On the rapidity dependence of the average transverse momentum in hadronic collisions

Abstract

The energy and rapidity dependence of the average transverse momentum $⟨p_T⟩$ in $pp$ and $pA$ collisions at RHIC and LHC energies are estimated using the Colour Glass Condensate (CGC) formalism. We update previous predictions for the $p_T$ - spectra using the hybrid formalism of the CGC approach and two phenomenological models for the dipole - target scattering amplitude. We demonstrate that these models are able to describe the RHIC and LHC data for the hadron production in $pp$, $dAu$ and $pPb$ collisions at $p_T\le 20$ GeV. Moreover, we present our predictions for $⟨p_T⟩$ and demonstrate that the ratio $⟨p_T(y)⟩/⟨p_T(y=0)⟩$ decreases with the rapidity and has a behaviour similar to that predicted by hydrodynamical calculations.

11 pages, 7 figures; revised version: new results for the average transverse momentum at partonic level added in fig. 4; Results and Discussion section has been improved and enlarged

References in corpus (31)

• The Color Glass Condensate
• Observation of long-range near-side angular correlations in proton-lead collisions at the LHC
• The ridge in proton-proton collisions at the LHC
• Non-linear QCD meets data: A global analysis of lepton-proton scattering with running coupling BK evolution
• Correlations from hydrodynamic flow in p-Pb collisions
• CGC predictions for p+Pb collisions at the LHC
• Impact parameter dependent colour glass condensate dipole model
• Single Inclusive Hadron Production at RHIC and the LHC from the Color Glass Condensate
• Long Range Correlations and the Soft Ridge in Relativistic Nuclear Collisions
• Forward Neutral Pion Production in p+p and d+Au Collisions at sqrt(s_NN)=200 GeV
• Explanation of systematics of CMS p+Pb high multiplicity di-hadron data at ${\sqrt{s}}_{\mathrm{NN}}=5.02$ TeV
• Eccentric protons? Sensitivity of flow to system size and shape in p+p, p+Pb and Pb+Pb collisions
• Angular Correlations in Gluon Production at High Energy
• Direct numerical solution of the coordinate space Balitsky-Kovchegov equation at next to leading order
• Saturation QCD predictions with heavy quarks at HERA
• Particle Production at High Energy and Large Transverse Momentum - "The Hybrid Formalism" Revisited
• CGC predictions for p+A collisions at the LHC and signature of QCD saturation
• Tracing the origin of azimuthal gluon correlations in the color glass condensate
• Azimuthal asymmetries and the emergence of "collectivity" from multi-particle correlations in high-energy pA collisions
• Exclusive vector meson production at HERA from QCD with saturation
• Elliptic flow in proton-proton collisions at 7 TeV
• Geometric scaling in diffractive deep inelastic scattering
• Saturation physics at HERA and RHIC: An unified description
• Two-particle correlations in high energy collisions and the gluon four-point function
• Initial state angular asymmetries in high energy p+A collisions: spontaneous breaking of rotational symmetry by a color electric field and C-odd fluctuations
• Geometric Scaling at RHIC and LHC
• Azimuthal harmonics of color fields in a high energy nucleus
• Effect of event selection on jetlike correlation measurement in $d$+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV
• Forward gluon production in hadron-hadron scattering with Pomeron loops
• Di-photon "Ridge" in p+p and p+A collisions at RHIC and the LHC
• Hadron and Photon Production in the Forward Region at RHIC and LHC

Cited by in corpus (11)

• Intrinsic charm contribution to the prompt atmospheric neutrino flux
• Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at sqrt(s[NN]) = 5.02 TeV
• $D$ - meson production at very forward rapidities: estimating the intrinsic charm contribution
• Multiplicity and pseudorapidity density distributions of charged particles produced in pp, pA and AA collisions at RHIC \& LHC energies
• Nuclear $p_{\perp }$-broadening of Drell-Yan and quarkonium production from SPS to LHC
• Rapidity dependence of transverse-momentum multiplicity correlations
• Single inclusive jet photoproduction at very forward rapidities in $pp$ and $pPb$ collisions at the LHC
• Thermal radiation and inclusive production in the running coupling $k_T$ -- factorization approach
• Multiplicity Distributions and the Frontier between Soft and Hard Physics
• The rapidity dependence of the average transverse momentum in p+p and p+Pb collisions - revisited
• Kaon production in high multiplicity events at the LHC