Results 1 to 10 of about 67,186 (191)
Regge trajectories for the heavy-light diquarks
Journal of High Energy Physics, 2023 We attempt to apply the Regge trajectory approach to the heavy-light diquarks composed of one heavy quark and one light quark. However, we find that the direct application of the usual Regge trajectory formula for the heavy-light mesons and baryons fails.
Jiao-Kai Chen, Xia Feng, Jia-Qi Xie
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χ c1(2p): an overshadowed charmoniumlike resonance
Journal of High Energy Physics, 2023 A thorough study of the J PC = 1++ elastic D 0 D ¯ ∗ 0 $$ {D}^0{\overline{D}}^{\ast 0} $$ and D + D ∗− scattering, where the form of the meson-meson interaction is inferred from lattice QCD calculations of string breaking, is carried out for center-of ...
R. Bruschini, P. González
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Heavy-quark spin symmetry breaking in the Born-Oppenheimer approximation
Journal of High Energy Physics, 2023 Heavy-quark spin symmetry is explicitly broken by the mass splitting between a heavy-light pseudoscalar meson and its vector partner. This fact plays a pivotal role in the physics of states whose mass lies close to the threshold of an open-flavor meson ...
R. Bruschini
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Journal of High Energy Physics, 2023 We revisit the next-to-leading order (NLO) perturbative QCD corrections for the deeply virtual meson production (DVMP) process, exploring its phenomenology both in isolation and in a multichannel fit combined with deeply virtual Compton scattering (DVCS).
Marija Čuić +3 more
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Electromagnetic and gravitational local spatial densities for spin-1 systems
Journal of High Energy Physics, 2023 The matrix elements of the electromagnetic current and the energy-momentum tensor for sharply localized states of spin-1 systems are considered. Their interpretation as local spatial densities of various characteristics of the considered system is ...
J. Yu. Panteleeva +3 more
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The mass spectrum and wave functions of the B c system
Journal of High Energy Physics, 2022 The spectrum and relativistic wave functions of B c system are investigated via solving the complete Salpeter equation. Emphases are put on the study of the partial waves of each J P state.
Guo-Li Wang +3 more
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Journal of High Energy Physics, 2023 We study the exclusive diffractive c c ¯ $$ c\overline{c} $$ photoproduction in ultraperipheral pA collisions. The formalism makes use of off-diagonal generalizations of the unintegrated gluon distribution, the so-called generalized transverse momentum ...
Barbara Linek +5 more
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Generalized parton distributions through universal moment parameterization: zero skewness case
Journal of High Energy Physics, 2022 We present a global analysis program for the generalized parton distributions (GPDs) based on conformal moment expansion. We apply the strategy of universal moment parameterization to fit both the collinear parton distribution functions (PDFs) from ...
Yuxun Guo, Xiangdong Ji, Kyle Shiells
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Journal of High Energy Physics, 2023 Multi-parton distributions in a proton, the nonperturbative quantities needed to make predictions for multiple scattering rates, are poorly constrained from theory and data and must be modelled.
Oleh Fedkevych, Jonathan R. Gaunt
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Fitting a deep generative hadronization model
Journal of High Energy Physics, 2023 Hadronization is a critical step in the simulation of high-energy particle and nuclear physics experiments. As there is no first principles understanding of this process, physically-inspired hadronization models have a large number of parameters that are
Jay Chan +5 more
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