The B-s(0)-(B) over bar (0)(s) oscillation frequency Delta m(s) is measured with 36 pb(-1) of data collected in pp collisions at = 7 TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381 B-s(0) -> D-s(-) pi(+) and B-s(0) -> D-s(-) pi(+)pi(-)pi(+) signal decays are reconstructed, with average decay time resolutions of 44 fs and 36 fs, respectively. An oscillation signal with a statistical significance of 4.6 sigma is observed. The measured oscillation frequency is Delta m(s) = 17.63 +/- 0.11 (stat) +/-0.02 (syst)ps(-1) (C) 2012 CERN. Published by Elsevier B.V. All rights reserved. RI Galli, Domenico/A-1606-2012; Eklund, Lars/C-7709-2012; Carbone, Angelo/C-8289-2012; Coca, Cornelia/B-6015-2012; Soler, Paul/E-8464-2011; Leflat, Alexander/D-7284-2012; Petrolini, Alessandro/H-3782-2011; Sarti, Alessio/I-2833-2012; de Paula, Leandro/I-9278-2012; manca, giulia/I-9264-2012; Patrignani, Claudia/C-5223-2009; Marconi, Umberto/J-2263-2012; Cardini, Alessandro/J-5736-2012; Teodorescu, Eliza/K-3044-2012

Measurement of the B-s(0)-(B)over-bar(s)(0) oscillation frequency Delta m(s) in B-s(0) -> D-s(-)(3)pi decays

Dettori F;Lai A;MANCA, GIULIA;OLDEMAN, RUDOLF GERHARD CHRISTIAAN;SAITTA, BIAGIO;
2012-01-01

Abstract

The B-s(0)-(B) over bar (0)(s) oscillation frequency Delta m(s) is measured with 36 pb(-1) of data collected in pp collisions at = 7 TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381 B-s(0) -> D-s(-) pi(+) and B-s(0) -> D-s(-) pi(+)pi(-)pi(+) signal decays are reconstructed, with average decay time resolutions of 44 fs and 36 fs, respectively. An oscillation signal with a statistical significance of 4.6 sigma is observed. The measured oscillation frequency is Delta m(s) = 17.63 +/- 0.11 (stat) +/-0.02 (syst)ps(-1) (C) 2012 CERN. Published by Elsevier B.V. All rights reserved. RI Galli, Domenico/A-1606-2012; Eklund, Lars/C-7709-2012; Carbone, Angelo/C-8289-2012; Coca, Cornelia/B-6015-2012; Soler, Paul/E-8464-2011; Leflat, Alexander/D-7284-2012; Petrolini, Alessandro/H-3782-2011; Sarti, Alessio/I-2833-2012; de Paula, Leandro/I-9278-2012; manca, giulia/I-9264-2012; Patrignani, Claudia/C-5223-2009; Marconi, Umberto/J-2263-2012; Cardini, Alessandro/J-5736-2012; Teodorescu, Eliza/K-3044-2012
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/90122
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