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On the basis of perturbative QCD and the relativistic quark model we calculate relativistic corrections to the double $\eta_c$ meson production in proton-proton interactions at LHC energies. Relativistic terms in the production amplitude…

High Energy Physics - Phenomenology · Physics 2015-06-15 A. P. Martynenko , A. M. Trunin

The two key observables related to heavy quarks that have been measured in RHIC and LHC energies are the nuclear suppression factor $R_{AA}$ and the elliptic flow $v_2$. Simultaneous description of these two observables is a top challenge…

Nuclear Theory · Physics 2016-01-20 Santosh K. Das , Francesco Scardina , Salvatore Plumari , Vincenzo Greco

We derive factorization theorems for Lambda_QCD/mb power corrections to inclusive B-decays in the endpoint region, where mX^2 ~mb Lambda_QCD. In B-> Xu e nu our results are for the full triply differential rate. A complete enumeration of…

High Energy Physics - Phenomenology · Physics 2011-01-27 Keith S. M. Lee , Iain W. Stewart

In the heavy quark limit, the form factors for semileptonic and rare radiative B decays into light mesons are related by heavy quark spin symmetry. Here we compute the leading corrections of order \Lambda/m_Q to these symmetry relations,…

High Energy Physics - Phenomenology · Physics 2009-11-07 Benjamin Grinstein , Dan Pirjol

We study the effects of bulk viscosity on pT spectra and elliptic flow in heavy ion collisions. For this purpose we compute the dissipative correction df to the single particle distribution functions in leading-log QCD, and in several…

High Energy Physics - Phenomenology · Physics 2013-05-30 Kevin Dusling , Thomas Schaefer

Gauge/gravity duality relates an AdS black hole with uniform boost with a boosted strongly-coupled CFT at finite temperature. We study the perturbative change in holographic entanglement entropy for strip sub-region in such gravity…

High Energy Physics - Theory · Physics 2021-04-20 Sabyasachi Maulik , Harvendra Singh

The leptonic radiative decay $B \to \gamma l\nu$ is of great importance in the determination of $B$ meson wave functions, and evaluating the form factors $ F_{V,A}$ are the essential problem on the study of this channel. We computed…

High Energy Physics - Phenomenology · Physics 2019-01-16 Yue-Long Shen , Zhi-Tian Zou , Yan-Bing Wei

In the context of gravitational theories describing renormalization group flows across dimensions via AdS/CFT, we study the role of higher-derivative corrections to Einstein gravity. We use the Null Energy Condition to derive monotonicity…

High Energy Physics - Theory · Physics 2023-08-25 Evan Deddo , James T. Liu , Leopoldo A. Pando Zayas , Robert J. Saskowski

For radially excited heavy quarkonia $ V=\psi(2S) $ and $ \Upsilon(2S) $, the nodal structure of their wave function renders the three-gluon decay $ V\to ggg $ acutely sensitive to relativistic corrections, presenting a longstanding…

High Energy Physics - Phenomenology · Physics 2026-03-12 Chao-Jie Fan , Jun-Kang He

Recently, Verlinde discussed that gravity can be understood as an entropic force caused by changes in the information associated with the positions of material bodies. In the Verlinde's argument, the area law of the black hole entropy plays…

General Relativity and Quantum Cosmology · Physics 2010-05-19 Ahmad Sheykhi

A brief review of recent studies on suppression of bottomonia in an anisotropic quark-gluon plasma created in heavy-ion collisions at the LHC is presented. A reasonable agreement between the model predictions for the inclusive $R_{\rm AA}$…

High Energy Physics - Phenomenology · Physics 2017-04-05 Radoslaw Ryblewski

Entropy production in the compression stage of heavy ion collisions is discussed within three distinct macroscopic models (i.e. generalized RHTA, geometrical overlap model and three-fluid hydrodynamics). We find that within these models…

Nuclear Theory · Physics 2009-10-31 M. Reiter , A. Dumitru , J. Brachmann , J. A. Maruhn , H. Stöcker , W. Greiner

Resonance states of a two-electron quantum dot are studied using a variational expansion with both real basis-set functions and complex scaling methods. The two-electron entanglement (linear entropy) is calculated as a function of the…

Quantum Physics · Physics 2010-04-29 Federico M. Pont , Omar Osenda , Pablo Serra , Julio H. Toloza

A Q-Qbar bound state represents a balance between repulsive kinetic and attractive potential energy. In a hot quark-gluon plasma, the interaction potential experiences medium effects. Color screening modifies the attractive binding force…

High Energy Physics - Phenomenology · Physics 2015-05-20 Helmut Satz

The entropic force exerted by the Brownian fluctuations of a grafted semiflexible polymer upon a rigid smooth wall are calculated both analytically and by Monte Carlo simulations. Such forces are thought to play an important role for…

Soft Condensed Matter · Physics 2007-05-23 Azam Gholami , Jan Wilhelm , Erwin Frey

Comparison of heavy-ion experiments to fluid dynamics simulations requires the conversion of the fluid to particles. Extending the approach in Molnar & Wolff, PRC 95, 024903 (2017), this work presents self-consistent bulk viscous…

Nuclear Theory · Physics 2021-01-01 Denes Molnar

The effective action for quantum gravity coupled to matter contains corrections arising from the functional measure. We analyse the effect of such corrections for anisotropic self-gravitating compact objects described by means of the…

General Relativity and Quantum Cosmology · Physics 2025-07-29 R. Casadio , I. Kuntz , R. da Rocha

We investigate entanglement production by inhomogeneous perturbations over a homogeneous and isotropic cosmic background, demonstrating that the interplay between quantum and geometric effects can have relevant consequences on entanglement…

General Relativity and Quantum Cosmology · Physics 2022-10-17 Alessio Belfiglio , Orlando Luongo , Stefano Mancini

The baryon differential spectrum of the baryon decay $\Lambda_b \to \Lambda_c \ell \bar{\nu}_\ell$ will be measured in detail at LHCb. We obtain new results on the form factors in the heavy quark expansion of Heavy Quark Effective Theory…

High Energy Physics - Phenomenology · Physics 2015-06-04 F. Jugeau , Yu Jia , L. Oliver

In earlier publications we have analyzed the strong and radiative decays of heavy hadrons in a formalism which incorporates both heavy-quark and chiral symmetries. In particular, we have derived a heavy-hadron chiral Lagrangian whose…

High Energy Physics - Phenomenology · Physics 2009-10-22 H. Y. Cheng , C. Y. Cheung , G. L. Lin , Y. C. Lin , T. M. Yan , H. L. Yu