MEASUREMENT OF THE FORM-FACTOR RATIOS IN THE DECAY D+-]KBAR-STAR(892)0-MU+NU

被引：58

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

CHIKAWA, M

ABE, T

AOKI, S

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

机构：

[1] CHONNAM NATL UNIV,KWANGJU 500757,SOUTH KOREA

[2] GYEONGSANG NATL UNIV,JINJU 660300,SOUTH KOREA

[3] UNIV KOREA,SEOUL 136701,SOUTH KOREA

[4] SCI EDUC INST OSAKA PREFECTURE,OSAKA 558,JAPAN

[5] WONKWANG UNIV,IRI 570749,SOUTH KOREA

[6] UNIV CALIF DAVIS,DAVIS,CA 95616

[7] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213

[8] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510

[9] GIFU UNIV,GIFU 50111,JAPAN

[10] KINKI UNIV,HIGASHIOSAKA,OSAKA 577,JAPAN

[11] KOBE UNIV,KOBE 657,JAPAN

[12] NAGOYA INST TECHNOL,NAGOYA,AICHI 466,JAPAN

[13] NAGOYA UNIV,NAGOYA,AICHI 464,JAPAN

[14] OHIO STATE UNIV,COLUMBUS,OH 43210

[15] OKAYAMA UNIV,OKAYAMA 700,JAPAN

[16] UNIV OKLAHOMA,NORMAN,OK 73019

[17] OSAKA CITY UNIV,OSAKA 558,JAPAN

[18] TOHO UNIV,FUNABASHI,CHIBA 274,JAPAN

[19] UTSUNOMIYA UNIV,UTSUNOMIYA,TOCHIGI 321,JAPAN

来源：

PHYSICS LETTERS B | 1992年 / 274卷 / 02期

关键词：

D O I：

10.1016/0370-2693(92)90530-H

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A measurement of the form factor ratios in the decay D+ --> K*BAR(892)0-mu+-nu is obtained by fitting to the decay angles and q2 of 305 events. The results, evaluated at q2 = 0, are A2(0)/A1(0) = 0.82(-0.23)+0.22 (stat.) +/- 0.11 (sys.) and V(0)/A1(0) = 2.00(-0.32)+0.34 +/- 0.16, where A1 and A2 are the axial vector form factors and V is the vector form factor. The corresponding ratio of the longitudinal to transverse polarization of the KBAR*0 is 1.18 +/- 0.18 +/- 0.08. These results are compared with other experimental results and with theoretical predictions.

引用

页码：246 / 252

页数：7

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