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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Veröffentlicht in:Physical review letters 1993-12, Vol.71:25
Hauptverfasser: 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
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container_title Physical review letters
container_volume 71:25
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><subject>662210 -- Specific Theories &amp; Interaction Models</subject><subject>662420 -- Properties of Mesons &amp; 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 &amp; 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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PRINCIPLES</topic><topic>KOBAYASHI-MASKAWA MATRIX</topic><topic>MATRICES</topic><topic>MATRIX ELEMENTS</topic><topic>MESONS</topic><topic>Pa</topic><topic>PARTICLE DECAY</topic><topic>Particle Systematics-- Unified Theories &amp; Models-- (1992-)</topic><topic>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</topic><topic>PSEUDOSCALAR MESONS</topic><topic>SEMILEPTONIC DECAY</topic><topic>UNIFIED-FIELD THEORIES</topic><topic>WEAK PARTICLE DECAY 662350 -- Decays of Mesons-- (1992-)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bartelt, J.</creatorcontrib><creatorcontrib>Csorna, S.E.</creatorcontrib><creatorcontrib>Egyed, Z.</creatorcontrib><creatorcontrib>Jain, V.</creatorcontrib><creatorcontrib>Akerib, D.S.</creatorcontrib><creatorcontrib>Barish, B.</creatorcontrib><creatorcontrib>Chadha, M.</creatorcontrib><creatorcontrib>Chan, S.</creatorcontrib><creatorcontrib>Cowen, D.F.</creatorcontrib><creatorcontrib>Eigen, G.</creatorcontrib><creatorcontrib>Miller, J.S.</creatorcontrib><creatorcontrib>O'Grady, C.</creatorcontrib><creatorcontrib>Urheim, J.</creatorcontrib><creatorcontrib>Weinstein, A.J.</creatorcontrib><creatorcontrib>Acosta, D.</creatorcontrib><creatorcontrib>Athanas, M.</creatorcontrib><creatorcontrib>Masek, G.</creatorcontrib><creatorcontrib>Paar, H.</creatorcontrib><creatorcontrib>Sivertz, M.</creatorcontrib><creatorcontrib>Bean, A.</creatorcontrib><creatorcontrib>Gronberg, J.</creatorcontrib><creatorcontrib>Kutschke, R.</creatorcontrib><creatorcontrib>Menary, S.</creatorcontrib><creatorcontrib>Morrison, R.J.</creatorcontrib><creatorcontrib>Nakanishi, S.</creatorcontrib><creatorcontrib>Nelson, H.N.</creatorcontrib><creatorcontrib>Nelson, T.K.</creatorcontrib><creatorcontrib>Richman, J.D.</creatorcontrib><creatorcontrib>Ryd, A.</creatorcontrib><creatorcontrib>Tajima, H.</creatorcontrib><creatorcontrib>Schmidt, D.</creatorcontrib><creatorcontrib>Sperka, D.</creatorcontrib><creatorcontrib>Witherell, M.S.</creatorcontrib><creatorcontrib>Procario, M.</creatorcontrib><creatorcontrib>Yang, S.</creatorcontrib><creatorcontrib>Cho, K.</creatorcontrib><creatorcontrib>Daoudi, M.</creatorcontrib><creatorcontrib>Ford, W.T.</creatorcontrib><creatorcontrib>Johnson, D.R.</creatorcontrib><creatorcontrib>Lingel, K.</creatorcontrib><creatorcontrib>Lohner, M.</creatorcontrib><creatorcontrib>Rankin, P.</creatorcontrib><creatorcontrib>Smith, J.G.</creatorcontrib><creatorcontrib>Alexander, J.P.</creatorcontrib><creatorcontrib>Bebek, C.</creatorcontrib><creatorcontrib>Berkelman, K.</creatorcontrib><creatorcontrib>Besson, D.</creatorcontrib><creatorcontrib>Browder, T.E.</creatorcontrib><creatorcontrib>Cassel, D.G.</creatorcontrib><creatorcontrib>Cho, H.A.</creatorcontrib><creatorcontrib>Coffman, D.M.</creatorcontrib><creatorcontrib>Drell, P.S.</creatorcontrib><creatorcontrib>Ehrlich, R.</creatorcontrib><creatorcontrib>Garcia-Sciveres, 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>
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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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