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CERN Document Server 17 record trovati  1 - 10successivo  salta al record: La ricerca ha impiegato 1.54 secondi. 
1.
Evidence for the decay $B_c^+ \rightarrow J/\psi 3\pi^+ 2\pi^-$ / LHCb collaboration
Evidence is presented for the decay $B_c+\rightarrow J/\psi 3\pi^+2\pi^-$ using proton-proton collision data, corresponding to an integrated luminosity of 3fb$^{-1}$, collected with the LHCb detector. A signal yield of $32\pm8$ decays is found with a significance of 4.5 standard deviations. [...]
arXiv:1404.0287; CERN-PH-EP-2014-054; LHCB-PAPER-2014-009; CERN-PH-EP-2014-054; LHCB-PAPER-2014-009.- Geneva : CERN, 2014 - 17 p. - Published in : JHEP 05 (2014) 148 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint
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2.
Observation of photon polarization in the $b \to s\gamma$ transition / LHCb collaboration
This Letter presents a study of the flavor-changing neutral current radiative $B^{\pm} \to K^{\pm}\pi^{\mp}\pi^{\pm}\gamma$ decays performed using data collected in proton-proton collisions with the LHCb detector at $7$ and $8\,$TeV center-of-mass energies. In this sample, corresponding to an integrated luminosity of $3\,\text{fb}^{-1}$, nearly $14\,000$ signal events are reconstructed and selected, containing all possible intermediate resonances with a $K^{\pm}\pi^{\mp}\pi^{\pm}$ final state in the $[1.1, 1.9]\,$GeV/$c^{2}$ mass range. [...]
arXiv:1402.6852; CERN-PH-EP-2014-026; LHCB-PAPER-2014-001; CERN-PH-EP-2014-026; LHCB-PAPER-2014-001.- Geneva : CERN, 2014-04-22 - 8 p. - Published in : Phys. Rev. Lett. 112 (2014) 161801 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint
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3.
Measurement of resonant and $CP$ components in $\overline{B}_s^0\to J/\psi\pi^+\pi^-$ decays / LHCb Collaboration
The resonant structure of the decay $\overline{B}_s^0\to J/\psi\pi^+\pi^-$ is studied using data corresponding to 3 fb$^{-1}$ of integrated luminosity from $pp$ collisions by the LHC and collected by the LHCb detector. Five interfering $\pi^+\pi^-$ states are required to describe the decay: $f_0(980),~f_0(1500),~f_0(1790),~f_2(1270)$, and $f_2^{\prime}(1525)$. [...]
arXiv:1402.6248; LHCB-PAPER-2013-069; CERN-PH-EP-2014-024; LHCB-PAPER-2013-069; CERN-PH-EP-2014-024.- Geneva : CERN, 2014-05-14 - 21 p. - Published in : Phys. Rev. D 89 (2014) 092006 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
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4.
Precision measurement of the ratio of the $\Lambda^0_b$ to $\overline{B}^0$ lifetimes / LHCb collaboration
The LHCb measurement of the lifetime ratio of the $\Lambda^0_b$ to the $\overline{B}^0$ meson is updated using data corresponding to an integrated luminosity of 3.0 fb$^{-1}$ collected using 7 and 8 TeV centre-of-mass energy $pp$ collisions at the LHC. The decay modes used are $\overline{\Lambda}^0_b \to J/\psi p K^-$ and $\overline{B}^0 \to J/\psi \pi^+ K^-$, where the $\pi^+K^-$ mass is consistent with that of the $\overline{K}^{*0}(892)$ meson. [...]
arXiv:1402.6242; CERN-PH-EP-2014-027; LHCB-PAPER-2014-003; CERN-PH-EP-2014-027; LHCB-PAPER-2014-003.- Geneva : CERN, 2014-06-27 - 9 p. - Published in : Phys. Lett. B 734 (2014) 122 Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: S0370269314003232 - XML; arXiv:1402.6242 - PDF; Related data file(s): ZIP; External link: Preprint
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5.
Measurement of charged particle multiplicities and densities in $pp$ collisions at $\sqrt{s}$ = 7 TeV in the forward region / LHCb collaboration
Charged particle multiplicities are studied in proton-proton collisions in the forward region at a centre-of-mass energy of $\sqrt{s} = 7\;$TeV with data collected in 2010 by the LHCb detector. The forward spectrometer allows access to a kinematic range of $2.0<\eta<4.8$ in pseudorapidity, momenta down to $2\;$GeV/$c$ and transverse momenta down to $0.2\;$GeV/$c$. [...]
arXiv:1402.4430; CERN-PH-EP-2014-023; LHCB-PAPER-2013-070; CERN-PH-EP-2014-023; LHCB-PAPER-2013-070.- Geneva : CERN, 2014-05-24 - 23 p. - Published in : Eur. Phys. J. C (2014) 74:2888 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Rivet analyses reference
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6.
A study of CP violation in $B^\pm \to D K^\pm$ and $B^\pm \to D \pi^\pm$ decays with $D \to K^0_{\rm S} K^\pm \pi^\mp$ final states / LHCb Collaboration
A first study of CP violation in the decay modes $B^\pm\to [K^0_{\rm S} K^\pm \pi^\mp]_D h^\pm$ and $B^\pm\to [K^0_{\rm S} K^\mp \pi^\pm]_D h^\pm$, where $h$ labels a $K$ or $\pi$ meson and $D$ labels a $D^0$ or $\overline{D}^0$ meson, is performed. The analysis uses the LHCb data set collected in $pp$ collisions, corresponding to an integrated luminosity of 3 fb$^{-1}$. [...]
arXiv:1402.2982; CERN-PH-EP-2014-017; LHCB-PAPER-2013-068; CERN-PH-EP-2014-017; LHCB-PAPER-2013-068.- Geneva : CERN, 2014-06-02 - 10 p. - Published in : Phys. Lett. B 733 (2014) 36-45 Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: S037026931400207X - XML; arXiv:1402.2982 - PDF; Related data file(s): ZIP; External link: Preprint
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7.
Measurements of the $B^+$, $B^0$, $B_s^0$ meson and $\Lambda_b^0$ baryon lifetimes / LHCb collaboration
Measurements of $b$-hadron lifetimes are reported using $pp$ collision data, corresponding to an integrated luminosity of 1.0fb$^{-1}$, collected by the LHCb detector at a centre-of-mass energy of $7$Tev. Using the exclusive decays $B^+\to J/\psi K^+$, $B^0\to J/\psi K^*(892)^0$, $B^0\to J/\psi K^0_{\rm S}$, $\Lambda_b^0\to J/\psi \Lambda$ and $B^0_s\to J/\psi \phi$ the average decay times in these modes are measured to be $\tau_{B^+\to J/\psi K^+}$ = $1.637 \pm$ 0.004 $\pm$ 0.003 ps, $\tau_{B^0\to J/\psi K^*(892)^0}$ = $1.524 \pm$ 0.006 $\pm$ 0.004 ps, $\tau_{B^0\to J/\psi K^0_{\rm S}}$ = $1.499 \pm$ 0.013 $\pm$ 0.005 ps, $\tau_{\Lambda_b^0\to J/\psi \Lambda}$ = $1.415 \pm$ 0.027 $\pm$ 0.006 ps and $\tau_{B^0_s\to J/\psi \phi}$ = $1.480 \pm$ 0.011 $\pm$ 0.005 ps, where the first uncertainty is statistical and the second is systematic. [...]
arXiv:1402.2554; LHCB-PAPER-2013-065; CERN-PH-EP-2014-018; LHCB-PAPER-2013-065; CERN-PH-EP-2014-018.- Geneva : CERN, 2014 - 26 p. - Published in : JHEP 04 (2014) 114 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint
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8.
Measurement of $\Upsilon$ production in $pp$ collisions at $\sqrt{s}=2.76$ TeV / LHCb collaboration
The production of $\Upsilon(1S)$, $\Upsilon(2S)$ and $\Upsilon(3S)$ mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3 $pb^{-1}$ collected in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=2.76$ TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the $\Upsilon$ transverse momentum and rapidity, over the ranges $p_{\rm T}<15$ GeV/$c$ and $2.0<y<4.5$. [...]
arXiv:1402.2539; CERN-PH-EP-2014-016; LHCB-PAPER-2013-066; CERN-PH-EP-2014-016; LHCB-PAPER-2013-066.- Geneva : CERN, 2014-04-29 - 21 p. - Published in : Eur. Phys. J. C 74 (2014) 2835 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint
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9.
Searches for $\Lambda^0_{b}$ and $\Xi^{0}_{b}$ decays to $K^0_{\rm S} p \pi^{-}$ and $K^0_{\rm S}p K^{-}$ final states with first observation of the $\Lambda^0_{b} \rightarrow K^0_{\rm S}p \pi^{-}$ decay / LHCb collaboration
A search for previously unobserved decays of beauty baryons to the final states $K^0_{\rm\scriptscriptstyle S} p \pi^{-}$ and $K^0_{\rm\scriptscriptstyle S}p K^{-}$ is reported. The analysis is based on a data sample corresponding to an integrated luminosity of $1.0\,$fb$^{-1}$ of $pp$ collisions. [...]
arXiv:1402.0770; LHCB-PAPER-2013-061; CERN-PH-EP-2014-012; LHCB-PAPER-2013-061; CERN-PH-EP-2014-012.- Geneva : CERN, 2014 - 24 p. - Published in : JHEP 04 (2014) 087 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF;
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10.
Measurement of the $B_c^+$ meson lifetime using $B_c^+ \to J/\psi\mu^+ \nu_{\mu} X$ decays / LHCb collaboration
The lifetime of the $B_c^+$ meson is measured using semileptonic decays having a $J/\psi$ meson and a muon in the final state. The data, corresponding to an integrated luminosity of $2\mathrm{~fb^{-1}}$, are collected by the LHCb detector in $pp$ collisions at a centre-of-mass energy of $8\,\mathrm{TeV}$. [...]
arXiv:1401.6932; CERN-PH-EP-2014-008; LHCB-PAPER-2013-063; CERN-PH-EP-2014-008; LHCB-PAPER-2013-063.- Geneva : CERN, 2014-05-01 - 28 p. - Published in : Eur. Phys. J. C 74 (2014) 2839 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF;
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CERN Document Server : 17 record trovati   1 - 10successivo  salta al record:
Vedi anche: autori con nomi simili
214 Shevchenko, O
17 Shevchenko, O A
1 Shevchenko, O F
2 Shevchenko, O G
3 Shevchenko, O S
54 Shevchenko, O Yu
46 Shevchenko, O.
2 Shevchenko, O. Yu.
48 Shevchenko, O.Yu.
1 Shevchenko, Oleg
1 Shevchenko, Oleg A.
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