scholarly journals Heavy quark production in pA collisions: The double parton scattering contribution

2018 ◽  
Vol 33 (25) ◽  
pp. 1850141 ◽  
Author(s):  
E. R. Cazaroto ◽  
V. P. Gonçalves ◽  
F. S. Navarra
Keyword(s):  
Heavy Quark ◽  
Cross Sections ◽  
Lhcb Collaboration ◽  
Heavy Quark Production ◽  
Double Parton Scattering ◽  
High Energies ◽  
Quark Production ◽  
Scattering Contribution ◽  
Saturation Effects ◽  
Parton Scattering

In this paper, we estimate the double parton scattering (DPS) contribution for the heavy quark production in pA collisions at the LHC. The cross-sections for the charm and bottom production are estimated using the dipole approach, taking into account the saturation effects, which are important for high energies and for the scattering with a large nucleus. We compare the DPS contribution with the single parton scattering one and demonstrate that in the case of charm production, both are similar in the kinematical range probed by the LHC. Predictions for the rapidity range analyzed by the LHCb Collaboration are also presented. Our results indicate that the study of the DPS contribution for the heavy quark production in pPb collisions at the LHC is feasible and can be useful to probe the main assumptions of the approach.

PARTON SATURATION APPROACH IN HEAVY QUARK PRODUCTION AT HIGH ENERGIES

2004 ◽  
Vol 19 (34) ◽  
pp. 2525-2539 ◽  
Author(s):  
V. P. GONÇALVES ◽  
M. V. T. MACHADO
Keyword(s):  
Quantum Chromodynamics ◽  
Heavy Quark ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Parton Density ◽  
Heavy Quark Production ◽  
High Energies ◽  
Ion Collisions ◽  
Quark Production ◽  
Density Regime

The high parton density regime of the quantum chromodynamics (QCD), where the physics of parton saturation is expected to be dominant, is briefly discussed. Some phenomenological aspects of saturation are described, mainly focusing on possible signatures of the nonlinear QCD dynamics in the heavy quark production in electron–proton/nucleus collisions. Implications of these effects in the heavy quark production in ultraperipheral heavy-ion collisions are also presented.

HEAVY QUARK PRODUCTION BY HARD DIFFRACTIVE SCATTERING

1994 ◽  
Vol 09 (03) ◽  
pp. 247-257
Author(s):  
TETSUO ARISAWA
Keyword(s):  
Monte Carlo ◽  
Heavy Quark ◽  
Cross Sections ◽  
Top Quarks ◽  
New Method ◽  
Heavy Quark Production ◽  
Monte Carlo Event ◽  
Diffractive Scattering ◽  
Quark Production

Heavy quark production in hard diffractive scattering is analyzed with evaluation of cross-sections and Monte-Carlo event generations. “Super hard” Pomeron, the existence of which was recently supported by the UA8 collaboration at CERN [Formula: see text] Collider [Formula: see text], is included by proposing a new method of determining Pomeron structures. Detection of (anti-)top quarks in the single diffractive processes is also mentioned.

HEAVY-QUARK PRODUCTION IN PROTON-NUCLEUS COLLISIONS AT THE LHC

2005 ◽  
Vol 20 (19) ◽  
pp. 4462-4468 ◽  
Author(s):  
E. CATTARUZZA ◽  
A. DEL FABBRO ◽  
D. TRELEANI
Keyword(s):  
Heavy Quark ◽  
Cross Sections ◽  
Heavy Quarks ◽  
Heavy Quark Production ◽  
Forward Rapidity ◽  
Text Production ◽  
Quark Production

One may expect a large rate of events, in hadron-nucleus collisions at the LHC, with several pairs of heavy-quarks produced contemporarily by multiple parton interactions. We estimate the inclusive cross sections of [Formula: see text], [Formula: see text] and [Formula: see text] production in p–A collisions in the central and in the forward rapidity regions.

scholarly journals Revisiting the production of $$J/\psi $$ pairs at the LHC

2020 ◽  
Vol 80 (11) ◽  
Author(s):  
A. A. Prokhorov ◽  
A. V. Lipatov ◽  
M. A. Malyshev ◽  
S. P. Baranov
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Effective Cross Section ◽  
Lhcb Collaboration ◽  
Kinematical Region ◽  
Final States ◽  
Scattering Mechanism ◽  
Initial State ◽  
Double Parton Scattering ◽  
Parton Scattering

AbstractWe consider the prompt double $$J/\psi $$ J / ψ production in pp collisions at the LHC in the framework of $$k_T$$ k T -factorization QCD approach. Using the fragmentation mechanism, we evaluate the color octet contributions to the production cross sections taking into account the combinatorial effects of multiple gluon radiation in the initial state driven by the Ciafaloni–Catani–Fiorani–Marchesini evolution equation. We demonstrate the importance of these contributions in a certain kinematical region covered by the CMS and ATLAS measurements. On the other hand, the experimental data taken by the LHCb Collaboration at forward rapidities and moderate transverse momenta can be described well by $${{{\mathcal {O}}}}(\alpha _s^4)$$ O ( α s 4 ) color singlet terms and contributions from the double parton scattering mechanism. The extracted value of the effective cross section is compatible with many other estimations based on different final states.

scholarly journals Heavy Quark Production at High Energy

2001 ◽  
Vol 2001 (05) ◽  
pp. 053-053 ◽  
Author(s):  
Richard D Ball ◽  
R. Keith Ellis
Keyword(s):  
Heavy Quark ◽  
High Energy ◽  
Heavy Quark Production ◽  
Quark Production

scholarly journals Erratum to: “Heavy quark production via supersymmetric interaction at a neutrino factory”

2001 ◽  
Vol 519 (3-4) ◽  
pp. 285
Author(s):  
Debrupa Chakraverty ◽  
Anindya Datta ◽  
Biswarup Mukhopadhyaya
Keyword(s):  
Heavy Quark ◽  
Heavy Quark Production ◽  
Neutrino Factory ◽  
Quark Production
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