Results 11 to 20 of about 472,208 (268)
Quark: Controllable Text Generation with Reinforced Unlearning [PDF]
Neural Information Processing Systems, 2022 Large-scale language models often learn behaviors that are misaligned with user expectations. Generated text may contain offensive or toxic language, contain significant repetition, or be of a different sentiment than desired by the user. We consider the
Ximing Lu +7 more
semanticscholar +1 more source
Test of lepton universality in beauty-quark decays [PDF]
Nature Physics, 2021 The standard model of particle physics currently provides our best description of fundamental particles and their interactions. The theory predicts that the different charged leptons, the electron, muon and tau, have identical electroweak interaction ...
L. C. R. Aaij +499 more
semanticscholar +1 more source
Heavy Tetraquarks in the Relativistic Quark Model [PDF]
Universe, 2021 We give a review of the calculations of the masses of tetraquarks with two and four heavy quarks in the framework of the relativistic quark model based on the quasipotential approach and QCD.
R. Faustov, V. Galkin, E. M. Savchenko
semanticscholar +1 more source
Polarization and Vorticity in the Quark–Gluon Plasma [PDF]
Annual Review of Nuclear and Particle Science, 2020 The quark–gluon plasma (QGP) produced by collisions between ultrarelativistic heavy nuclei is well described in the language of hydrodynamics. Noncentral collisions are characterized by very large angular momentum, which in a fluid system manifests as ...
F. Becattini, M. Lisa
semanticscholar +1 more source
Tetra- and Penta-Quark Structures in the Constituent Quark Model [PDF]
Symmetry, 2020 With the development of high energy physics experiments, a large amount of exotic states in the hadronic sector have been observed. In order to shed some light on the nature of the tetraquark and pentaquark candidates, a constituent quark model, along ...
Gang Yang, J. Ping, J. Segovia
semanticscholar +1 more source
Evidence for quark-matter cores in massive neutron stars [PDF]
Nature Physics, 2019 The theory governing the strong nuclear force—quantum chromodynamics—predicts that at sufficiently high energy densities, hadronic nuclear matter undergoes a deconfinement transition to a new phase of quarks and gluons1.
Eemeli Annala +4 more
semanticscholar +1 more source
A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector [PDF]
Journal of High Energy Physics, 2019 A bstractWe present a novel framework for carrying out global analyses of the Standard Model Effective Field Theory (SMEFT) at dimension-six: SMEFiT.
N. Hartland +6 more
semanticscholar +1 more source
New Neutron Star Equation of State with Quark–Hadron Crossover [PDF]
Astrophysical Journal, 2019 We present a much improved equation of state for neutron star matter, QHC19, with a smooth crossover from the hadronic regime at lower densities to the quark regime at higher densities. We now use the Togashi et al. equation of state, a generalization of
G. Baym +4 more
semanticscholar +1 more source
Signatures of Quark-Hadron Phase Transitions in General-Relativistic Neutron-Star Mergers. [PDF]
Physical Review Letters, 2018 Merging binaries of neutron-stars are not only strong sources of gravitational waves, but also have the potential of revealing states of matter at densities and temperatures not accessible in laboratories.
E. Most +6 more
semanticscholar +1 more source
Higgs Boson Pair Production in Gluon Fusion at Next-to-Leading Order with Full Top-Quark Mass Dependence. [PDF]
Physical Review Letters, 2016 We present the calculation of the cross section and invariant mass distribution for Higgs boson pair production in gluon fusion at next-to-leading order (NLO) in QCD. Top-quark masses are fully taken into account throughout the calculation.
S. Borowka +7 more
semanticscholar +1 more source