MEASUREMENT OF THE RELATIVE BRANCHING FRACTION GAMMA(D0-]K-MU-V)GAMMA(D0-]MU-X)

被引:36
作者
KODAMA, K
USHIDA, N
MOKHTARANI, A
PAOLONE, VS
VOLK, JT
WILCOX, JO
YAGER, PM
EDELSTEIN, RM
FREYBERGER, AP
GIBAUT, DB
LIPTON, RJ
NICHOLS, WR
POTTER, DM
RUSS, JS
ZHANG, Y
JANG, HI
KIM, JY
LIM, IT
PAC, MY
BALLER, BR
STEFANSKI, RJ
NAKAZAWA, K
TASAKA, S
CHOI, YS
CHUNG, KH
KIM, DC
PARK, IG
SONG, JS
YOON, CS
CHIKAWA, M
ABE, T
FUJII, T
FUJIOKA, G
FUJIWARA, K
FUKUSHIMA, H
HARA, T
TAKAHASHI, Y
TARUMA, K
TSUZUKI, Y
YOKOYAMA, C
CHANG, SD
CHEON, BG
CHO, JH
KANG, JS
KIM, CO
KIM, KY
KIM, TY
LEE, JC
LEE, SB
LIM, GY
机构
[1] UNIV CALIF DAVIS,DAVIS,CA 95616
[2] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213
[3] CHONNAM NATL UNIV,KWANGJU 500757,SOUTH KOREA
[4] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510
[5] GIFU UNIV,GIFU 50111,JAPAN
[6] GYEONGSANG NATL UNIV,JINJU 660300,SOUTH KOREA
[7] KINKI UNIV,HIGASHIOSAKA,OSAKA 577,JAPAN
[8] KOBE UNIV,KOBE 657,JAPAN
[9] UNIV KOREA,SEOUL 136701,SOUTH KOREA
[10] NAGOYA INST TECHNOL,NAGOYA,AICHI 466,JAPAN
[11] NAGOYA UNIV,NAGOYA,AICHI 464,JAPAN
[12] OHIO STATE UNIV,COLUMBUS,OH 43210
[13] OKAYAMA UNIV,OKAYAMA 700,JAPAN
[14] UNIV OKLAHOMA,NORMAN,OK 73019
[15] OSAKA CITY UNIV,OSAKA 558,JAPAN
[16] SCI EDUC INST OSAKA PREFECTURE,OSAKA 558,JAPAN
[17] TOHO UNIV,FUNABASHI,CHIBA 274,JAPAN
[18] UTSUNOMIYA UNIV,UTSUNOMIYA 350,JAPAN
[19] WONKWANG UNIV,IRI 570749,SOUTH KOREA
关键词
D O I
10.1103/PhysRevLett.66.1819
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The fraction f of D0 semimuonic decays which occur through the K-mu-v mode has been measured in a hybrid emulsion spectrometer. Analysis of 124 semimuonic D0-decay candidates gives f = 0.32 +/- 0.05(stat) +/- 0.05(syst). From this measurement and existing data on the D0 semileptonic branching ratio and lifetime, we obtain the branching ratio R(D0 --> K- mu+v) = (2.4 +/- 0.4 +/- 0.5)% and partial decay rate-GAMMA(D0 --> K- mu+v) = (5.6 +/- 0.9 +/- 1.2) x 10(10) s-1.
引用
收藏
页码:1819 / 1822
页数:4
相关论文
共 29 条
[21]  
OLEYNIK GA, 1987, THESIS OHIO STATE U
[22]  
PALKA H, 1987, Z PHYS C PART FIELDS, V35, P151, DOI 10.1007/BF01408443
[23]  
PAOLONE VS, 1990, THESIS U CALIFORNIA
[24]   POLARIZATION IN BBAR-]D-STAR E-VBARE AND D-]KBAR-STAR E+VE [J].
SCORA, D ;
ISGUR, N .
PHYSICAL REVIEW D, 1989, 40 (05) :1491-1496
[25]  
TARUMA K, 1987, THESIS KOBE U
[26]  
WATANABE S, IN PRESS P JAPAN US, P215
[27]   PROTON-NUCLEUS COLLISIONS IN MULTI-GEV REGION [J].
WINZELER, H .
NUCLEAR PHYSICS, 1965, 69 (03) :661-&
[28]   EXCLUSIVE SEMILEPTONIC DECAYS OF HEAVY MESONS [J].
WIRBEL, M ;
STECH, B ;
BAUER, M .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1985, 29 (04) :637-642
[29]  
ZHANG YL, 1989, THESIS CARNEGIE MELL