We present a measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(ϕπ-)X decays in 1.3  fb-1 collected in pp̅ collisions at √s=1.96  TeV by the CDF II detector at the Fermilab Tevatron. We measure τ(Bs0)=1.518±0.041(stat)±0.027(syst)  ps. The ratio of this result and the world average B0 lifetime yields τ(Bs0)/τ(B0)=0.99±0.03, which is in agreement with recent theoretical predictions.
T. AALTONEN, B. ÁLVAREZ GONZÁLEZ, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2011). Measurement of the B(s)0 Lifetime in Fully and Partially Reconstructed B(s)0→Ds-(ϕπ-)X Decays in p̅ p Collisions at √s=1.96  TeV. PHYSICAL REVIEW LETTERS, 107, 272001-1-272001-7 [10.1103/PhysRevLett.107.272001].
Measurement of the B(s)0 Lifetime in Fully and Partially Reconstructed B(s)0→Ds-(ϕπ-)X Decays in p̅ p Collisions at √s=1.96 TeV
BRIGLIADORI, LUCA;CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MAZZANTI, PAOLO;MOGGI, NICCOLO';MUSSINI, MANUEL;RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2011
Abstract
We present a measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(ϕπ-)X decays in 1.3 fb-1 collected in pp̅ collisions at √s=1.96 TeV by the CDF II detector at the Fermilab Tevatron. We measure τ(Bs0)=1.518±0.041(stat)±0.027(syst) ps. The ratio of this result and the world average B0 lifetime yields τ(Bs0)/τ(B0)=0.99±0.03, which is in agreement with recent theoretical predictions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
