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Coherent photo-produced J$/\psi$ and dielectron yields in isobaric collisions
High Energy Physics - Phenomenology · Submitted 4 Oct 2018
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We show that the expected yields differ significantly to perform the experimental test.
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The abstract, sentence by sentence
Recently, significant enhancements of J/$\psi$ and $e^{+} e^{-}$ pair production at very low transverse momenta were observed by the STAR and ALICE collaboration in peripheral hadronic A+A collisions. The anomaly excesses point to evidence of coherent photon-nucleus and photon-photon interactions in violent hadronic heavy-ion collisions, which were conventionally studied only in ultra-peripheral collisions. The isobaric collisions performed at RHIC provides a unique opportunity to test the existence of coherent photon products in hadronic heavy-ion collisions. The idea is that the possible production of coherent photon products is significantly different in different collision systems due to the variations in their charge and nuclear density distributions. In this letter, we focus on the peripheral collisions and provide theoretical predictions for coherent production of J/$\psi$ and dielectron in isobaric collisions. We show that the expected yields differ significantly to perform the experimental test.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Recently, significant enhancements of J/$\psi$ and $e^{+} e^{-}$ pair production at very low transverse momenta were observed by the STAR and ALICE collaboration in peripheral hadronic A+A collisions. | background 0.99 | 0.06 | 0.04 | asserted 1.00 |
| s1 | The anomaly excesses point to evidence of coherent photon-nucleus and photon-photon interactions in violent hadronic heavy-ion collisions, which were conventionally studied only in ultra-peripheral collisions. | background 0.49 | 0.08 | 0.10 | hedged possibility 0.74 |
| s2 | The isobaric collisions performed at RHIC provides a unique opportunity to test the existence of coherent photon products in hadronic heavy-ion collisions. | background 0.70 | 0.13 | 0.06 | asserted 0.97 |
| s3 | The idea is that the possible production of coherent photon products is significantly different in different collision systems due to the variations in their charge and nuclear density distributions. | background 0.87 | 0.08 | 0.08 | hedged possibility 0.80 |
| s4 | In this letter, we focus on the peripheral collisions and provide theoretical predictions for coherent production of J/$\psi$ and dielectron in isobaric collisions. | contribution 1.00 | 0.84 | 0.07 | asserted 0.89 |
| s5 | We show that the expected yields differ significantly to perform the experimental test. | result 0.91 | 0.87 | 0.73 | asserted 0.99 |
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The paper
Original abstract
Recently, significant enhancements of J/$\psi$ and $e^{+} e^{-}$ pair production at very low transverse momenta were observed by the STAR and ALICE collaboration in peripheral hadronic A+A collisions. The anomaly excesses point to evidence of coherent photon-nucleus and photon-photon interactions in violent hadronic heavy-ion collisions, which were conventionally studied only in ultra-peripheral collisions. The isobaric collisions performed at RHIC provides a unique opportunity to test the existence of coherent photon products in hadronic heavy-ion collisions. The idea is that the possible production of coherent photon products is significantly different in different collision systems due to the variations in their charge and nuclear density distributions. In this letter, we focus on the peripheral collisions and provide theoretical predictions for coherent production of J/$\psi$ and dielectron in isobaric collisions. We show that the expected yields differ significantly to perform the experimental test.
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References
How the literature uses it
4 arXiv papers cite this in 6 sentences
Papers citing it · 2 sentences without a confident label
Cites it as background 2 papers
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The investigation done in Refs. [ref] addresses the role played by the participation of spectator and non-spectator nucleons in the coherent scattering.
Regge phenomenology and coherent photoproduction of charmonium in peripheral heavy ion collisions · Introduction · 0.90
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This external field induces many novel transport phenomena in the evolution of the QCD medium created in the collisions, such as the chiral magnetic effect [ref] , photoproduction of dileptons and quarkonia in peripheral and ultra-peripheral collisions [ref] , splitting of $D^0$ and $D̅^0$ directed flows [ref] , and spin-polarized difference between $Λ$ and $Λ̅$ [ref] .
Heavy flavor production under a strong magnetic field · Introduction · 0.84
What it cites · 1 sentence without a confident label
Uses the method or tool of 1 paper
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Similarly, the dielectron production from coherent photon-photon reactions can be calculated via [ref] : [equation] where $ω_1$ and $ω_2$ are the photon energies from the two colliding beams, and $σ(γγ→e^+e^-)$ is the photon-photon reaction cross-section for dielectron.
STARlight: A Monte Carlo simulation program for ultra-peripheral collisions of relativistic ions · Theoretical formalism · 0.93
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