THE SEMILEPTONIC DECAY FRACTION OF B-MESONS IN THE LIGHT OF INTERFERING AMPLITUDES

被引：9

作者：

HONSCHEID, K ^{[1
]}

SCHUBERT, KR ^{[1
]}

WALDI, R ^{[1
]}

机构：

[1] TECH UNIV DRESDEN,INST KERN & TEILCHENPHYS,D-01062 DRESDEN,GERMANY

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1994年 / 63卷 / 01期

关键词：

D O I：

10.1007/BF01577550

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Consequences of the interference between spectator amplitudes for the lifetimes and semileptonic decay fractions of B0 and B+ mesons are discussed. Extracting these amplitudes from a fit to 11 exclusive hadronic B decay fractions we find a1=1.05+/-0.03+/-0.10, a2=+0.227+/-0.012+/-0.022, an inclusive semileptonic decay fraction of (11.2+/-0.5+/-1.7)%, and a lifetime ratio tau(B+)/tau(B0)=0.83+/-0.01+/-0.01.

引用

页码：117 / 120

页数：4

共 50 条

[41] SEMILEPTONIC DECAYS OF B-MESONS INTO TAU-NU-TAU/ IN A 2 HIGGS DOUBLET MODEL [J].

KALINOWSKI, J .

PHYSICS LETTERS B, 1990, 245 (02) :201-206

[42] MASS OF THE TOP QUARK AND INDUCED DECAY AND MIXING OF NEUTRAL B-MESONS [J].

CAMPBELL, BA ;

ODONNELL, PJ .

PHYSICAL REVIEW D, 1982, 25 (07) :1989-1992

[43] PSEUDOSCALAR DECAY CONSTANTS OF B-MESONS AND D-MESONS IN THE RELATIVISTIC QUARK-MODEL [J].

GALKIN, VO ;

MISHUROV, AY ;

FAUSTOV, RP .

SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1991, 53 (06) :1026-1029

[44] WEAK DECAYS OF B-MESONS [J].

WITHERELL, MS .

NUCLEAR PHYSICS B, 1994, :1-11

[45] Semileptonic D decay into scalar mesons [J].

Nielsen, M ;

Navarra, FS ;

Dosch, HG ;

Ferreira, EM .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2003, 121 :110-113

[46] RATIOS OF OBSERVABLES FOR B-MESONS [J].

HARRISON, PF ;

ROSNER, JL .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1992, 18 (10) :1673-1677

[47] HOW TO DISCOVER THE B-MESONS [J].

FRITZSCH, H .

PHYSICS LETTERS B, 1979, 86 (3-4) :343-346

[48] SEMILEPTONIC BRANCHING FRACTIONS OF CHARGED AND NEUTRAL B-MESONS (VOL 73, PG 3503, 1994) [J].

ATHANAS, M ;

BROWER, W ;

MASEK, G ;

PAAR, HP ;

GRONBERG, J ;

KUTSCHKE, R ;

MENARY, S ;

MORRISON, RJ ;

NAKANISHI, S ;

NELSON, HN ;

NELSON, TK ;

QIAO, C ;

RICHMAN, JD ;

RYD, A ;

TAJIMA, H ;

SPERKA, D ;

WITHERELL, MS ;

BALEST, R ;

CHO, K ;

FORD, WT ;

JOHNSON, DR ;

LINGEL, K ;

LOHNER, M ;

RANKIN, P ;

SMITH, JG ;

ALEXANDER, JP ;

BEBEK, C ;

BERKELMAN, K ;

BLOOM, K ;

BROWDER, TE ;

CASSEL, DG ;

CHO, HA ;

COFFMAN, DM ;

CROWCROFT, DS ;

DRELL, PS ;

DUMAS, D ;

EHRLICH, R ;

GAIDAREV, P ;

GARCIASCIVERES, M ;

GEISER, B ;

GITTELMAN, B ;

GRAY, SW ;

HARTILL, DL ;

HELTSLEY, BK ;

HENDERSON, S ;

JONES, CD ;

JONES, SL ;

KANDASWAMY, J ;

KATAYAMA, N ;

KIM, PC .

PHYSICAL REVIEW LETTERS, 1995, 74 (15) :3090-3091

[49] Exclusive semileptonic and nonleptonic decays of B mesons to orbitally excited light mesons [J].

Ebert, D. ;

Faustov, R. N. ;

Galkin, V. O. .

PHYSICAL REVIEW D, 2012, 85 (05)

[50] PROSPECTS FOR CP IN B-MESONS [J].

URALTSEV, NG .

NUCLEAR PHYSICS A, 1988, 478 :C261-C261

← 1 2 3 4 5 →