Light nuclei production in heavy-ion collisions at relativistic energies

Albergo, S.; Bellwied, R.; Bennett, M. J.; Bonner, B. E.; Caines, H.; Christie, W.; Costa, S.; Crawford, H. J.; Cronqvist, M.; Debbe, R.; Engelage, J.; Greiner, L.; Hallman, T. J.; Hijazi, G.; Hoffmann, G. W.; Huang, H. Z.; Humanic, T. J.; Insolia, A.; Jensen, Paul A.; Judd, E. G.; Kainz, K.; Kaplan, M.; Kelly, S.; Kotov, I.V.; Kunde, G. J.; Lindstrom, P. J.; Llope, W. J.; LoCurto, G.; Longacre, R. S.; Lynn, D.; Mahzeh, N.; Milosevich, Z.; Mitchell, J. T.; Mitchell, J. W.; Nehmeh, Sadek; Paganis, E.; Pandey, S.U.; Potenza, R.; Russ, D.; Saulys, A. C.; Schambach, Johann Joachim; Sheen, J.; Sugarbaker, E.; Takahashi, J.; Tang, J. L.; Trattner, Alexander; Trentalange, S.; Tricomi, A.; Tuvé, C.; Whitfield, J.; Wilson, Kenneth E.

doi:10.1103/physrevc.65.034907

Cited by 26 publications

(24 citation statements)

References 31 publications

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“…This parameter has been found to be constant at low transverse momentum in light-particle collisions [15,51]. In contrast, in AA collisions it has been reported that B A decreases with increasing centrality of the collision, and for each centrality it increases with p T [8][9][10][11].…”

Section: A Coalescence Parametermentioning

confidence: 99%

“…Deuterons and antideuterons are copiously produced in heavy-ion collisions [1][2][3][4][5][6][7][8][9][10][11], but less abundantly in lighter particle collisions, such as pp [12,13] and pp [14] collisions, photoproduction γp [15], and e + e − annihilation at ϒ(nS) [16] and Z 0 [17] energies. Measurements of heavier antinuclei, such as antitritons and 3 He nuclei, have only been reported in pA [18,19] and AA collisions [11,[20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Production of deuterons, tritons, He3 nuclei, and their antinuclei in pp collisions at s=

Acharya¹,

Adam²,

Adamová³

et al. 2018

Phys. Rev. C

Self Cite

107

128

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Invariant differential yields of deuterons and antideuterons in pp collisions at √ s = 0.9, 2.76 and 7 TeV and the yields of tritons, 3 He nuclei, and their antinuclei at √ s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum (p T ) range in the rapidity interval |y| < 0.5, extending both the energy and the p T reach of previous measurements up to 3 GeV/c for A = 2 and 6 GeV/c for A = 3. The coalescence parameters of (anti)deuterons and 3 He nuclei exhibit an increasing trend with p T and are found to be compatible with measurements in pA collisions at low p T and lower energies. The integrated yields decrease by a factor of about 1000 for each increase of the mass number with one (anti)nucleon. Furthermore, the deuteron-to-proton ratio is reported as a function of the average charged particle multiplicity at different center-of-mass energies.

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Section: A Coalescence Parametermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Production of deuterons, tritons, He3 nuclei, and their antinuclei in pp collisions at s=

Acharya¹,

Adam²,

Adamová³

et al. 2018

Phys. Rev. C

Self Cite

107

128

View full text Add to dashboard Cite

show abstract

“…Equation (4) gives the yield normalized per trigger particle, the conventional normalization for dihadron correlations. In the case when the number of trigger particles that are not from hard processes is negligible, the yield is then the number of associated particles per jet.…”

Section: ηmentioning

confidence: 99%

“…The production of light (anti)nuclei is of interest in highenergy particle collisions because of the insight that these measurements can provide into particle production mechanisms [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Since the binding energies of light (anti)nuclei are on the order of a few MeV, they may be formed via coalescence of (anti)nucleons in the later stages of evolution of the system [16,17].…”

Section: Introductionmentioning

confidence: 99%

Methods for separation of deuterons produced in the medium and in jets in high-energy collisions

et al. 2018

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Coalescence has long been used to describe the production of light (anti)nuclei in heavy-ion collisions. The same underlying mechanism may also exist in jets when a proton and a neutron are close enough in phase space to form a deuteron. We model deuteron production in jets by applying an afterburner, which uses a coalescence mechanism to form deuterons from protons and neutrons produced in PYTHIA for p+p collisions at a center of mass energy √ s = 7 TeV. PYTHIA provides a reasonable description of the proton spectra and the shape of the deuteron spectrum predicted by the afterburner is in agreement with the data. We show that the rise in the coalescence parameter B 2 with momentum observed in data is consistent with coalescence in jets. We show that dihadron correlations can be used to separate the contributions from the jet and the underlying event. This model predicts that the conditional coalescence parameter in the jetlike correlation should be independent of the trigger momentum.

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“…The production of light (anti)nuclei has been studied extensively at lower energies in Bevelac at LBNL [24,[46][47][48][49], AGS at RHIC [50][51][52][53], and SPS at CERN [54][55][56][57][58]. In the AGS 2 Advances in High Energy Physics experiments, it was found that the coalescence parameter ( 2 ) is of similar magnitude for both and indicating similar freeze-out hypersurface of nucleons and antinucleons.…”

Section: Introductionmentioning

confidence: 99%

A Review of Elliptic Flow of Light Nuclei in Heavy-Ion Collisions at RHIC and LHC Energies

Haque

Jena

Mohanty

2017

Advances in High Energy Physics

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We present a review of the measurements of elliptic flow (V 2 ) of light nuclei ( , , , 3 He, and 3 He) from the RHIC and LHC experiments. Light (anti)nuclei V 2 have been compared with that of (anti)proton. We observed a similar trend in light nuclei V 2 to that in identified hadron V 2 with respect to the general observations such as dependence, low mass ordering, and centrality dependence. We also compared the difference of nuclei and antinuclei V 2 with the corresponding difference of V 2 of proton and antiproton at various collision energies. Qualitatively they depict similar behavior. We also compare the data on light nuclei V 2 to various theoretical models such as blast-wave and coalescence. We then present a prediction of V 2 for 3 He and 4 He using coalescence and blast-wave models.

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Light nuclei production in heavy-ion collisions at relativistic energies

Cited by 26 publications

References 31 publications

Production of deuterons, tritons, He3 nuclei, and their antinuclei in pp collisions at s=

Production of deuterons, tritons, He3 nuclei, and their antinuclei in pp collisions at s=

Methods for separation of deuterons produced in the medium and in jets in high-energy collisions

A Review of Elliptic Flow of Light Nuclei in Heavy-Ion Collisions at RHIC and LHC Energies

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