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

页码：131 / 138

页数：8