SOME CABIBBO-SUPPRESSED DECAYS OF THE D0 MESON

被引：9

作者：

ANJOS, JC

APPEL, JA

BEAN, A

BRACKER, SB

BROWDER, TE

CREMALDI, LM

DUBOSCQ, JE

ELLIOT, JR

ESCOBAR, CO

GIBNEY, MC

HARTNER, GF

KARCHIN, PE

KUMAR, BR

LOSTY, MJ

LUSTE, GJ

MANTSCH, PM

MARTIN, JF

MCHUGH, S

MENARY, SR

MORRISON, RJ

NASH, T

ONG, P

PINFOLD, J

PUNKAR, G

PUROHIT, MV

SANTORO, AFS

SHOUP, AL

SLIWA, K

SOKOLOFF, MD

SOUZA, MHG

SPALDING, WJ

STREETMAN, ME

STUNDZIA, AB

WITHERELL, MS

机构：

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

[2] UNIV CINCINNATI,CINCINNATI,OH 45221

[3] UNIV COLORADO,BOULDER,CO 80309

[4] CTR BRASILEIRO PESQUISAS FIS,BR-22290 RIO DE JANEIRO,BRAZIL

[5] UNIV SAO PAULO,BR-01498 SAO PAULO,BRAZIL

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

[7] YALE UNIV,NEW HAVEN,CT 06511

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

[9] UNIV MISSISSIPPI,UNIVERSITY,MS 38677

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

[11] PRINCETON UNIV,PRINCETON,NJ 08544

来源：

PHYSICAL REVIEW D | 1991年 / 43卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.43.R635

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using data from the Fermilab photoproduction experiment E691, we have measured branching ratios for the Cabibbo-suppressed decays D0 --> KBAR0K+ pi-, D0 --> K0K- pi+, D0 --> K-K+ pi-pi+, and D0 --> pi+ pi+ pi- pi-. The data show evidence for several quasi-two-body decays including D0 --> K*+K- and D0 --> KBAR*0K*0, but not D0 --> K*-K+. The relative rates of the charged decays indicates that final-state mesons containing virtual-W+ -decay quarks are more likely to emerge as vector mesons than are those containing the spectator quarks. The high rate observed for D0 --> KBAR*0K*0 indicates that hadronic final-state interactions play a measurable role in charm decays.

引用

页码：R635 / R640

页数：6

共 22 条

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