Suppression versus enhancement of heavy quarkonia in 
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Kopeliovich, B. Z.; Schmidt, Iván; Siddikov, Marat

doi:10.1103/physrevc.95.065203

Cited by 16 publications

(14 citation statements)

References 94 publications

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“…It implies that the discussion on the absorption of the color-octet dipole cannot be ignored at the LHC. 12 It has been discussed in details in [36].…”

Section: More Results: Kaons and 2 Dimensional Multiplicity Ratiosmentioning

confidence: 99%

Space-time development of in-medium hadronization : scenario for leading hadrons

Guiot

Kopeliovich

2017

EPJ Web Conf.

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Abstract. Lepton deep inelastic scattering off nuclei at medium energies gives the opportunity to study the space-time development of hadronization. Indeed, for these kinematics, the production length is comparable to the nuclear size. Based on the Berger model [1] and dipole phenomenology, we built a model for vacuum and in-medium hadronization. The model, which includes vacuum energy loss, induced energy loss and nuclear absorption in a parameter-free way successfully describes Hermes data [2,3]. In a future publication, Fermi motion will be taken into account and the model will be applied to CLAS Eg2 data, at Jefferson laboratory.

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“…It implies that the discussion on the absorption of the color-octet dipole cannot be ignored at the LHC. 12 It has been discussed in details in [36].…”

Section: More Results: Kaons and 2 Dimensional Multiplicity Ratiosmentioning

confidence: 99%

Space-time development of in-medium hadronization : scenario for leading hadrons

Guiot

Kopeliovich

2017

EPJ Web Conf.

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“…Then it was further studied in Refs. [51][52][53]. Moreover, recently contributions of multiple gluon couplings in the J/ψ production were combined with the COM [54,55].…”

Section: Contentsmentioning

confidence: 99%

BFKL Pomeron loop contribution in diffractive photoproduction and inclusive hadroproduction of J/ψ and ϒ

Kotko

Motyka

Sadzikowski

et al. 2019

J. High Energ. Phys.

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We analyze contributions to the heavy vector meson production with large transverse momentum in proton-proton and diffractive photon-proton scattering driven by an exchange of two Balitsky-Fadin-Kuraev-Lipatov Pomerons in the squared amplitudes. The Pomerons couple to a single parton and form a Pomeron loop closed by the vector meson impact factors. For the photon-proton case the diffractive cut of the Pomeron loop contributes, and for the inclusive hadroproduction one finds the loop with two cut Pomerons. We compute both of these Pomeron loop contributions and study in detail their properties. The results are then used to calculate the cross sections for diffractive J/ψ photoproduction with large transverse momentum at HERA and the correlated two Pomeron contribution for inclusive J/ψ and Υ production cross sections at the LHC. Within a unified approach a good description of the photoproduction data is found, but correlated two Pomeron mechanism gives only a small contribution to hadroproduction of the vector mesons at the LHC.

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“…As a result, shadowing of quark production also is a higher twist and is described as propagation of an artificial 3-body dipole |qqg . Correspondingly, charm quarks [12], charmonia [13][14][15] are shadowed considerably less than light quarks. This explains in particular the observed non-universality…”

Section: Introductionmentioning

confidence: 99%

“…The processes of least shadowing corrections, like production of Drell-Yan pairs, Υ, B and D mesons, are expected to approach this bound. We do not attempt here at theoretical evaluation of β J/ψ (though is doable [15]), but prefer to rely on a fit to data. Another popular parametrization applied to measured A-dependence of J/ψ production is,…”

Section: Introductionmentioning

confidence: 99%

Heavy quarkonium in the saturated environment of high-multiplicity pp collisions

et al. 2020

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High-multiplicity pp collisions exhibit features, traditionally associated with nuclear effects. Coherence motivates to treat high-multiplicity pp, pA and AA collisions on an equal footing. We rely on the phenomenological parametrization for mean multiplicities of light hadrons and J/ψ, assuming their linear dependence on N coll in pA collisions. The results of this approach underestimate the recently measured production rate of J/ψ at very high hadronic multiplicities. The linear dependence of J/ψ multiplicity on N coll is subject to predicted nonlinear corrections, related to mutual boosting of the saturation scales in colliding dense parton clouds. A parameter-free calculation of the non-linear corrections allows to explain data for pT -integrated yield of J/ψ at high hadronic multiplicities. Calculations are in a good accord with data binned in several pT -intervals as well. As was predicted, Υ and J/ψ are equally suppressed at forward rapidities in pA collisions. Consequently, their fractional multiplicities at forward rapidities in pp collisions are equal as well, and their magnitude agrees with data.

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Suppression versus enhancement of heavy quarkonia in pA collisions

Cited by 16 publications

References 94 publications

Space-time development of in-medium hadronization : scenario for leading hadrons

Space-time development of in-medium hadronization : scenario for leading hadrons

BFKL Pomeron loop contribution in diffractive photoproduction and inclusive hadroproduction of J/ψ and ϒ

Heavy quarkonium in the saturated environment of high-multiplicity pp collisions

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