1ST MEASUREMENT OF GAMMA(D(S)(+)-]MU+NU)/GAMMA(D(S)(+)-]PHI-PI+)

被引:42
作者
ACOSTA, D
ATHANAS, M
MASEK, G
PAAR, H
BEAN, A
GRONBERG, J
KUTSCHKE, R
MENARY, S
MORRISON, RJ
NAKANISHI, S
NELSON, HN
NELSON, TK
RICHMAN, JD
RYD, A
TAJIMA, H
SCHMIDT, D
SPERKA, D
WITHERELL, MS
PROCARIO, M
YANG, S
BALEST, R
CHO, K
DAOUDI, M
FORD, WT
JOHNSON, DR
LINGEL, K
LOHNER, M
RANKIN, P
SMITH, JG
ALEXANDER, JP
BEBEK, C
BERKELMAN, K
BESSON, D
BROWDER, TE
CASSEL, DG
CHO, HA
COFFMAN, DM
DRELL, PS
EHRLICH, R
GALIK, RS
GARCIASCIVERES, M
GEISER, B
GITTELMAN, B
GRAY, SW
HARTILL, DL
HELTSLEY, BK
JONES, CD
JONES, SL
KANDASWAMY, J
KATAYAMA, N
机构
[1] UNIV CALIF SANTA BARBARA, SANTA BARBARA, CA 93106 USA
[2] CARNEGIE MELLON UNIV, PITTSBURGH, PA 15213 USA
[3] UNIV COLORADO, BOULDER, CO 80309 USA
[4] CORNELL UNIV, ITHACA, NY 14853 USA
[5] UNIV FLORIDA, GAINESVILLE, FL 32611 USA
[6] HARVARD UNIV, CAMBRIDGE, MA 02138 USA
[7] UNIV ILLINOIS, URBANA, IL 61801 USA
[8] ITHACA COLL, ITHACA, NY 14850 USA
[9] UNIV KANSAS, LAWRENCE, KS 66045 USA
[10] UNIV MINNESOTA, MINNEAPOLIS, MN 55455 USA
[11] SUNY ALBANY, ALBANY, NY 12222 USA
[12] OHIO STATE UNIV, COLUMBUS, OH 43210 USA
[13] UNIV OKLAHOMA, NORMAN, OK 73019 USA
[14] PURDUE UNIV, W LAFAYETTE, IN 47907 USA
[15] UNIV ROCHESTER, ROCHESTER, NY 14627 USA
[16] SO METHODIST UNIV, DALLAS, TX 75275 USA
[17] VANDERBILT UNIV, NASHVILLE, TN 37235 USA
[18] SYRACUSE UNIV, SYRACUSE, NY 13244 USA
[19] CALTECH, PASADENA, CA 91125 USA
[20] INP, NOVOSIBIRSK, RUSSIA
[21] CARLETON UNIV, OTTAWA K1S 5B6, ONTARIO, CANADA
关键词
D O I
10.1103/PhysRevD.49.5690
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a measurement of GAMMA(D(s)+ --> mu+nu)/GAMMA(D(s)+ --> phipi+) = 0.245 +/- 0.052 +/- 0.074. Using this ratio and B(D(s)+ --> phipi+)=(3.7 +/- 0.9)% we extract f(Ds)=344 +/- 37 +/- 52 +/-42 MeV, where the last error is due to the uncertainty in the D(s)+ --> phipi+ absolute branching ratio. This result is larger than most theoretical predictions.
引用
收藏
页码:5690 / 5700
页数:11
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