Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Lifetime difference and CP-violating phase in the B0s system}.
AU - Abazov, V. M.
AU - Bertram, Iain
AU - Borissov, Guennadi
AU - Fox, Harald
AU - Ratoff, Peter
AU - Sopczak, Andre
PY - 2007/3/21
Y1 - 2007/3/21
N2 - From an analysis of the decay BJ/, we obtain the width difference between the light and heavy mass eigenstates (L-H)=0.17±0.09(stat)±0.02(syst) ps-1 and the CP-violating phase s=-0.79±0.56(stat)(syst). Under the hypothesis of no CP violation (s0), we obtain 1/= (B)=1.52±0.08(stat)(syst) ps and =0.12(stat)±0.02(syst) ps-1. The data sample corresponds to an integrated luminosity of about 1.1 fb-1 accumulated with the D0 detector at the Fermilab Tevatron collider. This is the first direct measurement of the CP-violating mixing phase in the B system.
AB - From an analysis of the decay BJ/, we obtain the width difference between the light and heavy mass eigenstates (L-H)=0.17±0.09(stat)±0.02(syst) ps-1 and the CP-violating phase s=-0.79±0.56(stat)(syst). Under the hypothesis of no CP violation (s0), we obtain 1/= (B)=1.52±0.08(stat)(syst) ps and =0.12(stat)±0.02(syst) ps-1. The data sample corresponds to an integrated luminosity of about 1.1 fb-1 accumulated with the D0 detector at the Fermilab Tevatron collider. This is the first direct measurement of the CP-violating mixing phase in the B system.
U2 - 10.1103/PhysRevLett.98.121801
DO - 10.1103/PhysRevLett.98.121801
M3 - Journal article
VL - 98
SP - 121801
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
ER -