From QCD-based hard-scattering to nonextensive statistical mechanical descriptions of transverse momentum spectra in high-energy pp and p(p)over-bar collisions

被引:114
作者
Wong, Cheuk-Yin [1 ]
Wilk, Grzegorz [2 ]
Cirto, Leonardo J. L. [3 ,4 ]
Tsallis, Constantino [3 ,4 ,5 ]
机构
[1] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA
[2] Natl Ctr Nucl Res, PL-00681 Warsaw, Poland
[3] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, RJ, Brazil
[4] Natl Inst Sci & Technol Complex Syst, BR-22290180 Rio De Janeiro, RJ, Brazil
[5] Santa Fe Inst, Santa Fe, NM 87501 USA
来源
PHYSICAL REVIEW D | 2015年 / 91卷 / 11期
关键词
PROTON-PROTON COLLISIONS; PARTICLE-PRODUCTION; CROSS-SECTION; TSALLIS DISTRIBUTION; CHARGED-PARTICLES; EIKONAL DIAGRAMS; JET-PRODUCTION; DISTRIBUTIONS; MODEL; THERMODYNAMICS;
D O I
10.1103/PhysRevD.91.114027
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Transverse spectra of both jets and hadrons obtained in high-energy pp and p (p) over bar collisions at central rapidity exhibit power-law behavior of 1/p(T)(n) at high p(T). The power index n is 4-5 for jet production and is 6-10 for hadron production. Furthermore, the hadron spectra spanning over 14 orders of magnitude down to the lowest pT region in pp collisions at the LHC can be adequately described by a single nonextensive statistical mechanical distribution that is widely used in other branches of science. This suggests indirectly the possible dominance of the hard-scattering process over essentially the whole pT region at central rapidity in high-energy pp and p (p) over bar collisions. We show here direct evidences of such a dominance of the hard-scattering process by investigating the power indices of UA1 and ATLAS jet spectra over an extended pT region and the two-particle correlation data of the STAR and PHENIX collaborations in high-energy pp and p (p) over bar collisions at central rapidity. We then study how the showering of the hard-scattering product partons alters the power index of the hadron spectra and leads to a hadron distribution that may be cast into a single-particle nonextensive statistical mechanical distribution. Because of such a connection, the nonextensive statistical mechanical distribution may be considered as a lowest-order approximation of the hard-scattering of partons followed by the subsequent process of parton showering that turns the jets into hadrons, in high-energy pp and p (p) over bar collisions.
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页数:16
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共 137 条
[1]   Properties of jets measured from tracks in proton-proton collisions at center-of-mass energy √s=7 TeV with the ATLAS detector [J].
Aad, G. ;
Abbott, B. ;
Abdallah, J. ;
Abdelalim, A. A. ;
Abdesselam, A. ;
Abdinov, O. ;
Abi, B. ;
Abolins, M. ;
Abramowicz, H. ;
Abreu, H. ;
Acerbi, E. ;
Acharya, B. S. ;
Adams, D. L. ;
Addy, T. N. ;
Adelman, J. ;
Aderholz, M. ;
Adomeit, S. ;
Adragna, P. ;
Adye, T. ;
Aefsky, S. ;
Aguilar-Saavedra, J. A. ;
Aharrouche, M. ;
Ahlen, S. P. ;
Ahles, F. ;
Ahmad, A. ;
Ahsan, M. ;
Aielli, G. ;
Akdogan, T. ;
Akesson, T. P. A. ;
Akimoto, G. ;
Akimov, A. V. ;
Akiyama, A. ;
Alam, M. S. ;
Alam, M. A. ;
Albert, J. ;
Albrand, S. ;
Aleksa, M. ;
Aleksandrov, I. N. ;
Alessandria, F. ;
Alexa, C. ;
Alexander, G. ;
Alexandre, G. ;
Alexopoulos, T. ;
Alhroob, M. ;
Aliev, M. ;
Alimonti, G. ;
Alison, J. ;
Aliyev, M. ;
Allport, P. P. ;
Allwood-Spiers, S. E. .
PHYSICAL REVIEW D, 2011, 84 (05)
[2]   Charged-particle multiplicities in pp interactions measured with the ATLAS detector at the LHC [J].
Aad, G. ;
Abbott, B. ;
Abdallah, J. ;
Abdelalim, A. A. ;
Abdesselam, A. ;
Abdinov, O. ;
Abi, B. ;
Abolins, M. ;
Abramowicz, H. ;
Abreu, H. ;
Acerbi, E. ;
Acharya, B. S. ;
Ackers, M. ;
Adams, D. L. ;
Addy, T. N. ;
Adelman, J. ;
Aderholz, M. ;
Adomeit, S. ;
Adragna, P. ;
Adye, T. ;
Aefsky, S. ;
Aguilar-Saavedra, J. A. ;
Aharrouche, M. ;
Ahlen, S. P. ;
Ahles, F. ;
Ahmad, A. ;
Ahsan, M. ;
Aielli, G. ;
Akdogan, T. ;
Akesson, T. P. A. ;
Akimoto, G. ;
Akimov, A. V. ;
Alam, M. S. ;
Alam, M. A. ;
Albrand, S. ;
Aleksa, M. ;
Aleksandrov, I. N. ;
Aleppo, M. ;
Alessandria, F. ;
Alexa, C. ;
Alexander, G. ;
Alexandre, G. ;
Alexopoulos, T. ;
Alhroob, M. ;
Aliev, M. ;
Alimonti, G. ;
Alison, J. ;
Aliyev, M. ;
Allport, P. P. ;
Allwood-Spiers, S. E. .
NEW JOURNAL OF PHYSICS, 2011, 13
[3]   Transverse momentum spectra of charged particles in proton-proton collisions at √s=900 GeV with ALICE at the LHC [J].
Aamodt, K. ;
Abel, N. ;
Abeysekara, U. ;
Abrahantes Quintana, A. ;
Abramyan, A. ;
Adamova, D. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agocs, A. G. ;
Aguilar Salazar, S. ;
Ahammed, Z. ;
Ahmad, A. ;
Ahmad, N. ;
Ahn, S. U. ;
Akimoto, R. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Alfaro Molina, R. ;
Alici, A. ;
Almaraz Avina, E. ;
Alme, J. ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Andrei, C. ;
Andronic, A. ;
Anelli, G. ;
Angelov, V. ;
Anson, C. ;
Anticic, T. ;
Antinori, F. ;
Antinori, S. ;
Antipin, K. ;
Antonczyk, D. ;
Antonioli, P. ;
Anzo, A. ;
Aphecetche, L. ;
Appelshaeuser, H. ;
Arcelli, S. ;
Arceo, R. ;
Arend, A. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Asryan, A. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. .
PHYSICS LETTERS B, 2010, 693 (02) :53-68
[4]   High-pT jets in p(p)over-bar collisions at √s=630 and 1800 GeV -: art. no. 032003 [J].
Abbott, B ;
Abdesselam, A ;
Abolins, M ;
Abramov, V ;
Acharya, BS ;
Adams, DL ;
Adams, M ;
Alves, GA ;
Amos, N ;
Anderson, EW ;
Astur, R ;
Baarmand, MM ;
Babintsev, VV ;
Babukhadia, L ;
Bacon, TC ;
Baden, A ;
Baldin, B ;
Balm, PW ;
Banerjee, S ;
Barberis, E ;
Baringer, P ;
Bartlett, JF ;
Bassler, U ;
Bauer, D ;
Bean, A ;
Begel, M ;
Belyaev, A ;
Beri, SB ;
Bernardi, G ;
Bertram, I ;
Besson, A ;
Beuselinck, R ;
Bezzubov, VA ;
Bhat, PC ;
Bhatnagar, V ;
Bhattacharjee, M ;
Blazey, G ;
Blessing, S ;
Boehnlein, A ;
Bojko, NI ;
Borcherding, F ;
Brandt, A ;
Breedon, R ;
Briskin, G ;
Brock, R ;
Brooijmans, G ;
Bross, A ;
Buchholz, D ;
Buehler, M ;
Buescher, V .
PHYSICAL REVIEW D, 2001, 64 (03)
[5]   Energy dependence of the transverse momentum distributions of charged particles in pp collisions measured by ALICE [J].
Abelev, B. ;
Adam, J. ;
Adamova, D. ;
Adare, A. M. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agnello, M. ;
Agocs, A. G. ;
Agostinelli, A. ;
Ahammed, Z. ;
Masoodi, A. Ahmad ;
Ahmed, I. ;
Ahn, S. A. ;
Ahn, S. U. ;
Aimo, I. ;
Aiola, S. ;
Ajaz, M. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Alexandre, D. ;
Alici, A. ;
Alkin, A. ;
Alme, J. ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Altsybeev, I. ;
Prado, C. Alves Garcia ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anielski, J. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshauser, H. ;
Arbor, N. ;
Arcelli, S. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Arslandok, M. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. ;
Aysto, J. ;
Azmi, M. D. .
EUROPEAN PHYSICAL JOURNAL C, 2013, 73 (12) :1-12
[6]   Measurement of the inclusive differential jet cross section in pp collisions at √s=2.76 TeV [J].
Abelev, B. ;
Adam, J. ;
Adamova, D. ;
Adare, A. M. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agnello, M. ;
Agocs, A. G. ;
Agostinelli, A. ;
Ahammed, Z. ;
Ahmad, N. ;
Masoodi, A. Ahmad ;
Ahn, S. A. ;
Ahn, S. U. ;
Ajaz, M. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Molina, R. Alfaro ;
Alici, A. ;
Alkin, A. ;
Almaraz Avina, E. ;
Alme, J. ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Altsybeev, I. ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anielski, J. ;
Anson, C. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshaeuser, H. ;
Arbor, N. ;
Arcelli, S. ;
Arend, A. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Arslandok, M. ;
Asryan, A. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. ;
Aysto, J. .
PHYSICS LETTERS B, 2013, 722 (4-5) :262-272
[7]   Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at √sNN=2.76 TeV [J].
Abelev, B. ;
Adam, J. ;
Adamova, D. ;
Adare, A. M. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agocs, A. G. ;
Agostinelli, A. ;
Aguilar Salazar, S. ;
Ahammed, Z. ;
Ahmad, N. ;
Masoodi, A. Ahmad ;
Ahn, S. A. ;
Ahn, S. U. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Molina, R. Alfaro ;
Alici, A. ;
Alkin, A. ;
Almaraz Avina, E. ;
Alme, J. ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Altsybeev, I. ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anielski, J. ;
Anson, C. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshaeuser, H. ;
Arbor, N. ;
Arcelli, S. ;
Arend, A. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Arslandok, M. ;
Asryan, A. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. ;
Aysto, J. ;
Azmi, M. D. .
PHYSICS LETTERS B, 2013, 720 (1-3) :52-62
[8]   Minijet transverse spectrum in high-energy hadron-nucleus collisions [J].
Accardi, A ;
Treleani, D .
PHYSICAL REVIEW D, 2001, 64 (11)
[9]   Minijet deformation and charge-independent angular correlations on momentum subspace (η, φ) in Au-Au collisions at √SNN=130 GeV [J].
Adams, J. ;
Aggarwal, M. M. ;
Ahammed, Z. ;
Amonett, J. ;
Anderson, B. D. ;
Anderson, M. ;
Arkhipkin, D. ;
Averichev, G. S. ;
Bai, Y. ;
Balewski, J. ;
Barannikova, O. ;
Barnby, L. S. ;
Baudot, J. ;
Bekele, S. ;
Belaga, V. V. ;
Bellingeri-Laurikainen, A. ;
Bellwied, R. ;
Bezverkhny, B. I. ;
Bharadwaj, S. ;
Bhasin, A. ;
Bhati, A. K. ;
Bichsel, H. ;
Bielcik, J. ;
Bielcikova, J. ;
Bland, L. C. ;
Blyth, C. O. ;
Blyth, S. -L. ;
Bonner, B. E. ;
Botje, M. ;
Bouchet, J. ;
Brandin, A. V. ;
Bravar, A. ;
Bystersky, M. ;
Cadman, R. V. ;
Cai, X. Z. ;
Caines, H. ;
Sanchez, M. Calderon de la Barca ;
Castillo, J. ;
Catu, O. ;
Cebra, D. ;
Chajecki, Z. ;
Chaloupka, P. ;
Chattopadhyay, S. ;
Chen, H. F. ;
Chen, J. H. ;
Chen, Y. ;
Cheng, J. ;
Cherney, M. ;
Chikanian, A. ;
Choi, H. A. .
PHYSICAL REVIEW C, 2006, 73 (06)
[10]   Multiplicity dependence of inclusive pt spectra from p-p collisions at √s=200 GeV [J].
Adams, J. ;
Aggarwal, M. M. ;
Ahammed, Z. ;
Amonett, J. ;
Anderson, B. D. ;
Anderson, M. ;
Arkhipkin, D. ;
Averichev, G. S. ;
Bai, Y. ;
Balewski, J. ;
Barannikova, O. ;
Barnby, L. S. ;
Baudot, J. ;
Bekele, S. ;
Belaga, V. V. ;
Bellingeri-Laurikainen, A. ;
Bellwied, R. ;
Benedosso, F. ;
Bezverkhny, B. I. ;
Bhardwaj, S. ;
Bhasin, A. ;
Bhati, A. K. ;
Bichsel, H. ;
Bielcik, J. ;
Bielcikova, J. ;
Bland, L. C. ;
Blyth, C. O. ;
Blyth, S-L. ;
Bonner, B. E. ;
Botje, M. ;
Bouchet, J. ;
Brandin, A. V. ;
Bravar, A. ;
Bystersky, M. ;
Cadman, R. V. ;
Cai, X. Z. ;
Caines, H. ;
de la Barca Sanchez, M. Calderon ;
Castillo, J. ;
Catu, O. ;
Cebra, D. ;
Chajecki, Z. ;
Chaloupka, P. ;
Chattopadhyay, S. ;
Chen, H. F. ;
Chen, J. H. ;
Chen, Y. ;
Cheng, J. ;
Cherney, M. ;
Chikanian, A. .
PHYSICAL REVIEW D, 2006, 74 (03)