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相关论文: Quarkonium production in coherent hadron-hadron in…

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In this contribution we study the photoproduction of quarkonium in coherent proton-proton and nucleus-nucleus interactions at the LHC. The integrated cross sections and rapidity distributions are estimated using the Color Glass Condensate…

高能物理 - 唯象学 · 物理学 2007-06-20 V. P. Goncalves , M. V. T. Machado

In this paper we study the $H + \gamma$ ($H = J/\Psi$ and $\Upsilon$) production in coherent hadron - hadron interactions at LHC energies. Considering the ultrarelativistic protons as a source of photons, we estimate the $\gamma + p…

高能物理 - 唯象学 · 物理学 2015-06-05 V. P. Goncalves , M. M. Machado

In this paper we study the inelastic quarkonium photoproduction in coherent $pp/pPb/PbPb$ interactions. Considering the ultra relativistic hadrons as a source of photons, we estimate the total $ h_1 + h_2 \rightarrow h \otimes V + X$ ($V =…

高能物理 - 唯象学 · 物理学 2015-06-17 V. P. Goncalves , M. M. Machado

The quarkonium plus photon production in coherent hadron-hadron interactions at the LHC is studied using the non-relativistic QCD factorization formalism. We investigate a set of kinematic distributions and compute the total cross sections…

高能物理 - 唯象学 · 物理学 2018-04-27 M. M. Machado , G. Gil da Silveira

In this letter we study the photoproduction of heavy quarks and vector mesons in the coherent proton-nucleus (pA) interactions for RHIC and LHC energies and analyze if these processes can be used to determine the QCD dynamics at high…

高能物理 - 唯象学 · 物理学 2011-01-25 V. P. Goncalves , M. V. T. Machado

We investigate the low transverse momentum heavy quarkonium ($J/\psi$, $\Upsilon$) productions in the forward rapidity region of $pp$ and $pA$ collisions at the LHC as an important probe to the transverse momentum tomography of the gluons…

高能物理 - 唯象学 · 物理学 2015-12-23 Kazuhiro Watanabe , Bo-Wen Xiao

In this work we analyse the possibility of constraining the QCD dynamics at high energies studying the heavy quark photoproduction at LHC in coherent interactions. The rapidity distribution and total cross section for charm and bottom…

高能物理 - 唯象学 · 物理学 2014-11-20 V. P. Goncalves , M. V. T. Machado , A. R. Meneses

The rates for diffractive quarkonium plus prompt-photon associated production at the LHC are estimated. The theoretical framework considered in the J/Psi (or Upsilon) production associated with a direct photon at the hadron collider is the…

高能物理 - 唯象学 · 物理学 2010-01-15 M. B. Gay Ducati , M. M. Machado , M. V. T. Machado

In this letter we study the diffractive photoproduction of heavy quarks in hadronic (pp/pA/AA) interactions for Tevatron and LHC energies. The integrated cross section and rapidity distribution for the process h_1 h_2 --> h_1 h_2 QQBAR (h_i…

高能物理 - 唯象学 · 物理学 2008-11-26 V. P. Goncalves , M. V. T. Machado

In this work we investigate the coherent photoproduction of psi(1S), psi(2S) and Upsilon (1S) states in the proton-nucleus collisions in the LHC energies. Predictions for the rapidity distributions are presented using the color dipole…

高能物理 - 唯象学 · 物理学 2014-06-19 G. Sampaio dos Santos , M. V. T. Machado

We discuss the photoproduction of $\Upsilon$ and $J/\psi$ at high energy $\bar{p}p$, $pp$ and heavy ion colliders. We predict large rates in $\bar{p}p$ interactions at the Fermilab Tevatron %and in heavy-ion interactions at the CERN LHC.…

高能物理 - 唯象学 · 物理学 2009-11-10 Spencer R. Klein , Joakim Nystrand

The inclusive diffractive quarkonium photoproduction in $pp$ and $pA$ collisions is investigated considering the Resolved Pomeron Model to describe the diffractive interaction. We estimate the rapidity and transverse momentum distributions…

高能物理 - 唯象学 · 物理学 2017-11-01 V. P. Goncalves , L. S. Martins , B. D. Moreira

The inclusive $J/\Psi$ production by direct and resolved photoproduction in the $\gamma$p scattering is calculated based on the nonrelativistic quantum chromodynamics (NRQCD) factorization formalism, which is in good agreement with the…

高能物理 - 唯象学 · 物理学 2019-07-23 Yi Yang , Shaohong Cai , Yanbing Cai , Wenchang Xiang

In this paper we study the inclusive and diffractive double quarkonium production. Based on the nonrelativistic QCD (NRQCD) factorization formalism for the quarkonium production mechanism we estimate the rapidity and transverse momentum…

高能物理 - 唯象学 · 物理学 2018-06-12 C. Brenner Mariotto , V. P. Goncalves , R. Palota da Silva

We evaluate the production cross section for direct J/Psi and Upsilon integrated in P_T for various collision energies in the QCD-based Colour-Singlet Model (CSM). We consider the LO contribution from gluon fusion whose P_T-integrated cross…

高能物理 - 唯象学 · 物理学 2010-12-14 J. P. Lansberg

This talk presents a review of recent results for quarkonium production at the LHC from ATLAS, CMS, LHCb, and ALICE. Production cross sections for $J/\psi$, $\psi(2S)$, and $\Upsilon(mS)$, and production ratios for $\chi_{c,bJ}$ are found…

高能物理 - 实验 · 物理学 2014-09-10 Bryan Fulsom

Theoretical analyses of the results on quarkonium production at large transverse momentum ($p_T$) in $p\bar p$ collisions, at the Tevatron have revealed two novel features of the physics of quarkonium production : 1) the contribution of…

高能物理 - 唯象学 · 物理学 2007-05-23 K. Sridhar

The studies of heavy quarkonium inclusive production and polarization at LHC are becoming crucial to solve the puzzle of hadron formation. The results by CMS and the other LHC experiments are compactly presented for the five S-wave states…

高能物理 - 实验 · 物理学 2014-09-16 Alexis Pompili

In this letter we update our predictions for the photoproduction of vector mesons in coherent $pp$ and $AA$ collisions at RHIC and LHC energies using the color dipole approach and the Color Glass Condensate (CGC) formalism. In particular,…

高能物理 - 唯象学 · 物理学 2011-08-08 V. P. Goncalves , M. V. T. Machado

The production of a quarkonium -- pair in exclusive and diffractive processes in $pp$ collisions at the LHC and FCC energies is investigated. We consider the $J/\Psi J/\Psi$ and $\Upsilon \Upsilon$ production in these processes and present…

高能物理 - 唯象学 · 物理学 2020-02-26 V. P. Goncalves , R. Palota da Silva
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