FORM-FACTOR RATIO MEASUREMENT IN LAMBDA(+)(C)-]LAMBDA-E(+)NU(E)

被引：28

作者：

CRAWFORD, G

DAUBENMIER, CM

FULTON, R

FUJINO, D

GAN, KK

HONSCHEID, K

KAGAN, H

KASS, R

LEE, J

SUNG, M

WHITE, C

WOLF, A

ZOELLER, MM

BUTLER, F

FU, X

NEMATI, B

ROSS, WR

SKUBIC, P

WOOD, M

BISHAI, M

FAST, J

GERNDT, E

HINSON, JW

MCILWAIN, RL

MIAO, T

MILLER, DH

MODESITT, M

PAYNE, D

SHIBATA, EI

SHIPSEY, IPJ

WANG, PN

BATTLE, M

ERNST, J

GIBBONS, L

KWON, Y

ROBERTS, S

THORNDIKE, EH

WANG, CH

DOMINICK, J

LAMBRECHT, M

SANGHERA, S

SHELKOV, V

SKWARNICKI, T

STROYNOWSKI, R

VOLOBOUEV, I

WEI, G

ZADOROZHNY, P

ARTUSO, M

GAO, M

GOLDBERG, M

机构：

[1] UNIV OKLAHOMA,NORMAN,OK 73019

[2] PURDUE UNIV,W LAFAYETTE,IN 47907

[3] UNIV ROCHESTER,ROCHESTER,NY 14627

[4] SO METHODIST UNIV,DALLAS,TX 75275

[5] SYRACUSE UNIV,SYRACUSE,NY 13244

[6] VANDERBILT UNIV,NASHVILLE,TN 37235

[7] VIRGINIA POLYTECH INST & STATE UNIV,BLACKSBURG,VA 24061

[8] CALTECH,PASADENA,CA 91125

[9] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093

[10] UNIV CALIF SANTA BARBARA,SANTA BARBARA,CA 93106

[11] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213

[12] UNIV COLORADO,BOULDER,CO 80309

[13] CORNELL UNIV,ITHACA,NY 14853

[14] UNIV FLORIDA,GAINESVILLE,FL 32611

[15] HARVARD UNIV,CAMBRIDGE,MA 02138

[16] UNIV ILLINOIS,URBANA,IL 61801

[17] CARLETON UNIV,OTTAWA,ON K1S 5B6,CANADA

[18] INST PARTICLE PHYS,MONTREAL,PQ,CANADA

[19] MCGILL UNIV,MONTREAL,PQ H3A 2T8,CANADA

[20] ITHACA COLL,ITHACA,NY 14850

[21] UNIV KANSAS,LAWRENCE,KS 66045

[22] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

[23] SUNY ALBANY,ALBANY,NY 12222

[24] UNIV HAWAII MANOA,HONOLULU,HI 96822

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.75.624

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The angular distributions of the decay Lambda(c)(+) --> Lambda e(+)nu(e) have been studied using the CLEO II detector. By performing a three-dimensional maximum likelihood fit, the form factor ratio R = f(2)/f(1) is determined to be -0.25 +/- 0.14 +/- 0.08. The decay asymmetry parameter of the Lambda(c) averaged over q(2) is calculated to be alpha(Lambda c) = -0.82(-0.06-0.03)(+0.09+0.06) .

引用

页码：624 / 628

页数：5

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