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

页码：605 / 613

页数：9

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