MEASUREMENT OF GAMMA(D(0)-]K-GAMMA+NU)/GAMMA(D(0)-]MU+-X) USING A D-ASTERISK-TAG

被引：6
|
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, C
ZHANG, Y
JANG, HI
KIM, JY
KIM, TI
LIM, IT
PAC, MY
BALLER, BR
STEFANSKI, RJ
NAKAZAWA, K
CHUNG, KS
CHUNG, SH
KIM, DC
PARK, IG
PARK, MS
SONG, JS
YOON, CS
ARYAL, M
REAY, NW
SIDWELL, RA
STANTON, NR
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
机构：
[1] UNIV CALIF DAVIS,DAVIS,CA 95616
[2] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213
[3] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510
[4] GIFU UNIV,GIFU 50111,JAPAN
[5] KANSAS STATE UNIV AGR & APPL SCI,MANHATTAN,KS 66506
[6] KINKI UNIV,OSAKA,OSAKA 577,JAPAN
[7] KOBE UNIV,KOBE 657,JAPAN
[8] NAGOYA INST TECHNOL,NAGOYA,AICHI 466,JAPAN
[9] NAGOYA UNIV,NAGOYA,AICHI 464,JAPAN
[10] OHIO STATE UNIV,COLUMBUS,OH 43210
[11] CHONNAM NATL UNIV,KWANGJU 500757,SOUTH KOREA
[12] GYEONGSANG NATL UNIV,JINJU 660300,SOUTH KOREA
[13] KOREA UNIV,SEOUL 136701,SOUTH KOREA
[14] OKAYAMA UNIV,OKAYAMA 700,JAPAN
[15] UNIV OKLAHOMA,NORMAN,OK 73019
[16] OSAKA CITY UNIV,OSAKA 558,JAPAN
[17] SCI EDUC INST OSAKA PREFECTURE,OSAKA 558,JAPAN
[18] TOHO UNIV,FUNABASHI,CHIBA 274,JAPAN
[19] UTSUNOMIYA UNIV,UTSUNOMIYA,TOCHIGI 321,JAPAN
[20] WONKWANG UNIV,IRI 570749,SOUTH KOREA
来源：
PHYSICS LETTERS B | 1994年 / 336卷 / 3-4期
关键词：
D O I：
10.1016/0370-2693(94)90579-7
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The relative branching fraction R(K) = GAMMA(D0 --> K- mu+ nu)/GAMMA(D0 --> mu+ X) has been measured by Fermilab experiment E653, using D0 mesons produced by 600 GeV pi-. The semimuonic decay sample of 232 events was identified by the decay chain D*+ --> D0pi+, D0 --> mu+h-X, where h is a hadron. The Kmunu component was extracted from the joint distribution of these events in the D0 decay variables M(min) and p(Th). We find R(K) = 0.472 +/- 0.051 (stat) +/- 0.040 (sys), and use a world average of the D0 --> Klnu branching fraction to obtain the D0 inclusive semimuonic branching fraction B(D0 --> mu+ X) = (7.67 +/- 1.13)%.
引用
收藏
页码：605 / 613
页数：9
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