Results 11 to 20 of about 14,507 (274)

Massive scalar field in de Sitter spacetime: a two-loop calculation and a comparison with the stochastic approach [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We examine long-wavelength correlation functions of massive scalar fields in de Sitter spacetime. For the theory with a quartic self-interaction, the two-point function is calculated up to two loops.
Alexander Yu. Kamenshchik   +2 more
doaj   +2 more sources

A consistent resummation of mass and soft logarithms in processes with heavy flavours [PDF]

open access: yesJournal of High Energy Physics, 2023
Perturbative calculations for processes that involve heavy flavours can be performed in two approaches: the massive scheme and the massless one. The former enables one to fully account for the heavy-quark kinematics, while the latter allows one to resum ...
Andrea Ghira   +2 more
doaj   +2 more sources

Eikonal approximation in celestial CFT [PDF]

open access: yesJournal of High Energy Physics, 2023
We identify an eikonal regime in celestial CFT2 in which massless 2-2 scattering is dominated by t-channel exchange. We derive a formula for the celestial amplitude that resums exchanges of arbitrary integer spin to all orders in the coupling.
Leonardo Pipolo de Gioia   +1 more
doaj   +2 more sources

Generació automàtica de resums de textos especialitzats: experimentacions en llengua catalana

open access: yesTerminàlia, 2010
En aquest article presentem un nou algoritme per al resum automàtic de textos especialitzats, que combina recursos terminològics (l’ús de l’extractor de termes YATE) i semàntics (consulta de l’ontologia lèxica EuroWordNet).
Jorge Vivaldi   +3 more
doaj   +2 more sources

Back-to-back inclusive dijets in DIS at small x: gluon Weizsäcker-Williams distribution at NLO [PDF]

open access: yesJournal of High Energy Physics, 2023
In [1], we performed the first complete computation of the back-to-back inclusive dijet cross-section in Deeply Inelastic Scattering (DIS) at small x Bj to next-to-leading order (NLO) in the Color Glass Condensate effective field theory (CGC EFT).
Paul Caucal   +4 more
doaj   +2 more sources

Resummation of non-global logarithms and the BFKL equation [PDF]

open access: yesJournal of High Energy Physics, 2018
We consider a ‘color density matrix’ in gauge theory. We argue that it systematically resums large logarithms originating from wide-angle soft radiation, sometimes referred to as non-global logarithms, to all logarithmic orders.
Simon Caron-Huot
doaj   +2 more sources

Light-cone distribution amplitudes of light mesons with QED effects [PDF]

open access: yesJournal of High Energy Physics, 2021
We discuss the generalization of the leading-twist light-cone distribution amplitude for light mesons including QED effects. This generalization was introduced to describe virtual collinear photon exchanges at the strong-interaction scale ΛQCD in the ...
Martin Beneke   +3 more
doaj   +2 more sources

The importance of kinematic twists and genuine saturation effects in dijet production at the Electron-Ion Collider [PDF]

open access: yesJournal of High Energy Physics, 2021
We compute the differential yield for quark anti-quark dijet production in high-energy electron-proton and electron-nucleus collisions at small x as a function of the relative momentum P ⊥ and momentum imbalance k ⊥ of the dijet system for different ...
Renaud Boussarie   +3 more
doaj   +2 more sources

A study of jet mass distributions with grooming [PDF]

open access: yesJournal of High Energy Physics, 2017
We perform a phenomenological study of the invariant mass distribution of hadronic jets produced in proton-proton collisions, in conjunction with a grooming algorithm.
Simone Marzani   +2 more
doaj   +2 more sources

Improved MSSM Higgs mass calculation using the 3-loop FlexibleEFTHiggs approach including x t -resummation [PDF]

open access: yesJournal of High Energy Physics, 2020
We present an improved calculation of the light CP-even Higgs boson pole mass in the MSSM based on the FlexibleEFTHiggs hybrid method. The calculation resums large logarithms to all orders and includes power-suppressed terms at fixed order. It uses state-
Thomas Kwasnitza   +2 more
doaj   +2 more sources

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