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Now showing items 11-20 of 21
Measurement of CP Violation in the Decay B+→K+π0
(American Physical Society, 2021-03)
A measurement of CP violation in the decay B+→K+π0 is reported using data corresponding to an integrated luminosity of 5.4 fb−1 collected with the LHCb experiment at a center-of-mass energy of √s=13 TeV. ...
Measurement of the CKM angle γ and B0s-B¯¯¯¯0s mixing frequency with B0s→D∓sh±π±π∓ decays
(Springer, 2021-03)
The CKM angle γ is measured for the first time from mixing-induced CP violation between B0s→D∓sK±π±π∓ and B¯¯¯¯0s→D±sK∓π∓π± decays reconstructed in proton-proton collision data corresponding to an ...
Study of B0s → J/ψπ+π−K+K− decays
(Springer, 2021-02)
The decays B0s → J/ψπ+π−K+K− are studied using a data set corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of ...
First Observation of the Decay B0s→K−μ+νμ and a Measurement of |Vub|/|Vcb|
(American Physical Society, 2021-02)
The first observation of the suppressed semileptonic B0s→K−μ+νμ decay is reported. Using a data sample recorded in pp collisions in 2012 with the LHCb detector, corresponding to an integrated luminosity ...
Search for long-lived particles decaying to e ± μ∓ ν
(Springer, 2021-03)
Long-lived particles decaying to e±μ∓ν, with masses between 7 and 50GeV/c2 and lifetimes between 2 and 50ps, are searched for by looking at displaced vertices containing electrons and muons of opposite ...
Test of lepton universality with Λ0b→pK−ℓ+ℓ− decays
(Springer, 2020-04)
The ratio of branching fractions of the decays Λ0b → pK−e+e− and Λ0b → pK−μ+μ−, R−1pK, is measured for the first time using proton-proton collision data corresponding to an integrated luminosity of 4.7 ...
Searches for 25 rare and forbidden decays of D+ and D+s mesons
(Springer, 2021-06)
A search is performed for rare and forbidden charm decays of the form D+(s)→h±ℓ+ℓ(′)∓, where h± is a pion or kaon and ℓ(′)± is an electron or muon. The measurements are performed using proton-proton ...
Observation of the decay Λ0b → χc1pπ−
(Springer, 2021-05)
The Cabibbo-suppressed decay Λ0b → χc1pπ− is observed for the first time using data from proton-proton collisions corresponding to an integrated luminosity of 6 fb−1, collected with the LHCb detector ...
Precision measurement of the B+c meson mass
(Springer, 2020-07)
A precision measurement of the B+c meson mass is performed using proton- proton collision data collected with the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to a total ...
Observation of New Ξ0c Baryons Decaying to Λ+cK−
(American Physical Society, 2020-06)
The Λ+cK− mass spectrum is studied with a data sample of pp collisions at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.6 fb−1 collected by the LHCb experiment. Three ...