# EP Preprints

Posledne pridané:
2016-10-20
11:45
 Observation of the decay $B^0_s\to \phi\pi^+\pi^-$ and evidence for $B^0\to \phi\pi^+\pi^-$ The first observation of the rare decay $B^0_s\to\phi\pi^+\pi^-$ and evidence for $B^0\to\phi\pi^+\pi^-$ are reported, using $pp$ collision data recorded by the LHCb detector at centre-of-mass energies $\sqrt{s} = 7$ and 8 TeV, corresponding to an integrated luminosity of $3 {\rm fb}^{-1}$. [...] CERN-EP-2016-213 ; LHCB-PAPER-2016-028. - 2016. Fulltext - Previous draft version - Related data file(s)

2016-10-20
09:28
 New algorithms for identifying the flavour of $B^0$ mesons using pions and protons Two new algorithms for use in the analysis of $pp$ collision are developed to identify the flavour of $B^0$ mesons at production using pions and protons from the hadronization process [...] CERN-EP-2016-251 ; LHCB-PAPER-2016-039. - 2016. Fulltext - Previous draft version - Related data file(s)

2016-10-20
08:40
 New algorithms for identifying the flavour of $B^0$ mesons using pions and protons / LHCb collaboration Two new algorithms for use in the analysis of $pp$ collision are developed to identify the flavour of $B^0$ mesons at production using pions and protons from the hadronization process. [...] arXiv:1610.06019 ; LHCB-PAPER-2016-039 ; CERN-EP-2016-251. - 2016. Preprint - Full text

2016-10-18
08:01
 Observation of the decay $B^0_s \to \phi\pi^+\pi^-$ and evidence for $B^0 \to \phi\pi^+\pi^-$ / LHCb collaboration The first observation of the rare decay$B^0_s \to \phi\pi^+\pi^-$ and evidence for $B^0 \to \phi\pi^+\pi^-$ are reported, using $pp$ collision data recorded by the LHCb detector at centre-of-mass energies $\sqrt{s} = 7$ and 8~TeV, corresponding to an integrated luminosity of $3{\mbox{\,fb}^{-1}}$. [...] arXiv:1610.05187 ; CERN-EP-2016-213 LHCB-PAPER-2016-028. - 2016. Preprint - Full text

2016-10-13
08:18
 Determination of the event collision time with the ALICE detector at the LHC / ALICE Collaboration Particle identification is an important feature of the ALICE detector at the LHC. [...] arXiv:1610.03055 ; CERN-EP-2016-253. - 2016. - 20 p. Preprint - Full text

2016-10-13
08:14
 Search for the $C\!P$-violating strong decays $\eta \to \pi^+\pi^-$ and $\eta^\prime(958) \to \pi^+\pi^-$ / LHCb collaboration A search for the $C\!P$-violating strong decays $\eta \to \pi^+\pi^-$ and $\eta^\prime(958) \to \pi^+\pi^-$ has been performed using approximately $2.5 \times 10^{7}$ events of each of the decays $D^+ \to \pi^+\pi^+\pi^-$ and $D_s^+ \to \pi^+\pi^+\pi^-$, recorded by the LHCb experiment. [...] arXiv:1610.03666 ; LHCB-PAPER-2016-046 ; CERN-EP-2016-257. - 2016. - 17 p. Preprint - Full text - Related data file(s) - Related supplementary data file(s)

2016-10-07
17:36
 Measurements of prompt charm production cross-sections in $pp$ collisions at $\sqrt{s} = 5$ TeV / LHCb Collaboration Production cross-sections of prompt charm mesons are measured using data from $pp$ collisions at the LHC at a centre-of-mass energy of $5\,$TeV. [...] arXiv:1610.02230 ; LHCB-PAPER-2016-042 ; CERN-EP-2016-244. - 2016. - 43 p. Related data file(s) - Preprint - Full text - Related supplementary data file(s)

2016-10-06
09:47
 Observation of $B^+\rightarrow J/\psi 3\pi^+ 2\pi^-$ and $B^+\rightarrow \psi(2S) \pi^+\pi^+\pi^-$ decays / LHCb Collaboration The decays $B^+\rightarrow J/\psi 3\pi^+ 2\pi^-$ and $B^+\rightarrow \psi(2S) \pi^+\pi^+\pi^-$ are observed for the first time using a data sample corresponding to an integrated luminosity of $3.0fb^{-1}$, collected by the LHCb experiment in proton-proton collisions at the centre-of-mass energies of 7 and 8 TeV. [...] arXiv:1610.01383 ; LHCB-PAPER-2016-040 ; CERN-EP-2016-247. - 2016. - 20 p. Related data file(s) - Preprint - Full text

2016-09-26
07:23
 Sivers asymmetry extracted in SIDIS at the hard scale of the Drell-Yan process at COMPASS / COMPASS Collaboration Proton transverse-spin azimuthal asymmetries are extracted from the COMPASS 2010 semi-inclusive hadron measurements in deep inelastic muon-nucleon scattering in those four regions of the photon virtuality $Q^2$, which correspond to the four regions of the di-muon mass $\sqrt{Q^2}$ used in the ongoing analysis of the COMPASS Drell-Yan measurements. [...] arXiv:1609.07374 ; CERN-EP-2016-250. - 2016. - 13 p. Preprint - Full text

2016-09-22
08:20
 Azimuthal asymmetries of charged hadrons produced in high-energy muon scattering off longitudinally polarised deuterons / COMPASS Collaboration Single hadron azimuthal asymmetries in the cross sections of positive and negative hadron production in muon semi-inclusive deep inelastic scattering off longitudinally polarised deuterons are determined using the 2006 COMPASS data and also all deuteron COMPASS data. [...] arXiv:1609.06062 ; CERN-EP-2016-245. - 2016. - 15 p. Preprint - Full text