sun, T. O. Meyer, B. Valant-Spaight, C. Bebek, D. Coppage, H. Krieg, G. Bonvicini, J. P. Alexander, T. E. Coan, J. Urheim, X. Zhao, C. R. Ng, Ryszard Stroynowski, W. T. Ford, A. I. Rubiera, R. D. Kass, S. E. Csorna, G. C. Moneti, Vivek Sharma, A. Smith, P. G. Thies, C. Sedlack, G. E. Gladding, S. Schrenk, Yanwen Liu, J. G. Smith, C. P. Jessop, E. I. Shibata, L. P. Perera, J. Lorenc, T. Wlodek, A. J. Weinstein, Tomasz Skwarnicki, S. Prell, Y. Kwon, V. Savinov, M. Athanas, K. M. Ecklund, A. L. Lyon, J. J. Thaler, A. Shapiro, H. N. Nelson, D. Z. Besson, D. Peterson, T. Bergfeld, P. Skubic, S. Kotov, K. W. McLean, E. Johnson, D. L. Kreinick, K. Kinoshita, S. von Dombrowski, Sheldon Stone, G. W. Brandenburg, S. J. Richichi, R. Janicek, P. Pomianowski, I. Narsky, T. E. Browder, Paul Avery, M. Lohner, A. Titov, D. E. Jaffe, L. Zhou, T. S. Hill, Shuai Chen, A. Anastassov, Ilya Kravchenko, L. K. Gibbons, V. V. Frolov, C. D. Jones, D. Y.J. Kim, I. Korolkov, R. Baker, J. W. Hinson, John Yelton, R. Mahapatra, M.A. Palmer, Karl Berkelman, Yurii Maravin, R. Ehrlich, Richard Wilson, A. Gritsan, R. Ayad, G. J. Zhou, S. Schuh, E. M. Potter, D. L. Hartill, J. L. Rodriguez, Ron Poling, C. Plager, S. Anderson, G. Masek, P. I. Hopman, D. S. Crowcroft, Juliet Ritchie Patterson, Sacha E Kopp, Frank Würthwein, D. Roberts, M. S. Alam, G. Viehhauser, E. Dambasuren, Jing Wang, J. Fast, N. B. Mistry, G. Majumder, Z. Xu, H. Yamamoto, H. Schwarthoff, H. P. Paar, Marina Artuso, X. J. Zhou, R. Ammar, Sz Márka, Horst Severini, F. R. Wappler, J. D. Richman, R. A. Briere, H. Kagan, Alice Bean, I. C. Lai, D. H. Miller, S. Chan, Jason Sang Hun Lee, E. Nordberg, N. Menon, P. Gaidarev, V. Boisvert, A. Eppich, M. A. Marsh, A. Undrus, S. B. Athar, R. J. Morrison, Mats A Selen, K. Honscheid, A. J. Sadoff, C. Ward, T. K. Nelson, D. Riley, J. Gronberg, S.C. Timm, M. M. Zoeller, J. E. Duboscq, Dj Lange, Y. S. Gao, C.Y. Prescott, M. L. Perl, A. H. Mahmood, Yuichi Kubota, B. E. Berger, Alain Bellerive, Jianqiao Ye, D. M. Asner, Y. Li, C. Gwon, P. M. Patel, A. D. Foland, J. G. Thayer, J. Williams, Philip Baringer, R. Godang, T. Lee, M. Schmidtler, R. Mountain, P. S. Drell, D. G. Cassel, I. Karliner, B. I. Eisenstein, K. Lingel, J. Ernst, D. Cinabro, B. Gittelman, E. von Toerne, and J. J. O'Neill
Subjects: Physics, Semileptonic decay, Nuclear and High Energy Physics, Muon, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, 01 natural sciences, Crystallography, 0103 physical sciences, B meson, Cornell Electron Storage Ring, 010306 general physics, Energy (signal processing)
Abstract: Using a sample of 3.3x10{sup 6} {upsilon}(4S){yields}BB(bar sign) events collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we measure B(B{yields}{rho}l{nu}), |V{sub ub}|, and the partial rate ({delta}{gamma}) in three bins of q{sup 2}{identical_to}(p{sub B}-p{sub {rho}}){sup 2}. We find B(B{sup 0}{yields}{rho}{sup -}l{sup +}{nu})=(2.69{+-}0.41{sub -0.40}{sup +0.35}{+-}0.50)x10{sup -4}, |V{sub ub}|=(3.23{+-}0.24{sub -0.26}{sup +0.23}{+-}0.58)x10{sup -3}, {delta}{gamma}(0
Published: 2000
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530. Study of Exclusive Radiative B Meson Decays

Author: J. Zheng, Y. Kwon, V. Savinov, F. Blanc, G. E. Gladding, H. Marsiske, D. Z. Besson, Vivek Sharma, P. S. Drell, A. Wolf, A. Smith, V. Fadeyev, Karl Berkelman, K. K. Gan, Sacha E Kopp, M. S. Alam, S. Schrenk, S. Schuh, D. L. Hartill, K. M. Ecklund, C. P. Jessop, M. Saleem, B. Valant-Spaight, L. Ling, A. L. Lyon, M.A. Palmer, V. Pavlunin, J. Ernst, S. Prell, A. Ershov, C. D. Jones, L. P. Perera, A. J. Weinstein, J. J. Thaler, Alice Bean, Jason Sang Hun Lee, D. L. Kreinick, Daniel P Cronin-Hennessy, X. Zhao, S. B. Athar, Tomasz Skwarnicki, D. E. Jaffe, D. Cinabro, J. Urheim, S.C. Timm, B. E. Berger, T. E. Browder, G. Masek, D. G. Cassel, V. Boisvert, A. Eppich, R. A. Briere, S. J. Richichi, B. Gittelman, R. Ayad, J. J.O. Neill, B. H. Behrens, E. M. Potter, N. Kwak, P. I. Hopman, J. L. Rodriguez, D. Y.J. Kim, Dj Lange, E. Dambasuren, G. Viehhauser, Jing Wang, G. Majumder, Horst Severini, J. W. Hinson, Y. S. Gao, D. M. Asner, Y. Li, C. Gwon, M. Lohner, R. M. Hans, L. K. Gibbons, V. V. Frolov, N. B. Mistry, Yurii Maravin, P. M. Patel, T. Hart, F. Würthwein, J. G. Thayer, D. H. Miller, G. J. Zhou, J. R. Patterson, D. Hufnagel, K. W. Mc Lean, Xingjiang Zhou, P. Gaidarev, G. Eigen, R. Ammar, Z. Xu, T. Riehle, A. D. Foland, I. Danko, Richard Wilson, A. Gritsan, Sz Márka, M. Dickson, Andreas Warburton, S. Ahmed, C. Bebek, I. C. Lai, T. K. Pedlar, John Yelton, R. Mahapatra, M. M. Zoeller, A. H. Mahmood, D. Peterson, N. Menon, H. P. Paar, D. Riley, B. K. Heltsley, E. von Toerne, D. Ugolini, I. Karliner, E. Lipeles, S. J. Lee, Ron Poling, C. Plager, S. Anderson, R. Janicek, J. Williams, S. W. Gray, S. E. Csorna, A. Shapiro, T. Wlodek, A. Undrus, J. Roy, Ian Shipsey, E. H. Thorndike, S. Karamov, M. L. Perl, C. Boulahouache, E. Nordberg, W. M. Sun, K. Kinoshita, Yuichi Kubota, M. A. Marsh, Ryszard Stroynowski, B. I. Eisenstein, A. Magerkurth, G. W. Brandenburg, G. Bonvicini, J. P. Alexander, W. T. Ford, A. I. Rubiera, R. D. Kass, F. R. Wappler, J. B. Thayer, C. Sedlack, G. C. Moneti, Sheldon Stone, P. G. Thies, Paul Avery, R. J. Morrison, Mats A Selen, Jiejun Wu, T. S. Hill, A. J. Sadoff, P. Skubic, R. Godang, M. Schmidtler, E. I. Shibata, R. Ehrlich, R. Mountain, T. E. Coan, E. Johnson, R. Davis, George D Gollin, L. Jian, Marina Artuso, Shuai Chen, A. Anastassov, R. Baker, K. Honscheid, J. Fast, J. E. Duboscq, H. Yamamoto, H. Schwarthoff, K. Bukin, James G. Smith, K. W. Edwards, I. Narsky, T. Bergfeld, Harris Kagan, C.Y. Prescott, Jianqiao Ye, and T. O. Meyer
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Radiative decay, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, Omega, High Energy Physics - Experiment, Crystallography, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Radiative transfer, CP violation, B meson, 010306 general physics
Abstract: We have investigated exclusive, radiative B meson decays to charmless mesons (\rho, \omega, \phi, K^*(892), K^*_2(1430)) in 9.7\times 10^6 BBbar decays accumulated with the CLEO detector. The B -> K^*(892)\gamma branching fractions are determined to be Br(B^0 -> K^{*0}(892)\gamma) = (4.55 +0.72-0.68 +-0.34)\times 10^-5 and Br(B^+ -> K^{*+}(892)\gamma) = (3.76 +0.89-0.83 +-0.28)\times 10^-5. We have searched for CP asymmetry in B -> K^*(892)\gamma decays and measure Acp = +0.08 +-0.13 +-0.03. We also report the first observation of the decay B -> K^*_2(1430)\gamma with a branching fraction of (1.66 +0.59-0.53 +-0.13)\times 10^-5 and determine $Br(B -> K^*_2(1430)\gamma)/Br(B -> K^*(892)\gamma) = 0.39 +0.15-0.13 consistent with only one of two available theoretical models. No significant evidence for the decays B -> \rho\gamma and B^0 -> \omega\gamma is found and we limit Br(B -> (\rho/\omega)\gamma)/Br(B -> K^{*}(892)\gamma) < 0.32 at 90% CL. We also find no evidence for the exotic decay B^0 -> \phi\gamma., Comment: 12 pages, 3 figures, submitted to Phys. Rev. Letters
Published: 1999

531. Hadronic structure in the decayτ−→ντπ−π0π0and the sign of the tau neutrino helicity

Author: P. S. Drell, K. Lingel, J. Ernst, D. Cinabro, B. Gittelman, R. Godang, C. Sedlack, J. J. O'Neill, T. E. Coan, T. Lee, M. Schmidtler, H. Kagan, J. Lorenc, X. Zhao, B. H. Behrens, W. T. Ford, A. J. Weinstein, A. I. Rubiera, R. D. Kass, Richard L. Greene, P. Pomianowski, N. Kwak, M. Bishai, Tomasz Skwarnicki, S. E. Csorna, H. N. Nelson, E. H. Thorndike, P. Skubic, T. O. Meyer, S. J. Richichi, L. K. Gibbons, L. Zhou, Ilya Kravchenko, Karl Berkelman, C. D. Jones, R. Mountain, D. Coppage, Sheldon Stone, D. E. Jaffe, I. Narsky, G. Bonvicini, J. I. Thaler, Paul Avery, J. W. Hinson, Alain Bellerive, J. P. Alexander, K. Kinoshita, B. E. Berger, T. K. Nelson, C. Prescot, C. Bebek, G. W. Brandenburg, A. Ershov, D. M. Asner, S. Kotov, Y. Li, C. Gwon, Yurii Maravin, S. Schrenk, Yanwen Liu, J. G. Smith, R. Janicek, G. J. Zhou, P. M. Patel, C. P. Jessop, Shuai Chen, A. Anastassov, I. Korolkov, R. Baker, J. G. Thayer, R. Davis, C. Ward, Jianqiao Ye, T. Wlodek, S. Prell, R. J. Morrison, Mats A Selen, Y. Kwon, V. Savinov, J. Gronberg, D. Riley, S.C. Timm, M. M. Zoeller, R. S. Galik, H. Marsiske, Z. Ling, T. Hart, D. Z. Besson, J. Urheim, A. J. Sadoff, I. P.J. Shipsey, T. Riehle, K. W. Edwards, E. M. Potter, P. G. Thies, P. I. Hopman, M. L. Perl, D. L. Hartill, A. Soffer, Dj Lange, D. Ugolini, D. Roberts, J. Roy, H. P. Paar, Sacha E Kopp, V. Fadeyev, Yuichi Kubota, E. I. Shibata, C. Plager, S. Anderson, W. M. Sun, E. Dambasuren, S. W. Gray, Ryszard Stroynowski, M. S. Alam, Jing Wang, G. Majumder, M. Dickson, M. Athanas, S. von Dombrowski, D. S. Crowcroft, Richard Wilson, A. Gritsan, D. Peterson, B. Valant-Spaight, D. G. Cassel, A. Shapiro, G. Eigen, E. Johnson, K. W. McLean, T. Bergfeld, D. Y.J. Kim, E. Nordberg, M.A. Palmer, Z. Xu, K. Honscheid, S. Schuh, Sz Márka, D. H. Miller, N. Menon, A. Wolf, I. Karliner, P. Gaidarev, F. R. Wappler, A. Undrus, Alice Bean, J. E. Duboscq, J. Fast, H. Yamamoto, H. Schwarthoff, Jason Sang Hun Lee, B. I. Eisenstein, V. Boisvert, J. L. Rodriguez, A. Eppich, Frank Würthwein, S. B. Athar, G. Viehhauser, N. B. Mistry, R. Ammar, I. C. Lai, S. Chan, A. Titov, John Yelton, R. Mahapatra, M. A. Marsh, S. Ayad, M. Lohner, H. Krieg, R. Poling, C. R. Ng, G. Masek, Juliet Ritchie Patterson, X. J. Zhou, Horst Severini, R. A. Briere, A. H. Mahmood, B. K. Heltsley, E. Lipeles, S. J. Lee, G. D. Gollin, D. L. Kreinick, T. E. Browder, G. E. Gladding, K. M. Ecklund, A. L. Lyon, Y. S. Gao, T. S. Hill, R. Ehrlich, A. D. Foland, J. Williams, Philip Baringer, R. M. Hans, S. Glenn, M. Ogg, Andreas Warburton, Marina Artuso, L. P. Perera, J. Zheng, K. K. Gan, G. C. Moneti, Vivek Sharma, and A. Smith
Subjects: Physics, Semileptonic decay, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Dalitz plot, 01 natural sciences, Pion, Tau neutrino, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract: Based on a sample corresponding to $4.3\ifmmode\times\else\texttimes\fi{}{10}^{6}$ produced $\ensuremath{\tau}$-pair events, we have studied hadronic dynamics in the decay ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{\ensuremath{\tau}}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ in data recorded by the CLEO II detector operating at the CESR ${e}^{+}{e}^{\ensuremath{-}}$ collider. The decay is dominated by the process ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{\ensuremath{\tau}}{a}_{1}^{\ensuremath{-}}(1260),$ with the ${a}_{1}^{\ensuremath{-}}$ meson decaying to three pions predominantly via the lowest dimensional (mainly S-wave) ${\ensuremath{\rho}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$ Born amplitude. From model-dependent fits to the Dalitz plot and angular observables in bins of $3\ensuremath{\pi}$ mass, we find significant additional contributions from amplitudes for ${a}_{1}$ decay to $\ensuremath{\sigma}\ensuremath{\pi},$ ${f}_{0}(1370)\ensuremath{\pi},$ and ${f}_{2}(1270)\ensuremath{\pi},$ as well as higher dimensional ${a}_{1}\ensuremath{\rightarrow}\ensuremath{\rho}\ensuremath{\pi}$ and ${\ensuremath{\rho}}^{\ensuremath{'}}\ensuremath{\pi}$ amplitudes. Notably, the squared $\ensuremath{\sigma}\ensuremath{\pi}$ amplitude accounts for approximately 15% of the total ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{\ensuremath{\tau}}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ rate in the models considered. The data are well described using couplings to these amplitudes that are independent of the $3\ensuremath{\pi}$ mass. These amplitudes also provide a good description for the ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{\ensuremath{\tau}}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ Dalitz plot distributions. We have searched for additional contributions from ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{\ensuremath{\tau}}{\ensuremath{\pi}}^{\ensuremath{'}}\ensuremath{-}(1300).$ We place $90%$ confidence level upper limits on the branching fraction for this channel of between $1.0\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ and $1.9\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4},$ depending on the ${\ensuremath{\pi}}^{\ensuremath{'}}$ decay mode considered. The ${\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ mass spectrum is parametrized by a Breit-Wigner form with a mass-dependent width which is specified according to the results of the Dalitz plot fits plus an unknown coupling to an ${a}_{1}\ensuremath{\rightarrow}{K}^{*}K$ amplitude. From a ${\ensuremath{\chi}}^{2}$ fit using this parametrization, we extract the pole mass and width of the ${a}_{1},$ as well as the magnitude of the ${K}^{*}K$ coupling. We have also investigated the impact of a possible contribution from the ${a}_{1}^{\ensuremath{'}}(1700)$ meson on this spectrum. Finally, exploiting the parity-violating angular asymmetry in ${a}_{1}\ensuremath{\rightarrow}3\ensuremath{\pi}$ decay, we determine the signed value of the $\ensuremath{\tau}$ neutrino helicity to be ${h}_{{\ensuremath{\nu}}_{\ensuremath{\tau}}}=\ensuremath{-}1.02\ifmmode\pm\else\textpm\fi{}0.13 (\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.03 (\mathrm{s}\mathrm{y}\mathrm{s}\mathrm{t}+\mathrm{m}\mathrm{o}\mathrm{d}\mathrm{e}\mathrm{l}),$ confirming the left-handedness of the $\ensuremath{\tau}$ neutrino.
Published: 1999
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532. Υ dipion transitions at energies near theΥ(4S)

Author: J. J. Thaler, C.Y. Prescott, G. C. Moneti, Z. Ling, Jianqiao Ye, Y. Li, I. P.J. Shipsey, M. Lohner, E. I. Shibata, B. K. Heltsley, E. Lipeles, S. J. Lee, G. D. Gollin, D. Y.J. Kim, G. E. Gladding, K. M. Ecklund, A. L. Lyon, R. Davis, James G. Smith, K. W. Edwards, R. Godang, T. Lee, M. Schmidtler, P. Skubic, C. Bebek, E. Johnson, S. von Dombrowski, D. L. Kreinick, Y. Kwon, V. Savinov, D. Z. Besson, P. Pomianowski, T. Wlodek, T. Bergfeld, S. Roberts, R. Mountain, L. Zhou, Ilya Kravchenko, C. D. Jones, Jungil Lee, R. Ammar, A. H. Mahmood, J. W. Hinson, T. Hart, Richard Wilson, A. Gritsan, J. Kandaswamy, N. Menon, I. C. Lai, S. Chan, A. Wolf, K. K. Gan, D. E. Jaffe, T. Riehle, D. G. Cassel, W. T. Ford, M.A. Palmer, A. I. Rubiera, R. D. Kass, M. A. Marsh, Marina Artuso, A. D. Foland, A. Titov, D. Ugolini, M. Athanas, K. Honscheid, J. Roy, B. H. Behrens, S. W. Gray, John Yelton, R. Mahapatra, Yurii Maravin, D. Peterson, I. Karliner, W. M. Sun, Ryszard Stroynowski, K. W. McLean, J. Fast, H. Schwarthoff, D. Riley, J. E. Duboscq, B. I. Eisenstein, S. Schrenk, Yanwen Liu, C. P. Jessop, Shuai Chen, A. Anastassov, I. Korolkov, A. Soffer, S. Anderson, S. Prell, J. Bartelt, R. Baker, D. S. Crowcroft, S. B. Athar, Saroj Kumar Sahu, A. Ershov, L. K. Gibbons, J. L. Rodriguez, Sheldon Stone, Paul Avery, H. Yamamoto, F. R. Wappler, T. K. Nelson, M. L. Perl, H. Kagan, Philip Baringer, P. S. Drell, I. Narsky, Yuichi Kubota, R. J. Morrison, Mats A Selen, A. J. Sadoff, M. M. Zoeller, Frank Würthwein, G. Viehhauser, J. Urheim, H. Marsiske, N. B. Mistry, K. Lingel, V. Fadeyev, Alain Bellerive, B. Valant-Spaight, J. S. Miller, J. Ernst, D. M. Asner, D. Cinabro, Y. S. Gao, P. M. Patel, B. Gittelman, T. S. Hill, R. Ehrlich, B. E. Berger, J. J. O'Neill, G. Masek, T. E. Browder, Juliet Ritchie Patterson, Horst Severini, R. A. Briere, D. L. Hartill, H. Krieg, R. Poling, C. R. Ng, C. Darling, L. P. Perera, J. Zheng, Vivek Sharma, A. Smith, R. M. Hans, S. Glenn, M. Ogg, Andreas Warburton, H. P. Paar, A. Shapiro, S. Kotov, E. Nordberg, R. Janicek, G. J. Zhou, S. Schuh, Alice Bean, T. E. Coan, A. J. Weinstein, Tomasz Skwarnicki, V. Boisvert, H. N. Nelson, S. J. Richichi, Xingjiang Zhou, G. Eigen, M. Dickson, Richard L. Greene, E. H. Thorndike, D. Coppage, G. Bonvicini, J. P. Alexander, R. S. Galik, Sacha E Kopp, M. S. Alam, N. Kwak, M. Bishai, Karl Berkelman, E. Dambasuren, Jing Wang, Z. Xu, Sz Márka, D. H. Miller, P. Gaidarev, A. Undrus, C. Ward, J. Gronberg, S.C. Timm, Dj Lange, S. E. Csorna, K. Kinoshita, G. W. Brandenburg, E. M. Potter, P. I. Hopman, and D. Roberts
Subjects: Combinatorics, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, 0103 physical sciences, Cornell Electron Storage Ring, 010306 general physics, 01 natural sciences
Abstract: Using a $4.19{\mathrm{fb}}^{\mathrm{\ensuremath{-}}1}$ data sample collected with the CLEO II detector at the Cornell Electron Storage Ring, we have searched for dipion transitions between pairs of \ensuremath{\Upsilon} resonances at center of mass energies ${E}_{\mathrm{c}.\mathrm{m}.}=10.58\mathrm{GeV}$ and ${E}_{\mathrm{c}.\mathrm{m}.}=10.52\mathrm{GeV}.$ We obtain the 90% confidence level upper limits $\mathcal{B}(\ensuremath{\Upsilon}(4S)\ensuremath{\rightarrow}\ensuremath{\Upsilon}(2S){\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})l3.9\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ and $\mathcal{B}(\ensuremath{\Upsilon}(4S)\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1S){\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})l1.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}.$ We also observe the transitions $\ensuremath{\Upsilon}(3S)\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1S){\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}},$ $\ensuremath{\Upsilon}(3S)\ensuremath{\rightarrow}\ensuremath{\Upsilon}(2S){\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}},$ and $\ensuremath{\Upsilon}(2S)\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1S){\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}},$ from which we measure the cross sections for the radiative processes ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\Upsilon}(3S)\ensuremath{\gamma}$ and ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\Upsilon}(2S)\ensuremath{\gamma}.$ We obtain ${\ensuremath{\sigma}}_{e\stackrel{\ensuremath{\rightarrow}}{e}\ensuremath{\Upsilon}(3S)\ensuremath{\gamma}}=(17.8\ifmmode\pm\else\textpm\fi{}3.0\ifmmode\pm\else\textpm\fi{}1.7)\mathrm{pb}$ and ${\ensuremath{\sigma}}_{e\stackrel{\ensuremath{\rightarrow}}{e}\ensuremath{\Upsilon}(2S)\ensuremath{\gamma}}=(15.5\ifmmode\pm\else\textpm\fi{}1.3\ifmmode\pm\else\textpm\fi{}1.4)\mathrm{pb}$ at ${E}_{\mathrm{c}.\mathrm{m}.}=10.58\mathrm{GeV},$ and ${\ensuremath{\sigma}}_{e\stackrel{\ensuremath{\rightarrow}}{e}\ensuremath{\Upsilon}(3S)\ensuremath{\gamma}}=(27.3\ifmmode\pm\else\textpm\fi{}5.0\ifmmode\pm\else\textpm\fi{}2.6)\mathrm{pb}$ and ${\ensuremath{\sigma}}_{e\stackrel{\ensuremath{\rightarrow}}{e}\ensuremath{\Upsilon}(2S)\ensuremath{\gamma}}=(16.3\ifmmode\pm\else\textpm\fi{}1.8\ifmmode\pm\else\textpm\fi{}1.5)\mathrm{pb}$ at ${E}_{\mathrm{c}.\mathrm{m}.}=10.52\mathrm{GeV},$ which we compare with theoretical predictions.
Published: 1999
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533. Measurement of the mass splittings between thebb¯χb,J(1P)states

Author: Sz Márka, A. Wolf, G. E. Gladding, J. Roy, Ryszard Stroynowski, Alain Bellerive, J. Zheng, D. M. Asner, Y. Li, P. M. Patel, K. K. Gan, K. M. Ecklund, A. L. Lyon, S. Patton, S. B. Athar, M. Dickson, D. L. Hartill, A. Soffer, Jing Wang, M. Goldberg, G. C. Moneti, Vivek Sharma, C. Ward, J. Gronberg, Marina Artuso, S. Anderson, D. S. Crowcroft, D. Riley, J. Bartelt, J. Urheim, D. H. Miller, A. Smith, S.C. Timm, J. Kandaswamy, R. Davis, George D Gollin, L. P. Perera, P. Gaidarev, M. Athanas, Sheldon Stone, M. L. Perl, M. Chadha, F. R. Wappler, D. Peterson, K. W. McLean, Yuichi Kubota, Paul Avery, D. He, D. W. Bliss, A. D. Foland, H. Marsiske, D. L. Kreinick, T. E. Browder, Yurii Maravin, P. I. Hopman, A. Undrus, Dj Lange, S. von Dombrowski, Richard Wilson, A. Gritsan, T. K. Nelson, R. Godang, T. Lee, M. Schmidtler, M. Sung, John Yelton, D. Roberts, R. Mountain, Sacha E Kopp, M. Yurko, C. Bebek, M. S. Alam, V. Fadeyev, D. G. Cassel, R. M. Hans, M. M. Zoeller, Y. Kwon, V. Savinov, S. Kotov, D. Z. Besson, R. Janicek, G. J. Zhou, Philip Baringer, I. Karliner, S. Glenn, M. Ogg, L. K. Gibbons, B. I. Eisenstein, Xiangjun Xing, H. Kagan, S. E. Csorna, I. Volobouev, Richard L. Greene, E. H. Thorndike, A. Ershov, B. Valant-Spaight, E. I. Shibata, Kenneth Bloom, K. Kinoshita, G. W. Brandenburg, D. Coppage, N. Kwak, G. Bonvicini, J. P. Alexander, M. Bishai, P. Skubic, D. E. Jaffe, B. K. Heltsley, R. J. Morrison, Mats A Selen, J. L. Rodriguez, D. Fujino, G. Masek, S. J. Lee, Juliet Ritchie Patterson, J. S. Miller, G. Eigen, Frank Würthwein, W. T. Ford, G. Viehhauser, E. Johnson, N. B. Mistry, A. J. Sadoff, F. Azfar, R. D. Kass, V. Shelkov, Y. S. Gao, S. Roberts, H. Yamamoto, R. Ammar, R. S. Galik, I. C. Lai, S. Chan, B. E. Berger, B. H. Behrens, J. J. O'Neill, T. E. Coan, D. B. MacFarlane, S. Schuh, A. J. Weinstein, S. Schrenk, Z. Ling, M. A. Marsh, D. Cinabro, I. P.J. Shipsey, T. S. Hill, R. Ehrlich, B. Gittelman, Karl Berkelman, Alice Bean, Yanwen Liu, J. G. Smith, C. P. Jessop, Tomasz Skwarnicki, H. N. Nelson, X. J. Zhou, V. Boisvert, Vivek Jain, A. Efimov, M.A. Palmer, D. Y.J. Kim, S. J. Richichi, Horst Severini, R. A. Briere, S. Prell, P. S. Drell, K. Lingel, H. P. Paar, Jungil Lee, J. Ernst, N. Menon, E. Nordberg, P. Pomianowski, R. Poling, C. R. Ng, C. Darling, L. Zhou, Ilya Kravchenko, C. D. Jones, J. W. Hinson, T. Hart, T. Riehle, D. Ugolini, S. W. Gray, K. W. Edwards, T. Bergfeld, J. Fast, H. Schwarthoff, C.Y. Prescott, Jianqiao Ye, A. Anastassov, I. Korolkov, R. Baker, J. Staeck, A. H. Mahmood, M. B. Spencer, J. J. Thaler, I. Narsky, M. Lohner, K. Honscheid, and J. E. Duboscq
Subjects: Physics, Nuclear and High Energy Physics, Crystallography, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, 0103 physical sciences, Invariant mass, 010306 general physics, 01 natural sciences
Abstract: We present new measurements of photon energies and branching fractions for the radiative transitions {Upsilon}(2S){r_arrow}{gamma}{chi}{sub b(J=0,1,2)}(1P). The masses of the {chi}{sub b} states are determined from the measured radiative photon energies. The ratio of mass splittings between the {chi}{sub b} substates, r{equivalent_to}(M{sub J=2}{minus}M{sub J=1})/(M{sub J=1}{minus}M{sub J=0}), with M the {chi}{sub b} mass, provides information on the nature of the b{bar b} confining potential. We find r(1P)=0.542{plus_minus}0.022{plus_minus}0.024. This value is somewhat lower than the previous world average, but more consistent with the theoretical expectation that r(1P){lt}r(2P); i.e., that this mass splitting ratio is smaller for the {chi}{sub b}(1P) states than for the {chi}{sub b}(2P) states. {copyright} {ital 1999} {ital The American Physical Society}
Published: 1999
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534. Charged Track Multiplicity in B Meson Decay

Author: Shuai Chen, A. Anastassov, I. Korolkov, R. Baker, R. Davis, D. E. Jaffe, L. Jian, George D Gollin, Yurii Maravin, S. E. Csorna, S. Schrenk, Yanwen Liu, J. G. Smith, C. P. Jessop, Marina Artuso, A. Wolf, D. L. Kreinick, J. J. Thaler, M. Lohner, K. Kinoshita, G. W. Brandenburg, S. Prell, T. E. Browder, N. Menon, B. H. Behrens, Y. S. Gao, Y. J. Kwon, S. B. Athar, E. Dambasuren, Jing Wang, G. Majumder, Ian Shipsey, D. H. Miller, J. Zheng, T. O. Meyer, C. Bebek, S. von Dombrowski, C. Sedlack, H. Marsiske, F. Blanc, P. Gaidarev, J. Roy, W. M. Sun, Ryszard Stroynowski, Z. Xu, Sz Márka, J. Lorenc, G. E. Gladding, A. D. Foland, D. L. Hartill, T. K. Nelson, C. Plager, S. Anderson, V. Savinov, V. Fadeyev, T. Wlodek, M. B. Spencer, Richard L. Greene, R. A. Briere, E. H. Thorndike, Jiejun Wu, K. M. Ecklund, P. Skubic, D. Z. Besson, Sheldon Stone, Paul Avery, A. L. Lyon, Vivek Sharma, J. Williams, B. Valant-Spaight, I. Narsky, Ilya Kravchenko, A. Smith, R. Ammar, A. Undrus, D. Peterson, Philip Baringer, K. W. McLean, J. W. Hinson, T. Hart, G. Bonvicini, J. P. Alexander, D. Y.J. Kim, I. C. Lai, K. K. Gan, S. Chan, L. P. Perera, M. M. Zoeller, X. Zhao, T. Riehle, L. K. Gibbons, W. T. Ford, J. Gronberg, S.C. Timm, V. V. Frolov, B. K. Heltsley, E. Lipeles, S. J. Lee, K. Honscheid, A. I. Rubiera, R. D. Kass, R. Ayad, E. M. Potter, D. Ugolini, P. I. Hopman, J. L. Rodriguez, M. A. Marsh, Frank Würthwein, T. S. Hill, S. W. Gray, G. Viehhauser, R. Ehrlich, F. R. Wappler, G. C. Moneti, J. E. Duboscq, K. W. Edwards, N. B. Mistry, P. G. Thies, Dj Lange, D. Roberts, R. M. Hans, L. Ling, Andreas Warburton, E. I. Shibata, A. Ershov, R. S. Galik, J. Urheim, E. Johnson, A. Titov, M.A. Palmer, Xingjiang Zhou, John Yelton, R. Mahapatra, Karl Berkelman, M. Dickson, M. Saleem, R. J. Morrison, Mats A Selen, A. J. Sadoff, N. Kwak, M. Bishai, Sacha E Kopp, H. Krieg, R. Poling, M. S. Alam, C. R. Ng, S. Ahmed, C. D. Jones, G. Masek, Juliet Ritchie Patterson, Horst Severini, B. E. Berger, J. D. Richman, E. von Toerne, J. J. O'Neill, D. Cinabro, T. Bergfeld, B. Gittelman, P. Pomianowskie, R. Godang, T. Lee, M. Schmidtler, J. Fast, H. Yamamoto, H. Schwarthoff, P. S. Drell, K. Lingel, R. Mountain, Harris Kagan, J. Ernst, C.Y. Prescott, D. G. Cassel, Jianqiao Ye, A. H. Mahmood, I. Karliner, B. I. Eisenstein, H. P. Paar, A. Shapiro, E. Nordberg, G. J. Zhou, T. E. Coan, A. J. Weinstein, Tomasz Skwarnicki, S. J. Richichi, S. Schuh, Alice Bean, Jason Sang Hun Lee, V. Boisvert, A. Eppich, G. Eigen, S. Kotov, R. Janicek, Richard Wilson, A. Gritsan, D. M. Asner, Y. Li, C. Gwon, P. M. Patel, J. G. Thayer, D. Riley, M. L. Perl, and Yuichi Kubota
Subjects: Semileptonic decay, Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, FOS: Physical sciences, Multiplicity (mathematics), 01 natural sciences, Charged particle, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, B meson, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, 010306 general physics
Abstract: We have used the CLEO II detector to study the multiplicity of charged particles in the decays of B mesons produced at the $\Upsilon(4S)$ resonance. Using a sample of 1.5 x 10^6 B meson pairs, we find the mean inclusive charged particle multiplicity to be 10.71 +- 0.02 +0.21/-0.15 for the decay of the pair. This corresponds to a mean multiplicity of 5.36 +- 0.01 +0.11/-0.08 for a single B meson. Using the same data sample, we have also extracted the mean multiplicities in semileptonic and nonleptonic decays. We measure a mean of 7.82 +- 0.05 +0.21/-0.19 charged particles per $B\bar{B}$ decay when both mesons decay semileptonically. When neither B meson decays semileptonically, we measure a mean charged particle multiplicity of 11.62 +- 0.04 +0.24/-0.18 per $B\bar{B}$ pair., Comment: 11 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS
Published: 1999
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535. 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
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536. Erratum: Experimental tests of lepton universality in τ decay [Phys. Rev. D 55, 2559 (1997)]

Author: R. Godang, T. Lee, M. Schmidtler, R. Janicek, S.C. Timm, J. Zheng, R. J. Wilson, K. K. Gan, T. Skwarnicki, Vipul Jain, A. Anastassov, M. Chadha, P. C. Kim, R. Mountain, M. Dickson, M. Goldberg, G. C. Moneti, James E. Fast, Ryszard Stroynowski, D. Fujino, Vivek Sharma, S.F. Schaffner, Jayashree Roy, Vitaliy Fadeyev, P. Rankin, S. B. Anderson, R. M. Hans, J. Masui, M.A. Palmer, T. K. Nelson, A. M. Smith, W. S. Brower, D. G. Cassel, M. Ogg, D. M. Asner, Robert K. Kutschke, G. H. A. Viehhauser, V.G. Shelkov, Igor Volobouev, M. M. Zoeller, D. He, Kenneth Bloom, S. Menary, P. Pomianowski, F. Li, Ilya Korolkov, Karl Berkelman, A. Efimov, E. I. Shibata, P. M. Patel, I. P. J. Shipsey, N. Katayama, M. Gao, J. Gronberg, H. P. Paar, R. Fulton, J. Urheim, R. Poling, E. Nordberg, Yurii Maravin, G. S. Ludwig, G. Eigen, Erik A. Johnson, Ilya Kravchenko, C. D. Jones, Michael Wood, T. E. Coan, D. B. MacFarlane, H. N. Nelson, S. J. Richichi, L. K. Gibbons, D. Ugolini, Richard L. Greene, E. H. Thorndike, June Hyuk Lee, F. Frasconi, D. A. Roberts, Anders Ryd, M. Athanas, N. Menon, Sz Márka, L. P. Perera, A. P. Freyberger, Shengfeng Yang, B. Nemati, A. Wolf, K. Lingel, J. W. Hinson, Harold S. Park, M. Sivertz, Alice Bean, D. Coppage, G. Bonvicini, J. P. Alexander, J. D. Richman, D. H. Miller, J. J. Thaler, T. Hart, B. I. Eisenstein, N. Hancock, R. Ammar, H. Yamamoto, D. W. Bliss, M. Lattery, D. Cinabro, T. Riehle, S. Kotov, B. C. Barish, A. J.R. Weinstein, I. C. Lai, S. Chan, S. Roberts, K. Honscheid, John E. Bartelt, J. L. Rodriguez, R. Wang, D. Riley, P. Skubic, B. E. Berger, M. A. Marsh, H. Kagan, B. Gittelman, P. Gaidarev, S. Blinov, R. Davis, S. W. Gray, B. H. Behrens, Frank Würthwein, H. Marsiske, S. Schrenk, J. E. Duboscq, K. W. Edwards, K. Cho, S. Schuh, Sacha E Kopp, Yanwen Liu, R. S. Galik, J. G. Smith, M. L. Perl, E. Gerndt, Yuichi Kubota, M. S. Alam, R. Wanke, S. D. Johnson, N. B. Mistry, M. Yurko, Y. J. Kwon, A. Soffer, S. E. Csorna, A. H. Mahmood, C. P. Ward, D. Gibaut, Alexander Undrus, D. Z. Besson, T. Bergfeld, K. Kinoshita, N. Kwak, G. W. Brandenburg, M. Bishai, P. S. Drell, C.Y. Prescott, R. Elia, W. T. Ford, Jianqiao Ye, J. Staeck, R. D. Kass, R. Balest, J. Mevissen, S. J. Patton, P. I. Hopman, M. Lohner, S. B. Athar, J. J. O'Neill, C. Qiao, J. Kandaswamy, M. B. Spencer, Marina Artuso, I. Narsky, C. P. O'Grady, Sheldon Stone, Paul Avery, J. A. Ernst, D. Peterson, K. W. McLean, R. J. Morrison, Mats A Selen, W. R. Ross, A. J. Sadoff, R. Ehrlich, John Yelton, D. L. Hartill, D. S. Crowcroft, D. J. Lange, F. R. Wappler, A. D. Foland, K. D. Fisher, Yurii V. Mukhin, Z. Ling, Philip Baringer, D. Y.J. Kim, Xiangjun Xing, J. S. Miller, Y. S. Gao, D. M. Coffman, B. K. Heltsley, G. D. Gollin, D. L. Kreinick, C. Bebek, T. E. Browder, V. Savinov, C. P. Jessop, H. A. Cho, G. E. Gladding, K. M. Ecklund, C. R. Ng, C. Darling, I. Karliner, Michael S. Witherell, M.K. Sung, G. Masek, Juliet Ritchie Patterson, Alain Bellerive, X. J. Zhou, Horst Severini, and R. A. Briere
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Lepton, Universality (dynamical systems)
Published: 1998
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537. Search for Exclusive Rare Baryonic Decays of $B$ Mesons

Author: R. Ammar, Z. Ling, R. A. Briere, P. Pomianowski, I. C. Lai, S. Chan, J. Kandaswamy, H. P. Paar, L. Zhou, Ilya Kravchenko, C. D. Jones, D. Y.J. Kim, M. A. Marsh, L. K. Gibbons, H. Tajima, J. W. Hinson, A. Shapiro, E. Nordberg, A. D. Foland, M. Athanas, D. Peterson, T. K. Nelson, B. E. Berger, Philip Baringer, M.A. Palmer, K. W. McLean, M. M. Zoeller, A. Wolf, D. G. Cassel, A. H. Mahmood, J. S. Miller, P. S. Drell, Y. S. Gao, K. Lingel, J. Ernst, C. Ward, T. S. Hill, J. Gronberg, S.C. Timm, Jungil Lee, T. Hart, Dj Lange, I. Karliner, B. I. Eisenstein, R. Godang, T. Lee, M. Schmidtler, S. von Dombrowski, H. Marsiske, J. Fast, H. Schwarthoff, V. Fadeyev, Yurii Maravin, R. Ehrlich, T. E. Coan, B. Valant-Spaight, G. J. Zhou, N. Menon, Harris Kagan, C.Y. Prescott, H. Yamamoto, G. E. Gladding, S. B. Athar, Xingjiang Zhou, S. Schuh, T. Riehle, R. Mountain, J. Roy, W. M. Sun, Ryszard Stroynowski, Sacha E Kopp, M. S. Alam, M. Dickson, J. J. Thaler, Jianqiao Ye, K. M. Ecklund, Alice Bean, W. T. Ford, B. H. Behrens, Karl Berkelman, D. Ugolini, A. Ershov, A. J. Weinstein, J. J. O'Neill, V. Boisvert, A. I. Rubiera, A. L. Lyon, J. Urheim, R. D. Kass, Tomasz Skwarnicki, H. N. Nelson, James G. Smith, Richard L. Greene, E. H. Thorndike, Saroj Kumar Sahu, M. Ogg, S. J. Richichi, S. W. Gray, D. Cinabro, R. Davis, D. L. Kreinick, D. Coppage, G. Bonvicini, J. P. Alexander, Marina Artuso, B. Gittelman, M. Lohner, N. Katayama, Z. Xu, T. E. Browder, C. Bebek, G. Eigen, T. Bergfeld, R. J. Morrison, Sheldon Stone, Mats A Selen, Paul Avery, S. Roberts, I. Narsky, Sz Márka, J. L. Rodriguez, T. Wlodek, Frank Würthwein, Shuai Chen, A. Anastassov, I. Korolkov, R. Baker, G. Viehhauser, A. J. Sadoff, S. Kotov, S. Schrenk, Yanwen Liu, C. P. Jessop, R. Janicek, N. B. Mistry, V. Savinov, S. Prell, K. Honscheid, C. M. Korte, B. K. Heltsley, J. E. Duboscq, K. W. Edwards, D. Z. Besson, E. Lipeles, S. J. Lee, G. D. Gollin, A. Titov, John Yelton, R. Mahapatra, A. Undrus, A. Soffer, S. Anderson, D. S. Crowcroft, Youngjoon Kwon, F. R. Wappler, K. K. Gan, Alain Bellerive, D. M. Asner, Y. Li, P. M. Patel, D. Riley, J. Bartelt, N. Kwak, M. Bishai, M. L. Perl, D. E. Jaffe, Yuichi Kubota, Ian Shipsey, Richard Wilson, A. Gritsan, P. Skubic, D. L. Hartill, H. Krieg, R. Poling, C. R. Ng, C. Darling, G. Masek, Juliet Ritchie Patterson, Horst Severini, R. M. Hans, S. Glenn, Andreas Warburton, J. Zheng, Vivek Sharma, A. Smith, L. P. Perera, S. E. Csorna, K. Kinoshita, G. W. Brandenburg, G. C. Moneti, E. I. Shibata, E. Johnson, E. M. Potter, P. I. Hopman, D. Roberts, E. Dambasuren, Jing Wang, D. H. Miller, and P. Gaidarev
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, FOS: Physical sciences, 01 natural sciences, 3. Good health, High Energy Physics - Experiment, Baryon, Combinatorics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, B meson, Atomic physics, 010306 general physics
Abstract: We report the results of a search for the rare baryonic decay modes B -> Lambda Lambdabar, B -> Lambdabar p, B -> Lambdabar p pi, and B -> p pbar using 5.8M BBbar pairs collected with the CLEO detector. We see no statistically significant signals in any of these modes and set 90% confidence level upper limits on their branching fractions, B(B -> Lambda Lambdabar) < 3.9 \times 10^{-6}, B(B -> Lambdabar p) < 2.6 \times 10^{-6}, B(B -> Lambdabar p pi) < 1.3 \times 10^{-5}, and B(B -> p pbar) < 7.0 \times 10^{-6}., 10 pages, postscript file also available through http://w4.lns.cornell.edu/public/CLNS
Published: 1998

538. Measurement of the branching ratios for the decays ofDs+toηπ+,η′π+,ηρ+,andη′ρ+

Author: C. P. Jessop, K. Lingel, H. Marsiske, M. L. Perl, S. F. Schaffner, D. Ugolini, R. Wang, X. Zhou, T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, V. Shelkov, J. Staeck, R. Stroynowski, I. Volobouev, J. Ye, M. Artuso, A. Efimov, F. Frasconi, M. Gao, M. Goldberg, D. He, S. Kopp, G. C. Moneti, R. Mountain, Y. Mukhin, S. Schuh, T. Skwarnicki, S. Stone, G. Viehhauser, X. Xing, J. Bartelt, S. E. Csorna, V. Jain, S. Marka, A. Freyberger, R. Godang, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, B. Barish, M. Chadha, S. Chan, G. Eigen, J. S. Miller, C. O’Grady, M. Schmidtler, J. Urheim, A. J. Weinstein, F. Würthwein, D. M. Asner, D. W. Bliss, W. S. Brower, G. Masek, H. P. Paar, V. Sharma, J. Gronberg, R. Kutschke, D. J. Lange, S. Menary, R. J. Morrison, H. N. Nelson, T. K. Nelson, C. Qiao, J. D. Richman, D. Roberts, A. Ryd, M. S. Witherell, R. Balest, B. H. Behrens, K. Cho, W. T. Ford, H. Park, P. Rankin, J. Roy, J. G. Smith, J. P. Alexander, C. Bebek, B. E. Berger, K. Berkelman, K. Bloom, D. G. Cassel, H. A. Cho, D. M. Coffman, D. S. Crowcroft, M. Dickson, P. S. Drell, K. M. Ecklund, R. Ehrlich, R. Elia, A. D. Foland, P. Gaidarev, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, T. Lee, Y. Liu, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, C. R. Ng, E. Nordberg, M. Ogg, J. R. Patterson, D. Peterson, D. Riley, A. Soffer, C. Ward, M. Athanas, P. Avery, C. D. Jones, M. Lohner, C. Prescott, S. Yang, J. Yelton, J. Zheng, G. Brandenburg, R. A. Briere, Y. S. Gao, D. Y.-J. Kim, R. Wilson, H. Yamamoto, T. E. Browder, F. Li, Y. Li, J. L. Rodriguez, T. Bergfeld, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, M. Palmer, M. Selen, J. J. Thaler, K. W. Edwards, A. Bellerive, R. Janicek, D. B. MacFarlane, K. W. McLean, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, C. Darling, R. Davis, N. Hancock, S. Kotov, I. Kravchenko, N. Kwak, S. Anderson, Y. Kubota, M. Lattery, J. J. O’Neill, S. Patton, R. Poling, T. Riehle, V. Savinov, A. Smith, M. S. Alam, S. B. Athar, Z. Ling, A. H. Mahmood, H. Severini, S. Timm, F. Wappler, A. Anastassov, S. Blinov, J. E. Duboscq, K. D. Fisher, D. Fujino, R. Fulton, K. K. Gan, T. Hart, K. Honscheid, H. Kagan, R. Kass, J. Lee, M. B. Spencer, M. Sung, A. Undrus, R. Wanke, A. Wolf, M. M. Zoeller, B. Nemati, S. J. Richichi, W. R. Ross, P. Skubic, M. Wood, M. Bishai, J. Fast, E. Gerndt, J. W. Hinson, N. Menon, D. H. Miller, E. I. Shibata, I. P. J. Shipsey, M. Yurko, L. Gibbons, S. D. Johnson, Y. Kwon, S. Roberts, and E. H. Thorndike
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, Branching (polymer chemistry), 01 natural sciences, 7. Clean energy, Factorization, 0103 physical sciences, High Energy Physics::Experiment, Cornell Electron Storage Ring, Nuclear Experiment, 010306 general physics
Abstract: Using a data sample with integrated luminosity of about 3.9 fb^{-1} collected in e+ e- annihilation with the CLEO-II detector at the Cornell Electron Storage Ring, we have measured the branching ratios for the decay modes Ds -> (eta, eta') pi and Ds -> (eta, eta') rho relative to Ds -> phi pi. These decay modes are among the most common hadronic decays of the Ds's and can be related by factorization to the semileptonic decays Ds -> (eta,eta') l nu. The results obtained are compared with previous CLEO results and with the branching ratios measured for the related semileptonic decays. We also report results on the Cabibbo-suppressed decays of the D+ to the same final states.
Published: 1998
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539. Continuum chargedD*spin alignment ats=10.5GeV

Author: I. P.J. Shipsey, J. J. Thaler, G. C. Moneti, Richard L. Greene, E. H. Thorndike, D. Y.J. Kim, S. von Dombrowski, D. He, E. I. Shibata, John Yelton, C. Bebek, Y. Kwon, V. Savinov, D. Z. Besson, R. Godang, T. Lee, M. Schmidtler, J. J. O'Neill, D. Cinabro, P. Skubic, D. Coppage, G. Bonvicini, J. P. Alexander, S. Schrenk, Yanwen Liu, B. Nemati, D. L. Hartill, R. Poling, K. Honscheid, C. P. Jessop, B. Gittelman, D. Fujino, A. Soffer, J. Roy, P. I. Hopman, M. Sung, S. Anderson, E. Johnson, James G. Smith, M. Lohner, S. Prell, Kenneth Bloom, R. Mountain, Richard Wilson, A. Gritsan, D. S. Crowcroft, D. B. MacFarlane, C. R. Ng, C. Darling, A. J. Weinstein, J. L. Rodriguez, Ryszard Stroynowski, D. Roberts, Tomasz Skwarnicki, K. W. Edwards, K. K. Gan, W. T. Ford, R. D. Kass, J. Zheng, P. Pomianowski, Frank Würthwein, S. E. Csorna, G. Viehhauser, J. E. Duboscq, F. R. Wappler, D. G. Cassel, N. B. Mistry, P. S. Drell, Vivek Jain, H. N. Nelson, L. Zhou, Ilya Kravchenko, C. D. Jones, S. Patton, K. Kinoshita, H. Kagan, K. Lingel, R. Davis, S. J. Richichi, M. B. Spencer, G. Eigen, M. Yurko, R. Ammar, T. Bergfeld, J. W. Hinson, G. W. Brandenburg, J. Kandaswamy, Sheldon Stone, Xingjiang Zhou, Jing Wang, Alain Bellerive, J. Ernst, A. H. Mahmood, Sacha E Kopp, M. S. Alam, Jungil Lee, Paul Avery, I. C. Lai, S. Chan, I. Narsky, T. Hart, I. Karliner, M. Athanas, D. M. Asner, D. Peterson, D. H. Miller, L. K. Gibbons, M. Dickson, P. C. Kim, K. W. McLean, R. J. Morrison, Mats A Selen, C.Y. Prescott, B. H. Behrens, S. Kotov, T. Riehle, Philip Baringer, B. I. Eisenstein, P. M. Patel, R. Janicek, N. Menon, P. Gaidarev, Yurii Maravin, A. D. Foland, A. Anastassov, A. J. Sadoff, I. Korolkov, H. P. Paar, Xiangjun Xing, M. A. Marsh, W. R. Ross, Sz Márka, R. Baker, Jianqiao Ye, D. Ugolini, I. Volobouev, A. Ershov, G. Masek, D. Riley, N. Kwak, Juliet Ritchie Patterson, F. Azfar, Vivek Sharma, M. Bishai, S. W. Gray, A. Smith, S. Schuh, J. Staeck, J. Bartelt, J. S. Miller, B. E. Berger, Horst Severini, R. A. Briere, E. Nordberg, M. Goldberg, V. Shelkov, Y. S. Gao, J. Fast, Alice Bean, M. L. Perl, R. M. Hans, Marina Artuso, V. Boisvert, A. Undrus, Yang Li, Yuichi Kubota, G. J. Zhou, S. Glenn, M. Ogg, L. P. Perera, Karl Berkelman, A. Efimov, D. W. Bliss, C. Ward, J. Gronberg, S.C. Timm, M. Chadha, Dj Lange, M.A. Palmer, H. Marsiske, V. Fadeyev, B. Valant-Spaight, H. Yamamoto, T. K. Nelson, M. M. Zoeller, A. Wolf, B. K. Heltsley, S. B. Athar, J. Urheim, S. J. Lee, G. D. Gollin, D. L. Kreinick, T. E. Browder, S. Roberts, G. E. Gladding, K. M. Ecklund, A. L. Lyon, T. S. Hill, R. Ehrlich, T. E. Coan, and Z. Ling
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson production, Continuum (measurement), Meson, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, 01 natural sciences, Nuclear physics, Angular distribution, 0103 physical sciences, Mass spectrum, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: A measurement of the spin alignment of charged D^* mesons produced in continuum e^+ e^- \to c \bar{c} events at \sqrt{s}=10.5 GeV is presented. This study using 4.72 fb^{-1} of CLEO II data shows that there is little evidence of any D^* spin alignment.
Published: 1998
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540. Study of semileptonic decays of B mesons to charmed baryons

Author: B. Gittelman, P. Skubic, D. B. MacFarlane, M. Yurko, M. Chadha, S. W. Gray, P. Avery, N. Kwak, Y. Kubota, R. Mountain, I. Korolkov, T. E. Browder, R. Balest, R. Wanke, I. Volobouev, F. Wappler, D. H. Miller, J. J. O'Neill, F. Azfar, J. S. Miller, V. Fadeyev, J. R. Patterson, M. B. Spencer, Richard L. Greene, D. Coppage, K. Berkelman, J. Staeck, M. S. Alam, I. Narsky, N. B. Mistry, S. Schrenk, H. Severini, S. B. Athar, C. Darling, J. G. Smith, C. Bebek, A. Bean, B. Nemati, Harris Kagan, D. Y J Kim, C. O'Grady, T. K. Nelson, V. Jain, H. Park, Ryszard Stroynowski, C. Prescott, S. Glenn, R. Baker, G. Bonvicini, R. Wang, A. Wolf, R. M. Hans, C. D. Jones, P. I. Hopman, J. J. Thaler, K. W. Edwards, S. von Dombrowski, P. Pomianowski, Sheldon Stone, M. Athanas, R. Davis, J. W. Hinson, R. Godang, Y. Kwon, Ian Shipsey, D. He, V. Shelkov, A. Ershov, S. Kotov, M. Palmer, L. Gibbons, R. Ammar, S. Kopp, G. Masek, S. Anderson, M. Ogg, T. E. Coan, M. Lohner, R. Ehrlich, D. Ugolini, T. S. Hill, Z. Ling, D. G. Cassel, A. Ryd, S. Roberts, A. J. Sadoff, B. I. Eisenstein, A. D. Foland, G. Brandenburg, S. J. Lee, A. J. Weinstein, J. Gronberg, E. I. Shibata, M. Selen, D. L. Hartill, M. Artuso, M. Goldberg, J. E. Duboscq, A. Undrus, F. Wurthwein, R. Poling, R. Janicek, S. Chan, J. Roy, B. E. Berger, S. D. Johnson, G. D. Gollin, J. P. Alexander, T. Lee, Y. Li, K. Bloom, W. T. Ford, I. Kravchenko, A. Smith, H. Marsiske, S. Prell, V. Sharma, L. Zhou, D. J. Lange, D. Roberts, D. L. Kreinick, D. M. Asner, V. Boisvert, J. Zheng, D. S. Crowcroft, E. H. Thorndike, T. Bergfeld, C. R. Ng, E. Nordberg, S. Timm, G. Eigen, D. Peterson, C. P. Jessop, B. H. Behrens, D. Fujino, P. C. Kim, M. Schmidtler, G. J. Zhou, G. E. Gladding, A. Anastassov, L. P. Perera, Y. Liu, X. Xing, A. H. Mahmood, S. Marka, P. Baringer, S. Patton, H. P. Paar, D. Riley, I. C. Lai, J. Fast, H. Yamamoto, W. R. Ross, K. K. Gan, S. E. Csorna, A. Efimov, J. Yelton, A. Bellerive, R. Kass, N. Menon, J. Ernst, A. Soffer, J. Bartelt, E. Johnson, I. Karliner, S. J. Richichi, J. Kandaswamy, B. Valant-Spaight, C. Ward, Yu Gao, P. Gaidarev, X. Zhou, R. A. Briere, H. N. Nelson, P. M. Patel, K. Kinoshita, D. Besson, Y. Maravin, J. L. Rodriguez, V. Savinov, J. Lee, M. M. Zoeller, J. Ye, K. M. Ecklund, M. Sung, T. Riehle, K. W. McLean, G. C. Moneti, P. S. Drell, D. Cinabro, B. K. Heltsley, K. Honscheid, Daniel Bliss, T. Hart, M. Bishai, K. Lingel, R. Wilson, T. Skwarnicki, M. L. Perl, G. Viehhauser, J. Urheim, R. J. Morrison, M. A. Marsh, M. Dickson, and S. Schuh
Subjects: Physics, Semileptonic decay, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Hadron, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, 3. Good health, Charmed baryons, High Energy Physics - Experiment (hep-ex), Crystallography, Particle decay, 0103 physical sciences, B meson, 010306 general physics, Energy (signal processing)
Abstract: Using data collected by the CLEO II detector at the center-of-mass energy on or near the Upsilon(4S) resonance, we have determined the 90% confidence level upper limit B(Bbar --> Lambda_c^+ e- X)/B(Bbar --> Lambda_c^+ X, Lambdabar_c^- X) < 0.05 for electrons with momentum above 0.6 GeV/c. We have also derived the ratio B(B^- --> Lambda_c^+ pbar e- nubar_e)/B(Bbar --> Lambda_c^+ pbar X) < 0.04 at the 90% confidence level and measured the ratio B(Bbar --> Lambda_c^+ pbar X)/B(Bbar --> Lambda_c^+ X, Lambdabar_c^- X) = 0.57 +- 0.05 +- 0.05., 9 page postscript file, postscript file also available through http://w4.lns.cornell.edu/public/CLNS
Published: 1998

541. New Limits for Neutrinoless Tau Decays

Author: J. Gronberg, S.C. Timm, J. Zheng, M. Chadha, Dj Lange, A. H. Mahmood, P. C. Kim, J. Roy, G. E. Gladding, S. von Dombrowski, Ryszard Stroynowski, G. J. Zhou, Ian Shipsey, D. He, Vivek Sharma, J. Urheim, A. Smith, K. K. Gan, K. Honscheid, S. Patton, T. S. Hill, J. L. Rodriguez, Anders Ryd, R. Ammar, K. M. Ecklund, J. J. Thaler, R. Ehrlich, Frank Würthwein, H. Marsiske, G. Viehhauser, J. E. Duboscq, K. W. Edwards, John Yelton, Sz Márka, P. I. Hopman, N. B. Mistry, B. H. Behrens, M. Sung, H. P. Paar, T. Hart, L. K. Gibbons, A. Anastassov, I. Korolkov, G. C. Moneti, A. Soffer, R. M. Hans, D. Roberts, Richard Wilson, V. Fadeyev, S. Anderson, I. C. Lai, S. Chan, A. D. Foland, R. Baker, Xingjiang Zhou, D. L. Kreinick, M. Lohner, D. S. Crowcroft, J. S. Miller, T. E. Browder, Y. Kwon, V. Savinov, G. Masek, E. I. Shibata, A. Wolf, E. Nordberg, C. O'Grady, R. Davis, B. Valant-Spaight, S. Glenn, M. Ogg, J. Staeck, Y. S. Gao, J. Kandaswamy, P. Skubic, George D Gollin, C. Bebek, S. Roberts, D. Z. Besson, Juliet Ritchie Patterson, M. Dickson, T. Riehle, F. R. Wappler, M. A. Marsh, S. E. Csorna, A. Undrus, T. E. Coan, D. B. MacFarlane, Sacha E Kopp, Karl Berkelman, H. Yamamoto, A. J. Weinstein, M. S. Alam, Marina Artuso, R. Wanke, M. Athanas, A. Efimov, M. Yurko, Tomasz Skwarnicki, H. N. Nelson, S. B. Athar, D. Peterson, L. P. Perera, K. W. McLean, Philip Baringer, E. Johnson, R. Wang, Xiangjun Xing, S. J. Richichi, M. B. Spencer, Z. Ling, K. Kinoshita, I. Narsky, T. K. Nelson, W. R. Ross, R. J. Morrison, Mats A Selen, Jungil Lee, N. Menon, D. Ugolini, G. W. Brandenburg, B. K. Heltsley, A. J. Sadoff, Richard L. Greene, S. W. Gray, S. J. Lee, M.A. Palmer, W. T. Ford, M. M. Zoeller, E. H. Thorndike, F. Azfar, I. Volobouev, A. Ershov, R. D. Kass, R. Balest, D. W. Bliss, R. A. Briere, Horst Severini, P. Pomianowski, D. Coppage, D. Y.J. Kim, G. Bonvicini, J. P. Alexander, Alain Bellerive, L. Zhou, Ilya Kravchenko, C. D. Jones, J. W. Hinson, D. H. Miller, Sheldon Stone, D. M. Asner, Paul Avery, Y. Li, R. S. Galik, S. Schrenk, Yanwen Liu, J. G. Smith, C. P. Jessop, S. D. Johnson, Yurii Maravin, S. Prell, P. M. Patel, P. Gaidarev, N. Kwak, M. Bishai, D. Riley, D. Fujino, J. Bartelt, V. Shelkov, M. L. Perl, Yuichi Kubota, D. L. Hartill, R. Poling, C. R. Ng, C. Darling, Vivek Jain, B. E. Berger, M. Goldberg, Harris Kagan, C.Y. Prescott, Jianqiao Ye, D. G. Cassel, P. S. Drell, I. Karliner, B. I. Eisenstein, R. Godang, T. Lee, M. Schmidtler, K. Lingel, R. Mountain, J. Ernst, D. Cinabro, B. Nemati, B. Gittelman, T. Bergfeld, J. Fast, J. J. O'Neill, S. Schuh, Harold S. Park, Alice Bean, V. Boisvert, S. Kotov, R. Janicek, Kenneth Bloom, G. Eigen, and C. Ward
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Detector, High Energy Physics::Phenomenology, FOS: Physical sciences, 01 natural sciences, Charged particle, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, High Energy Physics::Experiment, Cornell Electron Storage Ring, 010306 general physics, Lepton
Abstract: Neutrinoless 3-prong tau lepton decays into a charged lepton and either two charged particles or one neutral meson have been searched for using 4.79 fb^{-1} of data collected with the CLEO II detector at CESR. This analysis represents an update of a previous study and the addition of six decay channels. In all channels the numbers of events found are compatible with background estimates and branching fraction upper limits are set for 28 different decay modes. These limits are either more stringent than those set previously or represent the first attempt to find these decays., Comment: 11 page postscript file, postscript file also available through http://w4.lns.cornell.edu/public/CLNS
Published: 1997
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542. Determination of the Michel Parameters and the tau Neutrino Helicity in tau Decay

Author: S. Schuh, D. G. Cassel, Harold S. Park, Alice Bean, R. Ammar, R. Kutschke, E. Johnson, T. E. Coan, I. C. Lai, Xingjiang Zhou, I. Karliner, H. Severini, S. Chan, H. A. Cho, B. I. Eisenstein, M. Dickson, B. C. Barish, C. O'Grady, D. L. Hartill, Alain Bellerive, Kenneth Bloom, C. Qiao, M. A. Marsh, D. He, G. Eigen, W. R. Ross, R. Wang, I. Volobouev, R. Poling, C. R. Ng, C. Darling, Richard L. Greene, E. H. Thorndike, J. J. Thaler, D. B. MacFarlane, D. Fujino, J. Zheng, A. J. Weinstein, A. Wolf, K. D. Fisher, J. Mevissen, Tomasz Skwarnicki, D. Coppage, G. Bonvicini, J. P. Alexander, P. Skubic, J. Kandaswamy, J. J. O'Neill, Michael S. Witherell, P. M. Patel, H. Yamamoto, P. C. Kim, J. S. Miller, Z. Ling, I. P.J. Shipsey, H. N. Nelson, M. Athanas, D. Cinabro, D. Peterson, M. Lohner, Vivek Sharma, A. Smith, R. S. Galik, B. Nemati, S. E. Csorna, D. Y.J. Kim, B. Gittelman, G. C. Moneti, Y. Kwon, F. Frasconi, Richard Wilson, B. H. Behrens, S. J. Richichi, J. Masui, Y. S. Gao, S. Kotov, N. Hancock, D. Z. Besson, R. Janicek, F. R. Wappler, Anders Ryd, Sacha E Kopp, M. S. Alam, R. Wanke, K. Kinoshita, E. I. Shibata, D. M. Coffman, R. Godang, T. Lee, M. Schmidtler, C.Y. Prescott, M.A. Palmer, G. W. Brandenburg, B. K. Heltsley, S. B. Athar, K. K. Gan, Jungil Lee, C. Bebek, V. Savinov, M. Yurko, J. Urheim, Vivek Jain, Sz Márka, A. H. Mahmood, R. M. Hans, N. Menon, S. J. Lee, R. Mountain, Philip Baringer, D. Riley, H. Marsiske, G. D. Gollin, D. L. Kreinick, P. S. Drell, R. Elia, S. Schrenk, Yanwen Liu, C. P. Jessop, M. Lattery, J. L. Rodriguez, Frank Würthwein, G. Viehhauser, K. Cho, M. Gao, H. P. Paar, Jianqiao Ye, S. D. Johnson, P. I. Hopman, Xiangjun Xing, M. Sung, K. Lingel, John Yelton, T. E. Browder, N. B. Mistry, D. M. Asner, J. Bartelt, S. Prell, K. W. McLean, D. Roberts, S. Glenn, M. Ogg, F. Li, G. Masek, J. Ernst, A. D. Foland, S. Roberts, R. Davis, V. Fadeyev, Yang Li, A. Soffer, Juliet Ritchie Patterson, C. Ward, T. S. Hill, S. Anderson, E. Nordberg, Jeffrey Richman, J. Gronberg, D. H. Miller, R. Ehrlich, B. Valant-Spaight, D. S. Crowcroft, M. L. Perl, W. S. Brower, S.C. Timm, James G. Smith, G. S. Ludwig, M. Chadha, P. Gaidarev, Yuichi Kubota, B. E. Berger, T. K. Nelson, L. P. Perera, P. Pomianowski, G. E. Gladding, E. Gerndt, R. A. Briere, K. W. Edwards, S. Blinov, M. Goldberg, Dj Lange, A. Undrus, G. J. Zhou, S. Patton, Sheldon Stone, Marina Artuso, Paul Avery, N. Kwak, Ilya Kravchenko, H. Kagan, M. M. Zoeller, M. Bishai, C. D. Jones, Michael Wood, J. W. Hinson, K. M. Ecklund, D. W. Bliss, T. Hart, J. Roy, Karl Berkelman, A. Efimov, S. Menary, Ryszard Stroynowski, R. J. Morrison, Mats A Selen, T. Bergfeld, A. J. Sadoff, P. Rankin, L. Gibbons, T. Riehle, W. T. Ford, R. D. Kass, R. Balest, V. Shelkov, D. Ugolini, M. B. Spencer, Yurii Maravin, S. W. Gray, I. Narsky, J. Fast, A. Anastassov, I. Korolkov, J. Staeck, K. Honscheid, and J. E. Duboscq
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, FOS: Physical sciences, 01 natural sciences, Helicity, High Energy Physics - Experiment, 3. Good health, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Michel parameters, Cornell Electron Storage Ring, Neutrino, 010306 general physics
Abstract: Using the CLEO II detector at the $e^+e^-$ storage ring CESR, we have determined the Michel parameters $\rho$, $\xi$, and $\delta$ in $\tau^\mp \to l^\mp\nu\bar{\nu}$ decay as well as the tau neutrino helicity parameter $h_{\nu_\tau}$ in $\tau^\mp \to \pi^\mp\pi^0\nu$ decay. From a data sample of $3.02\times 10^6$ tau pairs produced at $\sqrt{s}=10.6 GeV$, using events of the topology $e^+e^- \to \tau^+\tau^- \to (l^\pm\nu\bar{\nu}) (\pi^\mp\pi^0\nu)$ and $e^+e^- \to \tau^+\tau^- \to (\pi^\pm\pi^0\bar{\nu}) (\pi^\mp\pi^0\nu)$, and the determined sign of $h_{\nu_\tau}$, the combined result of the three samples is: $\rho = 0.747\pm 0.010\pm 0.006$, $\xi = 1.007\pm 0.040\pm 0.015$, $\xi\delta = 0.745\pm 0.026\pm 0.009$, and $h_{\nu_\tau} = -0.995\pm 0.010\pm 0.003$. The results are in agreement with the Standard Model V-A interaction., Comment: 18 page postscript file, postscript file also available through http://w4.lns.cornell.edu/public/CLNS
Published: 1997
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543. Experimental tests of lepton universality in $\tau$ decay

Author: T. K. Nelson, Richard L. Greene, E. H. Thorndike, M. M. Zoeller, D. Coppage, G. Bonvicini, J. P. Alexander, Karl Berkelman, A. Efimov, D. H. Miller, L. Gibbons, E. Gerndt, R. S. Galik, H. Yamamoto, K. W. Edwards, S. Blinov, R. Wang, P. Gaidarev, W. T. Ford, A. Anastassov, D. Cinabro, M.A. Palmer, B. Nemati, R. D. Kass, R. Balest, E. I. Shibata, A. Wolf, I. Korolkov, Z. Ling, S. Roberts, H. Marsiske, B. E. Berger, B. Gittelman, A. H. Mahmood, V. Fadeyev, E. Johnson, I. P.J. Shipsey, N. Hancock, Jungil Lee, H. A. Cho, T. Bergfeld, Yurii Maravin, F. Frasconi, M. Dickson, N. Menon, D. Gibaut, R. Davis, Anders Ryd, Sz Márka, R. Poling, D. He, K. W. McLean, C. Qiao, S. B. Athar, J. Urheim, J. Staeck, D. G. Cassel, J. D. Richman, D. Y.J. Kim, C. R. Ng, C. Darling, Michael S. Witherell, P. I. Hopman, M. Sung, D. Roberts, C.Y. Prescott, Shengfeng Yang, A. Freyberger, John Yelton, H. Kagan, M. B. Spencer, D. L. Kreinick, Jianqiao Ye, P. S. Drell, J. J. Thaler, S. E. Csorna, B. C. Barish, Marina Artuso, W. R. Ross, B. H. Behrens, C. Ward, R. Elia, P. Skubic, K. Lingel, J. Masui, D. Fujino, J. Gronberg, I. Karliner, Y. Kwon, J. Ernst, S.C. Timm, K. Kinoshita, I. Volobouev, Sheldon Stone, M. Chadha, Paul Avery, G. W. Brandenburg, D. Z. Besson, K. D. Fisher, Yurii V. Mukhin, Vivek Jain, B. I. Eisenstein, I. Narsky, M. Lohner, Dj Lange, J. Roy, R. Ammar, R. Godang, T. Lee, M. Schmidtler, Ryszard Stroynowski, C. Bebek, Sacha E Kopp, J. L. Rodriguez, M. S. Alam, R. Wanke, G. Masek, R. J. Morrison, Juliet Ritchie Patterson, Mats A Selen, Frank Würthwein, G. Viehhauser, K. Cho, N. B. Mistry, I. C. Lai, A. J. Sadoff, H. Severini, S. Chan, P. Rankin, R. Mountain, J. Mevissen, J. Kandaswamy, J. J. O'Neill, D. L. Hartill, A. Soffer, X. J. Zhou, M. Athanas, M. Lattery, D. Peterson, T. E. Browder, R. A. Briere, S. Anderson, D. S. Crowcroft, J. Fast, C. O'Grady, N. Kwak, K. Honscheid, M. Bishai, M. A. Marsh, S. Menary, Alain Bellerive, J. E. Duboscq, F. R. Wappler, V. Shelkov, S. Kotov, R. Janicek, Y. Li, P. M. Patel, Daniel W. Bliss, Kenneth Bloom, D. M. Coffman, N. Katayama, B. K. Heltsley, Richard Wilson, A. D. Foland, V. Savinov, M. Yurko, Philip Baringer, G. D. Gollin, Xiangjun Xing, G. Eigen, R. Ehrlich, G. E. Gladding, S. Patton, D. Riley, D. M. Asner, S. Schuh, K. M. Ecklund, R. M. Hans, J. Bartelt, M. Gao, M. Ogg, F. Li, M. L. Perl, Yuichi Kubota, L. P. Perera, Harold S. Park, J. S. Miller, H. P. Paar, Alice Bean, R. Fulton, Y. S. Gao, J. Zheng, K. K. Gan, R. Kutschke, P. C. Kim, E. Nordberg, M. Goldberg, G. S. Ludwig, G. C. Moneti, M. Sivertz, Vivek Sharma, A. Undrus, A. Smith, S.F. Schaffner, T. E. Coan, D. B. MacFarlane, A. J. Weinstein, Tomasz Skwarnicki, H. N. Nelson, S. J. Richichi, W. S. Brower, P. Pomianowski, Ilya Kravchenko, C. D. Jones, Michael Wood, J. W. Hinson, T. Hart, T. Riehle, D. Ugolini, S. W. Gray, S. Schrenk, Yanwen Liu, J. G. Smith, C. P. Jessop, and S. D. Johnson
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Particle Physics - Experiment, Lepton, Universality (dynamical systems)
Abstract: The branching fractions for τ→eνντ, μνντ, and hντ are measured using data collected with the CLEO detector at the CESR e+e- collider: Be=0.1776±0.0006±0.0017, Bμ=0.1737±0.0008±0.0018, and Bh=0.1152±0.0005±0.0012, where the first error is statistical, the second systematic, and h refers to either a charged π or K. Also measured is the τ mass, mτ=(1778.2±1.4) MeV. Lepton universality is affirmed by the relative branching fractions (Bμ/Be=0.9777±0.0063±0.0087, Bh/Be=0.6484±0.0041±0.0060) and the charged-current gauge coupling-constant ratios (gμ/ge=1.0026±0.0055, gτ/gμ=0.9990±0.0098). The τ mass result may be recast as a τ neutrino mass limit, mντ
Published: 1996

544. Tau Decays into Three Charged Leptons and Two Neutrinos

Author: A. H. Mahmood, R. Davis, D. Riley, K. W. McLean, J. Roy, Ryszard Stroynowski, P. Rankin, D. M. Asner, Y. Kwon, D. Fujino, J. J. O'Neill, G. Wei, D. Z. Besson, H. A. Cho, J. Bartelt, D. Cinabro, Yurii V. Mukhin, T. Lee, M. Schmidtler, D. L. Hartill, J. J. Thaler, R. Poling, C. R. Ng, J. K. Nelson, G. E. Gladding, S. Patton, M. L. Perl, Michael S. Witherell, B. Nemati, H. Yamamoto, Z. Ling, M. Ogg, Ian Shipsey, D. He, Yuichi Kubota, R. Mountain, J. Urheim, J. S. Miller, I. Volobouev, D. W. Bliss, P. Gaidarev, X. Fu, B. Gittelman, S. F. Schaffner, Sacha E Kopp, S. Nakanishi, M. S. Alam, E. H. Thorndike, R. Wanke, I. J. Kim, F. R. Wappler, T. Skwarnicki, G. Masek, Alain Bellerive, S. Kotov, Juliet Ritchie Patterson, J. Mevissen, D. Coppage, R. Janicek, J. Kandaswamy, P. M. Patel, P. C. Kim, M. M. Zoeller, M. Lattery, H. Tajima, A. Soffer, K. Honscheid, D. Peterson, V. Savinov, D. G. Cassel, C. M. Korte, R. S. Galik, K. K. Gan, J. E. Duboscq, K. W. Edwards, Richard Wilson, M. Lohner, H. Marsiske, M. Sung, D. Roberts, P. Skubic, D. L. Kreinick, G. Brandenburg, Philip Baringer, T. Miao, T. E. Browder, M. Dickson, I. Korolkov, N. Copty, J. L. Rodriguez, D. S. Crowcroft, B. I. Eisenstein, M. Gao, Frank Würthwein, S. E. Csorna, H. P. Paar, C. Qiao, K. Cho, R. Fulton, Xiangjun Xing, S. Roberts, N. B. Mistry, P. S. Drell, R. Elia, K. Kinoshita, K. Lingel, S. Playfer, M. Saulnier, J. Fast, J. Ernst, Harold S. Park, V. Fadeyev, F. Li, R. Ehrlich, E. Nordberg, Jeffrey Richman, Alice Bean, Christopher G. White, R. J. Morrison, Mats A Selen, G. S. Ludwig, S. L. Jones, A. J. Sadoff, N. Kwak, D. M. Coffman, D. B. MacFarlane, J. Dominick, A. J. Weinstein, R. Kutschke, T. K. Nelson, B. K. Heltsley, M.A. Palmer, M. Bishai, H. N. Nelson, G. D. Gollin, S. J. Richichi, E. Gerndt, Kenneth Bloom, S. Menary, R. Ammar, Dave Britton, J. P. Alexander, N. Katayama, V. Shelkov, G. Eigen, T. E. Coan, H. Severini, S. Chan, A. Wolf, C. O'Grady, S. Sanghera, R. Wang, T. Bergfeld, N. Hancock, Harris Kagan, C.Y. Prescott, W. R. Ross, J. Masui, B. Spaan, John Yelton, M. Lambrecht, Vivek Jain, David Miller, Pu Wang, Jungil Lee, B. C. Barish, Sheldon Stone, T. Riehle, Paul Avery, C. D. Jones, G. C. Moneti, B. E. Berger, C. R. Sun, W. T. Ford, R. D. Kass, R. Balest, E. I. Shibata, M. Goldberg, S. W. Gray, T. Liu, C. Bebek, W. S. Brower, A. P. Freyberger, Shengfeng Yang, R. A. Briere, P. Pomianowski, Ilya Kravchenko, Michael Wood, J. W. Hinson, M. Modesitt, S. Schrenk, Yanwen Liu, J. G. Smith, C. P. Jessop, S. D. Johnson, C. Ward, J. Gronberg, S.C. Timm, N. Horwitz, M. Chadha, D. J. Dumas, D. Gibaut, Karl Berkelman, A. Efimov, L. Gibbons, Anders Ryd, M. Athanas, Sz Márka, and Marina Artuso
Subjects: Physics, Nuclear physics, Particle physics, Positron, Branching fraction, Electron–positron annihilation, General Physics and Astronomy, Electron, Cornell Electron Storage Ring, Neutrino, Particle Physics - Experiment, Lepton, Standard Model
Abstract: We search for the radiative leptonic tau decays τ→ee^+e^-ν_τν_e and τ→μe^+e^-ν_τν_μ using 3.60fb^(-1) of data collected by the CLEO-II experiment at the Cornell Electron Storage Ring. We present a first observation of the τ→ee^+e^-ν_τν_e process. For this channel we measure the branching fraction B(τ→ee^+e^-ν_τν_e) = (2.7_(-1.1-0.4-0.3)^(+1.5+0.4+0.1))×10^(-5). An upper limit is established for the second channel: B(τ→μe^+e^-ν_τν_μ)
Published: 1996

545. 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

546. Semileptonic Branching Fractions of Charged and Neutral B Mesons

Author: H. P. Paar, P. Zadorozhny, F. Muheim, R. Fulton, J. Gronberg, N. Horwitz, Jungil Lee, W. R. Ross, A. H. Mahmood, M. Chadha, M. Sung, Y. Kwon, Kenneth Bloom, B. Ong, S. Playfer, I. Volobouev, Shawn W. Henderson, N. Katayama, E. Nordberg, Jeffrey Richman, D. Z. Besson, J. Masui, B. Spaan, Vivek Jain, G. S. Ludwig, C. D. Jones, T. Liu, C. Bebek, G. Eigen, M. Goldberg, Richard Wilson, M.A. Palmer, A. P. Freyberger, D. H. Miller, F. Butler, Maurice Garcia-Sciveres, Anders Ryd, M. Athanas, J. Mevissen, Ha Lam, D. B. MacFarlane, J. J. Thaler, P. Gaidarev, S. Nakanishi, A. J. Weinstein, R. Malchow, J. Kandaswamy, K. K. Gan, Y. Skovpen, Ian Shipsey, D. He, J. Fast, G. Vasseur, X. Fu, D. Gibaut, R. Davis, B. Geiser, T. E. Browder, E. H. Thorndike, H. N. Nelson, M. Lambrecht, D. G. Cassel, Christopher G. White, T. K. Nelson, George D Gollin, M. Modesitt, D. Fujino, G. C. Moneti, M. Momayezi, M. Sapper, J. J. O'Neill, Alain Bellerive, D. Peterson, S. E. Csorna, G. Zhu, M. M. Zoeller, D. Coppage, M. S. Alam, J. Urheim, R. Ammar, Barry C. Barish, K. Lingel, S. Kotov, M. Lohner, P. M. Patel, P. Skubic, J. P. Alexander, E. I. Shibata, N. Copty, D. J. Dumas, Ron Poling, Yurii V. Mukhin, K. Kinoshita, H. Yamamoto, Harris Kagan, Karl Berkelman, H. Severini, S. Chan, R. Kennett, J. Ernst, D. S. Crowcroft, D. Riley, B. Nemati, L. Gibbons, C. O'Grady, Marina Artuso, E. Grendt, B. I. Eisenstein, M. Ogg, E. R.F. Hyatt, B. Gittelman, J. Bartelt, M. Lattery, I. J. Kim, F. R. Wappler, J. G. Smith, J. S. Miller, T. Skwarnicki, J. K. Nelson, K. Cho, Yuichi Kubota, N. B. Mistry, G. Crawford, C. R. Sun, Z. Ling, N. Kwak, P. C. Kim, M. Bishai, R. Mountain, W. T. Ford, S. Sanghera, R. D. Kass, R. Balest, P. S. Drell, C. Qiao, T. Miao, S. Menary, Alice Bean, Jorge Luis Rodriguez, K. Honscheid, R. J. Morrison, Mats A Selen, M. Saulnier, N. Hancock, Dave Britton, R. L. McIlwain, R. Kutschke, A. J. Sadoff, Pu Wang, J. R. Patterson, V. Shelkov, S. Schrenk, K. W. Edwards, Sheldon Stone, Paul Avery, D. Yelton, H. Tajima, Z. Egyed, D. Sperka, M. L. Kelly, Ruifang Wang, R. Ehrlich, S. W. Gray, T. Bergfeld, S. L. Jones, W. S. Brower, J. Dominick, P. Pomianowski, V. Savinov, Ilya Kravchenko, S. Salman, Michael Wood, Yoram Rozen, F. Würthwein, Philip Baringer, Xiangjun Xing, C. M. Daubenmier, Ryszard Stroynowski, P. Rankin, Chunjie Wang, Shengfeng Yang, D. F. Cowen, D. Cinabro, S. Patton, Daniel Johnson, D. M. Coffman, B. K. Heltsley, D. L. Kreinick, S. Roberts, M. Battle, G. Masek, D. Payne, H. A. Cho, D. L. Hartill, C. R. Ng, Michael S. Witherell, G. Wei, and M. Gao
Subjects: Semileptonic decay, Physics, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, FOS: Physical sciences, Quarkonium, High Energy Physics - Experiment, Nuclear physics, Particle decay, High Energy Physics - Experiment (hep-ex), B meson
Abstract: An examination of leptons in ${\Upsilon (4S)}$ events tagged by reconstructed $B$ decays yields semileptonic branching fractions of $b_-=(10.1 \pm 1.8\pm 1.4)\%$ for charged and $b_0=(10.9 \pm 0.7\pm 1.1)\%$ for neutral $B$ mesons. This is the first measurement for charged $B$. Assuming equality of the charged and neutral semileptonic widths, the ratio $b_-/b_0=0.93 \pm 0.18 \pm 0.12$ is equivalent to the ratio of lifetimes. A postscript version is available through World-Wide-Web in http://w4.lns.cornell.edu/public/CLNS/1994, Comment: 9 pages (in REVTEX format) Preprint CLNS94-1286, CLEO 94-16
Published: 1994

547. Search for B0 decays to two charged leptons

Author: J. Mevissen, J. Kandaswamy, B. Geiser, J. J. Thaler, H. P. Paar, R. Fulton, C. D. Jones, M. S. Alam, B. Nemati, M. Lohner, F. Morrow, M. Sapper, G. C. Moneti, Sheldon Stone, Paul Avery, J. Ernst, D. Peterson, M. Procario, E. I. Shibata, B. Ong, Y. Kwon, Ian Shipsey, D. He, R. Kennett, H. Tajima, J. Fast, D. Z. Besson, E. R.F. Hyatt, M. Lattery, D. Payne, H. A. Cho, S. Salman, Michael Wood, D. Perticone, R. Davis, R. Ammar, B. Gittelman, Jungil Lee, E. Nordberg, Jeffrey Richman, Christopher G. White, V. Savinov, M. Goldberg, Anders Ryd, M. Athanas, M. Daoudi, D. L. Kreinick, N. Kwak, George D Gollin, T. E. Browder, H. Severini, S. Chan, K. K. Gan, Y. Skovpen, I. J. Kim, D. Fujino, J. J. O'Neill, D. L. Hartill, D. F. Cowen, K. Cho, G. S. Ludwig, K. Lingel, H. Yamamoto, C. O'Grady, N. Copty, N. B. Mistry, C. R. Ng, S. Menary, Dave Britton, K. W. Edwards, S. Roberts, Yoram Rozen, Z. Egyed, F. Würthwein, F. Butler, R. L. McIlwain, M. Battle, Yurii V. Mukhin, V. Shelkov, S. Schrenk, Maurice Garcia-Sciveres, Michael S. Witherell, D. Sperka, M. L. Kelly, T. Liu, P. Zadorozhny, F. Muheim, Ruifang Wang, S. W. Gray, I. Volobouev, T. Bergfeld, R. Malchow, C. Bebek, C. M. Daubenmier, P. Skubic, John Yelton, P. S. Drell, M. Lambrecht, M. Modesitt, D. G. Cassel, G. Masek, Philip Baringer, Juliet Ritchie Patterson, J. Masui, D. Cinabro, D. B. MacFarlane, A. P. Freyberger, D. N. Brown, George R. Kalbfleisch, Jorge Luis Rodriguez, M. Saulnier, S. Playfer, M.A. Palmer, Pu Wang, S. Ball, C. R. Sun, Ryszard Stroynowski, J. G. Smith, Karl Berkelman, W. T. Ford, A. J. Weinstein, Ron Poling, Daniel Schmidt, S. Patton, R. D. Kass, R. Balest, P. L. Wang, W. R. Ross, K. Honscheid, H. N. Nelson, J. Snow, Marina Artuso, P. Rankin, J. S. Miller, Vivek Jain, B. I. Eisenstein, J. Gronberg, M. Thulasidas, D. Acosta, J. K. Nelson, S. Yang, N. Horwitz, M. Chadha, R. Mountain, Chunjie Wang, Daniel Johnson, Ha Lam, G. Wei, R. Ehrlich, G. Crawford, S. L. Jones, G. Vasseur, M. M. Zoeller, H. Kagan, J. Dominick, B. C. Barish, R. J. Morrison, Mats A Selen, D. M. Coffman, B. K. Heltsley, A. J. Sadoff, T. Miao, Kenneth Bloom, N. Katayama, D. S. Akerib, G. Eigen, Alice Bean, R. Kutschke, S. Sanghera, N. Hancock, S. Nakanishi, E. H. Thorndike, D. Coppage, J. P. Alexander, M. Ogg, T. K. Nelson, J. Urheim, T. Skwarnicki, P. C. Kim, S. Henderson, G. Zhu, Richard Wilson, D. Riley, J. Bartelt, Yuichi Kubota, P. M. Patel, M. Sung, D. H. Miller, X. Fu, R. Stephens, S. E. Csorna, and K. Kinoshita
Subjects: Combinatorics, Physics, Particle physics, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, MathematicsofComputing_DISCRETEMATHEMATICS
Abstract: We have searched for [ital B][sup 0] decays to two charged leptons and set 90% confidence level upper limits on the branching fractions: [ital B]([ital B][sup 0][r arrow][ital e][sup +][ital e][sup [minus]])[lt]5.9[times]10[sup [minus]6], [ital B]([ital B][sup 0][r arrow][mu][sup +][mu][sup [minus]])[lt]5.9[times]10[sup [minus]6], [ital B]([ital B][sup 0][r arrow][ital e][sup [plus minus]][mu][sup [minus plus]]) [lt]5.9[times]10[sup [minus]6], [ital B]([ital B][sup 0][r arrow][ital e][sup [plus minus]][tau][sup [minus plus]])[lt]5.3[times]10[sup [minus]4], and [ital B]([ital B][sup 0][r arrow][mu][sup [plus minus]][tau][sup [minus plus]])[lt]8.3[times]10[sup [minus]4].
Published: 1994

548. 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

549. Luminosity measurement with the CLEO II detector

Author: K. Lingel, M. Sivertz, J. Urheim, J. Mevissen, J. Kandaswamy, B. Ong, N. Copty, Karl Berkelman, R. Ammar, H. Severini, S. Chan, C. O'Grady, L. Gibbons, Ron Poling, Ian Shipsey, D. He, Alice Bean, K. Cho, M. M. Zoeller, D. Fujino, D. Peterson, S. Nakanishi, E. H. Thorndike, D. M. Coffman, J. S. Miller, T. E. Browder, C. R. Sun, W. T. Ford, T. Miao, J. Fast, R. Kutschke, J. J. O'Neill, M. Procario, J. J. Thaler, R. D. Kass, R. Balest, T. Liu, P. Gaiderev, M. Thulasidas, Christopher G. White, C. Bebek, J. Gronberg, D. Coppage, J. P. Alexander, Brian Heltsley, Yurii V. Mukhin, N. Horwitz, M. Chadha, Shengfeng Yang, A. P. Freyberger, K. Honscheid, H. P. Paar, G. Zhu, D. Perticone, R. Fulton, M. Momayezi, George R. Kalbfleisch, K. W. Edwards, Z. Egyed, V. Savinov, Ilya Kravchenko, S. Salman, D. F. Cowen, T. K. Nelson, D. Cinabro, Yoram Rozen, S. Kotov, M. Sapper, P. Skubic, Michael Wood, Y. Kwon, G. Crawford, F. Würthwein, M. Ogg, D. Sperka, X. Xing, D. Z. Besson, T. Skwarnicki, S. Patton, Ruifang Wang, P. C. Kim, Philip Baringer, R. S. Galik, T. Bergfeld, S. Ball, M. Daoudi, S. Henderson, K. K. Gan, H. Yamamoto, Alain Bellerive, Kenneth Bloom, Anders Ryd, M. Athanas, Marina Artuso, S. Sanghera, D. Acosta, R. Davis, Daniel Johnson, Y. Skovpen, N. B. Mistry, Harris Kagan, R. Ehrlich, E. Nordberg, Jeffrey Richman, N. Katayama, C. M. Daubenmier, Ryszard Stroynowski, N. Hancock, George D Gollin, D. L. Kreinick, M. L. Kelly, S. W. Gray, G. Eigen, S. L. Jones, Sheldon Stone, G. S. Ludwig, Paul Avery, P. Rankin, W. R. Ross, M. Modesitt, M.A. Palmer, H. Tajima, C. Qiao, P. M. Patel, J. Dominick, S. Roberts, Chunjie Wang, M. Battle, D. B. MacFarlane, A. J. Weinstein, I. Volobouev, H. N. Nelson, J. G. Smith, R. Stephens, S. E. Csorna, Richard Wilson, K. Kinoshita, D. Riley, J. Bartelt, M. Sung, D. H. Miller, X. Fu, Yuichi Kubota, Ha Lam, G. Vasseur, C. D. Jones, M. Goldberg, J. Masui, Vivek Jain, G. Wei, D. Payne, H. A. Cho, D. L. Hartill, C. R. Ng, Michael S. Witherell, G. Masek, Juliet Ritchie Patterson, N. Kwak, S. Menary, Dave Britton, R. L. McIlwain, V. Shelkov, S. Schrenk, M. S. Alam, J. Ernst, E. R.F. Hyatt, M. Lattery, Pu Wang, Jungil Lee, P. Zadorozhny, F. Muheim, G. C. Moneti, Barry C. Barish, E. I. Shibata, S. Playfer, Maurice Garcia-Sciveres, R. Kennett, J. K. Nelson, R. Mountain, B. Gittelman, I. J. Kim, D. G. Cassel, B. Geiser, B. I. Eisenstein, M. Lohner, P. S. Drell, Jorge Luis Rodriguez, M. Saulnier, R. J. Morrison, Mats A Selen, A. J. Sadoff, F. Butler, R. Malchow, John Yelton, M. Lambrecht, and B. Nemati
Subjects: Nuclear physics, Systematic error, Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Electron–positron annihilation, Detector, Instrumentation, Accelerators and Storage Rings, Storage ring
Abstract: A measurement of absolute integrated luminosity is presented using the CLEO II detector operating at the CESR e+e− storage ring. Independent analyses of three different final states (e+e−, γγ, and μ+μ−) at √s ⋍ 10 GeV normalize to the expected theoretical cross sections and correct for detection efficiencies. The resulting luminosities are measured with systematic errors of ±1.8%, ±1.6%, and ±2.2%, respectively, and are consistent with one another. The combined luminosity has a systematic error of ±1.0%.
Published: 1994

550. Production and Decay of D_1(2420)^0 and D_2^*(2460)^0

Author: J. Gronberg, N. Horwitz, M. Chadha, S. Sanghera, H. Yamamoto, M. Modesitt, I. P.J. Shipsey, M. M. Zoeller, D. S. Crowcroft, N. Hancock, H. Kagan, T. Skwarnicki, J. Urheim, K. Honscheid, G. Crawford, R. J. Morrison, Mats A Selen, A. J. Sadoff, Jon J Thaler, G. Wei, P. C. Kim, S. Henderson, Jungil Lee, D. G. Cassel, F. Butler, T. Miao, J. G. Smith, R. Malchow, G. Masek, John Yelton, M. Lambrecht, D. B. MacFarlane, A. J. Weinstein, Karl Berkelman, D. Perticone, H. Tajima, Juliet Ritchie Patterson, M. Momayezi, K. W. Edwards, Alice Bean, H. N. Nelson, L. Gibbons, Z. Egyed, V. Savinov, Shengfeng Yang, B. Geiser, M. Sapper, D. Fujino, J. J. O'Neill, J. Masui, Yoram Rozen, F. Würthwein, M. Sung, D. L. Kreinick, M. S. Alam, B. Spaan, Anders Ryd, M. Athanas, D. Sperka, D. F. Cowen, T. K. Nelson, Ruifang Wang, B. Gittelma, J. Ernst, T. Bergfeld, R. Kutschke, Y. Kwon, D. Z. Besson, B. I. Eisenstein, R. Stephens, S. E. Csorna, Alain Bellerive, R. Ammar, Yurii V. Mukhin, M. Daoudi, K. Kinoshita, P. M. Patel, G. Zhu, B. Nemati, E. R.F. Hyatt, M. Lattery, Marina Artuso, R. Davis, H. Severini, S. Chan, George D Gollin, K. Lingel, Philip Baringer, S. Ball, Xiangjun Xing, M.A. Palmer, Vivek Jain, K. K. Gan, Y. Skovpen, C. O'Grady, T. E. Browder, N. Kwak, J. K. Nelson, D. Riley, M. Lohner, S. Roberts, S. Kotov, D. H. Miller, P. Gaidarev, X. Fu, M. Battle, J. Bartelt, N. Copty, R. Mountain, S. Menary, C. D. Jones, Dave Britton, R. L. McIlwain, M. L. Kelly, R. Ehrlich, S. W. Gray, B. Ong, H. P. Paar, R. Fulton, Maurice Garcia-Sciveres, V. Shelkov, S. Schrenk, Yuichi Kubota, M. Goldberg, D. M. Coffman, P. Zadorozhny, F. Muheim, S. L. Jones, Richard Wilson, B. K. Heltsley, Kenneth Bloom, P. S. Drell, Pu Wang, J. Dominick, M. Procario, N. Katayama, G. C. Moneti, Ha Lam, S. Playfer, J. Fast, G. Eigen, D. Cinabro, J. S. Miller, Jorge Luis Rodriguez, E. I. Shibata, S. Patton, M. Saulnier, C. Qiao, G. Vasseur, Christopher G. White, M. Thulasidas, E. Nordberg, Jeffrey Richman, D. Acosta, B. C. Barish, Daniel Johnson, Ilya Kravchenko, S. Salman, G. S. Ludwig, Michael Wood, D. He, S. Nakanishi, E. H. Thorndike, R. Kennett, J. Mevissen, J. Kandaswamy, D. Coppage, J. P. Alexander, I. J. Kim, D. Peterson, P. Skubic, T. Liu, M. Ogg, C. Bebek, A. P. Freyberger, George R. Kalbfleisch, K. Cho, N. B. Mistry, W. R. Ross, I. Volobouev, D. Payne, H. A. Cho, D. L. Hartill, R. Poling, C. R. Ng, Michael S. Witherell, C. R. Sun, W. T. Ford, R. D. Kass, R. Balest, Sheldon Stone, Paul Avery, C. M. Daubenmier, Ryszard Stroynowski, P. Rankin, and Chunjie Wang
Subjects: Physics, Nuclear and High Energy Physics, Meson, Branching fraction, Electron–positron annihilation, Partial wave analysis, FOS: Physical sciences, Elementary particle, Helicity, lcsh:QC1-999, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Phenomenology, Particle decay, High Energy Physics - Experiment (hep-ex), Amplitude, High Energy Physics - Phenomenology (hep-ph), Atomic physics, lcsh:Physics
Abstract: We have investigated $D^{+}\pi^{-}$ and $D^{*+}\pi^{-}$ final states and observed the two established $L=1$ charmed mesons, the $D_1(2420)^0$ with mass $2421^{+1+2}_{-2-2}$ MeV/c$^{2}$ and width $20^{+6+3}_{-5-3}$ MeV/c$^{2}$ and the $D_2^*(2460)^0$ with mass $2465 \pm 3 \pm 3$ MeV/c$^{2}$ and width $28^{+8+6}_{-7-6}$ MeV/c$^{2}$. Properties of these final states, including their decay angular distributions and spin-parity assignments, have been studied. We identify these two mesons as the $j_{light}=3/2$ doublet predicted by HQET. We also obtain constraints on {\footnotesize $\Gamma_S/(\Gamma_S + \Gamma_D)$} as a function of the cosine of the relative phase of the two amplitudes in the $D_1(2420)^0$ decay., Comment: 15 pages in REVTEX format. hardcopies with figures can be obtained by sending mail to: preprints@lns62.lns.cornell.edu
Published: 1994
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