EXPERIMENTAL PROBES OF FINAL-STATE INTERACTIONS IN D0-MESON DECAYS

被引：2

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

ROSS, WR

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] CTR BRASILERO PESQUISAS FIS,BR-22290 RIO DE JANEIRO,BRAZIL

[3] UNIV CINCINNATI,CINCINNATI,OH 45221

[4] UNIV COLORADO,BOULDER,CO 80309

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

[6] UNIV MISSISSIPPI,UNIVERSITY,MS 38677

[7] NATL RES COUNCIL,OTTAWA K1S 5B6,ONTARIO,CANADA

[8] PRINCETON UNIV,PRINCETON,NJ 08544

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

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

[11] YALE UNIV,NEW HAVEN,CT 06511

来源：

PHYSICAL REVIEW D | 1992年 / 46卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.46.R1

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 the branching ratio for the decay D0-->K0-pi-0BAR to be (5.0+/-0.8+/-0.9)%. We see no evidence for the decay D0-->K0K0BAR and set a 90% confidence level upper limit of 0.12%. The large K0-pi-0BAR branching ratio (relative to K-pi+) indicates either a lack of color suppression or significant elastic final-state interactions. The upper limit on the K0K0BAR mode indicates that final-state interactions mix final states such as K+K- or pi+pi- into the K0K0BAR less than 27% of the time at the 90% confidence level.

引用

页码：R1 / R5

页数：5

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