Showing 2012 · hep-exShow all

64 papers · 2 filters

hep-ex2012★ 11 cited

First observation of the decays and

LHCb collaboration, R. Aaij, C. Abellan Beteta +621

The first observation of the decays and are reported using an integrated luminosity of 1.0 fb recorded by the…

hep-ex2012★ 17 cited

Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays

BaBar Collaboration, J. P. Lees, V. Poireau +359

We report on a search for direct CP asymmetry in the singly Cabibbo-suppressed decay D+- --> K+ K- pi+- using a data sample of 476 fb-1 accumulated with the BaBar detector running…

hep-ex2012★ 53 cited

Measurement of J/psi production in pp collisions at sqrt(s)=2.76 TeV

LHCb collaboration, R. Aaij, C. Abellan Beteta +624

The production of J/psi mesons is studied with the LHCb detector using data from pp collisions at sqrt(s)=2.76 TeV corresponding to an integrated luminosity of 71 nb^-1. The differ…

hep-ex2012★ 12 cited

Search for charged massive long-lived particles at sqrt(s)= 1.96 TeV

D0 Collaboration

We present a search for charged massive long-lived particles (CMLLPs) that are pair produced in p-pbar collisions at sqrt(s)= 1.96 TeV collected by the D0 experiment at the Fermila…

hep-ex2012★ 26 cited

Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +622

This Letter reports a measurement of the CP violation observables S_J/ψKS0 and C_J/ψKS0 in the decay channel B0 -> J/ψ KS0 performed with 1.0/fb of pp collisions at sqrt(s) = 7 TeV…

hep-ex2012★ 231 cited

The T2K Neutrino Flux Prediction

T2K Collaboration, K. Abe, N. Abgrall +349

The Tokai-to-Kamioka (T2K) experiment studies neutrino oscillations using an off-axis muon neutrino beam with a peak energy of about 0.6 GeV that originates at the J-PARC accelerat…

hep-ex2012★ 42 cited

A model-independent Dalitz plot analysis of with () decays and constraints on the CKM angle

LHCb collaboration, R. Aaij, C. Abellan Beteta +617

A binned Dalitz plot analysis of decays, with and , is performed to measure the CP-violating observables $…

hep-ex2012★ 42 cited

Measurement of the differential photon+ c-jet cross section and the ratio of differential photon+ c and photon+ b cross sections in proton-antiproton collisions at sqrt(s) = 1.96 TeV

D0 Collaboration

We present measurements of the differential cross section for the associated production of a -quark jet and an isolated photon with rapidity and trans…

hep-ex2012★ 76 cited

Measurement of the D+/- production asymmetry in 7 TeV pp collisions

LHCb collaboration, R. Aaij, C. Abellan Beteta +619

The asymmetry in the production cross-section σof D+/- mesons, A_P = (σ(D+) - σ(D-))/(σ(D+) + σ(D-)), is measured in bins of pseudorapidity ηand transverse momentum p_T within the…

hep-ex2012★ 46 cited

First observation of the decay

LHCb Collaboration, R. Aaij, C. Abellan Beteta +621

A discovery of the rare decay is presented. This decay is observed for the first time, with 5.2 significance. The observation is made usin…

hep-ex2012★ 22 cited

Search for the rare decay KS -> mu+ mu-

LHCb collaboration, R. Aaij, C. Abellan Beteta +616

A search for the decay KS -> mu+ mu- is performed, based on a data sample of 1.0 fb^-1 of pp collisions at \sqrt{s}=7 TeV collected by the LHCb experiment at the Large Hadron Colli…

hep-ex2012★ 28 cited

Measurement of the fraction of \Y1S originating from \chib1P decays in collisions at $\sqrt{s} = 7\tev$

LHCb collaboration, R. Aaij, C. Abellan Beteta +616

The production of \chib1P mesons in collisions at a centre-of-mass energy of $7\tev$ is studied using $32\invpb$ of data collected with the \lhcb detector. The $\chib1P$ meson…

hep-ex2012★ 31 cited

Observation of the decay B0 -> D0bar K+ K- and evidence for Bs -> D0bar K+ K-

LHCb collaboration, R. Aaij, C. Abellan Beteta +621

The first observation of the decay B0 -> D0bar K+ K- is reported from an analysis of 0.62 fb-1 of pp collision data collected with the LHCb detector. Its branching fraction is meas…

hep-ex2012★ 269 cited

Measurement of the proton-air cross-section at TeV with the Pierre Auger Observatory

Pierre Auger Collaboration

We report a measurement of the proton-air cross-section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the distribution of the dep…

hep-ex2012★ 278 cited

Evidence for a particle produced in association with weak bosons and decaying to a bottom-antibottom quark pair in Higgs boson searches at the Tevatron

CDF Collaboration, D0 Collaboration

We combine searches by the CDF and D0 Collaborations for the associated production of a Higgs boson with a W or Z boson and subsequent decay of the Higgs boson to a bottom-antibott…

hep-ex2012★ 18 cited

Study of the baryonic B decay B- -> SigmaC++ p- pi- pi-

The BaBar Collaboration

We report the measurement of the baryonic B decay B- -> SigmaC++ p- pi- pi-. Using a data sample of 467*10^6 B B-bar pairs collected with the BaBar detector at the PEP-II storage r…

hep-ex2012★ 92 cited

Search for direct top squark pair production in final states with one isolated lepton, jets, and missing transverse momentum in sqrt(s) = 7 TeV pp collisions using 4.7 fb-1 of ATLAS data

ATLAS Collaboration

A search is presented for direct top squark pair production in final states with one isolated electron or muon, jets, and missing transverse momentum in proton-proton collisions at…

hep-ex2012★ 113 cited

Branching fraction and form-factor shape measurements of exclusive charmless semileptonic B decays, and determination of |V_{ub}|

BABAR Collaboration, J. P. Lees, V. Poireau +361

We report the results of a study of the exclusive charmless semileptonic decays, B^0 --> pi^- l^+ nu, B^+ --> pi^0 l^+ nu, B^+ --> omega l^+ nu, B^+ --> eta l^+ nu and B^+ --> eta^…

hep-ex2012★ 26 cited

Measurement of the branching fraction and angular amplitudes

LHCb collaboration, R. Aaij, C. Abellan Beteta +616

A search for the decay with is performed with 0.37 fb of collisions at = 7 TeV collected by the LHCb…

hep-ex2012★ 6 cited

Search for the decay modes D0 -> e+e-, D0 -> mu+mu-, and D0 -> e mu

The BABAR Collaboration

We present searches for the rare decay modes D0 to e+e-, D0 to mu+mu- and D0 to e mu in continuum e+e- to cbar c events recorded by the BABAR detector in a data sample that corresp…

hep-ex2012★ 157 cited

Combined search for the Standard Model Higgs boson in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

ATLAS Collaboration

A combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities from 4.6 fb^-1 to 4.9…

hep-ex2012★ 80 cited

Measurement of Atmospheric Neutrino Oscillations with the ANTARES Neutrino Telescope

ANTARES collaboration, S. Adrian-Martinez, I. Al Samarai +157

The data taken with the ANTARES neutrino telescope from 2007 to 2010, a total live time of 863 days, are used to measure the oscillation parameters of atmospheric neutrinos. Muon t…

hep-ex2012★ 41 cited

Combined search for the standard model Higgs boson decaying to b bbar using the D0 Run II data set

D0 Collaboration

We present the results of the combination of searches for the standard model Higgs boson produced in association with a W or Z boson and decaying into b bbar using the data sample…

hep-ex2012★ 156 cited

Observation of Time Reversal Violation in the B0 Meson System

The BABAR Collaboration, J. P. Lees, V. Poireau +364

Although CP violation in the B meson system has been well established by the B factories, there has been no direct observation of time reversal violation. The decays of entangled n…