Probing gluons in nuclei: The case of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>η</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>

Jalilian‐Marian, Jamal; Jeon, Sangyong

doi:10.1103/physrevc.65.065201

Cited by 4 publications

(8 citation statements)

References 41 publications

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“…where x ′ ± = M √ s e ±y . This expression corresponds exactly to the well-known result for leadingorder η ′ production in pQCD collinear formalism [27].…”

Section: Appendix A: Cross Section In Pp Collisionssupporting

confidence: 85%

“…The main applications of this coupling are related mostly to B and Υ decay where processes such as g * → g + η ′ and g * + g * → η ′ are considered [19,32,33,34,35]. More recently, gluon fusion was used to compute η ′ production in high energy hadronic collisions [26,27,36] and from a thermalized medium [37].…”

Section: Effective Theorymentioning

confidence: 99%

“…More recently, gluon fusion was used to compute η ′ production in high energy hadronic collisions [26,27,36] and from a thermalized medium [37].…”

Section: Effective Theorymentioning

confidence: 99%

“…In our study, we focus on the inclusive production mechanism p + p → η ′ + X which shares similar features with this previous analysis. The first attempt to compute η ′ production in high energy pA collisions was done by one of the present author in [27]. In this study, the collinear factorization is used to compute the cross section at RHIC by including intrinsic transverse momentum in the PDF with a Gaussian distribution.…”

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confidence: 99%

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Wilson-line and color charge density correlators and the production ofη'in the color glass condensate forppand<

Fillion‐Gourdeau

Jeon

2009

Phys. Rev. C

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We compute the inclusive differential cross section production of the pseudo-scalar meson η ′ in high-energy proton-proton (pp) and proton-nucleus (pA) collisions. We use an effective coupling between gluons and η ′ meson to derive a reduction formula that relates the η ′ production to a field-strength tensor correlator. For pA collisions we take into account saturation effects on the nucleus side by using the Color Glass Condensate formalism to evaluate this correlator. We derive new results for Wilson line -color charges correlators in the McLerran-Venugopalan model needed in the computation of η ′ production. The unintegrated parton distribution functions are used to characterize the gluon distribution inside protons. We show that in pp collisions, the cross section depends on the parametrization of unintegrated parton distribution functions and thus, it can be used to put constraints on these distributions. We also demonstrate that in pA collisions, the cross section is sensitive to saturation effects so it can be utilized to estimate the value of the saturation scale.

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“…where x ′ ± = M √ s e ±y . This expression corresponds exactly to the well-known result for leadingorder η ′ production in pQCD collinear formalism [27].…”

Section: Appendix A: Cross Section In Pp Collisionssupporting

confidence: 85%

Section: Effective Theorymentioning

confidence: 99%

“…More recently, gluon fusion was used to compute η ′ production in high energy hadronic collisions [26,27,36] and from a thermalized medium [37].…”

Section: Effective Theorymentioning

confidence: 99%

mentioning

confidence: 99%

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Wilson-line and color charge density correlators and the production ofη'in the color glass condensate forppand<

Fillion‐Gourdeau

Jeon

2009

Phys. Rev. C

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“…Many observables are well-described by QCD factorizations. For example, k ⊥ -factorization was used successfully in proton-antiproton collisions for heavy-quarks production [1,2,3,4,5,6,7,8,9] while collinear factorization is one of the main computational tool for deep inelastic scattering and for a number of other applications [10,11]. The main difference between the two formalisms is their validity range.…”

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confidence: 99%

Tensor meson production in proton-proton collisions from the color glass condensate

Fillion‐Gourdeau

Jeon

2008

Phys. Rev. C

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We compute the inclusive cross-section of f 2 tensor mesons production in protonproton collisions at high-energy. We use an effective theory inspired from the tensor meson dominance hypothesis that couples gluons to f 2 mesons. We compute the differential cross-section in the k ⊥ -factorization and in the Color Glass Condensate formalism in the low density regime. We show that the two formalisms are equivalent for this specific observable. Finally, we study the phenomenology of f 2 mesons by comparing theoretical predictions of different parameterizations of the unintegrated gluon distribution function. We find that f 2 -meson production is another observable that can be used to put constraints on these distributions. I. INTRODUCTIONHigh energy hadronic collisions are complex phenomena that combine many-particles physics and Quantum Chromodynamics (QCD). Making predictions for the production of particles in these reactions involves the understanding of both hadron wave-function and processes of particle creation. Many advances have been made in the last decades in those fields through the application of perturbative QCD (pQCD) to the description of experimental data. The pQCD analysis relies generally on factorization schemes like Collinear Factorization and k ⊥ -factorization. Different procedures are implemented in these approaches to improve the perturbation expansion by resumming infrared divergences. Many observables are well-described by QCD factorizations. For example, k ⊥ -factorization was used successfully in proton-antiproton collisions for heavy-quarks production [1,2,3,4,5,6,7,8,9] while collinear factorization is one of the main computational tool for deep inelastic scattering and for a number of other applications [10,11]. The main difference between the two formalisms is their validity range.

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