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EP Preprints

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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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2017-04-26
07:45
Observation of the $B^+ \to D^{*-}K^+\pi^+$ decay / LHCb Collaboration
The $B^+ \to D^{*-}K^+\pi^+$ decay potentially provides an excellent way to investigate charm meson spectroscopy. [...]
CERN-EP-2017-064 ; LHCB-PAPER-2017-006 ; arXiv:1704.07581. - 2017. - 9 p.
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2017-04-05
12:25
Measurement of $\pi^{-}p$ elastic scattering in the Coulomb interference region at 100 GeV/c and 140 GeVc : preliminary results / Burq, J P ; Chemarin, M ; Chevallier, M ; Denisov, A S ; Ekelöf, T J C ; Grafström, P ; Hagberg, E ; Ille, B ; Kashchuk, A P ; Korolev, G A et al.
1980. - 4 p.
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