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Measurement of V 0 production ratios in pp collisions at ps = 0.9 and 7TeV
(, , 2011-08-08)
The Λ¯/Λ and Λ¯/K0S production ratios are measured by the LHCb detector from 0.3 nb−1 of pp collisions delivered by the LHC at s√=0.9 TeV and 1.8 nb−1 at s√=7 TeV. Both ratios are presented as a function ...
Measurement of theB± production cross-section in pp collisions at √s= 7TeV
(, , 2012-04-19)
The production of B ± mesons in proton-proton collisions at s√ = 7 TeV is studied using 35 pb−1 of data collected by the LHCb detector. The B ± mesons are reconstructed exclusively in the B ± → J/ψK ± ...
Observation of Excited Λ0b Baryons
(, , 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 σ(pp → bb X) at √s = 7 TeV in the forward region
(, , 2010-11-08)
Decays of b hadrons into final states containing a D0 meson and a muon are used to measure the bb
production cross-section in proton–proton collisions at a centre-of-mass energy of 7 TeV at the LHC.
In ...
Measurement of ψ(2S) meson production in pp collisions at s√=7 TeV
(, , 2012-08)
The differential cross-section for the inclusive
production of ψ(2S) mesons in pp collisions at √s = 7 TeV
has been measured with the LHCb detector. The data sample corresponds to an integrated luminosity ...
Search for long-lived particles decaying to jet pairs
(, , 2015-04-17)
A search is presented for long-lived particles with a mass between 25 and 50 GeV/c2 and a lifetime between 1 and 200ps in a sample of proton–proton collisions at a centre-of-mass energy of s√=7 TeV, ...
Forward production of Υ mesons in pp collisions at s√=7 and 8 TeV
(, , 2015-11-16)
The production of Υ mesons in pp collisions at s√=7 and 8 TeV is studied with the LHCb detector using data samples corresponding to an integrated luminosity of 1 fb−1 and 2 fb−1 respectively. The ...
Measurement of the forward Z boson production cross-section in pp collisions at s√=7 TeV
(, , 2015-08-10)
A measurement of the production cross-section for Z bosons that decay to muons is presented. The data were recorded by the LHCb detector during pp collisions at a centre-of-mass energy of 7 TeV, and ...
First measurement of time-dependent CP violation in B0s→K+K− decays
(, , 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 ...
Measurement of ϒ production in pp collisions at √ s = 2.76 TeV
(, , 2014-04-29)
The production of Υ(1S), Υ(2S) and Υ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3pb−1 collected ...