Results 41 to 50 of about 1,097 (138)

Tree-level splitting amplitudes for a gluon into four collinear partons

open access: yesJournal of High Energy Physics, 2020
We compute in conventional dimensional regularisation the tree-level splitting amplitudes for a gluon parent which splits into four collinear partons. This is part of the universal infrared behaviour of the QCD scattering amplitudes at next-to-next-to ...
Vittorio Del Duca   +4 more
doaj   +1 more source

Understanding forward B hadron production

open access: yesJournal of High Energy Physics, 2017
The LHCb collaboration has recently performed a measurement of the production rate of inclusive B hadron production (pp → BX) at both 7 and 13 TeV centre-of-mass (CoM) energies.
Rhorry Gauld
doaj   +1 more source

Generalized Beth–Uhlenbeck Entropy Formula From the Φ‐Derivable Approach

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We derive a generalized Beth–Uhlenbeck formula for the entropy of a dense fermion system with strong two‐particle correlations, including scattering states and bound states. We work within the Φ‐derivable approach to the thermodynamic potential.
David Blaschke, Gerd Röpke, Gordon Baym
wiley   +1 more source

Large effects from small QCD instantons: making soft bombs at hadron colliders

open access: yesJournal of High Energy Physics, 2020
It is a common belief that the last missing piece of the Standard Model of particles physics was found with the discovery of the Higgs boson at the Large Hadron Collider.
Valentin V. Khoze   +2 more
doaj   +1 more source

The DNA of Calabi–Yau Hypersurfaces

open access: yesFortschritte der Physik, Volume 74, Issue 2, February 2026.
Abstract Genetic Algorithms are implemented for triangulations of four‐dimensional reflexive polytopes, which induce Calabi–Yau threefold hypersurfaces via Batyrev's construction. These algorithms are shown to efficiently optimize physical observables such as axion decay constants or axion–photon couplings in string theory compactifications.
Nate MacFadden   +2 more
wiley   +1 more source

Analytic results for Sudakov form factors in QCD

open access: yesJournal of High Energy Physics, 2022
Sudakov form factors appear ubiquitously in factorized cross sections where they allow one to resum large logarithms to all orders in perturbation theory.
Markus A. Ebert
doaj   +1 more source

An Overview of Scale Invariance in Proton Structure With Holographic Insights

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
The concept of self‐similarity in the internal structure of the proton, rooted in scale invariance and fractal geometry, provides an intriguing framework for understanding the behavior of parton distribution functions (PDFs), particularly in the small x region probed in deep inelastic scattering (DIS).
Akbari Jahan, Fu-Hu Liu
wiley   +1 more source

Prompt hadroproduction of η c (1S, 2S) in the k T -factorization approach

open access: yesJournal of High Energy Physics, 2020
In this work, we present a thorough analysis of η c (1S, 2S) quarkonia hadroproduction in k ⊥-factorisation in the framework of the light-front potential approach for the quarkonium wave function. The off-shell matrix elements for the g * g * η c (1S, 2S)
Izabela Babiarz   +3 more
doaj   +1 more source

Infrared structure of SU(N) × U(1) gauge theory to three loops

open access: yesJournal of High Energy Physics, 2020
We study the infrared (IR) structure of SU(N ) × U(1) (QCD × QED) gauge theory with n f quarks and n l leptons within the framework of perturbation theory.
A.H. Ajjath   +2 more
doaj   +1 more source

Complementary Probes of the Dimension‐6 Operator via Gravitational Waves and Multi‐Higgs Production

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
We investigate the phenomenological consequences of a dimension‐6 operator H†H3/Λ2, Λ is the effective scale at which new physics takes over, which modifies the scalar potential of the standard model and can induce a strong first‐order electroweak phase transition (SFOEWPT). We estimate the lower limit on the effective scale Λ to be 515 GeV from the di‐
Dilruba Gazi   +4 more
wiley   +1 more source

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