# LHCb Papers

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2015-10-29
08:39
 First observation of the decay $D^{0}\rightarrow K^{-}\pi^{+}\mu^{+}\mu^{-}$ in the $\rho^{0}$-$\omega$ region of the dimuon mass spectrum / LHCb collaboration A study of the decay $D^{0}\rightarrow K^{-}\pi^{+}\mu^{+}\mu^{-}$ is performed using data collected by the LHCb detector in proton-proton collisions at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 2.0 fb$^{-1}$. [...] arXiv:1510.08367 ; LHCB-PAPER-2015-043 ; CERN-PH-EP-2015-283. - 2015. - 21 p. Preprint - Full text - Related data file(s)

2015-10-21
07:55
 Production of associated $\Upsilon$ and open charm hadrons in $pp$ collisions at $\sqrt{s}=7$ and $8$ TeV via double parton scattering / LHCb collaboration Associated production of bottomonia and open charm hadrons in $pp$ collisions at $\sqrt{s}=7$ and $8$TeV is observed using data corresponding to an integrated luminosity of 3$fb^{-1}$ accumulated with the LHCb detector. [...] arXiv:1510.05949 ; CERN-PH-EP-2015-279 ; LHCB-PAPER-2015-046. - 2015. - 36 p. Preprint - Full text - Related data file(s) - Related supplementary data file(s)

2015-10-19
07:24
 Search for the rare decays $B^{0}\to J/\psi \gamma$ and $B^{0}_{s} \to J/\psi \gamma$ / LHCb collaboration A search for the rare decay of a $B^{0}$ or $B^{0}_{s}$ meson into the final state $J/\psi\gamma$ is performed, using data collected by the LHCb experiment in $pp$ collisions at $\sqrt{s}=7$ and $8$ TeV, corresponding to an integrated luminosity of 3 fb$^{-1}$. [...] arXiv:1510.04866 ; LHCB-PAPER-2015-044 ; CERN-PH-EP-2015-276. - 2015. - 17 p. Preprint - Full text - Related supplementary data file(s) - Related data file(s)

2015-10-08
08:21
 Model-independent measurement of mixing parameters in $D^0 \to K_S^0 \pi^+ \pi^-$ decays / LHCb collaboration The first model-independent measurement of the charm mixing parameters in the decay $D^0 \to K_S \pi^+ \pi^-$ is reported, using a sample of $pp$ collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb$^{-1}$ at a centre-of-mass energy of 7 TeV. [...] arXiv:1510.01664 ; CERN-PH-EP-2015-249 ; LHCB-PAPER-2015-042. - 2015. - 25 p. Preprint - Full text - Related data file(s) - Related supplementary data file(s)

2015-10-07
09:02
 Measurements of prompt charm production cross-sections in $pp$ collisions at $\sqrt{s}$ = 13 TeV / LHCb Collaboration Production cross-sections of prompt charm mesons are measured with the first data from $pp$ collisions at the LHC at a centre-of-mass energy of $13\,\mathrm{TeV}$. [...] arXiv:1510.01707 ; LHCB-PAPER-2015-041 ; CERN-PH-EP-2015-272. - 2015. - 46 p. Related data file(s) - Preprint - Full text - Related supplementary data file(s)

2015-09-28
14:20
 Measurement of the forward-backward asymmetry in $Z/\gamma^{\ast} \rightarrow \mu^{+}\mu^{-}$ decays and determination of the effective weak mixing angle / LHCb Collaboration The forward-backward charge asymmetry for the process $q\bar{q} \rightarrow Z/\gamma^{\ast} \rightarrow \mu^{+}\mu^{-}$ is measured as a function of the invariant mass of the dimuon system. [...] arXiv:1509.07645 ; LHCB-PAPER-2015-039 ; CERN-PH-EP-2015-250. - 2015. - 20 p. Related data file(s) - Preprint - Related supplementary data file(s)

2015-09-23
16:53
 Studies of the resonance structure in $D^0\to K^0_S K^{\pm}\pi^{\mp}$ decays / LHCb Collaboration Amplitude models are applied to studies of resonance structure in $D^0\to K^0_S K^- \pi^+$ and $D^0\to K^0_S K^+ \pi^-$ decays using $pp$ collision data corresponding to an integrated luminosity of $3.0\,\mathrm{fb}^{-1}$ collected by the LHCb experiment. [...] arXiv:1509.06628 ; LHCB-PAPER-2015-026 ; CERN-PH-EP-2015-238. - 2015. - 56 p. Related data file(s) - Preprint - Full text - Related supplementary data file(s) 1 - Related supplementary data file(s) 2

2015-09-08
16:48
 Forward production of $\Upsilon$ mesons in $pp$ collisions at $\sqrt{s}=7$ and 8TeV / LHCb Collaboration The production of $\Upsilon$ mesons in $pp$ collisions at $\sqrt=7$ and $8\,\mathrm{TeV}$ is studied with the LHCb detector using data samples corresponding to an integrated luminosity of $1\,\mathrm{fb}^{-1}$ and $2\,\mathrm{fb}^{-1}$ respectively. [...] arXiv:1509.02372 ; LHCB-PAPER-2015-045 ; CERN-PH-EP-2015-232. - 2015. - 36 p. Related data file(s) - Preprint - Full text - Related supplementary data file(s)

2015-09-03
07:55
 Measurement of forward $J/\psi$ production cross-sections in $pp$ collisions at $\sqrt{s}=13$ TeV / LHCb collaboration The production of $J/\psi$ mesons in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=13$ TeV is studied with the LHCb detector. Cross-section measurements are performed as a function of the transverse momentum $p_\mathrm{T}$ and the rapidity $y$ of the $J/\psi$ meson in the region $p_\mathrm{T}<14 \mathrm{GeV}/c$ and $2.0 < y < 4.5$, for both prompt $J/\psi$ mesons and $J/\psi$ mesons from $b$-hadron decays. [...] arXiv:1509.00771; LHCB-PAPER-2015-037; CERN-PH-EP-2015-222.- Geneva : CERN, 2015 - 33 p. - Published in : J. High Energy Phys. 10 (2015) 172 Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint

2015-09-02
08:54
 First measurement of the differential branching fraction and $C\!P$ asymmetry of the $B^\pm\to\pi^\pm\mu^+\mu^-$ decay / LHCb collaboration The differential branching fraction with respect to the dimuon invariant mass squared, and the $C\!P$ asymmetry of the $B^\pm\to\pi^\pm\mu^+\mu^-$ decay are measured for the first time. The CKM matrix elements $|V_{td}|$ and $|V_{ts}|$, and the ratio $|V_{td}/V_{ts}|$ are determined. [...] arXiv:1509.00414; LHCB-PAPER-2015-035; CERN-PH-EP-2015-219.- Geneva : CERN, 2015 - 22 p. - Published in : J. High Energy Phys. 10 (2015) 034 Fulltext: PDF; Related data file(s): ZIP; External link: Preprint