QCD radiative corrections to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>χ</mml:mi><mml:mrow><mml:mi>c</mml:mi><mml:mi>J</mml:mi></mml:mrow></mml:msub></mml:math>production at hadron colliders

Ma, Y.; Wang, Kai; Chao, Kuang-Ta

doi:10.1103/physrevd.83.111503

Cited by 157 publications

(181 citation statements)

References 32 publications

Supporting

Mentioning

163

Contrasting

Order By: Relevance

“…These measurements are compared in figure 6. The ratios are expected to be similar for pp and pp collisions since χ c mesons are produced predominantly via gluongluon interactions and depend only weakly on the centre-of-mass energy and y coverage [5,28]. The results from this analysis are compatible with the CMS and CDF results.…”

Section: Resultssupporting

confidence: 80%

See 1 more Smart Citation

Measurement of the relative rate of prompt χ c0, χ c1 and χ c2 production at $ \sqrt{s}=7 $ TeV

Aaij¹,

Adeva²,

Adinolfi³

et al. 2013

J. High Energ. Phys.

View full text Add to dashboard Cite

Measurement of the relative rate of prompt χ c0 , χ c1 and χ c2 production at √ s = 7 TeVThe LHCb collaboration E-mail: tournefier@lapp.in2p3.frAbstract: Prompt production of charmonium χ c0 , χ c1 and χ c2 mesons is studied using proton-proton collisions at the LHC at a centre-of-mass energy of √ s = 7 TeV. The χ c mesons are identified through their decay to J/ψγ, with J/ψ → µ + µ − using photons that converted in the detector. A data sample, corresponding to an integrated luminosity of 1.0 fb −1 collected by the LHCb detector, is used to measure the relative prompt production rate of χ c1 and χ c2 in the rapidity range 2.0 < y < 4.5 as a function of the J/ψ transverse momentum from 3 to 20 GeV/c. First evidence for χ c0 meson production at a high-energy hadron collider is also presented.

show abstract

Section: Resultssupporting

confidence: 80%

“…Figure 5 (right) shows a comparison of this measurement with the next to leading order (NLO) NRQCD calculation of ref. [5] and with the LO NRQCD calculation of ref. [24].…”

Section: Resultsmentioning

confidence: 99%

Measurement of the relative rate of prompt χ c0, χ c1 and χ c2 production at $ \sqrt{s}=7 $ TeV

Aaij¹,

Adeva²,

Adinolfi³

et al. 2013

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…The value measured in this work, F J/ψ χc = 32 ± 9%, is consistent with the world average of 25 ± 5 % after accounting for A dependencies in the fixed target experiments [76] 4 . CEM estimate an energy and p T independent χ c feed-down of 40% [52] whereas recent NLO NRQCD calculations estimate 25-30% at p T = 10 GeV/c [85]. Therefore, are both consistent with the data.…”

Section: B Total Cross Section Of Inclusive J/ψsupporting

confidence: 76%

Ground and excited state charmonium production inp+pcollisions ats=200 GeV

Adare¹,

Afanasiev²,

Aidala³

et al. 2012

Phys. Rev. D

View full text Add to dashboard Cite

We report on charmonium measurements [J/ψ (1S), ψ ′ (2S), and χc (1P)] in p+p collisions at √ s = 200 GeV. We find that the fraction of J/ψ coming from the feed-down decay of ψ ′ and χc in the midrapidity region (|y| < 0.35) is 9.6 ± 2.4% and 32 ± 9%, respectively. We also present the pT and rapidity dependencies of the J/ψ yield measured via dielectron decay at midrapidity (|y| < 0.35) and via dimuon decay at forward rapidity (1.2 < |y| < 2.2). The statistical precision greatly exceeds that reported in our previous publication [Phys. Rev. Lett. 98, 232002 (2007)]. The new results are compared with other experiments and discussed in the context of current charmonium production models.

show abstract

“…1 ) = 0.26 ± 0.07, which is almost the same with that for χ c1 [714]. With this input, the authors were able to account for the CDF data [67,708].…”

Section: Lattice Qcdsupporting

confidence: 62%

The hidden-charm pentaquark and tetraquark states

et al. 2016

View full text Add to dashboard Cite

In the past decade many charmonium-like states were observed experimentally. Especially those charged charmoniumlike Z c states and bottomonium-like Z b states can not be accommodated within the naive quark model. These charged Z c states are good candidates of either the hidden-charm tetraquark states or molecules composed of a pair of charmed mesons. Recently, the LHCb Collaboration discovered two hidden-charm pentaquark states, which are also beyond the quark model. In this work, we review the current experimental progress and investigate various theoretical interpretations of these candidates of the multiquark states. We list the puzzles and theoretical challenges of these models when confronted with the experimental data. We also discuss possible future measurements which may distinguish the theoretical schemes on the underlying structures of the hidden-charm multiquark states.

show abstract

QCD radiative corrections toχcJproduction at hadron colliders

Cited by 157 publications

References 32 publications

Measurement of the relative rate of prompt χ c0, χ c1 and χ c2 production at $ \sqrt{s}=7 $ TeV

Measurement of the relative rate of prompt χ c0, χ c1 and χ c2 production at $ \sqrt{s}=7 $ TeV

Ground and excited state charmonium production inp+pcollisions ats=200 GeV

The hidden-charm pentaquark and tetraquark states

Contact Info

Product

Resources

About