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Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Journal , Other literature type 01 Nov 2018Embargo end date: 01 Jan 2018 Netherlands, Italy, Turkey, United States, Italy, Norway, Norway, Turkey, Croatia, Italy, Italy, Italy, Italy, Italy, Italy, Finland, Netherlands, Italy, Italy, Germany, Italy, Turkey, Turkey, Croatia, Finland, Germany, Germany, Germany, Norway, Italy, Italy, France, Italy, Italy, Denmark, Greece, Croatia, Italy, Croatia, Norway, Italy, Norway Publisher:Springer Science and Business Media LLCJournal:Journal of High Energy Physics, volume 2,018 (eissn: 1029-8479,

Authors: The ALICE collaboration; S. Acharya; F. T.-. Acosta; D. Adamová; J. Adolfsson; M. M. Aggarwal; G. Aglieri Rinella; +193 Authors

The ALICE collaboration; S. Acharya; F. T.-. Acosta; D. Adamová; J. Adolfsson; M. M. Aggarwal; G. Aglieri Rinella; M. Agnello; N. Agrawal; Z. Ahammed; S. U. Ahn; S. Aiola; A. Akindinov; M. Al-Turany; S. N. Alam; D. S. D. Albuquerque; D. Aleksandrov; B. Alessandro; R. Alfaro Molina; Y. Ali; A. Alici; A. Alkin; J. Alme; T. Alt; L. Altenkamper; I. Altsybeev; C. Andrei; D. Andreou; H. A. Andrews; A. Andronic; M. Angeletti; V. Anguelov; C. Anson; T. Antičić; F. Antinori; P. Antonioli; N. Apadula; L. Aphecetche; H. Appelshäuser; S. Arcelli; R. Arnaldi; O. W. Arnold; I. C. Arsene; M. Arslandok; B. Audurier; A. Augustinus; R. Averbeck; M. D. Azmi; A. Badalà; Y. W. Baek; S. Bagnasco; R. Bailhache; R. Bala; A. Baldisseri; M. Ball; R. C. Baral; A. M. Barbano; R. Barbera; F. Barile; L. Barioglio; G. G. Barnaföldi; L. S. Barnby; V. Barret; P. Bartalini; K. Barth; E. Bartsch; N. Bastid; S. Basu; G. Batigne; B. Batyunya; P. C. Batzing; J. L. Bazo Alba; I. G. Bearden; H. Beck; C. Bedda; N. K. Behera; I. Belikov; F. Bellini; H. Bello Martinez; R. Bellwied; L. G. E. Beltran; V. Belyaev; G. Bencedi; S. Beole; A. Bercuci; Y. Berdnikov; D. Berenyi; R. A. Bertens; D. Berzano; L. Betev; P. P. Bhaduri; A. Bhasin; I. R. Bhat; B. Bhattacharjee; J. Bhom; A. Bianchi; L. Bianchi; N. Bianchi; J. Bielčík; J. Bielčíková; A. Bilandzic; G. Biro; R. Biswas; S. Biswas; J. T. Blair; D. Blau; C. Blume; G. Boca; F. Bock; A. Bogdanov; L. Boldizsár; M. Bombara; G. Bonomi; M. Bonora; H. Borel; A. Borissov; M. Borri; E. Botta; C. Bourjau; L. Bratrud; P. Braun-Munzinger; M. Bregant; T. A. Broker; M. Broz; E. J. Brucken; E. Bruna; G. E. Bruno; D. Budnikov; H. Buesching; S. Bufalino; P. Buhler; P. Buncic; O. Busch; Z. Buthelezi; J. B. Butt; J. T. Buxton; J. Cabala; D. Caffarri; H. Caines; A. Caliva; E. Calvo Villar; R. S. Camacho; P. Camerini; A. A. Capon; F. Carena; W. Carena; F. Carnesecchi; J. Castillo Castellanos; A. J. Castro; E. A. R. Casula; C. Ceballos Sanchez; S. Chandra; B. Chang; W. Chang; S. Chapeland; M. Chartier; S. Chattopadhyay; S. Chattopadhyay; A. Chauvin; C. Cheshkov; B. Cheynis; V. Chibante Barroso; D. D. Chinellato; S. Cho; P. Chochula; S. Choudhury; T. Chowdhury; P. Christakoglou; C. H. Christensen; P. Christiansen; T. Chujo; S. U. Chung; C. Cicalo; L. Cifarelli; F. Cindolo; J. Cleymans; F. Colamaria; D. Colella; A. Collu; M. Colocci; M. Concas; G. Conesa Balbastre; Z. Conesa del Valle; J. G. Contreras; T. M. Cormier; Y. Corrales Morales; I. Cortés Maldonado; P. Cortese; M. R. Cosentino; F. Costa; S. Costanza; J. Crkovská; P. Crochet; E. Cuautle; L. Cunqueiro; T. Dahms; A. Dainese; M. C. Danisch; A. Danu; D. Das;

doi: 10.1007/jhep11(2018)013 , 10.15120/gsi-2019-00425 , 10.48550/arxiv.1802.09145

arXiv: 1802.09145 , http://arxiv.org/abs/1802.09145

handle: 11368/2931330 , 11250/2575892 , 11250/2580116 , 10852/67971 , 11583/2746892 , 11577/3326899 , 11379/513863 , 11386/4726448 , 11573/1469830 , 11584/264135 , 11589/177530 , 11585/664232 , 20.500.11769/357903 , 2318/1710767 , 11369/426811 , 11579/102500 , 1956/19367 , 11571/1275048 , 11586/224492 , 10900/89564

Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC

- Summary
- Subjects

Abstract

Abstract We report the measured transverse momentum (p T) spectra of primary charged particles from pp, p-Pb and Pb-Pb collisions at a center-of-mass energy $$ \sqrt{s_{\mathrm{NN}}}=5.02 $$ s N N = 5.02 TeV in the kinematic range of 0.15 < p T < 50 GeV/c and |η| < 0.8. A significant improvement of systematic uncertainties motivated the reanalysis of data in pp and Pb-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ s N N = 2.76 TeV, as well as in p-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}}=5.02 $$ s N N = 5.02 TeV, which is also presented. Spectra from Pb-Pb collisions are presented in nine centrality intervals and are compared to a reference spectrum from pp collisions scaled by the number of binary nucleon-nucleon collisions. For central collisions, the p T spectra are suppressed by more than a factor of 7 around 6–7 GeV/c with a significant reduction in suppression towards higher momenta up to 30 GeV/c. The nuclear modification factor R pPb, constructed from the pp and p-Pb spectra measured at the same collision energy, is consistent with unity above 8 GeV/c. While the spectra in both pp and Pb-Pb collisions are substantially harder at $$ \sqrt{s_{\mathrm{NN}}}=5.02 $$ s N N = 5.02 TeV compared to 2.76 TeV, the nuclear modification factors show no significant collision energy dependence. The obtained results should provide further constraints on the parton energy loss calculations to determine the transport properties of the hot and dense QCD matter.

Countries

Netherlands, Italy, Turkey, United States, Italy, Norway, Norway, Turkey, Croatia, Italy, Italy, Italy, Italy, Italy, Italy, Finland, Netherlands, Italy, Italy, Germany, Italy, Turkey, Turkey, Croatia, Finland, Germany, Germany, Germany, Norway, Italy, Italy, France, Italy, Italy, Denmark, Greece, Croatia, Italy, Croatia, Norway, Italy, Norway

Related Organizations

University of Oslo
Norway
Centre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules
France
University of Zagreb
Croatia
Yıldız Technical University
Turkey
Hiroshima University
Japan

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Keywords

550, momentum [up], binary, heavy ion: scattering ; transverse momentum: momentum spectrum ; quantum chromodynamics: matter ; parton: energy loss ; momentum: high ; up: momentum ; pp: scattering ; nucleus ; charged particle ; suppression ; energy dependence ; impact parameter ; transport theory ; nucleon nucleon ; CERN LHC Coll ; kinematics ; binary, QC770-798, hiukkasfysiikka, nucl-ex, Atomic, 2760 GeV-cms/nucleon, transverse momentum: momentum spectrum, Heavy Ion Experiments; Heavy-ion collision; Nuclear and high energy physics, Particle and Plasma Physics, nucleon nucleon, high [momentum], scattering [p p], info:eu-repo/classification/ddc/530, impact parameter, Physics, ddc:530, Heavy Ion Experiments; Heavy-ion collision, VDP::Kjerne- og elementærpartikkelfysikk: 431, MULTIPLICITY DEPENDENCE; CENTRALITY DEPENDENCE; HADRONS; SUPPRESSION; MODEL; KAON; PION, :Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP], Nuclear and plasma physics, CERN LHC Coll, Particle and high energy physics, kinematics, Mathematical physics, Physical Sciences, Heavy Ion Experiment, Heavy Ion Experiments, Heavy-ion collision, Nuclear and High Energy Physics., pp: scattering, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], energy loss [parton], Heavy Ion Experiments; Heavy-ion collision; Nuclear and High Energy Physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], energy dependence, Heavy Ion Experiments, scattering [heavy ion], [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], matter [quantum chromodynamics], 5020 GeV-cms/nucleon, quantum chromodynamics: matter, VDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431, ta114, nucleus, Molecular, scattering [p nucleus], heavy ion collision, * Automatic Keywords *, momentum: high, parton: energy loss, heavy ion: scattering, momentum spectrum [transverse momentum], heavy ion experiments, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), quark gluon plasma, Heavy Ion Experiments, Heavy-ion collision, Heavy-ion collision, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], transport theory, [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment, Mathematical Physics, Quantum Physics, Particle and High Energy Physics, suppression, Nuclear and Plasma Physics, Nuclear & Particles Physics, charged particle, 520, VDP::Nuclear and elementary particle physics: 431, Particle Physics - Experiment, heavy-ion collision, Nuclear and High Energy Physics, nucleon nucleon: scattering, [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], heavy ion experiments; heavy-ion collision, VDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431, FOS: Physical sciences, 530, Nuclear and particle physics. Atomic energy. Radioactivity, Nuclear Physics - Experiment, Nuclear, up: momentum, p nucleus: scattering, hep-ex, :Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP], scattering [nucleon nucleon], 541, experimental results