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

Local non-Gaussianity, parametrized by f_NL, introduces a scale-dependent bias that is strongest at large scales, precisely where general relativistic (GR) effects also become significant. With future data, it should be possible to constrain f_NL=O(1) with high redshift surveys. GR corrections to the ...

[Phys. Rev. D 85, 041301] Published Wed Feb 08, 2012

We illustrate a technique for fitting lattice QCD correlators to sums of exponentials that is significantly faster than traditional fitting methods—10–40 times faster for the realistic examples we present. Our examples are drawn from a recent analysis of the Υ spectrum, and another recent analysis o...

[Phys. Rev. D 85, 031504] Published Wed Feb 08, 2012

We investigate the possible effects of short-baseline ν̅ _e disappearance implied by the reactor antineutrino anomaly on the Double-Chooz determination of ϑ₁₃ through the normalization of the initial antineutrino flux with the Bugey-4 measurement. We show that the effects are negligible and th...

[Phys. Rev. D 85, 031301] Published Wed Feb 08, 2012

We present a new determination of the B_s leptonic decay constant from lattice QCD simulations that use gluon configurations from MILC and a highly improved discretization of the relativistic quark action for both valence quarks. Our result, f_Bs=0.225(4)  GeV, is almost 3 times more accurate than pre...

[Phys. Rev. D 85, 031503] Published Tue Feb 07, 2012

Using a framework in which all elements are constrained by Dyson-Schwinger equation studies in QCD, and therefore incorporate a consistent, direct and simultaneous description of light- and heavy-quarks and the states they constitute, we analyze the accuracy of SU(4)-flavor symmetry relations betwee...

[Phys. Rev. D 85, 031502] Published Tue Feb 07, 2012

We revisit the bremsstrahlung process of a superluminal neutrino motivated by OPERA results. From a careful analysis of the plane-wave solutions of the superluminal neutrino, we find that the squared matrix elements contain additional terms from Lorentz violation due to the modified spin sum for the...

[Phys. Rev. D 85, 031901] Published Mon Feb 06, 2012

We present the cross section for production of a Z boson in association with four jets at the Large Hadron Collider, at next-to-leading order in the QCD coupling. When the Z decays to neutrinos, this process is a key irreducible background to many searches for new physics. Its computation has been m...

[Phys. Rev. D 85, 031501] Published Mon Feb 06, 2012

We show that, because of their effective electromagnetic interaction in matter, transition radiation is emitted whenever neutrinos goes across the boundary between two media with different indices of refraction. This effect occurs in the context of the standard model and does not depend on any exoti...

[Phys. Rev. D 85, 011303] Published Mon Jan 30, 2012

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

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

Motivated by the recent interest in light weakly interacting massive particles (WIMPs) of mass ∼O(10  GeV/c²), an extension of the elastic, spin-independent, WIMP-nucleon cross-section limits resulting from the CRESST-II commissioning run (2007) are presented. Previously, these data were used to set...

[Phys. Rev. D 85, 021301] Published Wed Jan 18, 2012

Data from the Liquid Scintillator Neutrino Detector and Mini-Booster Neutrino experiments, and the revised expectations of the antineutrino flux from nuclear reactors suggest the existence of eV-mass sterile neutrinos. The 3+2 and 1+3+1 scenarios accommodate all relevant short-baseline neutrino data...

[Phys. Rev. D 85, 011302] Published Wed Jan 18, 2012

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

We reanalyze the two- and three-pion mass distributions in the decays X(3872)→ρJ/ψ and X(3872)→ωJ/ψ and argue that the present data favor the 1⁺⁺ assignment for the quantum numbers of the X.

[Phys. Rev. D 85, 011501] Published Fri Jan 06, 2012

Current results of the MiniBooNE experiment show excess events that indicate neutrino oscillations, but only if one goes beyond the standard 3 family scenario. Recently a different explanation of the events has been given, not in terms of oscillations but by the production and decay of a massive ste...

[Phys. Rev. D 85, 011301] Published Fri Jan 06, 2012

The calculation of scattering amplitudes in Yang-Mills theory at loop level is important for the analysis of background processes at particle colliders as well as our understanding of perturbation theory at the quantum level. We present tools to derive relations for especially one-loop amplitudes, a...

[Phys. Rev. D 85, 021701] Published Wed Jan 04, 2012

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

Cold dark matter in the Milky Way halo may have structure defined by flows with low velocity dispersion. The Axion Dark Matter eXperiment high resolution channel is especially sensitive to axions in such low velocity dispersion flows. Results from a combined power spectra analysis of the high resolu...

[Phys. Rev. D 84, 121302] Published Wed Dec 28, 2011

In this note, we study the coupling of the technidilaton to the weak bosons. We consider two cases: (1) The dilaton directly couples to the weak bosons in a similar way as in the standard model. (2) The coupling in question is effectively induced only through the technifermion loops. In both cases, ...

[Phys. Rev. D 84, 111901] Published Tue Dec 27, 2011

We show that the discovery channel for dark matter (DM) production at colliders can be through flavor violating interactions resulting in a novel signature of a single top and large missing transverse energy. We discuss several examples where the production of DM is dominated by flavor violating cou...

[Phys. Rev. D 84, 111502] Published Tue Dec 27, 2011

We analyze the a set of 17 rotation curves of low surface brightness (LSB) galaxies from The HI Nearby Galaxy Survey (THINGS) with different mass models to study the core structure and to determine a phase transition energy scale (E_c) between hot and cold dark matter, due to nonperturbative effects ...

[Phys. Rev. D 84, 121301] Published Fri Dec 23, 2011

We examine the effect of the difference in nuclear interactions of K⁰ and K̅ ⁰ mesons on the measurement of CP asymmetry for experiments at e⁺e^- colliders—charm and B-meson factories. We find that this effect on CP asymmetry can be as large as 0.3%, and therefore sufficiently significant in i...

[Phys. Rev. D 84, 111501] Published Wed Dec 21, 2011

We show that the area-angular-momentum inequality A≥8π|J| holds for axially symmetric closed outermost stably marginally trapped surfaces. These are horizon sections (in particular, apparent horizons) contained in otherwise generic non-necessarily axisymmetric black hole spacetimes, with a non-negat...

[Phys. Rev. D 84, 121503] Published Wed Dec 07, 2011

C-theory provides a unified framework to study metric, metric-affine and more general theories of gravity. In the vacuum weak-field limit of these theories, the parameterized post-Newtonian parameters β and γ can differ from their general relativistic values. However, there are several classes of mo...

[Phys. Rev. D 84, 121502] Published Fri Dec 02, 2011

Polarization of light rotates in a gravitational field. The accrued phase is operationally meaningful only with respect to a local polarization basis. In stationary space-times, we construct local reference frames that allow us to isolate the Machian gravimagnetic effect from the geodetic (mass) con...

[Phys. Rev. D 84, 121501] Published Fri Dec 02, 2011

We report the first reconstruction in hadron collisions of the suppressed decays B^-→D(→K⁺π^-)K^- and B^-→D(→K⁺π^-)π^-, sensitive to the Cabibbo-Kobayashi-Maskawa phase γ, using data from 7  fb^-1 of integrated luminosity collected by the CDF II detector at the Tevatron collider. We reconstruct a signal fo...

[Phys. Rev. D 84, 091504] Published Wed Nov 30, 2011

The processes η_c^′→ρ⁰ρ⁰, K^*0K̅ ^*0, and ϕϕ are searched for using a sample of 1.06×10⁸ ψ^′ events collected with the BESIII detector at the BEPCII collider. No signals are observed in any of the three final states. The upper limits on the decay branching fractions are determined to be B(η_c^′→ρ⁰ρ⁰...

[Phys. Rev. D 84, 091102] Published Tue Nov 29, 2011

The OPERA Collaboration has reported the observation of superluminal muon neutrinos, whose speed v_ν exceeds that of light c, with (v_ν-c)/c≃2.5×10^-5. In a recent work, Cohen and Glashow have refuted this claim by noting that such neutrinos will lose energy, by pair emission of particles, at unaccepta...

[Phys. Rev. D 84, 091903] Published Mon Nov 28, 2011

We show that bound states moving in a finite periodic volume have an energy correction which is topological in origin and universal in character. The topological volume corrections contain information about the number and mass of the constituents of the bound states. These results have broad applica...

[Phys. Rev. D 84, 091503] Published Mon Nov 28, 2011