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7 results on '"Barnafoeldi, Gergely G."'

1. Disentangling Soft and Hard Hadron Yields in PbPb Collisions at $\sqrt{s_{NN}}$ = 2.76 ATeV

Author

Urmossy, Karoly, Biró, Tamás S., Barnaföldi, Gergely G., and Xu, Zhangbu

Subjects
High Energy Physics - Phenomenology
Abstract

We demonstrate that charged pion spectra in central and peripheral PbPb collisions at $\sqrt{s}$ = 2.76 ATeV obtained via perturbative quantum chromodynamics improved parton model calculations [17] can be approximated by the Tsallis distribution for transverse momenta $p_T \geq$ 4 GeV/c. Then, we propose a model in which, hadrons produced in heavy-ion collisions stem either from "soft" or "hard" processes, and are distributed according to the Tsallis distribution in both types of yields. We describe transverse spectra as well as azimuthal anisotropy ($v_2$) of charged hadrons stemming from various centrality PbPb collisions at $\sqrt{s}$ = 2.76 ATeV [40,41,42] analytically. In addition, we find that the anisotropy decreases for more central collisions., Comment: 10 pages, 4 figures, 4 tables

Published
2014

2. Pion Production Via Resonance Decay in a Non-extensive Quark-Gluon Medium with Non-additive Energy Composition Rule

Author

Urmossy, Karoly, Biro, Tamas S., and Barnaföldi, Gergely G.

Subjects
High Energy Physics - Phenomenology
Abstract

Resonance production and decay into pion pairs is simulated in a non-extensive quark matter with multi-particle interactions. Final state pion spectra are found to take the form of the Tsallis distribution, in accordance with measurements. It has also been shown that, if a large number of particles with these multi-particle interactions are constrained to a constant energy hyper-surface in phase space, the one-particle distribution is the Tsallis distribution.

Published
2011
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3. Expected nuclear modifications and pseudorapidity asymmetry in p(d)Pb collisions at the LHC

Author

Adeluyi, Adeola, Barnaföldi, Gergely G., Fai, George, and Lévai, Péter

Subjects
High Energy Physics - Phenomenology
Abstract

We calculate nuclear modification factors and pseudorapidity asymmetries in $pA$ and $dA$ collisions in a pQCD-improved parton model. With the calculations tuned to describe existing spectra from $pp$ collisions and asymmetric systems at midrapidity and large rapidities at FNAL and RHIC energies, we make predictions for LHC energies., Comment: 8 pages; 4 figures. To appear in the proceedings of the 3rd International Workshop on High-PT Physics at the LHC, March, 16-19, 2008, Tokaj, Hungary

Published
2009

4. Relativistic light-on-heavy nuclear collisions and the implied rapidity asymmetry

Author

Adeluyi, Adeola, Barnaföldi, Gergely G., Fai, George, and Lévai, Péter

Subjects
High Energy Physics - Phenomenology
Abstract

We calculate pseudorapidity ($\eta$) asymmetry in $pA$ and $dA$ collisions in a pQCD-improved parton model. With the calculations tuned to describe existing spectra from $pp$ collisions and asymmetric systems at midrapidity and large rapidities at FNAL and RHIC energies, we investigate the roles of nuclear shadowing and multiple scattering on the observed asymmetry. Using this framework, we make predictions for pseudorapidity asymmetries at high $p_T$ and large $\eta$ in a wide range of energies up to LHC., Comment: 10 pages, 8 figures; expanded description of model, added new references

Published
2008

5. Predictions for p plus pb collisions at root s(nn)=5 tev

Author

Albacete, Javier L., Armesto, Nestor, Baier, Rudolf, Barnafoeldi, Gergely G., Barrette, Jean, De, Somnath, Deng, Wei-Tian, Dumitru, Adrian, Dusling, Kevin, Eskola, Kari J., Fries, Rainer, Fujii, Hirotsugu, Gelis, Francois, Gyulassy, Miklos, He, Yuncun, Helenius, Ilkka, Kang, Zhong-Bo, Kopeliovich, Boris Z., Kutak, Krzysztof, Levai, Peter, Lin, Zi-Wei, Mueller, Alfred H., Nara, Yasushi, Nemchik, Jan, Papp, Gabor, Petrovici, Mihai, Qiu, Jian-Wei, Rezaeian, Amir H., Ru, Peng, Schiff, Dominique, Sapeta, Sebastian, Pop, Vasile Topor, Tribedy, Prithwish, Venugopalan, Raju, Vitev, Ivan, Vogt, Ramona, Wang, Enke, Wang, Xin-Nian, Xing, Hongxi, Xu, Rong, Zhang, Ben-Wei, and Zhang, Wei-Ning

Published
2013

6. Predictions for p+pb collisions at (raiz cuadrada de)8nn = 5 tev

Author

Albacete, Javier L., Armesto, Nestor, Baier, Rudolf, Barnafoeldi, Gergely G., Barrette, Jean, De, Somnath, Deng, Wei-Tian, Dumitru, Adrian, Dusling, Kevin, Eskola, Kari J., Fries, Rainer, Fujii, Hirotsugu, Gelis, Francois, Gyulassy, Miklos, He, Yuncun, Helenius, Ilkka, Kang, Zhong-Bo, Kopeliovich, Boris Z., Kutak, Krzysztof, Levai, Peter, Lin, Zi-Wei, Mueller, Alfred H., Nara, Yasushi, Nemchik, Jan, Papp, Gabor, Petrovici, Mihai, Qiu, Jian-Wei, Rezaeian, Amir H., Ru, Peng, Schiff, Dominique, Sapeta, Sebastian, Pop, Vasile Topor, Tribedy, Prithwish, Venugopalan, Raju, Vitev, Ivan, Vogt, Ramona, Wang, Enke, Wang, Xin-Nian, Xing, Hongxi, Xu, Rong, Zhang, Ben-Wei, and Zhang, Wei-Ning

Published
2013

7. Predictions for $p+Pb$ Collisions at $\sqrt s_NN = 5 TeV$

Author

Albacete, Javier L., Armesto, Nestor, Baier, Rudolf, Barnafoeldi, Gergely G., Barrette, Jean, De, Somnath, Deng, Wei-Tian, Dumitru, Adrian, Dusling, Kevin, Eskola, Kari J., Fries, Rainer, Fujii, Hirotsugu, Gelis, Francois, Gyulassy, Miklos, He, Yuncun, Helenius, Ilkka, Kang, Zhong-Bo, Kopeliovich, Boris Z., Kutak, Krzysztof, Levai, Peter, Lin, Zi-Wei, Mueller, Alfred H., Nara, Yasushi, Nemchik, Jan, Papp, Gabor, Petrovici, Mihai, Qiu, Jian-Wei, Rezaeian, Amir H., Ru, Peng, Schiff, Dominique, Sapeta, Sebastian, Pop, Vasile Topor, Tribedy, Prithwish, Venugopalan, Raju, Vitev, Ivan, Vogt, Ramona, Wang, Enke, Wang, Xin-Nian, Xing, Hongxi, Xu, Rong, Zhang, Ben-Wei, Zhang, Wei-Ning, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Fakultät für Physik, Universität Bielefeld, Laboratoire Aimé Cotton (LAC), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Théorique et Hautes Energies (LPTHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Frederick Seitz Materials Research Laboratory, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Nuclear Theory, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Perturbative QCD, FOS: Physical sciences, High Energy Physics::Experiment, hard probes of heavy-ion collisions, Nuclear Experiment
Abstract

Predictions for charged hadron, identified light hadron, quarkonium, photon, jet and gauge bosons in p+Pb collisions at sqrt s_NN = 5 TeV are compiled and compared. When test run data are available, they are compared to the model predictions., 84 pages

Published
2013
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