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The production of isolated photons in high multiplicity events is investigated considering the Color Glass Condensate (CGC) formalism. The associated cross-section for proton - proton collisions is estimated considering three distinct…

高能物理 - 唯象学 · 物理学 2024-03-13 Yuri N. Lima , André V. Giannini , Victor P. Goncalves

The amplitude for production of a single photon associated with quark pair in the fusion of two off-shell gluons is calculated. The matrix element found is applied to the inclusive prompt photon hadroproduction at high energies in the…

高能物理 - 唯象学 · 物理学 2008-11-26 S. P. Baranov , A. V. Lipatov , N. P. Zotov

In this preprint we analyze the inclusive hadroproduction of heavy charmonia-bottomonia pairs in the Color Glass Condensate framework in the dilute-dense approximation. The production mechanisms can be classified by number of gluons emitted…

高能物理 - 唯象学 · 物理学 2025-03-27 M. Siddikov

The forward $\eta$ mesons production has been observed by the Large Hadron Collider forward (LHCf) experiment in proton-proton collision at $\sqrt{s}$=13 TeV. This paper presents the measurement of the inclusive production rate of $\eta$ in…

The inclusive production of light mesons in pp-scattering is considered in the framework of reggeon phenomenology with supercritical Pomeron. Available low-energy data can be explained with three reggeon particles taken into account. With…

高能物理 - 唯象学 · 物理学 2010-12-24 A. K. Likhoded , A. V. Luchinsky , A. A. Novoselov

Inclusive cross sections for $J/\psi$ production in proton-proton collisions were calculated in the $k_t$-factorization approach for the RHIC energy. Several mechanisms were considered, including direct color-singlet mechanism, radiative…

高能物理 - 唯象学 · 物理学 2008-11-26 S. P. Baranov , A. Szczurek

Measurements of the double-differential proton production cross-section in the range of momentum 0.5 GeV/c < p < 8.0 GeV/c and angle 0.05 rad < \theta < 0.25 rad in collisions of charged pions and protons on beryllium, carbon, aluminium,…

高能物理 - 实验 · 物理学 2010-11-11 M. Apollonio et al.

We study the effects of gluon saturation on pion production in high energy proton-nucleus collisions using the color glass condensate model. At high p_perp, we show that the p_perp-distribution of gluons behaves as ~ 1/(p_perp^7) in…

高能物理 - 唯象学 · 物理学 2007-05-23 J. T. Lenaghan , K. Tuominen

At the Large Hadron Collider (LHC) it will become possible for the first time to investigate experimentally the forward region in hadron-hadron collisions via high-$p_T$ processes. In the LHC forward kinematics QCD logarithmic corrections…

高能物理 - 唯象学 · 物理学 2009-11-05 M. Deak , F. Hautmann , H. Jung , K. Kutak

The PHENIX experiment presents results from the RHIC 2005 run with polarized proton collisions at sqrt(s)=200 GeV, for inclusive \pi^0 production at mid-rapidity. Unpolarized cross section results are given for transverse momenta p_T=0.5 to…

高能物理 - 实验 · 物理学 2008-11-26 PHENIX Collaboration , A. Adare

We consider forward pion production in p p collisions at RHIC energies,which probes the so-called Extended Geometric Scaling region. Upon inclusion of small-x effects via an anomalous dimension within the Color Glass Condensate formalism at…

高能物理 - 唯象学 · 物理学 2008-11-26 Daniel Boer

We investigate charged-hadron production in relativistic heavy-ion collisions of asymmetric systems within a nonequilibrium-statistical framework. Calculated centrality-dependent pseudorapidity distributions for p-Pb collisions at…

高能物理 - 唯象学 · 物理学 2024-11-05 Philipp Schulz , Georg Wolschin

We analyze three jet production in the central-forward and forward rapidity regions in proton-proton and proton-lead collisions at LHC energies. Our calculation relies on high-energy factorization with a single off-shell gluon obeying small…

高能物理 - 唯象学 · 物理学 2014-07-11 Andreas van Hameren , Piotr Kotko , Krzysztof Kutak

Hadron production at high-$p_T$ displays a strong suppression pattern in a wide rapidity region in heavy ion collisions at RHIC energies. This finding indicates the presence of strong final state effects for both transversally and…

高能物理 - 唯象学 · 物理学 2011-09-13 G. G. Barnaföldi , P. Lévai , G. Papp , G. Fai

Using the small-$x$ Improved Transverse Momentum Dependent factorization (ITMD), which, for a general two-to-two massless scattering can be proved within the Color Glass Condensate (CGC) theory for transverse momenta of particles greater…

高能物理 - 唯象学 · 物理学 2023-06-21 Ishita Ganguli , Andreas van Hameren , Piotr Kotko , Krzysztof Kutak

We calculate cross section for production of $D$ mesons and $\Lambda_c$ baryons in proton-proton collisions at the LHC. The cross section for production of $c \bar c$ pairs is calculated within $k_T$-factorization approach with the…

高能物理 - 唯象学 · 物理学 2018-07-18 Rafal Maciula , Antoni Szczurek

Central exclusive and semiexclusive production of $\pi^+\pi^-$ pairs is measured with the CMS detector in proton-proton collisions at the LHC at center-of-mass energies of 5.02 and 13 TeV. The theoretical description of these…

高能物理 - 实验 · 物理学 2020-09-07 CMS Collaboration

We present the first fully consistent calculation of inclusive $\pi^0$ production at forward rapidities at next-to-leading order (NLO) accuracy in proton-lead collisions at $\sqrt{s}=8.16$ TeV within the Color Glass Condensate approach. The…

高能物理 - 唯象学 · 物理学 2024-02-23 Heikki Mäntysaari , Yossathorn Tawabutr

We investigate the inclusive Higgs boson production in proton-proton collisions at high energies in the framework of kt-factorization QCD approach. The attention is focused on the dominant off-shell gluon-gluon fusion subprocess, where the…

高能物理 - 唯象学 · 物理学 2017-08-04 A. V. Lipatov , M. A. Malyshev , N. P. Zotov

We present a systematic study on the strange particle production at the Large Hadron Collider (LHC) in proton-proton (pp) collisions at $\sqrt{s}=$ 7 TeV based on PACIAE simulations. Two different mechanisms accounting for single string…

高能物理 - 唯象学 · 物理学 2018-10-02 Liang Zheng , Dai-Mei Zhou , Zhong-Bao Yin , Yu-Liang Yan , Gang Chen , Xu Cai , Ben-Hao Sa