SEARCH FOR CP VIOLATION IN CHARGED D-MESON DECAYS

Authors
AITALA EM AMATO S ANJOS JC APPEL JA ASHERY D BANERJEE S BEDIAGA I BLAYLOCK G BRACKER SB BURCHAT PR BURNSTEIN RA CARTER T CARVALHO HS COPTY NK CREMALDI LM DARLING C DENISENKO K FERNANDEZ A GAGNON P GOBEL C GOUNDER K HALLING AM HERRERA G HURVITS G JAMES C KASPER PA KWAN S LANGS DC LESLIE J LUNDBERG B MAYTALBECK S MEADOWS B NETO JRTD MILBURN RH DEMIRANDA JM NAPIER A NGUYEN A DOLIVEIRA AB OSHAUGHNESSY K PENG KC PERERA LP PUROHIT MV QUINN B RADEZTSKY S RAFATIAN A REAY NW REIDY JJ DOSREIS AC RUBIN HA SANTHA AKS SANTORO AS SCHWARTZ AJ SHEAFF M SIDWELL RA SLAUGHTER AJ SOKOLOFF MD STANTON NR STENSON K SUMMERS DJ TAKACH S THORNE K TRIPATHI AK WATANABE S WEISSBABAI R WIENER J WITCHEY N WOLIN E YI D YOSHIDA S ZALIZNYAK R ZHANG C
Citation
Em. Aitala et al., SEARCH FOR CP VIOLATION IN CHARGED D-MESON DECAYS, Physics letters. Section B, 403(3-4), 1997, pp. 377-382
Citations number
19
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
403
Issue
3-4
Year of publication
1997
Pages
377 - 382
Database
ISI
SICI code
0370-2693(1997)403:3-4<377:SFCVIC>2.0.ZU;2-I
Abstract
We report results of a search for CP violation in the singly Cabibbo-s uppressed decays D+ --> K(-)K(+)pi(+), phi pi(+), (K) over bar(892)K-0 (+), and pi(-)pi(+)pi(+) based on data from the charm hadroproduction experiment E791 at Fermilab. We search for a difference in the D+ and D- decay rates for each of the final states. No evidence for a differe nce is seen. The decay rate asymmetry parameters (ACP), defined as the difference in the D+ and D- decay rates divided by the sum of the dec ay rates, are measured to be: A(CP)(KK pi) = -0.014+/-0.029, A(CP) (ph i pi) = -0.028+/-0.036, A(CP) (K(892)K) = -0.010+/-0.050, and A(CP)(7 pi pi pi) = -0.017+/-0.042. (C) 1997 Published by Elsevier Science B. V.