# EP Preprints

Ultimi arrivi:
2017-06-24
09:59
 Prompt and nonprompt J/$\psi$ production and nuclear modification in $p$Pb collisions at $\sqrt{s_{\text{NN}}}= 8.16$ TeV / LHCb Collaboration The production of J/$\psi$ mesons is studied in proton-lead collisions at the centre-of-mass energy per nucleon pair $\sqrt{s_{\text{NN}}}=8.16$ TeV with the LHCb detector at the LHC. [...] arXiv:1706.07122 ; CERN-EP-2017-122 ; LHCB-PAPER-2017-014. - 2017. Full text - Fulltext - Related data files

2017-06-06
11:29
 Improved limit on the branching fraction of the rare decay $K^0_{\scriptscriptstyle S}\to\mu^+\mu^-$ / LHCb Collaboration A search for the decay $K^0_{\scriptscriptstyle S}\to\mu^+\mu^-$ is performed, based on a data sample of proton-proton collisions corresponding to an integrated luminosity of 3 fb$^{-1}$, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. [...] CERN-EP-2017-101-LHCB-PAPER-2017-009 ; arXiv:1706.00758 ; LHCB-PAPER-2017-009. - 2017. Fulltext - Related data file(s) - Full text

2017-05-22
14:16
 Updated search for long-lived particles decaying to jet pairs / LHCb Collaboration A search is presented for long-lived particles with a mass between 25 and 50 GeV/$c^2$ and a lifetime between 2 and 500 ps, using proton-proton collision data corresponding to an integrated luminosity of 2.0 fb$^{-1}$, collected by the LHCb detector at centre-of-mass energies of 7 and 8 TeV. [...] LHCB-PAPER-2016-065 ; CERN-EP-2017-083 ; arXiv:1705.07332 ; LHCB-PAPER-2016-065. - 2017. - 23 p. Fulltext - Related data file(s) - Full text

2017-05-18
14:39
 PAMPA. A Panel and menu management package / Carena, F ; Marin, J C ; Pape, L PROG-60 ; CERN-DELPHI-86-95-PROG-60. - 1986. - 28 p. Full text

2017-05-18
14:22
 CARGO. A hierarchical data - Base management system / Gopal, G P PROG-46 ; CERN-DELPHI-86-28-PROG-46. - 1986. - 76 p. Full text

2017-05-18
09:34
 Test of lepton universality with $B^{0} \rightarrow K^{*0}\ell^{+}\ell^{-}$ decays / LHCb Collaboration A test of lepton universality, performed by measuring the ratio of the branching fractions of the $B^{0} \rightarrow K^{*0}\mu^{+}\mu{^-}$ and $B^{0} \rightarrow K^{*0}e^{+}e{^-}$ decays, $R_{K^{*0}}$, is presented. [...] LHCB-PAPER-2017-013 ; CERN-EP-2017-100 ; arXiv:1705.05802 ; LHCB-PAPER-2017-013. - 2017. Fulltext - Related data file(s) - Full text

2017-05-12
10:56
 Measurement of $B^0_s$ and $D^-_s$ meson lifetimes / LHCb Collaboration We report on a measurement of the flavor-specific $B^{0}_{s}$ lifetime and of the $D^{-}_{s}$ lifetime using proton-proton collisions at center-of-mass energies of 7 and 8 TeV, collected by the LHCb experiment and corresponding to 3.0 fb$^{-1}$ of integrated luminosity. [...] CERN-EP-2017-070 ; LHCB-PAPER-2017-004 ; arXiv:1705.03475. - 2017. - 16 p. Fulltext - Related data file(s) - Supplementary material - Supplementary material (zip) - Full text - Fulltext

2017-05-02
11:15
 Resonances and $CP$ violation in $B^{0}_{s}$ and $\overline{B}{}^{0}_{s}\to J/\psi K^{+} K^{-}$ decays in the mass region above the $\phi(1020)$ / LHCb Collaboration The decays of $B^{0}_{s}$ and $\overline{B}{}^{0}_{s}$ mesons into the $J/\psi K^+K^-$ final state are studied in the $K^+K^-$ mass region above the $\phi(1020)$ meson in order to determine the resonant substructure and measure the $CP$-violating phase, $\phi_s$, the decay width, $\Gamma_s$, and the width difference between light and heavy mass eigenstates, $\Delta \Gamma_s$. [...] CERN-EP-2017-062 ; LHCB-PAPER-2017-008 ; arXiv:1704.08217 ; LHCB-PAPER-2017-008. - 2017. - 28 p. Fulltext - Previous draft version - Full text

2017-04-27
14:36
 Observation of charmless baryonic decays $B^0_{(s)} \to p \overline{p} h^+ h^{\prime-}$ / LHCb Collaboration Decays of $B^0$ and $B_{s}^0$ mesons to the charmless baryonic final states $p \overline{p} h^+ h^{\prime-}$, where $h$ and $h^\prime$ each denote a kaon or a pion, are searched for using the LHCb detector. [...] LHCB-PAPER-2017-005 ; CERN-EP-2017-052 ; arXiv:1704.08497 ; LHCB-PAPER-2017-005. - 2017. - 17 p. Fulltext - Previous draft version - Related data file(s) - Full text

2017-04-26
10:11
 Observation of the decays $\Lambda_b^0 \to \chi_{c1} p K^-$ and $\Lambda_b^0 \to \chi_{c2} p K^-$ / LHCb Collaboration The first observation of the decays $\Lambda_b^0 \to \chi_{c1} p K^-$ and $\Lambda_b^0 \to \chi_{c2} p K^-$ is reported using a data sample corresponding to an integrated luminosity of $3.0$ fb$^{-1}$, collected by the LHCb experiment in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV. [...] LHCB-PAPER-2017-011 ; CERN-EP-2017-073 ; arXiv:1704.07900 ; LHCB-PAPER-2017-011. - 2017. - 18 p. Fulltext - Previous draft version - Related data file(s) - Full text