Eccentric Protons? Sensitivity of Flow to System Size and Shape in p plus p, p plus Pb, and Pb plus Pb Collisions

被引：122

作者：

Schenke, Bjoern ^{[1
]}

Venugopalan, Raju ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 10期

关键词：

ANGULAR-CORRELATIONS; LONG-RANGE; PPB; MULTIPLICITY; SIDE;

D O I：

10.1103/PhysRevLett.113.102301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We determine the transverse system size of the initial nonequilibrium Glasma state and of the hydrodynamically evolving fireball as a function of produced charged particles in p + p, p + Pb, and Pb + Pb collisions at the Large Hadron Collider. Our results show features similar to those of recent measurements of Hanbury Brown-Twiss (HBT) radii by the ALICE Collaboration. Azimuthal anisotropy coefficients v(n) generated by combining the early time Glasma dynamics with viscous fluid dynamics in Pb + Pb collisions are in excellent agreement with experimental data for a wide range of centralities. In particular, event-by-event distributions of the vn values agree with the experimental data out to fairly peripheral centrality bins. In striking contrast, our results for p + Pb collisions significantly underestimate the magnitude and do not reproduce the centrality dependence of data for v 2 and v 3 coefficients. We argue that the measured vn data and HBT radii strongly constrain the shapes of initial parton distributions across system sizes that would be compatible with a flow interpretation in p + Pb collisions. Alternately, additional sources of correlations may be required to describe the systematics of long-range rapidity correlations in p + p and p + Pb collisions.

引用

页数：5

共 42 条

[1]

Aad G, 2013, J HIGH ENERGY PHYS, DOI 10.1007/JHEP11(2013)183

[2] Observation of Associated Near-Side and Away-Side Long-Range Correlations in √SNN=5.02 TeV Proton-Lead Collisions with the ATLAS Detector [J].

Aad, G. ;

Abajyan, T. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdelalim, A. A. ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, O. S. ;

Abramowicz, H. ;

Abreu, H. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

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. ;

Allbrooke, B. M. M. ;

Allison, L. J. ;

Allport, P. P. ;

Allwood-Spiers, S. E. .

PHYSICAL REVIEW LETTERS, 2013, 110 (18)

[3] Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high 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. ;

Masoodi, A. Ahmad ;

Ahmad, N. ;

Ahn, S. U. ;

Akindinov, A. ;

Aleksandrov, D. ;

Alessandro, B. ;

Alfaro Molina, R. ;

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. ;

Anticic, T. ;

Antinori, F. ;

Antonioli, P. ;

Aphecetche, L. ;

Appelshaeuser, 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. ;

Bach, M. ;

Badala, A. ;

Baek, Y. W. ;

Bailhache, R. .

PHYSICS LETTERS B, 2013, 719 (1-3) :18-28

[4]

Abelev B.B., ARXIV14041194 ALICE

[5] Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central d plus Au Collisions at √sNN=200 GeV [J].

Adare, A. ;

Aidala, C. ;

Ajitanand, N. N. ;

Akiba, Y. ;

Al-Bataineh, H. ;

Alexander, J. ;

Angerami, A. ;

Aoki, K. ;

Apadula, N. ;

Aramaki, Y. ;

Atomssa, E. T. ;

Averbeck, R. ;

Awes, T. C. ;

Azmoun, B. ;

Babintsev, V. ;

Bai, M. ;

Baksay, G. ;

Baksay, L. ;

Barish, K. N. ;

Bassalleck, B. ;

Basye, A. T. ;

Bathe, S. ;

Baublis, V. ;

Baumann, C. ;

Bazilevsky, A. ;

Belikov, S. ;

Belmont, R. ;

Bennett, R. ;

Bhom, J. H. ;

Blau, D. S. ;

Bok, J. S. ;

Boyle, K. ;

Brooks, M. L. ;

Buesching, H. ;

Bumazhnov, V. ;

Bunce, G. ;

Butsyk, S. ;

Campbell, S. ;

Caringi, A. ;

Chen, C-H ;

Chi, C. Y. ;

Chiu, M. ;

Choi, I. J. ;

Choi, J. B. ;

Choudhury, R. K. ;

Christiansen, P. ;

Chujo, T. ;

Chung, P. ;

Chvala, O. ;

Cianciolo, V. .

PHYSICAL REVIEW LETTERS, 2013, 111 (21)

[6] Possible multiparticle ridge-like correlations in very high multiplicity proton-proton collisions [J].

Bjorken, James D. ;

Brodsky, Stanley J. ;

Goldhaber, Alfred Scharff .

PHYSICS LETTERS B, 2013, 726 (1-3) :344-346

[7] Mass Hierarchy in Identified Particle Distributions in Proton-Lead Collisions [J].

Bozek, Piotr ;

Broniowski, Wojciech ;

Torrieri, Giorgio .

PHYSICAL REVIEW LETTERS, 2013, 111 (17)

[8] Collective dynamics in high-energy proton-nucleus collisions [J].

Bozek, Piotr ;

Broniowski, Wojciech .

PHYSICAL REVIEW C, 2013, 88 (01)

[9] Size of the emission source and collectivity in ultra-relativistic p-Pb collisions [J].

Bozek, Piotr ;

Broniowski, Wojciech .

PHYSICS LETTERS B, 2013, 720 (1-3) :250-253

[10] Correlations from hydrodynamic flow in pPb collisions [J].

Bozek, Piotr ;

Broniowski, Wojciech .

PHYSICS LETTERS B, 2013, 718 (4-5) :1557-1561

← 1 2 3 4 5 →