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We gauge the impact of soft-gluon resummation on quark distributions by performing a simple fit of Deep Inelastic Scattering structure function data using next-to-leading order (NLO) and next-to-leading-logarithmic (NLL)-resummed…

高能物理 - 唯象学 · 物理学 2009-11-11 Gennaro Corcella , Lorenzo Magnea

We present a new algorithm to construct a purely four dimensional representation of higher-order perturbative corrections to physical cross-sections at next-to-leading order (NLO). The algorithm is based on the loop-tree duality (LTD), and…

高能物理 - 唯象学 · 物理学 2016-09-12 German F. R. Sborlini , Felix Driencourt-Mangin , Roger Hernandez-Pinto , German Rodrigo

We provide the first next-to-leading-order (NLO) weak-coupling description of the thermalization process of far-from-equilibrium systems in non-abelian gauge theory. We study isotropic systems starting from either over- or under-occupied…

高能物理 - 唯象学 · 物理学 2022-04-13 Yu Fu , Jacopo Ghiglieri , Shahin Iqbal , Aleksi Kurkela

We compute the gluon beam function for jet-veto resummation to next-to-next-to-leading order (NNLO) in the strong-coupling expansion. Our calculation is based on an automated framework that was previously used for the computation of the…

高能物理 - 唯象学 · 物理学 2024-03-25 Guido Bell , Kevin Brune , Goutam Das , Ding Yu Shao , Marcel Wald

We study the thermodynamics of QCD in the limit of large flavor number (N_f) and test the proposal to resum the physics of hard thermal loops (HTL) through a nonperturbative expression for the entropy obtained from a Phi-derivable two-loop…

高能物理 - 唯象学 · 物理学 2009-11-11 Jean-Paul Blaizot , Andreas Ipp , Anton Rebhan , Urko Reinosa

The impact of non-extensive statistics on the hard thermal loop (HTL) resummation technique is investigated, in the absence and presence of a magnetic field. By utilizing the non-extensive bare propagators in the real-time formalism of…

高能物理 - 唯象学 · 物理学 2025-01-03 He-Xia Zhang , Yu-Xin Xiao

We calculate to next-to-leading order accuracy the high-energy elastic scattering cross section for an electron off of a classical point source. We use the $\overline{\mathrm{MS}}$ renormalization scheme to tame the ultraviolet divergences…

高能物理 - 唯象学 · 物理学 2017-07-03 Abdullah Khalil

In this proceedings we present a state-of-the-art method of calculating thermodynamic potential at finite temperature and finite chemical potential, using Hard Thermal Loop perturbation theory (HTLpt) up to next-to-next-leading-order…

高能物理 - 唯象学 · 物理学 2016-03-03 Aritra Bandyopadhyay , Najmul Haque , Munshi G. Mustafa , Michael Strickland , Nan Su

The perturbative instability of NLO collinear factorisation (CF) computations of $p_T$-integrated cross sections of heavy quarkonium production at high hadronic or photon-hadron collision energy is discussed. We resolve this problem via the…

高能物理 - 唯象学 · 物理学 2023-09-19 Maxim Nefedov

We present a new method to compute higher-order corrections to physical cross-sections, at Next-to-Leading Order and beyond. This method, based on the Loop Tree Duality, leads to locally integrable expressions in four dimensions. By…

高能物理 - 唯象学 · 物理学 2017-04-05 Felix Driencourt-Mangin

We study next-to-leading order contributions to the soft static fermion dispersion relation in hot QED. We derive an expression for the complete next-to-leading order contribution to the retarded fermion self-energy. The real and imaginary…

高能物理 - 唯象学 · 物理学 2008-11-26 M. E. Carrington

We present the next-to-next-to-leading order (NNLO) calculation of quark quasi parton distribution functions (PDFs) in the large momentum effective theory. The nontrivial factorization at this order is established explicitly and the full…

高能物理 - 唯象学 · 物理学 2021-02-24 Long-Bin Chen , Wei Wang , Ruilin Zhu

I present a calculation of next-to-next-to-next-to-leading-order (NNNLO) soft-gluon corrections for differential distributions in top-antitop pair production in hadronic collisions. Approximate NNNLO (aNNNLO) results are obtained from…

高能物理 - 唯象学 · 物理学 2015-03-05 Nikolaos Kidonakis

Within the Color Glass Condensate effective theory, we reconsider the next-to-leading order (NLO) calculation of the single inclusive particle production at forward rapidities in proton-nucleus collisions at high energy. Focusing on quark…

高能物理 - 唯象学 · 物理学 2017-02-01 E. Iancu , A. H. Mueller , D. N. Triantafyllopoulos

For weakly bound quarkonia, we rederive the next-to-leading order cross sections of quarkonium dissociation by partons that include the hard thermal loop (HTL) resummation. Our results calculated with an effective vertex from the…

核理论 · 物理学 2019-03-19 Juhee Hong , Su Houng Lee

We calculate next-to-leading-order (NLO) corrections to exclusive processes in $k_T$ factorization theorem, taking $\pi\gamma^*\to\gamma$ as an example. Partons off-shell by $k_T^2$ are considered in both the quark diagrams from full QCD…

高能物理 - 唯象学 · 物理学 2008-11-26 Soumitra Nandi , Hsiang-nan Li

The hard-thermal-loop perturbation theory (HTLpt) framework is used to calculate the thermodynamic functions of a quark-gluon plasma to three-loop order. This is the highest order accessible by finite temperature perturbation theory applied…

高能物理 - 唯象学 · 物理学 2015-03-19 Jens O. Andersen , Lars E. Leganger , Michael Strickland , Nan Su

We perform a complete calculation of the next-to-next-to-leading order (NNLO) electroweak fermionic corrections to fermion-pair production processes, where "fermionic" refers to contributions with closed fermion loops. We did this via a…

高能物理 - 唯象学 · 物理学 2026-05-26 Ayres Freitas , E. Jackson Wallace

The lecture provides an introduction to thermal field theory and its applications to the physics of the quark-gluon plasma, possibly created in relativistic heavy ion collisions. In particular the Hard Thermal Loop resummation technique,…

高能物理 - 唯象学 · 物理学 2007-05-23 Markus H. Thoma

We present a calculation of the thrust distribution in Higgs decays to quarks and gluons, $H\to b\bar{b}$, $H\to c\bar{c}$, and $H\to gg$, including the resummation of large logarithmic corrections that arise in the two-particle limit at…

高能物理 - 唯象学 · 物理学 2025-10-14 Elliot Fox , Aude Gehrmann-De Ridder , Thomas Gehrmann , Nigel Glover , Matteo Marcoli , Christian T. Preuss