Browsing FP-Artigos by Title
Now showing items 324-343 of 410
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Scaling properties of inclusive W ± production at hadron colliders
(Springer, 2016-04-18)We consider the hadroproduction of W gauge bosons in their leptonic decay mode. Starting from the leading-order expressions, we show that by defining a suitable scaling variable the centre-of-mass dependence of the cross ... -
Search for a dimuon resonance in the ϒ mass region
(Springer, 2018)A search is performed for a spin-0 boson, ϕ, produced in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, using prompt ϕ → μ+μ− decays and a data sample corresponding to an integrated luminosity of ... -
Search for B+c decays to the ppπ+ final state
(Elsevier, 2016)A search for the decays of the B+cmeson to p¯ pπ+is performed for the first time using a data sample corresponding to an integrated luminosity of 3.0fb−1collected by the LHCbexperiment in ppcollisions at centre-of-mass ... -
Search for beautiful tetraquarks in the ϒ(1S)μ+μ− invariant-mass spectrum
(Springer, 2018)The ϒ(1S)μ+μ− invariant-mass distribution is investigated for a possible exotic meson state composed of two b quarks and two b¯ quarks, Xbb¯bb¯. The analysis is based on a data sample of pp collisions recorded with the ... -
Search for collectivity with azimuthal J/ψ-hadron correlations in high multiplicity p–Pb collisions at √sNN=5.02 and 8.16 TeV
(Elsevier, 2018)We present a measurement of azimuthal correlations between inclusive J/ψand charged hadrons in p–Pbcollisions recorded with the ALICE detector at the CERN LHC. The J/ψare reconstructed at forward (p-going, 2.03 <y <3.53) ... -
Search for CP violation in D0→π−π+π0 decays with the energy test
(Elsevier, 2015)A search for time-integrated CPviolation in the Cabibbo-suppressed decay D0→π−π+π0is performed using for the first time an unbinned model-independent technique known as the energy test. Using proton–proton collision data, ... -
Search for CP violation in D± → K 0S K ± and D±s → K 0S π ± decays
(Springer, 2014)A search for CP violation in Cabibbo-suppressed D ± → K 0S K ± and D ±s → K 0S π ± decays is performed using pp collision data, corresponding to an integrated luminosity of 3 fb, recorded by the LHCb experiment. The ... -
Search for CP violation in the decay D+→π−π+π+
(Elsevier, 2014)A search for CP violation in the phase space of the decay D+→π−π+π+ is reported using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected by the LHCb experiment at a centreof- mass energy ... -
Search for CP violation in the phase space of D0→π+π−π+π−decays
(Elsevier, 2017)A search for time-integrated CPviolation in the Cabibbo-suppressed decay D0→π+π−π+π−is performed using an unbinned, model-independent technique known as the energy test. This is the first application of the energy test in ... -
Search for CP violation using T-odd correlations in D 0 → K + K −π+π− decays
(Springer, 2014)A search for CP violation using T-odd correlations is performed using the four-body D 0 → K + K −π+π− decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb−1 and 2.0 ... -
Search for CP violation using triple product asymmetries in Λ 0b → pK−π+π−, Λ 0b → pK−K+K− and Ξ 0b → pK−K−π+ decays
(Springer, 2018)A search for CP and P violation using triple-product asymmetries is performed with Λ 0b → pK−π+π−, Λ 0b → pK−K+K− and Ξ 0b → pK−K−π+ decays. The data sample corresponds to integrated luminosities of 1.0 fb−1 and 2.0 fb−1, ... -
Search for CPviolation in Λ0b→pK−and Λ0b→pπ−decays
(Elsevier, 2018)A search for CPviolation in Λ0b→pK−and Λ0b→pπ−decays is presented using a sample of ppcollisions collected with the LHCb detector and corresponding to an integrated luminosity of 3.0fb−1. The CP-violating asymmetries are ... -
Search for decays of neutral beauty mesons into four muons
(Springer, 2017)A search for the non-resonant decays B 0s → μ + μ − μ + μ − and B 0 → μ + μ − μ + μ − is presented. The measurement is performed using the full Run 1 data set collected in proton-proton collisions by the LHCb experiment ... -
Search for Higgs-like bosons decaying into long-lived exotic particles
(Springer, 2016)A search is presented for massive long-lived particles, in the 20–60 GeV/c2 mass range with lifetimes between 5 and 100 ps. The dataset used corresponds to 0.62 fb −1 of proton-proton collision data collected by the LHCb ... -
Search for lepton-flavour-violating decays of Higgs-like bosons
(Springer, 2018)Asearch is presented for a Higgs-like boson with mass in the range 45 to 195 GeV/c2 decaying into a muon and a tau lepton. The dataset consists of proton-proton interactions at a centre-of-mass energy of 8 TeV, collected ... -
Search for long-lived heavy charged particles using a ring imaging Cherenkov technique at LHCb
(Springer, 2015)A search is performed for heavy long-lived charged particles using 3.0 fb−1 of proton–proton collisions collected at √s = 7 and 8 TeV with the LHCb detector. The search is mainly based on the response of the ring imaging ... -
Search for long-lived particles decaying to jet pairs
(Springer, 2015)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, corresponding to an ... -
Search for the decay B0s→D¯0f0 (980)
(Springer, 2015)A search for B0s→D¯0f0(980) decays is performed using 3.0 fb1− of pp collision data recorded by the LHCb experiment during 2011 and 2012. The f0(980) meson is reconstructed through its decay to the π+π− final state in the ... -
Search for the decay D0→π+π−μ+μ−
(Elsevier, 2014)A search for the D0→π+π−μ+μ− decay, where the muon pair does not originate from a resonance, is performed using proton–proton collision data corresponding to an integrated luminosity of 1.0 fb−1 recorded by the LHCb ... -
Search for the lepton flavour violating decay τ − → μ − μ + μ −
(Springer, 2015)A search for the lepton flavour violating decay τ − → μ − μ + μ − is performed with the LHCb experiment. The data sample corresponds to an integrated luminosity of 1.0 fb−1 of proton-proton collisions at a centre-of-mass ...