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LHCb Papers

Darreres entrades:
2014-09-17
11:40
Measurement of the $\eta_c (1S)$ production cross-section in proton-proton collisions via the decay $\eta_c (1S) \rightarrow p \bar{p}$
The production of the $\eta_c (1S)$ state in proton-proton collisions is probed via its decay to the $p \bar{p}$ final state with the LHCb detector, in the rapidity range $2.0 < y < 4.5$ and in the meson transverse-momentum range $p_T > 6.5$ GeV/c. [...]
CERN-PH-EP-2014-218 ; LHCB-PAPER-2014-029.
- 2014.
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2014-09-05
07:34
Measurement of the $\chi_b(3P)$ mass and of the relative rate of $\chi_{b1}(1P)$ and $\chi_{b2}(1P)$ production / LHCb collaboration
The production of $\chi_b$ mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of $\sqrt{s}=7$ and $8$ TeV and corresponding to an integrated luminosity of 3.0 fb$^{-1}$ [...]
arXiv:1409.1408 ; LHCB-PAPER-2014-040 ; CERN-PH-EP-2014-206.
- 2014. - 24 p.
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2014-08-25
10:28
Measurements of $C\!P$ violation in the three-body phase space of charmless $B^{\pm}$ decays / LHCb Collaboration
The charmless three-body decay modes $B^{\pm} \rightarrow K^{\pm} \pi^{+} \pi^{-}$, $B^{\pm} \rightarrow K^{\pm} K^{+} K^{-}$, $B^{\pm} \rightarrow \pi^{\pm} K^{+} K^{-}$ and $B^{\pm} \rightarrow \pi^{\pm} \pi^{+} \pi^{-}$ are reconstructed using data, corresponding to an integrated luminosity of 3.0 fb$^{-1}$, collected by the LHCb detector [...]
CERN-PH-EP-2014-203 ; LHCB-PAPER-2014-044 ; arXiv:1408.5373.
- 2014. - 29 p.
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2014-08-20
07:34
Determination of $\gamma$ and $-2\beta_s$ from charmless two-body decays of beauty mesons / LHCb collaboration
Using the latest LHCb measurements of time-dependent $C\!P$ violation in the $B^0_s \to K^+K^-$ decay, a U-spin relation between the decay amplitudes of $B^0_s \to K^+K^-$ and $B^0\to \pi^+\pi^-$ decay processes allows constraints to be placed on the angle $\gamma$ of the unitarity triangle and on the $B^0_s$ mixing phase $-2\beta_s$. [...]
arXiv:1408.4368 ; CERN-PH-EP-2014-207 ; LHCB-PAPER-2014-045.
- 2014. - 25 p.
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2014-08-20
07:34
Measurement of the forward $W$ boson cross-section in $pp$ collisions at $\sqrt{s} = 7 {\rm \, TeV}$ / LHCb collaboration
A measurement of the inclusive $W \to \mu\nu$ production cross-section using data from $pp$ collisions at a centre-of-mass energy of $\sqrt{s} = 7 {\rm \, TeV}$ is presented. [...]
arXiv:1408.4354 ; LHCB-PAPER-2014-033 ; CERN-PH-EP-2014-175.
- 2014. - 29 p.
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2014-08-13
17:03
Measurement of the CKM angle $\gamma$ using $B^\pm \to D K^\pm$ with $D \to K^0_{\rm S} \pi^+\pi^-, K^0_{\rm S} K^+ K^-$ decays / LHCb Collaboration
A binned Dalitz plot analysis of $B^\pm \to D K^\pm$ decays, with $D \to K^0_{\rm S} \pi^+\pi^-$ and $D \to K^0_{\rm S} K^+ K^-$, is performed to measure the $C\!P$-violating observables $x_{\pm}$ and $y_{\pm}$, which are sensitive to the Cabibbo-Kobayashi-Maskawa angle $\gamma$. [...]
arXiv:1408.2748 ; LHCB-PAPER-2014-041 ; CERN-PH-EP-2014-202.
- 2014. - 35 p.
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2014-08-07
09:53
Search for $CP$ violation using $T$-odd correlations in $D^0 \to K^+K^-\pi^+\pi^-$ decays / LHCb collaboration
A search for $CP$ violation using $T$-odd correlations is performed using the four-body $D^0 \to K^+K^-\pi^+\pi^-$ decay, selected from semileptonic $B$ decays. [...]
arXiv:1408.1299 ; CERN-PH-EP-2014-194 ; LHCB-PAPER-2014-046.
- 2014. - 23 p.
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2014-08-07
09:53
First observations of the rare decays $B^+\!\rightarrow K^+\pi^+\pi^-\mu^+\mu^-$ and $B^+\!\rightarrow\phi K^+\mu^+\mu^-$ / LHCb collaboration
First observations of the rare decays $B^+\rightarrow K^+\pi^+\pi^-\mu^+\mu^-$ and $B^+\rightarrow \phi K^+\mu^+\mu^-$ are presented using data corresponding to an integrated luminosity of $3.0\,\mbox{fb}^{-1}$, collected by the LHCb experiment at centre-of-mass energies of $7$ and $8\mathrm{\,TeV}$. [...]
arXiv:1408.1137 ; LHCB-PAPER-2014-030 ; CERN-PH-EP-2014-193.
- 2014. - 20 p.
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2014-08-06
04:10
Measurement of $C\!P$ asymmetries in the decays $B^0 \rightarrow K^{*0} \mu^+ \mu^-$ and $B^+ \rightarrow K^{+} \mu^+ \mu^-$ / LHCb collaboration
The direct $C\!P$ asymmetries of the decays $B^0 \rightarrow K^{*0} \mu^+ \mu^-$ and $B^+ \rightarrow K^{+} \mu^+ \mu^-$ are measured using $pp$ collision data corresponding to an integrated luminosity of 3.0$\mbox{fb}^{-1}$ collected with the LHCb detector. [...]
arXiv:1408.0978 ; CERN-PH-EP-2014-191 ; LHCB-PAPER-2014-032.
- 2014. - 19 p.
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2014-08-06
04:10
First observation of a baryonic $B_c^+$ decay / LHCb collaboration
A baryonic decay of the $B_c^+$ meson, $B_c^+\to J/\psi p\overline{p}\pi^+$, is observed for the first time, with a significance of $7.3$ standard deviations, in $pp$ collision data collected with the LHCb detector and corresponding to an integrated luminosity of $3.0$ fb$^{-1}$ taken at center-of-mass energies of $7$ and $8$ $\mathrm{TeV}$. [...]
arXiv:1408.0971 ; CERN-PH-EP-2014-187 ; LHCB-PAPER-2014-039.
- 2014. - 20 p.
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