TY - JOUR
T1 - Measurement of CP asymmetries in two-body B (s)0 -meson decays to charged pions and kaons
AU - LHCb Collaboration
AU - Aaij, R.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Albicocco, P.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Alfonso Albero, A.
AU - Ali, S.
AU - Alkhazov, G.
AU - Alvarez Cartelle, P.
AU - Alves, A. A.
AU - Amato, S.
AU - Amerio, S.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Andreassi, G.
AU - Andreotti, M.
AU - Andrews, J. E.
AU - Appleby, R. B.
AU - Archilli, F.
AU - D'Argent, P.
AU - Arnau Romeu, J.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Atzeni, M.
AU - Auriemma, G.
AU - Bachmann, S.
AU - Back, J. J.
AU - Baker, S.
AU - Balagura, V.
AU - Baldini, W.
AU - Baranov, A.
AU - Barlow, R. J.
AU - Barsuk, S.
AU - Bifani, S.
AU - Calladine, R.
AU - Chatzikonstantinidis, G.
AU - Farley, N.
AU - Ilten, P.
AU - Lazzeroni, C.
AU - Mazurov, A.
AU - Sergi, A.
AU - Watson, N. K.
AU - Williams, T.
AU - Zarebski, K. A.
PY - 2018/8/10
Y1 - 2018/8/10
N2 - The time-dependent CP asymmetries in B0→π+π- and Bs0→K+K- decays are measured using a data sample of p p collisions corresponding to an integrated luminosity of 3.0 fb-1, collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The same data sample is used to measure the time-integrated CP asymmetries in B0→K+π- and Bs0→π+K- decays. The results are Cπ+π-=-0.34±0.06±0.01, Sπ+π-=-0.63±0.05±0.01, CK+K-=0.20±0.06±0.02, SK+K-=0.18±0.06±0.02, AK+K-ΔΓ=-0.79±0.07±0.10, ACPB0=-0.084±0.004±0.003, and ACPBs0=0.213±0.015±0.007, where the first uncertainties are statistical and the second systematic. Evidence for CP violation is found in the Bs0→K+K- decay for the first time.
AB - The time-dependent CP asymmetries in B0→π+π- and Bs0→K+K- decays are measured using a data sample of p p collisions corresponding to an integrated luminosity of 3.0 fb-1, collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The same data sample is used to measure the time-integrated CP asymmetries in B0→K+π- and Bs0→π+K- decays. The results are Cπ+π-=-0.34±0.06±0.01, Sπ+π-=-0.63±0.05±0.01, CK+K-=0.20±0.06±0.02, SK+K-=0.18±0.06±0.02, AK+K-ΔΓ=-0.79±0.07±0.10, ACPB0=-0.084±0.004±0.003, and ACPBs0=0.213±0.015±0.007, where the first uncertainties are statistical and the second systematic. Evidence for CP violation is found in the Bs0→K+K- decay for the first time.
UR - http://www.scopus.com/inward/record.url?scp=85052995382&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.98.032004
DO - 10.1103/PhysRevD.98.032004
M3 - Article
AN - SCOPUS:85052995382
SN - 1550-7998
VL - 98
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 3
M1 - 032004
ER -