OBSERVATION OF THE MUONIC DECAY, DS+/--]MU+/-NU-MU

被引:69
作者
AOKI, S
BARONI, G
BISI, V
BRESLIN, AC
CATANESI, MG
CHIBA, K
DAVIS, DH
DILIBERTO, S
ESTEN, MJ
GERKE, C
HOSHINO, K
KAZUNO, M
KOBAYASHI, M
KODAMA, K
MAEDA, Y
MARZARICHIESA, A
MAZZONI, MA
MEDDI, F
MINAKAWA, F
MIYANISHI, M
MUCIACCIA, MT
NAKAMURA, M
NAKAZAWA, K
NIU, K
NIWA, K
POULARD, G
RADICIONI, E
RAMELLO, L
ROMANO, G
ROSA, G
RUGGIERI, F
SARTORI, MS
SASAKI, H
SATO, Y
SGARBI, C
SHIBUYA, H
SIMONE, S
TAJIMA, H
TASAKA, S
TEZUKA, I
TOVEE, DN
USHIDA, N
YANAGISAWA, Y
机构
[1] NAGOYA UNIV,DEPT PHYS,NAGOYA 46401,JAPAN
[2] UNIV LA SAPIENZA,DIPARTIMENTO FIS,I-00186 ROME,ITALY
[3] UNIV TURIN,DIPARTIMENTO FIS SPERIMENTALE,I-10125 TURIN,ITALY
[4] NATL UNIV IRELAND UNIV COLL DUBLIN,DEPT PHYS,DUBLIN 4,IRELAND
[5] SEZ INFN,I-10125 TURIN,ITALY
[6] SEZ INFN,I-00186 ROME,ITALY
[7] SEZ INFN,I-70126 BARI,ITALY
[8] UNIV BARI,DIPARTIMENTO FIS,I-70126 BARI,ITALY
[9] CERN,CH-1211 GENEVA 23,SWITZERLAND
[10] UNIV LONDON UNIV COLL,DEPT PHYS & ASTRON,LONDON WC1E 6BT,ENGLAND
[11] YOKOHAMA NATL UNIV,FAC EDUC,YOKOHAMA,KANAGAWA 240,JAPAN
[12] AICHI UNIV EDUC,KARIYA 448,JAPAN
[13] TOHO UNIV,DEPT PHYS,FUNABASHI,CHIBA 274,JAPAN
[14] GIFU UNIV,DEPT PHYS,GIFU 502,JAPAN
[15] UNIV SALERNO,SMSA,I-84100 SALERNO,ITALY
[16] UNIV SALERNO,DIPARTIMENTO CENT TOXICOL,I-84100 SALERNO,ITALY
[17] UTSUNOMIYA UNIV,FAC EDUC,UTSUNOMIYA,TOCHIGI 321,JAPAN
来源
PROGRESS OF THEORETICAL PHYSICS | 1993年 / 89卷 / 01期
关键词
D O I
10.1143/PTP.89.131
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The muonic decay of charmed strange mesons has been observed directly, in the analysis of a sample of 144 decays of charged charmed particles into a muon and no other charged particle. The branching ratio is estimated to be BR(D(s)+/- --> mu+/-nu(mu)) = (4.0(-1.4-0.6)+1.8+0.8+/-1.7) x 10(-3), assuming a ratio r = 0.27 between production cross sections of D(s)+/- and neutral charmed particles. The decay constant f(Ds) is estimated to be (232+/-45+/-20+/-48)MeV/c2 and does not depend on theoretical assumptions.
引用
收藏
页码:131 / 138
页数:8
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