Measurement of the B [ + over c ] meson lifetime using
نویسندگان
چکیده
The lifetime of the B+ c meson is measured using semileptonic decays having a J/ψ meson and a muon in the final state. The data, corresponding to an integrated luminosity of 2 fb−1, are collected by the LHCb detector in pp collisions at a centre-of-mass energy of 8 TeV. The measured lifetime is τ = 509± 8± 12 fs, where the first uncertainty is statistical and the second is systematic.
منابع مشابه
Measurement of the B [ + over c ] meson lifetime using B [ + over c
The lifetime of the B+ c meson is measured using semileptonic decays having a J/ψ meson and a muon in the final state. The data, corresponding to an integrated luminosity of 2 fb−1, are collected by the LHCb detector in pp collisions at a centre-of-mass energy of 8 TeV. The measured lifetime is τ = 509± 8± 12 fs, where the first uncertainty is statistical and the second is systematic.
متن کاملMeson B fragmentation function with consideration of mass corrections
Study of B meson (meson with the bottom quark flavor) in Large Hadron Collider (LHC) is of special importance so that the detector LHCb is devoted to investigate these types of mesons. For this reason, in this paper we will study the production process of this meson in a phenomenological approach using the experimental data from electron-positron annihilation. In this regards, we shall calculat...
متن کاملMeasurement of the lifetime of the Bc+ meson using the Bc+→J/ψπ+ decay mode
Article history: Received 26 November 2014 Received in revised form 19 December 2014 Accepted 9 January 2015 Available online 13 January 2015 Editor: M. Doser The difference in total widths between the B+c and B+ mesons is measured using a data sample corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment in 7 and 8 TeV centre-of-mass energy proton–proton collisi...
متن کاملMeasurement of Bc Mass and Lifetime at LHCb
The potential of measuring the B + c mass and lifetime in LHCb using B + c → J/ψπ + channel is studied. With an integrated luminosity of 1 fb −1 collected at √ s = 14 TeV in LHCb nominal condition, 310 events are expected with B/S less than 2. The statistical errors for mass and lifetime measurement are around 2 MeV/c 2 and 30 fs respectively. LHCb is a forward detector dedicated to precise b p...
متن کاملEffects of final state interaction in B^+_c to D^0 K^+ decay
In this paper, the decay of Bc+ meson, which consists of two b and c heavy quarks, into the Do and K+ mesons was studied. Given that the experimental branching ratio for this decay was within the range of 3.75*10-5 to 11.16*10-5; it was decided to calculate the theoretical branching ratio by applying the final state interaction (FSI) through the T and cross-section channels. In this process, b...
متن کامل