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LHCb Papers

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2014-07-25
17:50
Measurement of $CP$ asymmetry in $B^0_s \rightarrow D^{\mp}_s K^{\pm}$ decays
We report on measurements of the time-dependent $CP$ violating observables in $B^0_s\rightarrow D^{\mp}_s K^{\pm}$ decays using a dataset corresponding to 1.0 fb$^{-1}$ of pp collisions recorded with the LHCb detector. [...]
CERN-PH-EP-2014-168 ; LHCB-PAPER-2014-038. - 2014.
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2014-07-24
05:00
Measurement of $CP$ violation and constraints on the CKM angle $\gamma$ in $B^{\pm}\rightarrow D K^{\pm}$ with $D \rightarrow K_S^0 \pi^+ \pi^-$ decays / LHCb collaboration
A model-dependent amplitude analysis of $B^{\pm} \rightarrow D K^{\pm}$ with $D \rightarrow K_S^0 \pi^+ \pi^-$ decays is performed using proton-proton collision data, corresponding to an integrated luminosity of $1$ fb$^{-1}$, recorded by LHCb at a centre-of-mass energy of $7$ TeV in $2011$. [...]
arXiv:1407.6211 ; LHCB-PAPER-2014-017 ; CERN-PH-EP-2014-166. - 2014. - 28 p.
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2014-07-23
16:28
Evidence of $CP$ violation in $B^+\to p\bar{p}K^+$ decays / LHCb Collaboration
Three-body $B^+\to p \overline p K^+$ and $B^+\to p \overline p \pi^+$ decays are studied using a data sample corresponding to an integrated luminosity of 3.0 $fb^{-1}$ collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of $7$ and $8$ TeV. [...]
arXiv:1407.5907 ; LHCB-PAPER-2014-034 ; CERN-PH-EP-2014-173. - 2014. - 17 p.
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2014-07-10
05:12
Measurement of CP violation in $B_s^0 \to \phi \phi$ decays / LHCb collaboration
A measurement of the decay time dependent $CP$-violating asymmetry in $B_s^0 \to \phi\phi$ decays is presented, along with measurements of the $T$-odd triple-product asymmetries. [...]
arXiv:1407.2222 ; CERN-PH-EP-2014-150 ; LHCB-PAPER-2014-026. - 2014. - 28 p.
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2014-07-10
05:12
Measurement of the ratio of $B_c^+$ branching fractions to $J/\psi\pi^+$ and $J/\psi\mu^+\nu_\mu$ final states / LHCb collaboration
The first measurement that relates semileptonic and hadronic decay rates of the $B_c^+$ meson is performed using proton-proton collision data corresponding to 1.0 fb$^{-1}$ of integrated luminosity collected with the LHCb detector. [...]
arXiv:1407.2126 ; LHCB-PAPER-2014-025 ; CERN-PH-EP-2014-163. - 2014. - 20 p.
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2014-06-30
04:06
Effective lifetime measurements in the $B_{s}^{0} \rightarrow K^{+}K^{-}$, $B^{0} \rightarrow K^{+}\pi^{-}$ and $B_{s}^{0} \rightarrow \pi^{+}K^{-}$ decays / LHCb collaboration
Measurements of the effective lifetimes in the $B_{s}^{0} \rightarrow K^{+}K^{-}$, $B^{0} \rightarrow K^{+}\pi^{-}$ and $B_{s}^{0} \rightarrow \pi^{+}K^{-}$ decays are presented using $1.0~\mathrm{fb^{-1}}$ of $pp$ collision data collected at a centre-of-mass energy of 7 TeV by the LHCb experiment. [...]
arXiv:1406.7204 ; CERN-PH-EP-2014-127 ; LHCB-PAPER-2014-011. - 2014. - 12 p.
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2014-06-26
12:42
Test of lepton universality using $B^{+}\rightarrow K^{+}\ell^{+}\ell^{-}$ decays / LHCb Collaboration
A measurement of the ratio of the branching fractions of the $B^{+}\rightarrow K^{+}\mu^{+}\mu^{-}$ and $B^{+}\rightarrow K^{+}e^{+}e^{-}$ decays is presented using proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb$^{-1}$, recorded with the LHCb experiment at center-of-mass energies of 7 and 8 $\mathrm{\,Te\kern -0.1em V}$. [...]
arXiv:1406.6482 ; CERN-PH-EP-2014-140 ; LHCB-PAPER-2014-024. - 2014. - 10 p.
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2014-06-19
09:41
First measurement of the charge asymmetry in beauty-quark pair production / LHCb collaboration
The difference in the angular distributions between beauty quarks and antiquarks, referred to as the charge asymmetry, is measured for the first time in $b\bar{b}$ pair production at a hadron collider. [...]
arXiv:1406.4789 ; CERN-PH-EP-2014-130 ; LHCB-PAPER-2014-023. - 2014. - 16 p.
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2014-06-12
04:51
Observation of $Z$ production in proton-lead collisions at LHCb / LHCb collaboration
The first observation of $Z$ boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of $\sqrt{s_{NN}}=5~\text{TeV}$ is presented. [...]
arXiv:1406.2885 ; CERN-PH-EP-2014-126 ; LHCB-PAPER-2014-022. - 2014. - 19 p.
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2014-06-05
20:23
Observation of the $\Lambda_b^0 \rightarrow J/\psi p \pi^-$ decay / LHCb collaboration
The first observation of the Cabibbo-suppressed decay $\Lambda_b^0\rightarrow J/\psi p \pi^-$ is reported using a data sample of proton-proton collisions at 7 and 8 TeV, corresponding to an integrated luminosity of 3 $\rm fb^{-1}$. [...]
arXiv:1406.0755 ; LHCB-PAPER-2014-020 ; CERN-PH-EP-2014-115. - 2014. - 20 p.
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