Inclusive heavy quark photoproduction in pp , pPb and PbPb collisions at Run 2 LHC energies

Gonçalves, V. P.; Santos, G. Sampaio dos; Sena, C.R.

doi:10.1016/j.nuclphysa.2018.05.002

Cited by 11 publications

(11 citation statements)

References 87 publications

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“…This should be supplemented by additional LHC data on dijet photoproduction, and, hopefully photoproduction of open charm, and, possibly, bottom [91][92][93]. Charm and bottom hadrons are produced at relatively high rates, and their detection will benefit from the next generation of LHC vertex detectors.…”

Section: Discussionmentioning

confidence: 99%

Imaging the nucleus with high-energy photons

Klein

Mäntysaari

2019

Nat Rev Phys

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In the 1930's, nuclear physicists developed the first realistic atomic models, showing that nuclei were made up of protons and neutrons. In the 1960's, Deep Inelastic Scattering experiments showed that protons and neutrons had internal structure: quarks and gluons (collectively, partons), and later experiments showed that the parton momentum distributions are different in heavy nuclei, compared to those in free nucleons. This difference is not surprising; partons are sensitive to their environment, and two gluons from different nucleons may fuse together, for example.Understanding how quarks and gluons behave in the nuclear environment is a significant focus of modern nuclear physics. Recent measurements have provided us with an improved understanding of how quark and gluon densities are altered in heavy nuclei. We have also begun to make multidimensional pictures of the nucleus, exploring how these alterations are distributed within heavy nuclei. We naturally expect these modifications to be largest in the core of a nucleus, and smaller near its periphery; this can change the effective shape of the nucleus. We have also started to explore the transverse momentum distribution of the partons in the nuclei, and, using incoherent photoproduction as a probe, study event-by-event fluctuations in nucleon and nuclei parton densities.This article will explore recent progress in measurements of nuclear structure at high energy, with some emphasis on these multi-dimensional pictures. We will also discuss how a future electron-ion collider (EIC) with high luminosity and center-of-mass energy will make exquisitely detailed images of partons in a nucleus.

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Section: Discussionmentioning

confidence: 99%

Imaging the nucleus with high-energy photons

Klein

Mäntysaari

2019

Nat Rev Phys

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“…Open charm can be detected relatively near threshold (M cc ≈ a few times m c ), so it can probe lower x and Q 2 gluons than dijets (48). Charmed quarks, with a charge of +2/3e, have a particularly large cross section (49,50). The disadvantage is that charm quarks can hadronize to several different hadrons, each with several possible final states.…”

Section: Probing Nuclear Parton Distributions With Incoherent Photoproductionmentioning

confidence: 99%

Photonuclear and Two-Photon Interactions at High-Energy Nuclear Colliders

Klein

Steinberg

2020

Annu. Rev. Nucl. Part. Sci.

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Ultraperipheral collisions (UPCs) of heavy ions and protons are the energy frontier for electromagnetic interactions. Both photonuclear and two-photon collisions are studied at collision energies that are far higher than those available elsewhere. In this review, we discuss physics topics that can be addressed with UPCs, including nuclear shadowing, nuclear structure, and searches for physics beyond the Standard Model.

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“…where N h (x, r , b h ) is the forward dipole-hadron scattering amplitude, which is dependent on the modelling of the QCD dynamics at high energies. As in our previous study [21], we will consider the bCGC [22] and IP-SAT [23] models for the description of the dipole-proton scattering. Although these models differ in the treatment of the impact parameter dependence and/or of the linear and non-linear regimes, both describe quite well the high precision HERA data.…”

Section: Exclusive Heavy Quark Photoproduction In Hadronic Collisionsmentioning

confidence: 99%

Exclusive heavy quark photoproduction in pp, pPb and PbPb collisions at the LHC and FCC energies

2020

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In this paper we present a comprehensive analysis of the exclusive heavy quark photoproduction in pp, pP b and P bP b collisions at LHC and FCC energies using the Color Dipole formalism and taking into account of non-linear corrections to the QCD dynamics. We estimate the rapidity distributions and cross sections for the charm and bottom production considering the more recent phenomenological models for the dipole-proton scattering amplitude that are able to describe the ep HERA data. Our results indicate that a future experimental analysis of this process is feasible, which will allow us to improve our understanding of the QCD dynamics as well to perform the extraction of the elliptic component of the gluon Wigner distribution.

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Inclusive heavy quark photoproduction in pp , pPb and PbPb collisions at Run 2 LHC energies

Cited by 11 publications

References 87 publications

Imaging the nucleus with high-energy photons

Imaging the nucleus with high-energy photons

Photonuclear and Two-Photon Interactions at High-Energy Nuclear Colliders

Exclusive heavy quark photoproduction in pp, pPb and PbPb collisions at the LHC and FCC energies

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