Revisiting NLO QCD corrections to total inclusive J/psi and Upsilon photoproduction cross sections in lepton-proton collisions

Serri, Alice Colpani; Feng, Yu; Flore, Carlo; Lansberg, Jean-Philippe; Ozcelik, Melih A.; Shao, Hua-Sheng; Yedelkina, Yelyzaveta

doi:10.48550/arxiv.2112.05060

Cited by 3 publications

(7 citation statements)

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“…Interestingly, at high energies the μF -prescription of the Refs. [183,184] predicts much lower cross section 1 (dashed line in the right panel of the Fig. 7) than the matched NLO+ resummed calculation, which shows the importance of systematic resummation formalism, see the Sec.…”

Section: Bfkl Resummation Of Nlo Collinear Factorization: Heavy Quark...mentioning

confidence: 71%

“…[183] for the case of p T -integrated prompt η c hadro-production cross section and Ref. [184] for the total inclusive photo-produciton cross section of prompt J/ψ, the collinear NLO calculations of these quantities, based on the Color-Singlet(CS) Model, become unreliable if the collision energy √ s significantly exceeds the heavy quarkonium mass M , see Fig. 6 leading to negative cross-sections for reasonable values of factorisation scale such as µ F = 2M .…”

Section: Bfkl Resummation Of Nlo Collinear Factorization: Heavy Quark...mentioning

confidence: 97%

“…[183]) and prompt inclusive J/ψ photoproduction cross section (right panel, adopted from Ref. [184]) at NLO in α s in the Color-Singlet Model for various choices of factorization (µ F = ξ F M ) and renormalization (µ R = ξ R M ) scales.…”

Section: Unintegrated Gluon Distribution (Ugd)mentioning

confidence: 99%

“…Thus we conclude, that problems with high-energy behaviour of p T -integrated cross sections of quarkonium production described in Refs. [183,184] are manifestations of the necessity to perform the BFKL-type resummation of high-energy logarithms in the partonic coefficient function of these processes. Nevertheless such resummed partonic cross section is only part of the full answer, and at realistic energies √ s, the region of M 2 /ŝ ∼ 1 gives comparably large contribution, as it is clear from the left plot in the Fig.…”

Section: Bfkl Resummation Of Nlo Collinear Factorization: Heavy Quark...mentioning

confidence: 99%

“…In the future these calculations based on double logarithmic resummation of high energy logarithms matched with NLO collinear factorization in the scheme described above need to be extended to the J/ψ photoproduction case, studied in the Ref. [184], as well as to the case of rapidity and p T -differential hadroproduction cross sections of prompt η c and χ c0,1,2 mesons, including the Color-Octet contributions for the latter ones. Another important intermediate-term goal is to study how the DL HEF+NLO CF calculation changes the prompt J/ψ p T -spectrum in the Color-Singlet Model.…”

Section: Bfkl Resummation Of Nlo Collinear Factorization: Heavy Quark...mentioning

confidence: 99%

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White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction

Hentschinski¹,

Royon²,

Peredo³

et al. 2022

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The goal of this white paper is to give a comprehensive overview of the rich field of forward physics. We discuss the occurrences of BFKL resummation effects in special final states, such as Mueller-Navelet jets, jet gap jets, and heavy quarkonium production.It further addresses TMD factorization at low x and the manifestation of a semi-hard saturation scale in (generalized) TMD PDFs. More theoretical aspects of low x physics, probes of the quark gluon plasma, as well as the possibility to use photon-hadron collisions at the LHC to constrain hadronic structure at low x, and the resulting complementarity between LHC and the EIC are also presented. We also briefly discuss diffraction at colliders as well as the possibility to explore further the electroweak theory in central exclusive events using the LHC as a photon-photon collider. CONTENTS I. Introduction II. Manifestations of BFKL evolution A. Mueller-Navelet jets B. Toward precision studies of BFKL dynamics C. Unintegrated gluon distribution (UGD) D. BFKL resummation of NLO collinear factorization: Heavy quarkonium production E. Diffraction: Gaps between jets III. Hadronic Structure at low x and gluon saturation A. Color Glass Condensate and high gluon densities B. Transverse Momentum Dependent Parton Distribution Functions C. Complementarity between EIC and LHC D. Forward dijets: from LHC to EIC E. Color Glass Condensate beyond high energy factorization IV. Imprints of high gluon densities at low x at the LHC. A. Open QCD questions at a hadron-hadron collider: Parton fragmentation, mini-jets and their interplay with high parton densities B. Forward direct photon measurements 27 C. Top quark pair production as a tool to probe Quark-Gluon -Plasma formation 29 V. Ultra-peripheral collisions at hadronic colliders and exclusive reactions at the EIC 31 A. Existing measurements on diffractive vector meson photoproduction in UPCs 31 B. Future measurements on diffractive vector meson photoproduction in UPCs 33 C. The ratio of Ψ(2s) and J/Ψ photoproduction cross-sections as a tool to quantify non-linear QCD evolution 34 D. Planned measurements at the Electron Ion Collider 36 VI. Odderon discovery and diffractive jets 38 A. Soft diffraction and the Odderon discovery by the D0 and TOTEM experiments 38 B. Inclusive diffraction measurements at the LHC and sensitivity to the Pomeron structure 39 VII. Electroweak and Beyond the Standard Model Physics 41 A. Precision Proton Spectrometer (PPS) and ATLAS Forward Proton detector (AFP) at high luminosity 41 B. Non-elastic contribution in photon-photon physics 44 C. Exclusive production of Higgs boson 47 D. Anomalous quartic couplings with proton tagging 49 VIII. Conclusions 53 Acknowledgements 54 References 55

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Section: Bfkl Resummation Of Nlo Collinear Factorization: Heavy Quark...mentioning

confidence: 71%

Section: Bfkl Resummation Of Nlo Collinear Factorization: Heavy Quark...mentioning

confidence: 97%

Section: Unintegrated Gluon Distribution (Ugd)mentioning

confidence: 99%

Section: Bfkl Resummation Of Nlo Collinear Factorization: Heavy Quark...mentioning

confidence: 99%

Section: Bfkl Resummation Of Nlo Collinear Factorization: Heavy Quark...mentioning

confidence: 99%

See 3 more Smart Citations

White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction

Hentschinski¹,

Royon²,

Peredo³

et al. 2022

Preprint

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A journey into the proton structure: Progresses and challenges

Celiberto¹

2022

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Unraveling the inner dynamics of gluons and quarks inside nucleons is a primary target of studies at new-generation colliding machines. Finding an answer to fundamental problems of Quantum ChromoDynamics, such as the origin of nucleon mass and spin, strongly depends on our ability of reconstructing the 3D motion of partons inside the parent hadrons. We present progresses and challenges in the extraction of TMD parton densities, with particular attention to the ones describing polarization states of gluons, which still represent an largely unexplored field. Then, we highlight connections with corresponding parton densities in the high-energy limit, the so-called unintegrated gluon distributions or UGDs and, more in general, to recent developments in high-energy physics.

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Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom

Xu¹

2023

Preprint

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Accessing a full image of the inner content of hadrons represents a central endeavour of modern particle physics, with the main scientific motivation to investigate the strong interaction binding the visible matter. On the one hand, the structure of known exotic candidates is a fundamental open issue addressed widely by scientists. On the other hand, looking for new states of exotic nature is a central component for theoretical and experimental efforts from electron-positron machine and electron accelerator with fixed target to heavy ion and electron-ion colliders. In this article we present a succinct short overview of the attempt to search for exotic narrow N * and Z states containing light quarks only or also charm, and its connotation for bottom regions (the latter two are also known as P c (Z c ) and P b (Z b ) states, respectively in the literature). We address the effort of searching for exotic narrow N * and Z states in light quark sector. We focus on recent progress in searching for signal of P c and Z c states photoproduction and its implication into the P b and Z b photoproduction and their decay properties. We also discuss future perspectives for the field in electron-ion colliders, a good place to disentangle the nature of some of these states and investigate some other enlightening topics including QCD trace anomaly and quarkonium-nucleon scattering length.

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Revisiting NLO QCD corrections to total inclusive J/psi and Upsilon photoproduction cross sections in lepton-proton collisions

Cited by 3 publications

References 58 publications

White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction

White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction

A journey into the proton structure: Progresses and challenges

Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom

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