Showing papers in "Nuclear Physics in 2014"

TL;DR: This paper derived integrable theories interpolating between exact CFT WZW models and non-Abelian T-duals of principal chiral models or geometric coset models.

TL;DR: In this paper, the NNPDFpol1.1.0 set of spin-dependent parton distribution functions (PDFs) and their uncertainties were used for the first time.

TL;DR: In this paper, the authors discuss the properties of electromagnetic fields in heavy-ion collisions and consequences for observables, including quantitatively the issue of the magnetic field lifetime in a collision including the electric and chiral magnetic conductivities.

TL;DR: In this article, the leading-order Lagrangian of the Standard Model with a light scalar boson was constructed at the weak scale v = 246 GeV and the symmetry breaking scale Λ was taken to be at 4 π v or above.

TL;DR: In this paper, a class of non-polynomial higher derivative theories of gravity that realize a ultraviolet (UV) completion of Einstein general relativity were introduced and extensively studied, and it was shown that these theories are unitary (ghost free) and at most only one-loop divergences survive.

TL;DR: In this paper, the authors derived the symmetry coefficients from Skyrme-Hartree-Fock (SHF) and IAS (Isobaric analog states) calculations on a nucleus-by-nucleus basis.

TL;DR: In this paper, the authors take a bootstrap approach by considering an abstract situation, in which an anyon condensation happens in a 2-d topological phase with anyonic excitations given by a modular tensor category C ; and the anyons in the condensed phase are given by another modular tensors category D.

TL;DR: In this article, a lattice QCD calculation of the up, down, strange and charm quark masses performed using the gauge configurations produced by the European Twisted Mass Collaboration with N f = 2 + 1 + 1 dynamical quarks, which include in the sea, besides two light mass degenerate quarks with masses close to their physical values, was presented.

TL;DR: Chen and Trautner as discussed by the authors showed that CP violation can have pure group-theoretic origin and can be related to the complexity of some Clebsch-Gordan coefficients.

TL;DR: In this paper, a fully flavour-covariant formalism for transport phenomena is presented, by deriving Markovian master equations that describe the time-evolution of particle number densities in a statistical ensemble with arbitrary flavour content.

TL;DR: In this paper, the authors consider QCD radiative corrections to the production of colorless high-mass systems in hadron collisions and show that the hard factor is directly related to the all-order virtual amplitude of the corresponding partonic process.

TL;DR: In this article, the three-loop matching coefficient C H H H, required for a consistent description of Higgs boson pair production in gluon fusion through next-to-nextto-leading order QCD in the heavy top quark approximation, was calculated.

TL;DR: In this paper, the section condition in double field theory has been shown to imply that a physical point should be one-to-one identified with a gauge orbit in the doubled coordinate space.

TL;DR: In this article, the interpretation of measurements of hadron yields in hadronic interactions within the framework of thermal models, over a broad energy range (from SIS to LHC energies, s NN ≃ 2.5 GeV − 5 TeV ).

TL;DR: In this paper, the soft-virtual corrections to Higgs boson production at N3LO were exploited to extract the general expression of the hard-virtual coefficient that contributes to threshold resummation at N 3LL accuracy.

TL;DR: In this article, the decay mode X(3872) -> psi(2S)gamma in B+ -> X( 3872)K+ decays with a significance of 4.4 standard deviations.

TL;DR: In this paper, a simple extension of the Standard Model involving additional fermionic singlets and assuming an underlying inverse seesaw mechanism (with one or more right-handed neutrinos and oneor more sterile fermions) for neutrino mass generation is considered.

TL;DR: In this paper, the authors studied F-theory compactifications with up to two Abelian gauge group factors that are based on elliptically fibred Calabi-Yau 4-folds describable as generic hypersurfaces.

TL;DR: In this article, a framework for the calculation of the mixed QCD-electroweak O( α s α ) corrections to Drell-Yan processes in the resonance region is established.

TL;DR: In this paper, the single trace heterotic N-point tree-level gauge amplitude ANHET can be obtained from the corresponding type I amplitude ANI by the single-valued projection.

TL;DR: In this article, a new class of identities for Feynman graph amplitudes, dubbed Schouten identities, was proposed, valid at fixed integer value of the dimension d. The identities are then used in the case of the two-loop sunrise graph with arbitrary masses for recovering the second-order differential equation for the scalar amplitude in d = 2 dimensions, as well as a chained set of equations for all the coefficients of the expansions in ( d − 2 ).

TL;DR: In this paper, the exact form of the dispersion relation for light-cone string excitations in string theory in AdS3×S 3×T4 with mixed R-R and NS-NS 3-form fluxes was addressed.

TL;DR: In this paper, a measurement of the total pp cross section at the LHC at root s = 7 TeV is presented, where an integrated luminosity of 80 mu b(-1) was accumulated in order to measure the differential elastic cross section as a function of the Mandelstam momentum transfer variable t.

TL;DR: In this paper, the authors present a new approach to computing event shape distributions or, more precisely, charge flow correlations in a generic conformal field theory (CFT) by using Wightman correlation functions in a certain limit.

TL;DR: In this paper, the results of the fits to precision measurements are used to make a determination of the nonperturbative transverse momentum dependent gluon density function, including experimental and theoretical uncertainties.

TL;DR: Quantum link models as discussed by the authors provide an alternative nonperturbative formulation of Abelian and non-Abelian lattice gauge theories, and are ideally suited for quantum simulation, for example, using ultracold atoms in an optical lattice.

TL;DR: In this paper, the decay constants of the lowest c c ¯ -state with quantum numbers J P C = 0 − + ( η c ), 1 − − ( J / ψ ), and 1 + − ( h c ) by using lattice QCD and QCD sum rules were derived.

TL;DR: In this article, the energy scale dependence of the QCD spectral densities of the hidden bottom tetraquark states in detail for the first time, and suggest a formula μ = M X / Y / Z 2 − (2 M b ) 2 with the effective mass M b = 5.13 GeV to determine the energy scales.

TL;DR: In this article, the role of the large double logarithmic corrections, ∼ α s ln 2 L / τ 0, was investigated in the study of p ⊥ -broadening by Liou, Mueller and Wu.