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

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 14期

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

页码：1819 / 1822

页数：4

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