Study of Scaling in Hadronic Production of Dimuons

Yoh, J.; Herb, S. W.; Hom, D. C.; Lederman, Leon M.; Sens, J.C.; Snyder, H. D.; Ueno, K.; Brown, Bruce; Brown, C. N.; Innes, W. R.; Kephart, R.; Yamanouchi, T.; Fisk, R. J.; Ito, A. S.; Jöstlein, H.; Kaplan, Daniel M.

doi:10.1103/physrevlett.41.684

Cited by 111 publications

(31 citation statements)

References 17 publications

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“…This function is commonly used to reproduce the J/ψ p t distribution in hadronic collisions, see for instance [54][55][56]. Fit results for the three centrality classes are displayed as full lines in the figure.…”

Section: Inclusive J/ψ Mean Transverse Momentummentioning

confidence: 99%

Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

Adam¹,

Adamová²,

Aggarwal³

et al. 2016

J. High Energ. Phys.

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The production of J/ψ and ψ(2S) was studied with the ALICE detector in Pb-Pb collisions at the LHC. The measurement was performed at forward rapidity (2.5 < y < 4) down to zero transverse momentum (p t ) in the dimuon decay channel. Inclusive J/ψ yields were extracted in different centrality classes and the centrality dependence of the average p t is presented. The J/ψ suppression, quantified with the nuclear modification factor (R AA ), was measured as a function of centrality, transverse momentum and rapidity. Comparisons with similar measurements at lower collision energy and theoretical models indicate that the J/ψ production is the result of an interplay between color screening and recombination mechanisms in a deconfined partonic medium, or at its hadronization. Results on the ψ(2S) suppression are provided via the ratio of ψ(2S) over J/ψ measured in pp and Pb-Pb collisions.

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Section: Inclusive J/ψ Mean Transverse Momentummentioning

confidence: 99%

Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

Adam¹,

Adamová²,

Aggarwal³

et al. 2016

J. High Energ. Phys.

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show abstract

“…2 ) −6 [30]. Average p 2 T values resulting from these fits are 4.28 ± 0.31, 3.03 ± 0.40 and 3.63 ± 0.25 GeV/c 2 for d + Au collisions at negative, zero, and positive x F , respectively; compared with 2.51 ± 0.21 and 4.31 ± 0.85 GeV/c 2 for negative/positive and zero x F p+p collisions, respectively.…”

mentioning

confidence: 99%

J/ψProduction and Nuclear Effects ford+Auandp+pCollisions at
Adler¹,
Afanasiev²,
Aidala³
et al. 2006
Phys. Rev. Lett.

153

114

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J/ψ production in d + Au and p + p collisions at √ sNN = 200 GeV has been measured by the PHENIX experiment at rapidities −2.2 < y < +2.4. The cross sections and nuclear dependence of J/ψ production versus rapidity, transverse momentum, and centrality are obtained and compared to lower energy p + A results and to theoretical models. The observed nuclear dependence in d + Au collisions is found to be modest, suggesting that the absorption in the final state is weak and the shadowing of the gluon distributions is small and consistent with Dokshitzer-Gribov-LipatovAltarelli-Parisi-based parameterizations that fit deep-inelastic scattering and Drell-Yan data at lower energies.

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“….2 based on [3], scaled by the corresponding average number of binary collisions N coll for the Cu + Cu measurements. The contribution from bottom meson decay is estimated to be negligible for this transverse momentum region.…”

Section: Resultsmentioning

confidence: 99%

“…powers of ten for clarity (filled symbols) [2]. Solid lines are a fit to the p+p yield described in the text [3], scaled by the corresponding average number of binary collisions N coll . Right: cc production cross section as a function of rapidity in p+p collisions at √ s = 200 GeV, measured using semileptonic decay muons at forward rapidity (circles) [2] and electrons at mid-rapidity (square) [4].…”

Section: Introductionmentioning

confidence: 99%

Open Heavy Flavor Production at Forward Angles in PHENIX

Read¹

2013

Nuclear Physics A

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The measurement of the nuclear modification factor (R AA ) for heavy-flavor production in heavy-ion collisions tests predictions for cold-and hot-nuclear-matter effects. Heavy-flavor production in p+p collisions tests pQCD calculations and serves as a reference for understanding heavy-flavor production in heavy-ion collisions. Using the PHENIX muon-arm spectrometers, the transverse momentum spectra of inclusive muon candidates are measured for p+p and Cu + Cu collisions at √ s NN = 200 GeV. After subtracting backgrounds, we obtain the measured invariant yields of negative muons from the decay of heavy flavor mesons. For p+p collisions, we measure the charm-production cross section integrated over p T and in the rapidity range 1.4 < y < 1.9 to be dσ cc /dy = 0.139 ± 0.029 (stat)−0.058 (syst) mb. This result is compared to a recent FONLL calculation and to a PHENIX measurement at mid-rapidity. For Cu + Cu collisions, we measure the R AA for heavy-flavor muons in three centrality bins for 1 < p T < 4 GeV/c, with suppression observed for central collisions. We compare our measurement for central collisions to a recent theoretical prediction.

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Study of Scaling in Hadronic Production of Dimuons

Cited by 111 publications

References 17 publications

Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

J/ψProduction and Nuclear Effects ford+Auandp+pCollisions at
Adler¹,
Afanasiev²,
Aidala³
et al. 2006
Phys. Rev. Lett.

Open Heavy Flavor Production at Forward Angles in PHENIX

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Study of Scaling in Hadronic Production of Dimuons

Cited by 111 publications

References 17 publications

Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

J/ψProduction and Nuclear Effects ford+Auandp+pCollisions atAdler1, Afanasiev2, Aidala3 et al. 2006Phys. Rev. Lett.

Open Heavy Flavor Production at Forward Angles in PHENIX

Contact Info

Product

Resources

About

J/ψProduction and Nuclear Effects ford+Auandp+pCollisions at
Adler¹,
Afanasiev²,
Aidala³
et al. 2006
Phys. Rev. Lett.