A measurement of the effective Bs0→to K+K− lifetime is presented using approximately 37 pb−1 of data collected by LHCb during 2010. This quantity can be used to put constraints on contributions from processes beyond the Standard Model in the Bs0→meson system and is determined by two complementary approaches as τKK=1.440±0.096 (stat)±0.008 (syst)±0.003 (model) ps.
Measurement of the effective Bs0→to K+K− lifetime
CARDINALE, ROBERTA;FONTANELLI, FLAVIO;PATRIGNANI, CLAUDIA;PETROLINI, ALESSANDRO;SANNINO, MARIO;
2012-01-01
Abstract
A measurement of the effective Bs0→to K+K− lifetime is presented using approximately 37 pb−1 of data collected by LHCb during 2010. This quantity can be used to put constraints on contributions from processes beyond the Standard Model in the Bs0→meson system and is determined by two complementary approaches as τKK=1.440±0.096 (stat)±0.008 (syst)±0.003 (model) ps.
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