# PH-EP Preprints

2015-08-06
20:10
 Search for neutral MSSM Higgs bosons decaying to $\mu^{+} \mu^{-}$ in pp collisions at $\sqrt{s} =$ 7 and 8 TeV / CMS Collaboration A search for neutral Higgs bosons predicted in the minimal supersymmetric standard model (MSSM) for $\mu^{+} \mu^{-}$ decay channels is presented. [...] arXiv:1508.01437 ; CMS-HIG-13-024 ; CERN-PH-EP-2015-148. - 2015. - 38 p. Preprint - Full text

2015-08-06
05:14
 Measurement of transverse energy--energy correlations in multi-jet events in $pp$ collisions at $\sqrt{s} = 7$ TeV using the ATLAS detector and determination of the strong coupling constant $\alpha_{\mathrm{s}}(m_Z)$ / , High transverse momentum jets produced in pp collisions at a centre of mass energy of 7 TeV are used to measure the transverse energy--energy correlation function and its associated azimuthal asymmetry. [...] arXiv:1508.01579 ; CERN-PH-EP-2015-177. - 2015. - 19 p. Previous draft version - Preprint - Full text

2015-08-05
22:52
 Search for supersymmetry in events with a photon, a lepton, and missing transverse momentum in pp collisions at $\sqrt{s} =$ 8 TeV / CMS Collaboration A search for supersymmetry involving events with at least one photon, one electron or muon, and large missing transverse momentum has been performed by the CMS experiment. [...] arXiv:1508.01218 ; CMS-SUS-14-013 ; CERN-PH-EP-2015-169. - 2015. - 36 p. Preprint - Full text

2015-08-05
08:25
 Measurement of the $B_s^0 \to \phi \phi$ branching fraction and search for the decay $B^0 \to \phi \phi$ / LHCb collaboration Using a dataset corresponding to an integrated luminosity of 3.0 fb$^{-1}$ collected in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV, the $B_s^0 \to \phi \phi$ branching fraction is measured to be $\mathcal{B}(B_s^0 \to \phi \phi) = ( 1.84 \pm 0.05 (\text{stat}) \pm 0.07 (\text{syst}) \pm 0.11 (f_s/f_d) \pm 0.12 (\text{norm}) ) \times 10^{-5},$ where $f_s/f_d$ represents the ratio of the $B_s^0$ to $B^0$ production cross-sections, and the $B^0 \to \phi K^*(892)^0$ decay mode is used for normalization. [...] arXiv:1508.00788 ; LHCB-PAPER-2015-028 ; CERN-PH-EP-2015-198. - 2015. - 20 p. Preprint - Full text - Related data file(s)

2015-08-04
19:28
 Measurement of the centrality dependence of the charged-particle pseudorapidity distribution in proton--lead collisions at $\sqrt{s_{_\text{NN}}} = 5.02$ TeV with the ATLAS detector / ATLAS Collaboration The centrality dependence of the mean charged-particle multiplicity as a function of pseudorapidity is measured in approximately 1 $\mu$b$^{-1}$ of proton--lead collisions at a nucleon--nucleon centre-of-mass energy of $\sqrt{s_{_\text{NN}}} = 5.02$ TeV using the ATLAS detector at the Large Hadron Collider. [...] arXiv:1508.00848 ; CERN-PH-EP-2015-160. - 2015. - 28 p. Previous draft version - Preprint - Full text

2015-07-31
19:13
 Determination of the ratio of $b$-quark fragmentation fractions $f_s/f_d$ in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS detector / ATLAS Collaboration With an integrated luminosity of 2.47 fb$^{-1}$ recorded by the ATLAS experiment at the LHC, the exclusive decays $B_{s}^{0}\rightarrow J/\psi\phi$ and $B_{d}^{0}\rightarrow J/\psi K^{*0}$ of $B$ mesons produced in $pp$ collisions at $\sqrt{s}=7$ TeV are used to determine the ratio of fragmentation fractions $f_s/f_d$. [...] arXiv:1507.08925 ; CERN-PH-EP-2015-165. - 2015. - 8 p. Previous draft version - Preprint - Full text

2015-07-30
07:53
 $B$ flavour tagging using charm decays at the LHCb experiment / LHCb collaboration An algorithm is described for tagging the flavour content at production of neutral $B$ mesons in the LHCb experiment. [...] arXiv:1507.07892 ; CERN-PH-EP-2015-193 ; LHCB-PAPER-2015-027. - 2015. - 19 p. Preprint - Full text - Related supplementary data file(s) - Related data file(s)

2015-07-30
07:51
 Study of cosmic ray events with high muon multiplicity using the ALICE detector at the CERN Large Hadron Collider / ALICE Collaboration ALICE is one of four large experiments at the CERN Large Hadron Collider near Geneva, specially designed to study particle production in ultra-relativistic heavy-ion collisions. [...] arXiv:1507.07577 ; CERN-PH-EP-2015-196. - 2015. - 22 p. Preprint

2015-07-29
16:53
 Angular analysis of the decay $\mathrm{ B^0 \to K^{*0} \mu^{+} \mu^{-} }$ from pp collisions at $\sqrt{s}=$ 8 TeV / CMS Collaboration The angular distributions and the differential branching fraction of the decay $\mathrm{ B^0 \to K^{*}(892)^0 \mu^{+} \mu^{-} }$ are studied using data corresponding to an integrated luminosity of 20.5 fb$^{-1}$ collected with the CMS detector at the LHC in pp collisions at $\sqrt{s} =$ 8 TeV. [...] arXiv:1507.08126 ; CMS-BPH-13-010 ; CERN-PH-EP-2015-178. - 2015. - 36 p. Preprint - Full text

2015-07-29
16:44
 Measurement of the branching ratio $\Gamma(\Lambda_b^0 \rightarrow \psi(2S)\Lambda^0)/\Gamma(\Lambda_b^0 \rightarrow J/\psi\Lambda^0)$ with the ATLAS detector / ATLAS Collaboration An observation of the $\Lambda_b^0 \rightarrow \psi(2S) \Lambda^0$ decay and a comparison of its branching fraction with that of the $\Lambda_b^0 \rightarrow J/\psi \Lambda^0$ decay has been made with the ATLAS detector in proton--proton collisions at $\sqrt{s}=8\,$TeV at the LHC using an integrated luminosity of $20.6\,$fb$^{-1}$. [...] arXiv:1507.08202 ; CERN-PH-EP-2015-164. - 2015. - 12 p. Previous draft version - Preprint - Full text