PRD: Experiment

Search for Lorentz invariance and CPT violation with muon antineutrinos in the MINOS Near Detector

P. Adamson et al. (The MINOS Collaboration) — 2012-02-09T10:00:00-05:00

Author(s): P. Adamson et al. (The MINOS Collaboration)

We have searched for sidereal variations in the rate of antineutrino interactions in the MINOS Near Detector. Using antineutrinos produced by the NuMI beam, we find no statistically significant sidereal modulation in the rate. When this result is placed in the context of the Standard Model Extension...

[Phys. Rev. D 85, 031101] Published Thu Feb 09, 2012

Improvement of the performance of a classical matched filter by an independent component analysis preprocessing

R. De Rosa, L. A. Forte, F. Garufi, and L. Milano — 2012-02-07T10:00:00-05:00

Author(s): R. De Rosa, L. A. Forte, F. Garufi, and L. Milano

Current gravitational wave searches for compact binaries coalescence are done using a bank of templates (matched filters) on each running detector. Given a network of interferometers, we propose to use a denoising strategy based on an independent component analysis which considers two interferometer...

[Phys. Rev. D 85, 042001] Published Tue Feb 07, 2012

Measurement of the rapidity and transverse momentum distributions of Z bosons in pp collisions at sqrt[(]s)=7 TeV

S. Chatrchyan et al. (CMS Collaboration) — 2012-02-07T10:00:00-05:00

Author(s): S. Chatrchyan et al. (CMS Collaboration)

Measurements of the normalized rapidity (y) and transverse-momentum (q_T) distributions of Drell–Yan muon and electron pairs in the Z-boson mass region (60<M_ℓℓ<120 GeV) are reported. The results are obtained using a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, c...

[Phys. Rev. D 85, 032002] Published Tue Feb 07, 2012

Search for the rare radiative decay W→πγ in pp[over ¯] collisions at sqrt[s]=1.96 TeV

T. Aaltonen et al. (CDF Collaboration) — 2012-02-02T10:00:00-05:00

Author(s): T. Aaltonen et al. (CDF Collaboration)

We present a search for the rare radiative decay W^±→π^±γ using data corresponding to an integrated luminosity of 4.3 fb^-1 of proton-antiproton collisions at a center-of-mass energy of 1.96 TeV collected by the CDF experiment at Fermilab. As no statistically significant signal is observed, we set a 9...

[Phys. Rev. D 85, 032001] Published Thu Feb 02, 2012

Measurement of CP-violating asymmetries in D^{0}→π^{+}π^{-} and D^{0}→K^{+}K^{-} decays at CDF

T. Aaltonen et al. (CDF Collaboration) — 2012-01-27T10:00:00-05:00

Author(s): T. Aaltonen et al. (CDF Collaboration)

We report on a measurement of CP-violating asymmetries (A_CP) in the Cabibbo-suppressed D⁰→π⁺π^- and D⁰→K⁺K^- decays reconstructed in a data sample corresponding to 5.9 fb^-1 of integrated luminosity collected by the upgraded Collider Detector at Fermilab. We use the strong decay D^*+→D⁰π⁺ to identify t...

[Phys. Rev. D 85, 012009] Published Fri Jan 27, 2012

Search for new phenomena in events with two Z bosons and missing transverse momentum in pp[over ¯] collisions at sqrt[s]=1.96 TeV

T. Aaltonen et al. (CDF Collaboration) — 2012-01-26T10:00:00-05:00

Author(s): T. Aaltonen et al. (CDF Collaboration)

We present a search for new phenomena in events with two reconstructed Z bosons and large missing transverse momentum, sensitive to processes pp̅ →X₂X₂→ZZX₁X₁, where X₂ is an unstable particle decaying as X₂→ZX₁ and X₁ is undetected. The particles X₁ and X₂ may be, among other possibilities, ...

[Phys. Rev. D 85, 011104] Published Thu Jan 26, 2012

Search for high-mass resonances decaying into ZZ in pp[over ¯] collisions at sqrt[s]=1.96 TeV

T. Aaltonen et al. (CDF Collaboration) — 2012-01-24T10:00:00-05:00

Author(s): T. Aaltonen et al. (CDF Collaboration)

We search for high-mass resonances decaying into Z boson pairs using data corresponding to 6 fb^-1 collected by the CDF experiment in pp̅ collisions at √s=1.96 TeV. The search is performed in three distinct final states: ZZ→ℓ⁺ℓ^-ℓ⁺ℓ^-, ZZ→ℓ⁺ℓ^-νν, and ZZ→ℓ⁺ℓ^-jj. For a Randall-Sundrum graviton ...

[Phys. Rev. D 85, 012008] Published Tue Jan 24, 2012

Search for heavy metastable particles decaying to jet pairs in pp[over ¯] collisions at sqrt[s]=1.96 TeV

T. Aaltonen et al. (CDF Collaboration) — 2012-01-24T10:00:00-05:00

Author(s): T. Aaltonen et al. (CDF Collaboration)

A search is performed for heavy metastable particles that decay into jet pairs with a macroscopic lifetime (cτ∼1 cm) in pp̅ collisions at √s=1.96 TeV using data from the CDF II detector at Fermilab corresponding to an integrated luminosity of 3.2 fb^-1. To estimate the standard model backg...

[Phys. Rev. D 85, 012007] Published Tue Jan 24, 2012

Measurement of the relative branching ratio of B_{s}^{0}→J/ψf_{0}(980) to B_{s}^{0}→J/ψϕ

V. M. Abazov et al. (The D0 Collaboration) — 2012-01-20T10:00:00-05:00

Author(s): V. M. Abazov et al. (The D0 Collaboration)

We present a measurement of the relative branching fraction, R_f₀/ϕ, of B_s⁰→J/ψf₀(980), with f₀(980)→π⁺π^-, to the process B_s⁰→J/ψϕ, with ϕ→K⁺K^-. The J/ψf₀(980) final state corresponds to a CP-odd eigenstate of B_s⁰ that could be of interest in future studies of CP violation. Using 8 fb^-1 of data reco...

[Phys. Rev. D 85, 011103] Published Fri Jan 20, 2012

Search for supersymmetry in final states with jets, missing transverse momentum and one isolated lepton in sqrt[s]=7 TeV pp collisions using 1 fb^{-1} of ATLAS data

G. Aad et al. (ATLAS Collaboration) — 2012-01-18T10:00:00-05:00

Author(s): G. Aad et al. (ATLAS Collaboration)

We present an update of a search for supersymmetry in final states containing jets, missing transverse momentum, and one isolated electron or muon, using 1.04 fb^-1 of proton-proton collision data at √s=7 TeV recorded by the ATLAS experiment at the LHC in the first half of 2011. The analysis is car...

[Phys. Rev. D 85, 012006] Published Wed Jan 18, 2012

Measurement of the transverse momentum distribution of W bosons in pp collisions at sqrt[s]=7 TeV with the ATLAS detector

G. Aad et al. (ATLAS Collaboration) — 2012-01-18T10:00:00-05:00

Author(s): G. Aad et al. (ATLAS Collaboration)

This paper describes a measurement of the W boson transverse momentum distribution using ATLAS pp collision data from the 2010 run of the LHC at √s=7 TeV, corresponding to an integrated luminosity of about 31 pb^-1. Events form both W→eν and W→μν are used, and the transverse momentum of the W candi...

[Phys. Rev. D 85, 012005] Published Wed Jan 18, 2012

Measurement of the cosmic ray antiproton/proton flux ratio at TeV energies with the ARGO-YBJ detector

B. Bartoli et al. (ARGO-YBJ Collaboration) — 2012-01-13T10:00:00-05:00

Author(s): B. Bartoli et al. (ARGO-YBJ Collaboration)

Cosmic ray antiprotons provide an important probe to study the cosmic ray propagation in the interstellar space and to investigate the existence of dark matter. Acting the Earth-Moon system as a magnetic spectrometer, paths of primary antiprotons are deflected in the opposite sense with respect to t...

[Phys. Rev. D 85, 022002] Published Fri Jan 13, 2012

Search for B[over ¯]→Λ_{c}^{+}Xℓ^{-}ν[over ¯]_{ℓ} decays in events with a fully reconstructed B meson

J. P. Lees et al. (The BABAR Collaboration) — 2012-01-12T10:00:00-05:00

Author(s): J. P. Lees et al. (The BABAR Collaboration)

We present a search for semileptonic B decays to the charmed baryon Λ_c⁺ based on 420 fb^-1 of data collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e⁺e^- storage rings. By fully reconstructing the recoiling B in a hadronic decay mode, we reduce non-B backgrounds and determine th...

[Phys. Rev. D 85, 011102] Published Thu Jan 12, 2012

Inclusive search for squarks and gluinos in pp collisions at sqrt[s]=7 TeV

S. Chatrchyan et al. (CMS Collaboration) — 2012-01-11T10:00:00-05:00

Author(s): S. Chatrchyan et al. (CMS Collaboration)

A search is performed for heavy particle pairs produced in √s=7 TeV proton-proton collisions with 35 pb^-1 of data collected by the CMS experiment at the LHC. The search is sensitive to squarks and gluinos of generic supersymmetry models, provided they are kinematically accessible, with minimal ass...

[Phys. Rev. D 85, 012004] Published Wed Jan 11, 2012

Measurement of the isolated diphoton cross section in pp collisions at sqrt[s]=7 TeV with the ATLAS detector

G. Aad et al. (ATLAS Collaboration) — 2012-01-11T10:00:00-05:00

Author(s): G. Aad et al. (ATLAS Collaboration)

The ATLAS experiment has measured the production cross section of events with two isolated photons in the final state, in proton-proton collisions at √s=7 TeV. The full data set acquired in 2010 is used, corresponding to an integrated luminosity of 37 pb^-1. The background, consisting of hadronic j...

[Phys. Rev. D 85, 012003] Published Wed Jan 11, 2012

Search for WZ+ZZ production with missing transverse energy+jets with b enhancement at sqrt[s]=1.96 TeV

T. Aaltonen et al. (CDF Collaboration) — 2012-01-06T10:00:00-05:00

Author(s): T. Aaltonen et al. (CDF Collaboration)

Diboson production (WW+WZ+ZZ) has been observed at the Tevatron in hadronic decay modes dominated by the WW process. This paper describes the measurement of the cross section of WZ and ZZ events in final states with large E̸_T and using b-jet identification as a tool to suppress WW contributions. Bec...

[Phys. Rev. D 85, 012002] Published Fri Jan 06, 2012

K_{s}^{0} and Λ production in pp interactions at sqrt[s]=0.9 and 7 TeV measured with the ATLAS detector at the LHC

G. Aad et al. (ATLAS Collaboration) — 2012-01-06T10:00:00-05:00

Author(s): G. Aad et al. (ATLAS Collaboration)

The production of K_S⁰ and Λ hadrons is studied in pp collision data at √s=0.9 and 7 TeV collected with the ATLAS detector at the LHC using a minimum-bias trigger. The observed distributions of transverse momentum, rapidity, and multiplicity are corrected to hadron level in a model-independent way wi...

[Phys. Rev. D 85, 012001] Published Fri Jan 06, 2012

All-sky search for periodic gravitational waves in the full S5 LIGO data

J. Abadie et al. (The LIGO Scientific Collaboration, The Virgo Collaboration) — 2012-01-05T10:00:00-05:00

Author(s): J. Abadie et al. (The LIGO Scientific Collaboration, The Virgo Collaboration)

We report on an all-sky search for periodic gravitational waves in the frequency band 50–800 Hz and with the frequency time derivative in the range of 0 through -6×10^-9 Hz/s. Such a signal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our Galaxy. After...

[Phys. Rev. D 85, 022001] Published Thu Jan 05, 2012

Measurement of the semileptonic branching fraction of the B_{s} meson

J. P. Lees et al. (BABAR Collaboration) — 2012-01-03T10:00:00-05:00

Author(s): J. P. Lees et al. (BABAR Collaboration)

We report a measurement of the inclusive semileptonic branching fraction of the B_s meson using data collected with the BABAR detector in the center-of-mass energy region above the Υ(4S) resonance. We use the inclusive yield of ϕ mesons and the ϕ yield in association with a high-momentum lepton to pe...

[Phys. Rev. D 85, 011101] Published Tue Jan 03, 2012

Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory

P. Abreu et al. — 2011-12-30T10:00:00-05:00

Author(s): P. Abreu et al.

The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavors above 0.1 EeV. These interact through charged and neutral currents in the atmosphere giving rise to extensive air showers. When interacting deeply in the atmosphere at nearly horizontal incidence, neutrinos...

[Phys. Rev. D 84, 122005] Published Fri Dec 30, 2011

Amplitude analyses of the decays χ_{c1}→ηπ^{+}π^{-} and χ_{c1}→η^{′}π^{+}π^{-}

G. S. Adams et al. (CLEO Collaboration) — 2011-12-29T10:00:00-05:00

Author(s): G. S. Adams et al. (CLEO Collaboration)

Using a data sample of 2.59×10⁷ ψ(2S) decays obtained with the CLEO-c detector, we perform amplitude analyses of the complementary decay chains ψ(2S)→γχ_c1; χ_c1→ηπ⁺π^- and ψ(2S)→γχ_c1; χ_c1→η^′π⁺π^-. We find evidence for an exotic P-wave η^′π amplitude, which, if interpreted as a resonance, would have para...

[Phys. Rev. D 84, 112009] Published Thu Dec 29, 2011

Student-t based filter for robust signal detection

Christian Röver — 2011-12-28T10:00:00-05:00

Author(s): Christian Röver

The search for gravitational-wave signals in detector data is often hampered by the fact that many data analysis methods are based on the theory of stationary Gaussian noise, while actual measurement data frequently exhibit clear departures from these assumptions. Deriving methods from models more c...

[Phys. Rev. D 84, 122004] Published Wed Dec 28, 2011

Search for CP violation in D^{+}→K^{-}K^{+}π^{+} decays

R. Aaij et al. (LHCb Collaboration) — 2011-12-28T10:00:00-05:00

Author(s): R. Aaij et al. (LHCb Collaboration)

A model-independent search for direct CP violation in the Cabibbo-suppressed decay D⁺→K^-K⁺π⁺ in a sample of approximately 370 000 decays is carried out. The data were collected by the LHCb experiment in 2010 and correspond to an integrated luminosity of 35 pb^-1. The normalized Dalitz plot distribut...

[Phys. Rev. D 84, 112008] Published Wed Dec 28, 2011

Branching fraction measurements of the color-suppressed decays B[over ¯]^{0} to D^{()0}π^{0}, D^{()0}η, D^{()0}ω, and D^{()0}η^{′} and measurement of the polarization in the decay B[over ¯]^{0}→D^{*0}ω

J. P. Lees et al. (The BABAR Collaboration) — 2011-12-16T10:00:00-05:00

Author(s): J. P. Lees et al. (The BABAR Collaboration)

We report updated branching fraction measurements of the color-suppressed decays B̅ ⁰→D⁰π⁰, D^*0π⁰, D⁰η, D^*0η, D⁰ω, D^*0ω, D⁰η^′, and D^*0η^′. We measure the branching fractions (×10^-4): B(B̅ ⁰→D⁰π⁰)=2.69±0.09±0.13, B(B̅ ⁰→D^*0π⁰)=3.05±0.14±0.28, B(B̅ ⁰→D⁰η)=2.53±0.09±0.11, B(B...

[Phys. Rev. D 84, 112007] Published Fri Dec 16, 2011

Quantitative analysis of LISA pathfinder test-mass noise

2011-12-15T10:00:00-05:00

Author(s): Luigi Ferraioli, Giuseppe Congedo, Mauro Hueller, Stefano Vitale, Martin Hewitson, Miquel Nofrarias, and Michele Armano

LISA Pathfinder (LPF) is a mission aiming to test the critical technology for the forthcoming space-based gravitational-wave detectors. The main scientific objective of the LPF mission is to demonstrate test masses free falling with residual accelerations below 3×10^-14 m s^-2/√Hz at 1 mHz. Reaching ...

[Phys. Rev. D 84, 122003] Published Thu Dec 15, 2011

Measurement of the Z→ττ cross section with the ATLAS detector

G. Aad et al. (ATLAS Collaboration) — 2011-12-14T10:00:00-05:00

Author(s): G. Aad et al. (ATLAS Collaboration)

The Z→ττ cross section is measured with the ATLAS experiment at the LHC in four different final states determined by the decay modes of the τ leptons: muon-hadron, electron-hadron, electron-muon, and muon-muon. The analysis is based on a data sample corresponding to an integrated luminosity of 36 p...

[Phys. Rev. D 84, 112006] Published Wed Dec 14, 2011

Femtoscopy of pp collisions at sqrt[s]=0.9 and 7 TeV at the LHC with two-pion Bose-Einstein correlations

K. Aamodt et al. (ALICE Collaboration) — 2011-12-14T10:00:00-05:00

Author(s): K. Aamodt et al. (ALICE Collaboration)

We report on the high statistics two-pion correlation functions from pp collisions at √s=0.9 TeV and √s=7 TeV, measured by the ALICE experiment at the Large Hadron Collider. The correlation functions as well as the extracted source radii scale with event multiplicity and pair momentum. When analyz...

[Phys. Rev. D 84, 112004] Published Wed Dec 14, 2011

Forward-backward asymmetry in top quark-antiquark production

V. M. Abazov et al. (The D0 Collaboration) — 2011-12-12T10:00:00-05:00

Author(s): V. M. Abazov et al. (The D0 Collaboration)

We present a measurement of forward-backward asymmetry in top quark-antiquark production in proton-antiproton collisions in the final state containing a lepton and at least four jets. Using a data set corresponding to an integrated luminosity of 5.4 fb^-1, collected by the D0 experiment at the Fermi...

[Phys. Rev. D 84, 112005] Published Mon Dec 12, 2011

Measuring gravitomagnetic effects by a multi-ring-laser gyroscope

2011-12-09T10:00:00-05:00

Author(s): F. Bosi, G. Cella, A. Di Virgilio, A. Ortolan, A. Porzio, S. Solimeno, M. Cerdonio, J. P. Zendri, M. Allegrini, J. Belfi, N. Beverini, B. Bouhadef, G. Carelli, I. Ferrante, E. Maccioni, R. Passaquieti, F. Stefani, M. L. Ruggiero, A. Tartaglia, K. U. Schreiber, A. Gebauer, and J-P. R. Wells

We propose an underground experiment to detect the general relativistic effects due to the curvature of space-time around the Earth (de Sitter effect) and to the rotation of the planet (dragging of the inertial frames or Lense-Thirring effect). It is based on the comparison between the IERS value of...

[Phys. Rev. D 84, 122002] Published Fri Dec 09, 2011

Upper limit on the electron antineutrino mass from the Troitsk experiment

2011-12-08T10:00:00-05:00

Author(s): V. N. Aseev, A. I. Belesev, A. I. Berlev, E. V. Geraskin, A. A. Golubev, N. A. Likhovid, V. M. Lobashev, A. A. Nozik, V. S. Pantuev, V. I. Parfenov, A. K. Skasyrskaya, F. V. Tkachov, and S. V. Zadorozhny

An electron antineutrino mass has been measured in tritium β decay in the Troitsk ν-mass experiment. The setup consists of a windowless gaseous tritium source and an electrostatic electron spectrometer. The whole data set acquired from 1994 to 2004 was reanalyzed. A thorough selection of data with t...

[Phys. Rev. D 84, 112003] Published Thu Dec 08, 2011

PRD: Experiment

Search for Lorentz invariance and CPT violation with muon antineutrinos in the MINOS Near Detector

Improvement of the performance of a classical matched filter by an independent component analysis preprocessing

Measurement of the rapidity and transverse momentum distributions of Z bosons in pp collisions at sqrt[(]s)=7 TeV

Search for the rare radiative decay W→πγ in pp[over ¯] collisions at sqrt[s]=1.96 TeV

Measurement of CP-violating asymmetries in D^{0}→π^{+}π^{-} and D^{0}→K^{+}K^{-} decays at CDF

Search for new phenomena in events with two Z bosons and missing transverse momentum in pp[over ¯] collisions at sqrt[s]=1.96 TeV

Search for high-mass resonances decaying into ZZ in pp[over ¯] collisions at sqrt[s]=1.96 TeV

Search for heavy metastable particles decaying to jet pairs in pp[over ¯] collisions at sqrt[s]=1.96 TeV

Measurement of the relative branching ratio of B_{s}^{0}→J/ψf_{0}(980) to B_{s}^{0}→J/ψϕ

Search for supersymmetry in final states with jets, missing transverse momentum and one isolated lepton in sqrt[s]=7 TeV pp collisions using 1 fb^{-1} of ATLAS data

Measurement of the transverse momentum distribution of W bosons in pp collisions at sqrt[s]=7 TeV with the ATLAS detector

Measurement of the cosmic ray antiproton/proton flux ratio at TeV energies with the ARGO-YBJ detector

Search for B[over ¯]→Λ_{c}^{+}Xℓ^{-}ν[over ¯]_{ℓ} decays in events with a fully reconstructed B meson

Inclusive search for squarks and gluinos in pp collisions at sqrt[s]=7 TeV

Measurement of the isolated diphoton cross section in pp collisions at sqrt[s]=7 TeV with the ATLAS detector

Search for WZ+ZZ production with missing transverse energy+jets with b enhancement at sqrt[s]=1.96 TeV

K_{s}^{0} and Λ production in pp interactions at sqrt[s]=0.9 and 7 TeV measured with the ATLAS detector at the LHC

All-sky search for periodic gravitational waves in the full S5 LIGO data

Measurement of the semileptonic branching fraction of the B_{s} meson

Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory

Amplitude analyses of the decays χ_{c1}→ηπ^{+}π^{-} and χ_{c1}→η^{′}π^{+}π^{-}

Student-t based filter for robust signal detection

Search for CP violation in D^{+}→K^{-}K^{+}π^{+} decays

Branching fraction measurements of the color-suppressed decays B[over ¯]^{0} to D^{(*)0}π^{0}, D^{(*)0}η, D^{(*)0}ω, and D^{(*)0}η^{′} and measurement of the polarization in the decay B[over ¯]^{0}→D^{*0}ω

Quantitative analysis of LISA pathfinder test-mass noise

Measurement of the Z→ττ cross section with the ATLAS detector

Femtoscopy of pp collisions at sqrt[s]=0.9 and 7 TeV at the LHC with two-pion Bose-Einstein correlations

Forward-backward asymmetry in top quark-antiquark production

Measuring gravitomagnetic effects by a multi-ring-laser gyroscope

Upper limit on the electron antineutrino mass from the Troitsk experiment

Branching fraction measurements of the color-suppressed decays B[over ¯]^{0} to D^{()0}π^{0}, D^{()0}η, D^{()0}ω, and D^{()0}η^{′} and measurement of the polarization in the decay B[over ¯]^{0}→D^{*0}ω