T. AALTONEN; V. M. ABAZOV; B. ABBOTT; M. ABOLINS; B. S. ACHARYA; M. ADAMS; T. ADAMS; J. ADELMAN; E. AGUILO; G. D. ALEXEEV; G. ALKHAZOV; A. ALTON; B. ALVAREZ GONZALEZ; G. ALVERSON; G. A. ALVES; S. AMERIO; D. AMIDEI; A. ANASTASSOV; L. S. ANCU; A. ANNOVI; J. ANTOS; M. AOKI; G. APOLLINARI; J. APPEL; A. APRESYAN; T. ARISAWA; Y. ARNOUD; M. AROV; A. ARTIKOV; J. ASAADI; W. ASHMANSKAS; A. ASKEW; B. ÅSMAN; O. ATRAMENTOV; A. ATTAL; A. AURISANO; C. AVILA; F. AZFAR; J. BACKUSMAYES; F. BADAUD; W. BADGETT; L. BAGBY; B. BALDIN; D. V. BANDURIN; S. BANERJEE; A. BARBARO-GALTIERI; E. BARBERIS; A.F. BARFUSS; P. BARINGER; V. E. BARNES; B. A. BARNETT; J. BARRETO; P. BARRIA; J. F. BARTLETT; P. BARTOS; U. BASSLER; D. BAUER; G. BAUER; S. BEALE; A. BEAN; P.H. BEAUCHEMIN; F. BEDESCHI; D. BEECHER; M. BEGALLI; M. BEGEL; S. BEHARI; C. BELANGER-CHAMPAGNE; L. BELLANTONI; G. BELLETTINI; J. BELLINGER; J. A. BENITEZ; D. BENJAMIN; A. BERETVAS; S. B. BERI; G. BERNARDI; R. BERNHARD; I. BERTRAM; M. BESANÇON; R. BEUSELINCK; V. A. BEZZUBOV; P. C. BHAT; V. BHATNAGAR; A. BHATTI; M. BINKLEY; D. BISELLO; I. BIZJAK; R. E. BLAIR; G. BLAZEY; S. BLESSING; C. BLOCKER; K. BLOOM; B. BLUMENFELD; A. BOCCI; A. BODEK; A. BOEHNLEIN; V. BOISVERT; D. BOLINE; T. A. BOLTON; E. E. BOOS; G. BORISSOV
Publication Year:
2012
Collection:
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
Subject Terms:
TEVATRON; CDF; CP VIOLATION
Description:
We report a measurement of the difference (ΔACP) between time-integrated CP-violating asymmetries in D0→K+K- and D0→π+π- decays reconstructed in the full data set of proton-antiproton collisions collected by the Collider Detector at Fermilab, corresponding to 9.7 fb-1 of integrated luminosity. The strong decay D*+→D0π+ is used to identify the charm meson at production as D0 or D̅ 0. We measure ΔACP=[-0.62±0.21(stat)±0.10(syst)]%, which differs from zero by 2.7 Gaussian standard deviations. This result supports similar evidence for CP violation in charm-quark decays obtained in proton-proton collisions.