Transverse momentum distributions in proton-proton collisions at LHC energies and Tsallis thermodynamics

被引：80
作者：
Azmi, M. D. [1 ]
Cleymans, J. [2 ,3 ]
机构：
[1] Aligarh Muslim Univ, Dept Phys, HEP Lab, Aligarh 202002, Uttar Pradesh, India
[2] Univ Cape Town, UCT CERN Res Ctr, ZA-7701 Rondebosch, South Africa
[3] Univ Cape Town, Dept Phys, ZA-7701 Rondebosch, South Africa
来源：
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2014年 / 41卷 / 06期
关键词：
transverse; momentum; proton-proton; Tsallis; thermodynamics; ENTROPY; SPECTRA;
D O I：
10.1088/0954-3899/41/6/065001
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
A detailed study of the transverse momentum distributions of charged particles produced in p-p collisions at large hadron collider energies is presented. This is done using a thermodynamically consistent form of the Tsallis distribution. All variables used are thermodynamical and in particular, the temperature, T, follows from the standard thermodynamic definition as being the derivative of the energy with respect to the (Tsallis) entropy. The momentum distribution of the final state particles can be described very well by the Tsallis distribution. The values of the parameters are determined from measurements by the ALICE, ATLAS and CMS collaborations and are discussed in detail. In particular, the Tsallis parameter, q, is found with consistent values for all the transverse momentum distributions despite large differences in kinematic regions and shows a slight increase with beam energy, reaching a value of 1.15 at 7 TeV. It is concluded that the hadronic system created in high-energy p-p collisions at mid-rapidity is consistent with Tsallis thermodynamics.
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页数：10
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共 25 条
  • [1] Charged-particle multiplicities in pp interactions measured with the ATLAS detector at the LHC
    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.
    [J]. NEW JOURNAL OF PHYSICS, 2011, 13
  • [2] Transverse momentum spectra of charged particles in proton-proton collisions at √s=900 GeV with ALICE at the LHC
    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.
    [J]. PHYSICS LETTERS B, 2010, 693 (02) : 53 - 68
  • [3] Energy dependence of the transverse momentum distributions of charged particles in pp collisions measured by ALICE
    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.
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2013, 73 (12): : 1 - 12
  • [4] Strange particle production in p+p collisions at √s=200 GeV
    Abelev, B. I.
    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.
    Bhardwaj, S.
    Bhasin, A.
    Bhati, A. K.
    Bichsel, H.
    Bielcik, J.
    Bielcikova, J.
    Bland, L. C.
    Blyth, S.-L.
    Bonner, B. E.
    Botje, M.
    Bouchet, J.
    Brandin, A. V.
    Bravar, A.
    Burton, T. P.
    Bystersky, M.
    Cadman, R. V.
    Cai, X. Z.
    Caines, H.
    Calderon de la Barca Sanchez, M.
    Castillo, J.
    Catu, O.
    Cebra, D.
    Chajecki, Z.
    Chaloupka, P.
    Chattopadhyay, S.
    Chen, H. F.
    Chen, J. H.
    Cheng, J.
    Cherney, M.
    Chikanian, A.
    Christie, W.
    [J]. PHYSICAL REVIEW C, 2007, 75 (06):
  • [5] Identified charged hadron production in p plus p collisions at √s=200 and 62.4 GeV
    Adare, A.
    Afanasiev, S.
    Aidala, C.
    Ajitanand, N. N.
    Akiba, Y.
    Al-Bataineh, H.
    Alexander, J.
    Aoki, K.
    Aphecetche, L.
    Armendariz, R.
    Aronson, S. H.
    Asai, J.
    Atomssa, E. T.
    Averbeck, R.
    Awes, T. C.
    Azmoun, B.
    Babintsev, V.
    Bai, M.
    Baksay, G.
    Baksay, L.
    Baldisseri, A.
    Barish, K. N.
    Barnes, P. D.
    Bassalleck, B.
    Basye, A. T.
    Bathe, S.
    Batsouli, S.
    Baublis, V.
    Baumann, C.
    Bazilevsky, A.
    Belikov, S.
    Bennett, R.
    Berdnikov, A.
    Berdnikov, Y.
    Bickley, A. A.
    Boissevain, J. G.
    Borel, H.
    Boyle, K.
    Brooks, M. L.
    Buesching, H.
    Bumazhnov, V.
    Bunce, G.
    Butsyk, S.
    Camacho, C. M.
    Campbell, S.
    Chang, B. S.
    Chang, W. C.
    Charvet, J. -L.
    Chernichenko, S.
    Chiba, J.
    [J]. PHYSICAL REVIEW C, 2011, 83 (06):
  • [6] Measurement of neutral mesons in p plus p collisions at √s=200 GeV and scaling properties of hadron production
    Adare, A.
    Afanasiev, S.
    Aidala, C.
    Ajitanand, N. N.
    Akiba, Y.
    Al-Bataineh, H.
    Alexander, J.
    Aoki, K.
    Aphecetche, L.
    Armendariz, R.
    Aronson, S. H.
    Asai, J.
    Atomssa, E. T.
    Averbeck, R.
    Awes, T. C.
    Azmoun, B.
    Babintsev, V.
    Bai, M.
    Baksay, G.
    Baksay, L.
    Baldisseri, A.
    Barish, K. N.
    Barnes, P. D.
    Bassalleck, B.
    Basye, A. T.
    Bathe, S.
    Batsouli, S.
    Baublis, V.
    Baumann, C.
    Bazilevsky, A.
    Belikov, S.
    Bennett, R.
    Berdnikov, A.
    Berdnikov, Y.
    Bickley, A. A.
    Boissevain, J. G.
    Borel, H.
    Boyle, K.
    Brooks, M. L.
    Buesching, H.
    Bumazhnov, V.
    Bunce, G.
    Butsyk, S.
    Camacho, C. M.
    Campbell, S.
    Chang, B. S.
    Chang, W. C.
    Charvet, J. -L.
    Chernichenko, S.
    Chiba, J.
    [J]. PHYSICAL REVIEW D, 2011, 83 (05):
  • [7] Ideal gas provides q-entropy
    Biro, T. S.
    [J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2013, 392 (15) : 3132 - 3139
  • [8] Non-extensive approach to quark matter
    Biro, T. S.
    Purcsel, G.
    Uermoessy, K.
    [J]. EUROPEAN PHYSICAL JOURNAL A, 2009, 40 (03) : 325 - 340
  • [9] A FRACTAL APPROACH TO ENTROPY AND DISTRIBUTION-FUNCTIONS
    BUYUKKILIC, F
    DEMIRHAN, D
    [J]. PHYSICS LETTERS A, 1993, 181 (01) : 24 - 28
  • [10] q-generalized Bose-Einstein condensation based on Tsallis entropy
    Chen, JC
    Zhang, ZP
    Su, GZ
    Chen, LX
    Shu, YG
    [J]. PHYSICS LETTERS A, 2002, 300 (01) : 65 - 70
123