MEASUREMENT OF THE D-S(+)-]ETA-L(+)NU AND D-S(+)-]ETA'L(+)NU BRANCHING RATIOS

被引：23

作者：

BRANDENBURG, G

CINABRO, D

LIU, T

SAULNIER, M

WILSON, R

YAMAMOTO, H

BERGFELD, T

EISENSTEIN, BI

ERNST, J

GLADDING, GE

GOLLIN, GD

PALMER, M

SELEN, M

THALER, JJ

EDWARDS, KW

MCLEAN, KW

OGG, M

BELLERIVE, A

BRITTON, DI

HYATT, ERF

JANICEK, R

MACFARLANE, DB

PATEL, PM

SPAAN, B

SADOFF, AJ

AMMAR, R

BARINGER, P

BEAN, A

BESSON, D

COPPAGE, D

COPTY, N

DAVIS, R

HANCOCK, N

KOTOV, S

KRAVCHENKO, I

KWAK, N

KUBOTA, Y

LATTERY, M

MOMAYEZI, M

NELSON, JK

PATTON, S

POLING, R

SAVINOV, V

SCHRENK, S

WANG, R

ALAM, MS

KIM, IJ

LING, Z

MAHMOOD, AH

ONEILL, JJ

机构：

[1] UNIV ILLINOIS,CHAMPAIGN,IL 61801

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

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

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

[5] ITHACA COLL,ITHACA,NY 14850

[6] UNIV KANSAS,LAWRENCE,KS 66045

[7] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

[8] SUNY ALBANY,ALBANY,NY 12222

[9] OHIO STATE UNIV,COLUMBUS,OH 43210

[10] UNIV OKLAHOMA,NORMAN,OK 73019

[11] PURDUE UNIV,W LAFAYETTE,IN 47907

[12] UNIV ROCHESTER,ROCHESTER,NY 14627

[13] SO METHODIST UNIV,DALLAS,TX 75275

[14] SYRACUSE UNIV,SYRACUSE,NY 13244

[15] VANDERBILT UNIV,NASHVILLE,TN 37235

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

[17] CALTECH,PASADENA,CA 91125

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

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

[20] UNIV COLORADO,BOULDER,CO 80309

[21] CORNELL UNIV,ITHACA,NY 14853

[22] UNIV FLORIDA,GAINESVILLE,FL 32611

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.75.3804

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the CLEO II detector we measure B(D-s(+) --> eta e(+)nu)/B(D-s(+) --> phi e(+)nu) = 1.24 +/- 0.12 +/- 0.15, B(D-s(+) --> eta'e(+)nu)/B(D-s(+) --> phi e(+)nu) = 0.43 +/- 0.11 +/- 0.07, and B(D-s(+) --> eta'e(+)nu)/B(D-s(+) --> eta e(+)nu) = 0.35 +/- 0.09 +/- 0.07. We find the ratio of vector to pseudoscalar final states, B(D-s(+) --> phi e(+)nu)/B(D-s(+) --> (eta + eta')e(+)nu) = 0.60 +/- 0.06 +/- 0.06, which is similar to the ratio found in nonstrange D decays.

引用

页码：3804 / 3808

页数：5

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