Results 61 to 70 of about 8,485 (223)

Resummation for s-channel single-top production

Nuclear Physics B
I present higher-order results for s-channel single-top-quark production that are derived from soft-gluon resummation. I show that the soft-gluon corrections provide the dominant contribution to the QCD corrections, and that they approximate very well ...
Nikolaos Kidonakis
doaj   +1 more source

An Overview of Scale Invariance in Proton Structure With Holographic Insights

Advances 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

Gluon fragmentation to gluonium [PDF]

Physics Letters B, 2000
The fragmentation of gluons to gluonium states is analyzed qualitatively in the non-perturbative region. The convolution of this mechanism with perturbative gluon radiation leaves us with a hard component in the fragmentation of gluon to gluonium.
Spiesberger, H., Zerwas, Peter
openaire   +3 more sources

Celestial gluon and graviton OPE at loop level

Journal of High Energy Physics
In this paper, we analyze the loop corrections to celestial OPE for gluons and gravitons. Even at the loop level, the soft gluons and gravitons have conformal dimensions ∆ = 1 − $${\mathbb{Z}}_{\ge 0}$$ . The only novelty is the presence of higher poles.
Hare Krishna
doaj   +1 more source

Some characteristic parameters of proton from the bag model

Results in Physics, 2019
We treat the mass of a proton as the total static energy which can be separated into two parts that come from the contribution of quarks and gluons respectively.
Z.G. Tan, Z.D. Li, Y. Chen
doaj   +1 more source

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

Advances 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, Abhi Mukherjee, Saurabh Niyogi, Sujoy Poddar, Subhash Singha   +4 more
wiley   +1 more source

Gluon contribution to the Sivers effect. COMPASS results on deuteron target

EPJ Web of Conferences, 2015
Sivers effect for gluons is connected to gluon orbital angular momentum which may be the missing part of the nucleon spin puzzle. We present a method of extraction of Sivers effect for gluons from COMPASS SIDIS data on transversely polarised target.
Szabelski Adam
doaj   +1 more source

Extraction of Effective Parameters From Transverse Momentum Spectra of Heavy Quarkonia in Proton–Proton Collisions at the LHC

Advances in High Energy Physics, Volume 2026, Issue 1, 2026.
The effective string tension (κ) in the Schwinger mechanism and the effective temperature (T) in Bose–Einstein statistics are extracted from the transverse momentum (pT) spectra of heavy quarkonia produced in proton‐proton (p + p) collisions at the Large Hadron Collider (LHC).
Peng-Cheng Zhang, Hailong Zhu, Fu-Hu Liu, Khusniddin K. Olimov, Subhash Singha   +4 more
wiley   +1 more source

Gluon propagators and center vortices in gluon plasma [PDF]

Physical Review D, 2011
We study electric and magnetic components of the gluon propagators in quark-gluon plasma in terms of center vortices by using a quenched simulation of SU(2) lattice theory. In the Landau gauge, the magnetic components of the propagators are strongly affected in the infrared region by removal of the center vortices, while the electric components are ...
Chernodub, Maxim N., Nakagawa, Y., Nakamura, A., Saito, T., Zakharov, V. I.   +4 more
openaire   +5 more sources

Mass Spectra, Radii, and Decay Widths of Toponium

Advances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this work, the radial Schrodinger equation with a nonrelativistic quark potential model (NRQPM) is solved numerically by employing the shooting method. Calculated numerical wave functions (or solutions) are used to compute the masses, root mean square (RMS) radii, E1, M1 radiative transition widths, annihilation decay widths, and branching ratios of
Nosheen Akbar, Ishrat Asghar, Zaki Ahmad, Adnan Malik   +3 more
wiley   +1 more source