Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Jianhong Ruan"'
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 35 (2024)
Ultrahigh-energy cosmic rays are often characterized indirectly by analyzing the properties of secondary cosmic ray particles produced in the collisions with air nuclei. The particle number N _μ of muon and the depth of shower maximum X _max after a
Externí odkaz:
https://doaj.org/article/3fab9163073b4e81a8fb674f195daf75
Publikováno v:
Nuclear Physics B, Vol 984, Iss , Pp 115961- (2022)
Gluons may converge to a stable state at a critical momentum in hadrons. This gluon condensation is predicted by a nonlinear QCD evolution equation. We review the understanding of the gluon condensation and present a clear physical picture that produ
Externí odkaz:
https://doaj.org/article/b57b1da5522d4e8c83914e902a0b93c0
Publikováno v:
Nuclear Physics B, Vol 911, Iss C, Pp 1-35 (2016)
The corrections of gluon fusion to the DGLAP and BFKL equations are discussed in a united partonic framework. The resulting nonlinear evolution equations are the well-known GLR–MQ–ZRS equation and a new evolution equation. Using the available sat
Externí odkaz:
https://doaj.org/article/b8fd9552ebe046668d15e0e96ac67352
Publikováno v:
International Journal of Modern Physics E. 31
The positron–electron fluxes detected by AMS02, CALET, DAMPE and Fermi-LAT have shown their complex structure which deviated from a single power-law, and the results of DAMPE and Fermi-LAT are obviously higher than those of AMS02 and CALET in 100[F
The very high energy gamma-ray emissions from pulsars are usually considered to be dominated by leptonic scenario since the hadronic flux is weak. We point out that the gluon condensation predicted by a nonlinear QCD evolution equation may greatly en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6c21f9f99b7e2d01973ff8c48d467a6
http://arxiv.org/abs/2012.08767
http://arxiv.org/abs/2012.08767
Hardening of cosmic proton- and nuclei-spectra is explained by using the gluon condensation (GC) model, which states that a large amount of gluons in proton may condense near the high energy threshold. The results present the GC-effect as common orig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02b5951b999721e25ba2b63be7e38ac9
http://arxiv.org/abs/2002.06294
http://arxiv.org/abs/2002.06294
The gluon condensation effect in cosmic proton-proton collisions at high energy is used to explain an excess in the positron spectrum observed by AMS. We find that this excess may originate from the GC-effect in Tycho's supernova remnant.
4 page
4 page
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfff52385493b0ff17fb5c7caf5d5a65
http://arxiv.org/abs/1912.12842
http://arxiv.org/abs/1912.12842
We reveal that the energy spectra of electrons-positrons in primary cosmic rays measured at atmosphere top have double structures: an excess component $\Phi^s_{e^+}(E)=\Phi^s_{e^-}(E)$ around $400 GeV$, which origins from a strong $e^+e^-$-source and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95be3342a36fb70a06d1db498ed1e572
Publikováno v:
Journal of Cosmology and Astroparticle Physics. 2021:038-038
The gluon condensation in the proton as a dynamical model is used to treat a series of unsolved puzzles in sub-TeV gamma ray spectra, they include the broken power-law of blazar's radiation, the hardening confusion of 1ES 1426+428, Mkn 501, and the r
Publikováno v:
Physical Review A. 98
Separation of the spin and orbital angular momenta of the electromagnetic field has been discussed frequently in recent years. The spin and orbital angular momenta cannot be made simultaneously gauge invariant and Lorentz covariant and are not conser