The structure of IR divergences in celestial gluon amplitudes
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep06(2021)171
Abstract: Abstract The all-loop resummation of SU(N) gauge theory amplitudes is known to factorize into an IR-divergent (soft and collinear) factor and a finite (hard) piece. The divergent factor is universal, whereas the hard function is… read more here.
Keywords: structure divergences; factor; anomalous dimension; gluon ... See more keywords
Directed flow from C-odd gluon correlations at small x
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2018)140
Abstract: A bstractIt is shown that odd harmonic azimuthal correlations, including the directed flow v1, in forward two-particle production in peripheral proton-nucleus (pA) collisions can arise simply from the radial nuclear profile of a large nucleus.… read more here.
Keywords: gtmd correlator; gtmd; harmonics; gluon ... See more keywords
Helicity evolution at small x: quark to gluon and gluon to quark transition operators
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2024)037
Abstract: We include the quark to gluon and gluon to quark shock-wave transition operators into the small Bjorken-x evolution equations for helicity in the flavor-singlet channel derived earlier in [1, 2–3]. While such transitions do not… read more here.
Keywords: quark gluon; gluon quark; gluon gluon; gluon ... See more keywords
Exact solution of the nonlinear boson diffusion equation for gluon scattering
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Statistical Mechanics: Theory and Experiment"
DOI: 10.1088/1742-5468/ad5a78
Abstract: An exact analytical solution of the nonlinear boson diffusion equation is presented. It accounts for the time evolution toward the Bose–Einstein equilibrium distribution through inelastic and elastic collisions in the case of constant transport coefficients.… read more here.
Keywords: diffusion equation; gluon scattering; boson diffusion; nonlinear boson ... See more keywords
Quarkonium inside the quark-gluon plasma: Diffusion, dissociation, recombination, and energy loss
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.014008
Abstract: We consider the quarkonium diffusion, dissociation and recombination inside a quark-gluon plasma. We compute scattering amplitudes in potential nonrelativistic QCD for relevant processes. These processes include the gluon absorption/emission at the order $gr$, inelastic scattering… read more here.
Keywords: diffusion; quarkonium; dissociation recombination; gluon ... See more keywords
Gluon propagator in two-color dense QCD: Massive Yang-Mills approach at one loop
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.076017
Abstract: We study the Landau gauge gluon propagators in dense two-color QCD at quark chemical potential, $\mu_q$, in the range from 0.5 to 1.0 GeV not reachable by the perturbative method at weak coupling. In order… read more here.
Keywords: qcd; one loop; two color; color ... See more keywords
Gluon orbital angular momentum at small-$x$
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.114032
Abstract: Author(s): Hatta, Y; Nakagawa, Y; Xiao, B; Yuan, F; Zhao, Y | Abstract: © 2017 American Physical Society. We present a general analysis of the orbital angular momentum (OAM) distribution of gluons Lg(x) inside the… read more here.
Keywords: momentum small; gluon orbital; angular momentum; orbital angular ... See more keywords
Probing the gluon Sivers function in p↑p→J/ψ X and p↑p→DX
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.036011
Abstract: We present a study of transverse single-spin asymmetries (SSAs) in $p^\uparrow p\to J/\psi\,X$ and $p^\uparrow p\to D X$ within the framework of the generalized parton model (GPM), which includes both spin and transverse momentum effects,… read more here.
Keywords: probing gluon; gpm; sivers function; gluon sivers ... See more keywords
Hyperspherical-coordinate approach to the spectra and decay widths of hybrid quarkonia
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.094027
Abstract: In this paper, we consider the possibility that Y(4260), Y(4360), $ \psi(4415) $ or X(4660) is the ground state or the first excited state of a hybrid charmonium and examine whether $ \Upsilon ( 10860)… read more here.
Keywords: state; first excited; gluon hybrid; gluon ... See more keywords
Small-x Evolution of the Gluon Generalized Parton Distribution E_{g} of the Nucleon.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.252002
Abstract: We study the small-x evolution equation for the gluon generalized parton distribution E_{g} of the nucleon. It is shown that E_{g} at vanishing skewness exhibits the Regge behavior identical to the Balitsky-Fadin-Kuraev-Lipatov pomeron despite its… read more here.
Keywords: generalized parton; gluon generalized; gluon; distribution nucleon ... See more keywords