@article{3032449, title = "Charged-particle multiplicity fluctuations in Pb-Pb collisions at root s(NN)=2.76 TeV", author = "Acharya, S. and Adamova, D. and Adler, A. and Adolfsson, J. and Rinella, and G. Aglieri and Agnello, M. and Agrawal, N. and Ahammed, Z. and Ahmad, S. and and Ahn, S. U. and Ahuja, I and Akbar, Z. and Akindinov, A. and and Al-Turany, M. and Alam, S. N. and Aleksandrov, D. and Alessandro, B. and and Alfanda, H. M. and Alfaro Molina, R. and Ali, B. and Ali, Y. and Alici, and A. and Alizadehvandchali, N. and Alkin, A. and Alme, J. and Alt, T. and and Altenkamper, L. and Altsybeev, I and Anaam, M. N. and Andrei, C. and and Andreou, D. and Andronic, A. and Angeletti, M. and Anguelov, V and and Antinori, F. and Antonioli, P. and Anuj, C. and Apadula, N. and and Aphecetche, L. and Appelshauser, H. and Arcelli, S. and Arnaldi, R. and and Arsene, I. C. and Arslandok, M. and Augustinus, A. and Averbeck, R. and and Aziz, S. and Azmi, M. D. and Badala, A. and Baek, Y. W. and Bai, X. and and Bailhache, R. and Bailung, Y. and Bala, R. and Balbino, A. and and Baldisseri, A. and Balis, B. and Ball, M. and Banerjee, D. and Barbera, and R. and Barioglio, L. and Barlou, M. and Barnafoldi, G. G. and Barnby, L. and S. and Barret, V and Bartels, C. and Barth, K. and Bartsch, E. and and Baruffaldi, F. and Bastid, N. and Basu, S. and Batigne, G. and Batyunya, and B. and Bauri, D. and Bazo Alba, J. L. and Bearden, I. G. and Beattie, C. and and Belikov, I and Hechavarria, A. D. C. Bell and Bellini, F. and and Bellwied, R. and Belokurova, S. and Belyaev, V and Bencedi, G. and and Beole, S. and Bercuci, A. and Berdnikov, Y. and Berdnikova, A. and and Berenyi, D. and Bergmann, L. and Besoiu, M. G. and Betev, L. and and Bhaduri, P. P. and Bhasin, A. and Bhat, I. R. and Bhat, M. A. and and Bhattacharjee, B. and Bhattacharya, P. and Bianchi, L. and Bianchi, N. and and Bielcik, J. and Bielcikova, J. and Biernat, J. and Bilandzic, A. and and Biro, G. and Biswas, S. and Blair, J. T. and Blau, D. and Blidaru, M. B. and and Blume, C. and Boca, G. and Bock, F. and Bogdanov, A. and Boi, S. and and Bok, J. and Boldizsar, L. and Bolozdynya, A. and Bombara, M. and Bond, and P. M. and Bonomi, G. and Borel, H. and Borissov, A. and Bossi, H. and and Botta, E. and Bratrud, L. and Braun-Munzinger, P. and Bregant, M. and and Broz, M. and Bruno, G. E. and Buckland, M. D. and Budnikov, D. and and Buesching, H. and Bufalino, S. and Bugnon, O. and Buhler, P. and and Buthelezi, Z. and Butt, J. B. and Bysiak, S. A. and Caffarri, D. and and Cai, M. and Caines, H. and Caliva, A. and Calvo Villar, E. and M and Camacho, J. M. and Camacho, R. S. and Camerini, P. and Canedo, F. D. M. and and Carnesecchi, F. and Caron, R. and Castellanos, J. Castillo and and Casula, E. A. R. and Catalano, F. and Sanchez, C. Ceballos and and Chakraborty, P. and Chandra, S. and Chapeland, S. and Chartier, M. and and Chattopadhyay, S. and Chattopadhyay, S. and Chauvin, A. and Chavez, T. and G. and Cheshkov, C. and Cheynis, B. and Barroso, V. Chibante and and Chinellato, D. D. and Cho, S. and Chochula, P. and Christakoglou, P. and and Christensen, C. H. and Christiansen, P. and Chujo, T. and Cicalo, C. and and Cifarelli, L. and Cindolo, F. and Ciupek, M. R. and Clai, G. and and Cleymans, J. and Colamaria, F. and Colburn, J. S. and Colella, D. and and Collu, A. and Colocci, M. and Concas, M. and Balbastre, G. Conesa and and del Valle, Z. Conesa and Contin, G. and Contreras, J. G. and Coquet, M. and L. and Cormier, T. M. and Cortese, P. and Cosentino, M. R. and Costa, F. and and Costanza, S. and Crochet, P. and Cruz-Torres, R. and Cuautle, E. and and Cui, P. and Cunqueiro, L. and Dainese, A. and Damas, F. P. A. and and Danisch, M. C. and Danu, A. and Das, I and Das, P. and Das, P. and Das, and S. and Dash, S. and De, S. and De Caro, A. and de Cataldo, G. and De and Cilladi, L. and de Cuveland, J. and De Falco, A. and De Gruttola, D. and and De Marco, N. and De Martin, C. and De Pasquale, S. and Deb, S. and and Degenhardt, H. F. and Deja, K. R. and Dello Stritto, L. and Delsanto, S. and and Deng, W. and Dhankher, P. and Di Bari, D. and Di Mauro, A. and Diaz, and R. A. and Dietel, T. and Ding, Y. and Divia, R. and Dixit, D. U. and and Djuvsland, O. and Dmitrieva, U. and Do, J. and Dobrin, A. and Doenigus, and B. and Dordic, O. and Dubey, A. K. and Dubla, A. and Dudi, S. and and Dukhishyam, M. and Dupieux, P. and Dzalaiova, N. and Eder, T. M. and and Ehlers, R. J. and Eikeland, V. N. and Eisenhut, F. and Elia, D. and and Erazmus, B. and Ercolessi, F. and Erhardt, F. and Erokhin, A. and and Ersdal, M. 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H. and Yuan, S. and Yuncu, A. and Zaccolo, V and Zaman, A. and and Zampolli, C. and Zanoli, H. J. C. and Zardoshti, N. and Zarochentsev, A. and and Zavada, P. and Zaviyalov, N. and Zbroszczyk, H. and Zhalov, M. and and Zhang, S. and Zhang, X. and Zhang, Y. and Zherebchevskii, V and Zhi, Y. and and Zhou, D. and Zhou, Y. and Zhu, J. and Zhu, Y. and Zichichi, A. and and Zinovjev, G. and Zurlo, N. and ALICE Collaboration", journal = "The European Physical Journal C - Particles and Fields", year = "2021", volume = "81", number = "11", publisher = "Springer-Verlag", issn = "1434-6044, 1434-6052", doi = "10.1140/epjc/s10052-021-09784-4", abstract = "Measurements of event-by-event fluctuations of charged-particle multiplicities in Pb-Pb collisions at root s(NN) = 2.76 TeV using the ALICE detector at the CERN Large Hadron Collider (LHC) are presented in the pseudorapidity range |eta| < 0.8 and transverse momentum 0.2 < p(T) < 2.0 GeV/c. The amplitude of the fluctuations is expressed in terms of the variance normalized by the mean of themultiplicity distribution. The. and p(T) dependences of the fluctuations and their evolution with respect to collision centrality are investigated. The multiplicity fluctuations tend to decrease from peripheral to central collisions. The results are compared to those obtained from HIJING and AMPT Monte Carlo event generators as well as to experimental data at lower collision energies. Additionally, the measured multiplicity fluctuations are discussed in the context of the isothermal compressibility of the high-density strongly-interacting system formed in central Pb-Pb collisions." }