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Now showing items 31-40 of 302
Measurement of CP Violation in B0→J/ψK0S Decays
(American Physical Society, 2015-07-14)
Measurements are presented of the CP violation observables S and C in the decays of B0 and ¯B0 mesons to the J/ψK0S final state. The data sample corresponds to an integrated luminosity of 3.0 fb−1 ...
Measurement of CP observables in B 0 → DK ∗0 with D →K + K −
(Springer, 2013-03-12)
The decay B 0 → DK *0 and the charge conjugate mode are studied using 1.0 fb−1 of pp collision data collected by the LHCb experiment at s√=7 TeV in 2011. The CP asymmetry between the B 0 → DK *0 and the ...
Prompt Kshort production in pp collisions at sqrt(s)=0.9 TeV
(Elsevier, 2010-09-27)
The production of K_short mesons in pp collisions at a centre-of-mass energy of 0.9 TeV is studied with the LHCb detector at the Large Hadron Collider. The luminosity of the analysed sample is determined ...
Determination of quantum numbers for several excited charmed mesons observed in B−→D*+π−π− decays
(American Physical Society, 2020-01)
A four-body amplitude analysis of the B−→D*+π−π− decay is performed, where fractions and relative phases of the various resonances contributing to the decay are measured. Several quasi-model-independent ...
Observation of Excited Λ0b Baryons
(American Physical Society, 2012-10-26)
Using pp collision data corresponding to 1.0 fb−1 integrated luminosity collected by the LHCb detector, two narrow states are observed in the Λ0bπ+π− spectrum with masses 5911.97±0.12(stat)±0.02(syst ...
Measurement of the Ratio of Branching Fractions B(¯B0→D*+τ−¯ντ)/B(¯B0→D*+μ−¯νμ)
(American Physical Society, 2015-09-09)
The branching fraction ratio R(D∗)≡B(¯B0→D*+τ−¯ντ)/B(¯B0→D*+μ−¯νμ) is measured using a sample of proton-proton collision data corresponding to 3.0 fb−1 of integrated luminosity recorded by the LHCb ...
First evidence of direct CP violation in charmless two-body decays of B0s mesons
(American Physical Society, 2012-05-16)
Using a data sample corresponding to an integrated luminosity of 0.35 fb−1 collected by LHCb in 2011, we report the first evidence of CP violation in the decays of B0s mesons to K±π∓ pairs, ...
Measurement of forward J/ψ production cross-sections in pp collisions at s√=13 TeV
(Springer, 2015-10-26)
The production of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of s√=13 TeV is studied with the LHCb detector. Cross-section measurements are performed as a function of the transverse ...
First measurement of time-dependent CP violation in B0s→K+K− decays
(Springer, 2013-10-25)
Direct and mixing-induced CP-violating asymmetries in B0s→K+K− decays are measured for the first time using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0 fb−1, collected ...
Search for the Λ 0b → Λη ′ and Λ 0b → Λη decays with the LHCb detector
(Springer, 2015-09-01)
A search is performed for the as yet unobserved baryonic Λ 0b → Λη ′ and Λ 0b → Λη decays with 3 fb−1 of proton-proton collision data recorded by the LHCb experiment. The B0 → K 0s η ′ decay is used ...