Transverse momentum dependence of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi></mml:math>polarization at midrapidity in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math>collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn><mml

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doi:10.1103/physrevd.82.012001

Cited by 70 publications

(25 citation statements)

References 39 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

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“…2 that our NLO NRQCD predictions nicely describe the p T distributions from PHENIX [18] (a) and CMS [19] (b) as well as the W distributions from H1 [14,17] (c), with most of the data points falling inside the yellow (shaded) error band. In all these cases, inclusion of the NLO corrections tends to improve the agreement.…”

mentioning

confidence: 89%

“…We thank G. Kramer for useful discussions and B. Jacak and C. Luiz da Silva for help with the comparison to the PHENIX data [18]. This work was supported in part by BMBF Grant No.…”

mentioning

confidence: 95%

“…1). We then compare the p T distributions measured by PHENIX at RHIC [18] and CMS at the LHC [19] as well as the W and z distributions measured by 022003-2 H1 at HERA1 [17] and HERA2 [14] with our respective NLO predictions based on these CO LDMEs (see Fig. 2).…”

mentioning

confidence: 99%

“…Notice . NLO NRQCD predictions of J=c hadro-and photoproduction resulting from the fit compared to PHENIX [18], CMS [19], and H1 [14,17] data not included in the fit.…”

mentioning

confidence: 99%

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ReconcilingJ/ψProduction at HERA, RHIC, Tevatron, and LHC with Nonrelativistic QCD Factorization at Next-to-Leading Order

2011

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We calculate the cross section of inclusive direct J/ψ hadroproduction at next-to-leading order within the factorization formalism of nonrelativistic quantum chromodynamics, including the full relativistic corrections due to the intermediate 1S(0)[8], 3S(1)[8], and 3P(J)[8] color-octet states. We perform a combined fit of the color-octet long-distance matrix elements to the transverse-momentum (p(T)) distributions measured by CDF at the Fermilab Tevatron and H1 at DESY HERA and demonstrate that they also successfully describe the p(T) distributions from PHENIX at BNL RHIC and CMS at the CERN LHC as well as the photon-proton c.m. energy and (with worse agreement) the inelasticity distributions from H1. This provides a first rigorous test of nonrelativistic QCD factorization at next-to-leading order. In all experiments, the color-octet processes are shown to be indispensable.

show abstract

mentioning

confidence: 89%

“…We thank G. Kramer for useful discussions and B. Jacak and C. Luiz da Silva for help with the comparison to the PHENIX data [18]. This work was supported in part by BMBF Grant No.…”

mentioning

confidence: 95%

mentioning

confidence: 99%

“…Notice . NLO NRQCD predictions of J=c hadro-and photoproduction resulting from the fit compared to PHENIX [18], CMS [19], and H1 [14,17] data not included in the fit.…”

mentioning

confidence: 99%

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ReconcilingJ/ψProduction at HERA, RHIC, Tevatron, and LHC with Nonrelativistic QCD Factorization at Next-to-Leading Order

2011

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“…The polarization for inclusive J / ψ production (including the feed-down from higher charmonium states) in hadronic interactions has been measured by several experiments at Fermilab [22], Brookhaven [23] and DESY [24]. The CDF experiment, in collisions at , measured a small longitudinal J / ψ polarization, going to zero at small p T .…”

Section: Introductionmentioning

confidence: 99%

Measurement of J/ψ polarization in pp collisions at $\sqrt{s}=7\ \mathrm{TeV}$

Aaij¹,

Beteta²,

Adeva³

et al. 2013

Eur. Phys. J. C

141

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Heavy quarkonium: progress, puzzles, and opportunities

Brambilla¹,

Eidelman²,

Heltsley³

et al. 2011

Advances in the Physics of Particles and Nuclei

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103

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A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experimental activity. The early years of this period were chronicled in the Quarkonium Working Group (QWG) CERN Yellow Report (YR) in 2004, which presented a comprehensive review of the status of the field at that time and provided specific recommendations for further progress. However, the broad spectrum of subsequent breakthroughs, surprises, and continuing puzzles could only be partially anticipated. Since the release of the YR, the BESII program concluded only to give birth to BESIII; the B-factories and CLEO-c flourished; quarkonium production and polarization measurements at HERA and the Tevatron matured; and heavy-ion collisions at RHIC have opened a window on the deconfinement regime. All these experiments leave legacies of quality, precision, and unsolved mysteries for quarkonium physics, and therefore beg for continuing investigations at BESIII, the LHC, RHIC, FAIR, the Super Flavor and/or Tau-Charm factories, JLab, the ILC, and beyond. The list of newly-found conventional states expanded to include hc(1P ), χc2(2P ), B + c , and η b (1S). In addition, the unexpected and still-fascinating X(3872) has been joined by * Editors † Section coordinators ‡ Corresponding author: bkh2@cornell.edu more than a dozen other charmonium-and bottomonium-like "XY Z" states that appear to lie outside the quark model. Many of these still need experimental confirmation. The plethora of new states unleashed a flood of theoretical investigations into new forms of matter such as quark-gluon hybrids, mesonic molecules, and tetraquarks. Measurements of the spectroscopy, decays, production, and in-medium behavior of cc, bb, and bc bound states have been shown to validate some theoretical approaches to QCD and highlight lack of quantitative success for others. Lattice QCD has grown from a tool with computational possibilities to an industrialstrength effort now dependent more on insight and innovation than pure computational power. New effective field theories for the description of quarkonium in different regimes have been developed and brought to a high degree of sophistication, thus enabling precise and solid theoretical predictions. Many expected decays and transitions have either been measured with precision or for the first time, but the confusing patterns of decays, both above and below open-flavor thresholds, endure and have deepened. The intriguing details of quarkonium suppression in heavy-ion collisions that have emerged from RHIC have elevated the importance of separating hotand cold-nuclear-matter effects in quark-gluon plasma studies. This review systematically addresses all these matters and concludes by prioritizing directions for ongoing and future efforts.

show abstract

Transverse momentum dependence ofJ/ψpolarization at midrapidity inp+pcollisions ats=200

Cited by 70 publications

References 39 publications

ReconcilingJ/ψProduction at HERA, RHIC, Tevatron, and LHC with Nonrelativistic QCD Factorization at Next-to-Leading Order

ReconcilingJ/ψProduction at HERA, RHIC, Tevatron, and LHC with Nonrelativistic QCD Factorization at Next-to-Leading Order

Measurement of J/ψ polarization in pp collisions at $\sqrt{s}=7\ \mathrm{TeV}$

Heavy quarkonium: progress, puzzles, and opportunities

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