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EP Preprints

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2016-07-22
07:39
Observation of $\eta_{c}(2S) \to p \bar p$ and search for $X(3872) \to p \bar p$ decays / LHCb collaboration
The first observation of the decay $\eta_{c}(2S) \to p \bar p$ is reported using proton-proton collision data corresponding to an integrated luminosity of $3.0\rm \, fb^{-1}$ recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV [...]
arXiv:1607.06446 ; LHCB-PAPER-2016-016 CERN-EP-2016-175.
- 2016. - 16 p.
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2016-07-21
16:11
Measurement of the $B_{s}^{0} \rightarrow J/\psi \eta$ lifetime
Using a data set corresponding to an integrated luminosity of $3 fb^{-1}$, collected by the LHCb experiment in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV, the effective lifetime in the $B^0_s \rightarrow J/\psi \eta$ decay mode, $\tau_{\textrm{eff}}$, is measured to be $$\tau_{\textrm{eff}} = 1.479 \pm 0.034~\textrm{(stat)} \pm 0.011 ~\textrm{(syst)}\rm ps.$$ Assuming $CP$ conservation, $\tau_{\textrm{eff}}$ corresponds to the lifetime of the light $B_s^0$ mass eigenstate. [...]
CERN-EP-2016-166 ; LHCB-PAPER-2016-017.
- 2016.
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2016-07-21
11:31
Measurement of the forward Z boson production cross-section in pp collisions at $\sqrt{s} = 13$ TeV
A measurement of the production cross-section of Z bosons in pp collisions at $\sqrt{s} = 13$ TeV is presented using dimuon and dielectron final states in LHCb data. [...]
CERN-EP-2016-170 ; LHCB-PAPER-2016-021.
- 2016.
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2016-07-21
09:05
Study of $B^+_c$ decays to the $K^+K^-\pi^+$ final state and evidence for the decay $B^+_c\to\chi_{c0}\pi^+$ / LHCb Collaboration
A study of $B_c^+\to K^+K^-\pi^+$ decays is performed for the first time using data corresponding to an integrated luminosity of 3.0 $\mathrm{fb}^{-1}$ collected by the LHCb experiment in $pp$ collisions at centre-of-mass energies of $7$ and $8$ TeV. [...]
CERN-EP-2016-176 ; LHCB-PAPER-2016-022 ; arXiv:1607.06134.
- 2016.
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2016-07-14
08:56
Measurement of exclusive $\gamma\gamma\rightarrow W^+W^-$ production and search for exclusive Higgs boson production in $pp$ collisions at $\sqrt{s} = 8$ TeV using the ATLAS detector / ATLAS Collaboration
Searches for exclusively produced $W$ boson pairs in the process $pp(\gamma\gamma) \rightarrow pW^+W^-p$ and exclusively produced Higgs boson in the process $pp(gg) \rightarrow pHp$ have been performed using $e^{\pm}\mu^{\mp}$ final states. [...]
arXiv:1607.03745 ; CERN-EP-2016-123.
- 2016. - 31 p.
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2016-07-14
08:56
Search for high-mass new phenomena in the dilepton final state using proton--proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search is conducted for both resonant and non-resonant high-mass new phenomena in dielectron and dimuon final states. [...]
arXiv:1607.03669 ; CERN-EP-2016-116.
- 2016. - 18 p.
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2016-07-05
08:37
Measurement of the differential cross sections for top quark pair production as a function of kinematic event variables in pp collisions at $\sqrt{s}$ = 7 and 8 TeV / CMS Collaboration
Measurements are reported of the normalized differential cross sections for top quark pair production with respect to four kinematic event variables: the missing transverse energy; the scalar sum of the jet transverse momentum (pT); the scalar sum of the pT of all objects in the event; and the pT of leptonically decaying W bosons from top quark decays. [...]
arXiv:1607.00837 ; CMS-TOP-12-042 ; CERN-EP-2016-139.
- 2016. - 40 p.
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2016-06-28
15:21
Amplitude analysis of $B^+\to J/\psi \phi K^+$ decays
The first full amplitude analysis of $B^+\to J/\psi \phi K^+$ with $J/\psi\to\mu^+\mu^-$, $\phi\to K^+K^-$ decays is performed with a data sample of 3 fb$^{-1}$ of $pp$ collision data collected at $\sqrt{s}=7$ and $8$ TeV with the LHCb detector. [...]
CERN-EP-2016-156 ; LHCB-PAPER-2016-019.
- 2016.
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2016-06-28
08:04
Search for the Higgs boson produced in association with a $W$ boson and decaying to four $b$-quarks via two spin-zero particles in $pp$ collisions at 13 TeV with the ATLAS detector / ATLAS Collaboration
This paper presents a dedicated search for exotic decays of the Higgs boson to a pair of new spin-zero particles, $H \rightarrow aa$, where the particle $a$ decays to $b$-quarks and has a mass in the range of 20-60 GeV. [...]
arXiv:1606.08391 ; CERN-EP-2016-135.
- 2016. - 23 p.
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2016-06-28
08:04
Amplitude analysis of $B^+\to J/\psi \phi K^+$ decays / LHCb collaboration
The first full amplitude analysis of $B^+\to J/\psi \phi K^+$ with $J/\psi\to\mu^+\mu^-$, $\phi\to K^+K^-$ decays is performed with a data sample of 3 fb$^{-1}$ of $pp$ collision data collected at $\sqrt{s}=7$ and $8$ TeV with the LHCb detector. [...]
arXiv:1606.07898 ; LHCB-PAPER-2016-019 ; CERN-EP-2016-156.
- 2016. - 61 p.
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