STUDY OF THE DOUBLY CABIBBO-SUPPRESSED DECAY D+ -]PHI-K+ AND THE SINGLY CABIBBO-SUPPRESSED DECAY D(S)+ -]PHI-K+

被引：9

作者：

ANJOS, JC

APPEL, JA

BEAN, A

BEDIAGA, I

BRACKER, SB

BROWDER, TE

CREMALDI, LM

DUBOSCQ, JE

ELLIOT, JR

ESCOBAR, CO

GIBNEY, MC

HARTNER, GF

KARCHIN, PE

KUMAR, BR

LIMA, JGR

LOSTY, MJ

LUSTE, GJ

MANTSCH, PM

MARTIN, JF

MCHUGH, S

MENARY, SR

MORRISON, RJ

NASH, T

PINFOLD, J

PUNKAR, G

PUROHIT, MV

ROSS, WR

SANTORO, AFS

SHOUP, AL

SLIWA, K

SOKOLOFF, MD

SOUZA, MHG

SPALDING, WJ

STREETMAN, ME

STUNDZIA, AB

WITHERELL, MS

机构：

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

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

[3] UNIV COLORADO,BOULDER,CO 80309

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

[5] NATL RES COUNCIL CANADA,OTTAWA K1A 0R6,ONTARIO,CANADA

[6] UNIV SAO PAULO,SAO PAULO,BRAZIL

[7] UNIV TORONTO,TORONTO M5S 1A7,ONTARIO,CANADA

[8] YALE UNIV,NEW HAVEN,CT 06511

[9] UNIV MISSISSIPPI,OXFORD,MS 38677

[10] PRINCETON UNIV,PRINCETON,NJ 08544

[11] UNIV CINCINNATI,CINCINNATI,OH 45221

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.69.2892

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have searched for the doubly Cabibbo-suppressed decay D+/- --> phiK+/- and the singly Cabibbo-suppressed decay D(s)+/- --> phiK+/- in data from the Fermilab photoproduction experiment E691. The D+/-decay mode is of particular interest because it cannot result from simple spectator decay. We observe a D+/- signal corresponding to a branching ratio of B(D+/- --> phiK+/-) = (3.3(-1.5)+1.8 +/- 0.8) x 10(-4). In the D(s)+/-mode we measure an upper limit B(D(s)+/- --> phiK+/-) < 0.2%.

引用

页码：2892 / 2895

页数：4

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