Measurement of charmless semileptonic decays of [ital B] mesons
Using the CLEO II detector and a sample of 955 000 [Upsilon](4S) decays we have confirmed charmless semileptonic decays of [ital B] mesons. In the momentum interval 2.3--2.6 GeV/[ital c] we observe an excess of 107[plus minus]15[plus minus]11 leptons, which we attribute to [ital b][r arrow][ital ul]...
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creator | Bartelt, J. Csorna, S.E. Egyed, Z. Jain, V. Akerib, D.S. Barish, B. Chadha, M. Chan, S. Cowen, D.F. Eigen, G. Miller, J.S. O'Grady, C. Urheim, J. Weinstein, A.J. Acosta, D. Athanas, M. Masek, G. Paar, H. Sivertz, M. Bean, A. Gronberg, J. Kutschke, R. Menary, S. Morrison, R.J. Nakanishi, S. Nelson, H.N. Nelson, T.K. Richman, J.D. Ryd, A. Tajima, H. Schmidt, D. Sperka, D. Witherell, M.S. Procario, M. Yang, S. Cho, K. Daoudi, M. Ford, W.T. Johnson, D.R. Lingel, K. Lohner, M. Rankin, P. Smith, J.G. Alexander, J.P. Bebek, C. Berkelman, K. Besson, D. Browder, T.E. Cassel, D.G. Cho, H.A. Coffman, D.M. Drell, P.S. Ehrlich, R. Garcia-Sciveres, M. Geiser, B. Gittelman, B. Gray, S.W. Hartill, D.L. Heltsley, B.K. Jones, C.D. Jones, S.L. Kandaswamy, J. Katayama, N. Kim, P.C. Kreinick, D.L. Ludwig, G.S. Masui, J. Mevissen, J. Mistry, N.B. Ng, C.R. Nordberg, E. Ogg, M. Patterson, J.R. Peterson, D. Riley, D. Salman, S. Sapper |
description | Using the CLEO II detector and a sample of 955 000 [Upsilon](4S) decays we have confirmed charmless semileptonic decays of [ital B] mesons. In the momentum interval 2.3--2.6 GeV/[ital c] we observe an excess of 107[plus minus]15[plus minus]11 leptons, which we attribute to [ital b][r arrow][ital ul][nu]. This result yields a model-dependent range of values for [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar] that is lower than has been obtained in previous studies. For the inclusive spectator model of Altarelli [ital et] [ital al]. we find [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar]=0.076[plus minus]0.008. Models that describe [ital b][r arrow][ital ul][nu] with a limited set of exclusive final states give [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar]=0.06[minus]0.10. |
doi_str_mv | 10.1103/PhysRevLett.71.4111 |
format | Article |
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In the momentum interval 2.3--2.6 GeV/[ital c] we observe an excess of 107[plus minus]15[plus minus]11 leptons, which we attribute to [ital b][r arrow][ital ul][nu]. This result yields a model-dependent range of values for [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar] that is lower than has been obtained in previous studies. For the inclusive spectator model of Altarelli [ital et] [ital al]. we find [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar]=0.076[plus minus]0.008. Models that describe [ital b][r arrow][ital ul][nu] with a limited set of exclusive final states give [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar]=0.06[minus]0.10.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.71.4111</identifier><language>eng</language><publisher>United States</publisher><subject>662210 -- Specific Theories & Interaction Models ; 662420 -- Properties of Mesons & Meson Resonances-- (1992-) ; B MESONS ; BEAUTY PARTICLES ; BOSONS ; CP INVARIANCE ; CROSS SECTIONS ; DECAY ; ELEMENTARY PARTICLES ; ENERGY DEPENDENCE ; FIELD THEORIES ; HADRONS ; INVARIANCE PRINCIPLES ; KOBAYASHI-MASKAWA MATRIX ; MATRICES ; MATRIX ELEMENTS ; MESONS ; Pa ; PARTICLE DECAY ; Particle Systematics-- Unified Theories & Models-- (1992-) ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; PSEUDOSCALAR MESONS ; SEMILEPTONIC DECAY ; UNIFIED-FIELD THEORIES ; WEAK PARTICLE DECAY 662350 -- 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S.</creatorcontrib><creatorcontrib>Sapper</creatorcontrib><title>Measurement of charmless semileptonic decays of [ital B] mesons</title><title>Physical review letters</title><description>Using the CLEO II detector and a sample of 955 000 [Upsilon](4S) decays we have confirmed charmless semileptonic decays of [ital B] mesons. In the momentum interval 2.3--2.6 GeV/[ital c] we observe an excess of 107[plus minus]15[plus minus]11 leptons, which we attribute to [ital b][r arrow][ital ul][nu]. This result yields a model-dependent range of values for [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar] that is lower than has been obtained in previous studies. For the inclusive spectator model of Altarelli [ital et] [ital al]. we find [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar]=0.076[plus minus]0.008. Models that describe [ital b][r arrow][ital ul][nu] with a limited set of exclusive final states give [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar]=0.06[minus]0.10.</description><subject>662210 -- Specific Theories & Interaction Models</subject><subject>662420 -- Properties of Mesons & Meson Resonances-- (1992-)</subject><subject>B MESONS</subject><subject>BEAUTY PARTICLES</subject><subject>BOSONS</subject><subject>CP INVARIANCE</subject><subject>CROSS SECTIONS</subject><subject>DECAY</subject><subject>ELEMENTARY PARTICLES</subject><subject>ENERGY DEPENDENCE</subject><subject>FIELD THEORIES</subject><subject>HADRONS</subject><subject>INVARIANCE PRINCIPLES</subject><subject>KOBAYASHI-MASKAWA MATRIX</subject><subject>MATRICES</subject><subject>MATRIX ELEMENTS</subject><subject>MESONS</subject><subject>Pa</subject><subject>PARTICLE DECAY</subject><subject>Particle Systematics-- Unified Theories & Models-- (1992-)</subject><subject>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</subject><subject>PSEUDOSCALAR MESONS</subject><subject>SEMILEPTONIC DECAY</subject><subject>UNIFIED-FIELD THEORIES</subject><subject>WEAK PARTICLE DECAY 662350 -- Decays of Mesons-- (1992-)</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNqNyk8LAUEUAPBJlPXnE7hM7rve212GkyJyoCQ3aZvG0452Z-QN5dtL-QBOv8tPiAFCggjZaF---UCvLYWQKExyRGyICEHNYoWYN0UEkGE8A1Bt0WG-AQCmk2kk5jvS_HxQTS5If5Wm1I-6ImbJVNuK7sE7a-SFjH7zN5xs0JVcnGVN7B33ROuqK6b-z64YrlfH5Sb2HGzBxgYypfHOkQnFOE1VDpPsr_QBr4pBgg</recordid><startdate>19931220</startdate><enddate>19931220</enddate><creator>Bartelt, J.</creator><creator>Csorna, S.E.</creator><creator>Egyed, Z.</creator><creator>Jain, V.</creator><creator>Akerib, D.S.</creator><creator>Barish, B.</creator><creator>Chadha, M.</creator><creator>Chan, S.</creator><creator>Cowen, D.F.</creator><creator>Eigen, 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D.</creator><creator>Salman, S.</creator><creator>Sapper</creator><scope>OTOTI</scope></search><sort><creationdate>19931220</creationdate><title>Measurement of charmless semileptonic decays of [ital B] mesons</title><author>Bartelt, J. ; Csorna, S.E. ; Egyed, Z. ; Jain, V. ; Akerib, D.S. ; Barish, B. ; Chadha, M. ; Chan, S. ; Cowen, D.F. ; Eigen, G. ; Miller, J.S. ; O'Grady, C. ; Urheim, J. ; Weinstein, A.J. ; Acosta, D. ; Athanas, M. ; Masek, G. ; Paar, H. ; Sivertz, M. ; Bean, A. ; Gronberg, J. ; Kutschke, R. ; Menary, S. ; Morrison, R.J. ; Nakanishi, S. ; Nelson, H.N. ; Nelson, T.K. ; Richman, J.D. ; Ryd, A. ; Tajima, H. ; Schmidt, D. ; Sperka, D. ; Witherell, M.S. ; Procario, M. ; Yang, S. ; Cho, K. ; Daoudi, M. ; Ford, W.T. ; Johnson, D.R. ; Lingel, K. ; Lohner, M. ; Rankin, P. ; Smith, J.G. ; Alexander, J.P. ; Bebek, C. ; Berkelman, K. ; Besson, D. ; Browder, T.E. ; Cassel, D.G. ; Cho, H.A. ; Coffman, D.M. ; Drell, P.S. ; Ehrlich, R. ; Garcia-Sciveres, M. ; Geiser, B. ; Gittelman, B. ; Gray, S.W. ; Hartill, D.L. ; Heltsley, B.K. ; Jones, C.D. ; Jones, S.L. ; Kandaswamy, J. ; Katayama, N. ; Kim, P.C. ; Kreinick, D.L. ; Ludwig, G.S. ; Masui, J. ; Mevissen, J. ; Mistry, N.B. ; Ng, C.R. ; Nordberg, E. ; Ogg, M. ; Patterson, J.R. ; Peterson, D. ; Riley, D. ; Salman, S. ; Sapper</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-osti_scitechconnect_52274063</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>662210 -- Specific Theories & Interaction Models</topic><topic>662420 -- Properties of Mesons & Meson Resonances-- (1992-)</topic><topic>B MESONS</topic><topic>BEAUTY PARTICLES</topic><topic>BOSONS</topic><topic>CP INVARIANCE</topic><topic>CROSS SECTIONS</topic><topic>DECAY</topic><topic>ELEMENTARY PARTICLES</topic><topic>ENERGY DEPENDENCE</topic><topic>FIELD THEORIES</topic><topic>HADRONS</topic><topic>INVARIANCE 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M.</creatorcontrib><creatorcontrib>Geiser, B.</creatorcontrib><creatorcontrib>Gittelman, B.</creatorcontrib><creatorcontrib>Gray, S.W.</creatorcontrib><creatorcontrib>Hartill, D.L.</creatorcontrib><creatorcontrib>Heltsley, B.K.</creatorcontrib><creatorcontrib>Jones, C.D.</creatorcontrib><creatorcontrib>Jones, S.L.</creatorcontrib><creatorcontrib>Kandaswamy, J.</creatorcontrib><creatorcontrib>Katayama, N.</creatorcontrib><creatorcontrib>Kim, P.C.</creatorcontrib><creatorcontrib>Kreinick, D.L.</creatorcontrib><creatorcontrib>Ludwig, G.S.</creatorcontrib><creatorcontrib>Masui, J.</creatorcontrib><creatorcontrib>Mevissen, J.</creatorcontrib><creatorcontrib>Mistry, N.B.</creatorcontrib><creatorcontrib>Ng, C.R.</creatorcontrib><creatorcontrib>Nordberg, E.</creatorcontrib><creatorcontrib>Ogg, M.</creatorcontrib><creatorcontrib>Patterson, J.R.</creatorcontrib><creatorcontrib>Peterson, D.</creatorcontrib><creatorcontrib>Riley, D.</creatorcontrib><creatorcontrib>Salman, S.</creatorcontrib><creatorcontrib>Sapper</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bartelt, J.</au><au>Csorna, S.E.</au><au>Egyed, Z.</au><au>Jain, V.</au><au>Akerib, D.S.</au><au>Barish, B.</au><au>Chadha, M.</au><au>Chan, S.</au><au>Cowen, D.F.</au><au>Eigen, G.</au><au>Miller, J.S.</au><au>O'Grady, C.</au><au>Urheim, J.</au><au>Weinstein, A.J.</au><au>Acosta, D.</au><au>Athanas, M.</au><au>Masek, G.</au><au>Paar, H.</au><au>Sivertz, M.</au><au>Bean, A.</au><au>Gronberg, J.</au><au>Kutschke, R.</au><au>Menary, S.</au><au>Morrison, R.J.</au><au>Nakanishi, S.</au><au>Nelson, H.N.</au><au>Nelson, T.K.</au><au>Richman, J.D.</au><au>Ryd, A.</au><au>Tajima, H.</au><au>Schmidt, D.</au><au>Sperka, D.</au><au>Witherell, M.S.</au><au>Procario, M.</au><au>Yang, S.</au><au>Cho, K.</au><au>Daoudi, M.</au><au>Ford, W.T.</au><au>Johnson, D.R.</au><au>Lingel, K.</au><au>Lohner, M.</au><au>Rankin, P.</au><au>Smith, J.G.</au><au>Alexander, J.P.</au><au>Bebek, C.</au><au>Berkelman, K.</au><au>Besson, D.</au><au>Browder, T.E.</au><au>Cassel, D.G.</au><au>Cho, H.A.</au><au>Coffman, D.M.</au><au>Drell, P.S.</au><au>Ehrlich, R.</au><au>Garcia-Sciveres, M.</au><au>Geiser, B.</au><au>Gittelman, B.</au><au>Gray, S.W.</au><au>Hartill, D.L.</au><au>Heltsley, B.K.</au><au>Jones, C.D.</au><au>Jones, S.L.</au><au>Kandaswamy, J.</au><au>Katayama, N.</au><au>Kim, P.C.</au><au>Kreinick, D.L.</au><au>Ludwig, G.S.</au><au>Masui, J.</au><au>Mevissen, J.</au><au>Mistry, N.B.</au><au>Ng, C.R.</au><au>Nordberg, E.</au><au>Ogg, M.</au><au>Patterson, J.R.</au><au>Peterson, D.</au><au>Riley, D.</au><au>Salman, S.</au><au>Sapper</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of charmless semileptonic decays of [ital B] mesons</atitle><jtitle>Physical review letters</jtitle><date>1993-12-20</date><risdate>1993</risdate><volume>71:25</volume><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Using the CLEO II detector and a sample of 955 000 [Upsilon](4S) decays we have confirmed charmless semileptonic decays of [ital B] mesons. In the momentum interval 2.3--2.6 GeV/[ital c] we observe an excess of 107[plus minus]15[plus minus]11 leptons, which we attribute to [ital b][r arrow][ital ul][nu]. This result yields a model-dependent range of values for [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar] that is lower than has been obtained in previous studies. For the inclusive spectator model of Altarelli [ital et] [ital al]. we find [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar]=0.076[plus minus]0.008. Models that describe [ital b][r arrow][ital ul][nu] with a limited set of exclusive final states give [vert bar][ital V][sub [ital u][ital b]]/[ital V][sub [ital c][ital b]][vert bar]=0.06[minus]0.10.</abstract><cop>United States</cop><doi>10.1103/PhysRevLett.71.4111</doi></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0031-9007 |
ispartof | Physical review letters, 1993-12, Vol.71:25 |
issn | 0031-9007 1079-7114 |
language | eng |
recordid | cdi_osti_scitechconnect_5227406 |
source | American Physical Society Journals |
subjects | 662210 -- Specific Theories & Interaction Models 662420 -- Properties of Mesons & Meson Resonances-- (1992-) B MESONS BEAUTY PARTICLES BOSONS CP INVARIANCE CROSS SECTIONS DECAY ELEMENTARY PARTICLES ENERGY DEPENDENCE FIELD THEORIES HADRONS INVARIANCE PRINCIPLES KOBAYASHI-MASKAWA MATRIX MATRICES MATRIX ELEMENTS MESONS Pa PARTICLE DECAY Particle Systematics-- Unified Theories & Models-- (1992-) PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PSEUDOSCALAR MESONS SEMILEPTONIC DECAY UNIFIED-FIELD THEORIES WEAK PARTICLE DECAY 662350 -- Decays of Mesons-- (1992-) |
title | Measurement of charmless semileptonic decays of [ital B] mesons |
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