# PH-EP Articles

Последние добавления:
2015-03-26
11:08
 Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}$ = 7 and 8 TeV with the ATLAS and CMS Experiments / ATLAS and CMS Collaborations A measurement of the Higgs boson mass is presented based on the combined data samples of the ATLAS and CMS experiments at the CERN LHC in the $H \rightarrow \gamma\gamma$ and $H \rightarrow ZZ\rightarrow 4\ell$ decay channels. The results are obtained from a simultaneous fit to the reconstructed invariant mass peaks in the two channels and for the two experiments. [...] arXiv:1503.07589; ATLAS-HIGG-2014-14; CMS-HIG-14-042; CERN-PH-EP-2015-075.- Geneva : CERN, 2015 - 45 p. - Published in : Phys. Rev. Lett. 114 (2015) 191803 APS Open Access article: 191803; Fulltext: PDF; External link: Preprint

2015-03-11
07:46
 First observation and amplitude analysis of the $B^{-}\to D^{+}K^{-}\pi^{-}$ decay / LHCb collaboration The $B^{-}\to D^{+}K^{-}\pi^{-}$ decay is observed in a data sample corresponding to $3.0~\rm{fb}^{-1}$ of $pp$ collision data recorded by the LHCb experiment during 2011 and 2012. Its branching fraction is measured to be ${\cal B}(B^{-}\to D^{+}K^{-}\pi^{-}) = (7.31 \pm 0.19 \pm 0.22 \pm 0.39) \times 10^{-5}$ where the uncertainties are statistical, systematic and from the branching fraction of the normalisation channel $B^{-}\to D^{+}\pi^{-}\pi^{-}$, respectively. [...] arXiv:1503.02995; CERN-PH-EP-2015-051; LHCB-PAPER-2015-007.- Geneva : CERN, 2015 - 39 p. - Published in : Phys. Rev. D 91 (2015) 092002 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint

2015-02-21
10:20
 Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at $\sqrt{s}$ = 8 TeV / CMS Collaboration A search is presented for physics beyond the standard model in final states with two opposite-sign same-flavor leptons, jets, and missing transverse momentum. The data sample corresponds to an integrated luminosity of 19.4 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}$ = 8 TeV collected with the CMS detector at the CERN LHC in 2012. [...] arXiv:1502.06031; CMS-SUS-14-014; CERN-PH-EP-2015-033.- Geneva : CERN, 2015 - 37 p. - Published in : J. High Energy Phys. 04 (2015) 124 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint

2015-02-19
20:33
 Measurement of the Z$\gamma$ production cross section in pp collisions at 8 TeV and search for anomalous triple gauge boson couplings / CMS Collaboration The cross section for the production of Z$\gamma$ in proton-proton collisions at 8 TeV is measured based on data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of 19.5 fb$^{-1}$. Events with an oppositely-charged pair of muons or electrons together with an isolated photon are selected. [...] arXiv:1502.05664; CMS-SMP-13-014; CERN-PH-EP-2014-303.- Geneva : CERN, 2015 - 39 p. - Published in : J. High Energy Phys. 04 (2015) 164 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint

2015-02-16
08:47
 Search for a CP-odd Higgs boson decaying to $Zh$ in $pp$ collisions at $\sqrt{s} = 8$ TeV with the ATLAS detector / ATLAS Collaboration A search for a heavy, CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a 125 GeV Higgs boson, $h$, with the ATLAS detector at the LHC is presented. The search uses proton--proton collision data at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 20.3 fb$^{-1}$. [...] arXiv:1502.04478; CERN-PH-EP-2015-013.- Geneva : CERN, 2015 - 30 p. - Published in : Phys. Lett. B 744 (2015) 163-183 Fulltext: PDF; External links: Previous draft version; Preprint

2015-02-10
08:06
 Precise measurements of the properties of the $B_1(5721)^{0,+}$ and $B^\ast_2(5747)^{0,+}$ states and observation of $B^{+,0}\pi^{-,+}$ mass structures / LHCb collaboration Invariant mass distributions of $B^+\pi^-$ and $B^0\pi^+$ combinations are investigated in order to study excited B mesons. The analysis is based on a data sample corresponding to $3.0 fb^{-1}$ of $pp$ collision data, recorded by the LHCb detector at centre-of-mass energies of 7 and 8 TeV. [...] arXiv:1502.02638; LHCB-PAPER-2014-067; CERN-PH-EP-2015-021.- Geneva : CERN, 2015 - 29 p. - Published in : J. High Energy Phys. 04 (2015) 024 Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint

2015-02-04
07:36
 Two-pion femtoscopy in p-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV / ALICE Collaboration We report the results of the femtoscopic analysis of pairs of identical pions measured in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV. Femtoscopic radii are determined as a function of event multiplicity and pair momentum in three spatial dimensions. [...] arXiv:1502.00559; CERN-PH-EP-2015-019.- 2015 - 28 p. - Published in : Phys. Rev. C 91 (2015) 034906 Fulltext: PDF; External link: Preprint

2015-02-01
21:05
 Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at $\sqrt{s}$ = 8 TeV / CMS Collaboration An inclusive search for supersymmetry in events with at least one bottom-quark jet is performed using proton-proton collision data collected by the CMS experiment in 2012 at a center-of-mass energy of 8 TeV. The data set size corresponds to an integrated luminosity of 19.3 fb$^{-1}$. [...] arXiv:1502.00300; CERN-PH-EP-2015-005; CMS-SUS-13-004.- Geneva : CERN, 2015 - 45 p. - Published in : Phys. Rev. D 91 (2015) 052018 Fulltext: PDF; External link: Preprint

2015-01-27
17:11
 Measurement of indirect CP asymmetries in $D^0 \to K^-K^+$ and $D^0 \to \pi^-\pi^+$ decays / LHCb Collaboration Time-dependent $CP$ asymmetries in the decay rates of the singly Cabibbo-suppressed decays $D^0\rightarrow K^-K^+$ and $D^0\rightarrow \pi^-\pi^+$ are measured in $pp$ collision data corresponding to an integrated luminosity of 3.0 fb$^{-1}$ collected by the LHCb experiment. The $D^0$ mesons are produced in semileptonic $b$-hadron decays, where the charge of the accompanying muon is used to determine the initial state as $D^0$ or $\bar{D}^0$. [...] arXiv:1501.06777; LHCB-PAPER-2014-069; CERN-PH-EP-2015-008.- Geneva : CERN, 2015 - 20 p. - Published in : J. High Energy Phys. 04 (2015) 043 Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint

2015-01-22
23:16
 Search for decays of stopped long-lived particles produced in proton-proton collisions at $\sqrt{s}$ = 8 TeV / CMS Collaboration A search has been performed for long-lived particles that could have come to rest within the CMS detector, using the time intervals between LHC beam crossings. The existence of such particles could be deduced from observation of their decays via energy deposits in the CMS calorimeter appearing at times that are well separated from any proton-proton collisions. [...] arXiv:1501.05603; CERN-PH-EP-2015-002; CMS-EXO-12-036.- Geneva : CERN, 2015 - 33 p. - Published in : Eur. Phys. J. C 75 (2015) 151 Fulltext: PDF; External link: Preprint