A study of charm meson production in semileptonic B decays

OPAL Collaboration

doi:10.1007/BF01564821

A study of charm meson production in semileptonic B decays

OPAL Collaboration

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

Abstract

The results of a study of charm meson production in semileptonic B hadron decays are presented. Based on a sample of 1.72 million hadronic Z⁰ decays the following product branching ratios (averaged over electrons and muons) are obtained: {Mathematical expression} where the first error is statistical and the second systematic. The results of a search for the narrow P-wave charmed mesons, (D_J), in semileptonic B decays are also reported. Using the decay channels D_J⁰→D⁺π^-, D_J⁰→D^*+π^- and D₊^J→D⁰π⁺ we observe a total signal of 44±8_-7⁺³ D_J⁰ and 48±10_-6⁺³ D_J⁺ events. This is the first evidence for semileptonic B decays to charged P-wave charm states. The observed signals also provide evidence for the production of both pseudovector and tensor P-wave charmed mesons in semileptonic B decay. Together these modes are estimated to make up 34±7% of charmed semileptonic B⁰ and B⁺ decays.

Original language	English
Pages (from-to)	57-68
Number of pages	12
Journal	European Physical Journal C
Volume	67
Issue number	1
DOIs	https://doi.org/10.1007/BF01564821
State	Published - 1 Mar 1995
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1007/BF01564821

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@article{fbce2af81f73431882ff55de581386d5,

title = "A study of charm meson production in semileptonic B decays",

abstract = "The results of a study of charm meson production in semileptonic B hadron decays are presented. Based on a sample of 1.72 million hadronic Z0 decays the following product branching ratios (averaged over electrons and muons) are obtained: {Mathematical expression} where the first error is statistical and the second systematic. The results of a search for the narrow P-wave charmed mesons, (DJ), in semileptonic B decays are also reported. Using the decay channels DJ0→D+π-, DJ0→D*+π- and D+J→D0π+ we observe a total signal of 44±8-7+3 DJ0 and 48±10-6+3 DJ+ events. This is the first evidence for semileptonic B decays to charged P-wave charm states. The observed signals also provide evidence for the production of both pseudovector and tensor P-wave charmed mesons in semileptonic B decay. Together these modes are estimated to make up 34±7% of charmed semileptonic B0 and B+ decays.",

author = "{OPAL Collaboration} and R. Akers and G. Alexander and J. Allison and K. Ametewee and Anderson, {K. J.} and S. Arcelli and S. Asai and D. Axen and G. Azuelos and Ball, {A. H.} and E. Barberio and Barlow, {R. J.} and R. Bartoldus and Batley, {J. R.} and G. Beaudoin and A. Beck and Beck, {G. A.} and C. Beeston and T. Behnke and Bell, {K. W.} and G. Bella and S. Bentvelsen and P. Berlich and S. Bethke and O. Biebel and Bloodworth, {I. J.} and P. Bock and Bosch, {H. M.} and M. Boutemeur and S. Braibant and P. Bright-Thomas and Brown, {R. M.} and A. Buijs and Burckhart, {H. J.} and R. B{\"u}rgin and C. Burgard and N. Capdevielle and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and C. Charlesworth and Charlton, {D. G.} and Chu, {S. L.} and Clarke, {P. E.L.} and Clayton, {J. C.} and Clowes, {S. G.} and I. Cohen and R. Folman",

year = "1995",

month = mar,

day = "1",

doi = "10.1007/BF01564821",

language = "English",

volume = "67",

pages = "57--68",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer New York",

number = "1",

}

TY - JOUR

T1 - A study of charm meson production in semileptonic B decays

AU - OPAL Collaboration

AU - Akers, R.

AU - Alexander, G.

AU - Allison, J.

AU - Ametewee, K.

AU - Anderson, K. J.

AU - Arcelli, S.

AU - Asai, S.

AU - Axen, D.

AU - Azuelos, G.

AU - Ball, A. H.

AU - Barberio, E.

AU - Barlow, R. J.

AU - Bartoldus, R.

AU - Batley, J. R.

AU - Beaudoin, G.

AU - Beck, A.

AU - Beck, G. A.

AU - Beeston, C.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bella, G.

AU - Bentvelsen, S.

AU - Berlich, P.

AU - Bethke, S.

AU - Biebel, O.

AU - Bloodworth, I. J.

AU - Bock, P.

AU - Bosch, H. M.

AU - Boutemeur, M.

AU - Braibant, S.

AU - Bright-Thomas, P.

AU - Brown, R. M.

AU - Buijs, A.

AU - Burckhart, H. J.

AU - Bürgin, R.

AU - Burgard, C.

AU - Capdevielle, N.

AU - Capiluppi, P.

AU - Carnegie, R. K.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlesworth, C.

AU - Charlton, D. G.

AU - Chu, S. L.

AU - Clarke, P. E.L.

AU - Clayton, J. C.

AU - Clowes, S. G.

AU - Cohen, I.

AU - Folman, R.

PY - 1995/3/1

Y1 - 1995/3/1

N2 - The results of a study of charm meson production in semileptonic B hadron decays are presented. Based on a sample of 1.72 million hadronic Z0 decays the following product branching ratios (averaged over electrons and muons) are obtained: {Mathematical expression} where the first error is statistical and the second systematic. The results of a search for the narrow P-wave charmed mesons, (DJ), in semileptonic B decays are also reported. Using the decay channels DJ0→D+π-, DJ0→D*+π- and D+J→D0π+ we observe a total signal of 44±8-7+3 DJ0 and 48±10-6+3 DJ+ events. This is the first evidence for semileptonic B decays to charged P-wave charm states. The observed signals also provide evidence for the production of both pseudovector and tensor P-wave charmed mesons in semileptonic B decay. Together these modes are estimated to make up 34±7% of charmed semileptonic B0 and B+ decays.

AB - The results of a study of charm meson production in semileptonic B hadron decays are presented. Based on a sample of 1.72 million hadronic Z0 decays the following product branching ratios (averaged over electrons and muons) are obtained: {Mathematical expression} where the first error is statistical and the second systematic. The results of a search for the narrow P-wave charmed mesons, (DJ), in semileptonic B decays are also reported. Using the decay channels DJ0→D+π-, DJ0→D*+π- and D+J→D0π+ we observe a total signal of 44±8-7+3 DJ0 and 48±10-6+3 DJ+ events. This is the first evidence for semileptonic B decays to charged P-wave charm states. The observed signals also provide evidence for the production of both pseudovector and tensor P-wave charmed mesons in semileptonic B decay. Together these modes are estimated to make up 34±7% of charmed semileptonic B0 and B+ decays.

UR - http://www.scopus.com/inward/record.url?scp=0002782173&partnerID=8YFLogxK

U2 - 10.1007/BF01564821

DO - 10.1007/BF01564821

M3 - Article

AN - SCOPUS:0002782173

VL - 67

SP - 57

EP - 68

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 1

ER -

A study of charm meson production in semileptonic B decays

Abstract

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