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The first measurement of event-by-event antideuteron number fluctuations in high energy heavy-ion collisions is presented. The measurements are carried out at midrapidity (|η|<0.8) as a function of collision centrality in Pb-Pb collisions at √sNN 5.02 TeV using the ALICE detector. A significant negative correlation between the produced antiprotons and antideuterons is observed in all collision centralities. The results are compared with a state-of-the-art coalescence calculation. While it describes the ratio of higher order cumulants of the antideuteron multiplicity distribution, it fails to describe quantitatively the magnitude of the correlation between antiproton and antideuteron production. On the other hand, thermal-statistical model calculations describe all the measured observables within uncertainties only for correlation volumes that are different with respect to those describing proton yields and a similar measurement of net-proton number fluctuations.
Acharya, S., Adamová, D., Adler, A., Aglieri Rinella, G., Agnello, M., Agrawal, N., et al. (2023). First Measurement of Antideuteron Number Fluctuations at Energies Available at the Large Hadron Collider. PHYSICAL REVIEW LETTERS, 131(4), 1-12 [10.1103/PhysRevLett.131.041901].
First Measurement of Antideuteron Number Fluctuations at Energies Available at the Large Hadron Collider
Acharya, S;Adamová, D;Adler, A;Aglieri Rinella, G;Agnello, M;Agrawal, N;Ahammed, Z;Ahmad, S;Ahn, S U;Ahuja, I;Akindinov, A;Al-Turany, M;Aleksandrov, D;Alessandro, B;Alfanda, H M;Alfaro Molina, R;Ali, B;Ali, Y;Alici, A;Alizadehvandchali, N;Alkin, A;Alme, J;Alocco, G;Alt, T;Altsybeev, I;Anaam, M N;Andrei, C;Andronic, A;Anguelov, V;Antinori, F;Antonioli, P;Anuj, C;Apadula, N;Aphecetche, L;Appelshäuser, H;Arcelli, S;Arnaldi, R;Arsene, I C;Arslandok, M;Augustinus, A;Averbeck, R;Aziz, S;Azmi, M D;Badalà, A;Baek, Y W;Bai, X;Bailhache, R;Bailung, Y;Bala, R;Balbino, A;Baldisseri, A;Balis, B;Banerjee, D;Banoo, Z;Barbera, R;Barioglio, L;Barlou, M;Barnaföldi, G G;Barnby, L S;Barret, V;Barreto, L;Bartels, C;Barth, K;Bartsch, E;Baruffaldi, F;Bastid, N;Basu, S;Batigne, G;Battistini, D;Batyunya, B;Bauri, D;Bazo Alba, J L;Bearden, I G;Beattie, C;Becht, P;Behera, D;Belikov, I;Bell Hechavarria, A D C;Bellwied, R;Belokurova, S;Belyaev, V;Bencedi, G;Beole, S;Bercuci, A;Berdnikov, Y;Berdnikova, A;Bergmann, L;Besoiu, M G;Betev, L;Bhaduri, P P;Bhasin, A;Bhat, I R;Bhat, M A;Bhattacharjee, B;Bianchi, L;Bianchi, N;Bielčík, J;Bielčíková, J;Biernat, J;Bilandzic, A;Biro, G;Biswas, S;Blair, J T;Blau, D;Blidaru, M B;Bluhme, N;Blume, C;Boca, G;Bock, F;Bodova, T;Bogdanov, A;Boi, S;Bok, J;Boldizsár, L;Bolozdynya, A;Bombara, M;Bond, P M;Bonomi, G;Borel, H;Borissov, A;Bossi, H;Botta, E;Bratrud, L;Braun-Munzinger, P;Bregant, M;Broz, M;Bruno, G E;Buckland, M D;Budnikov, D;Buesching, H;Bufalino, S;Bugnon, O;Buhler, P;Buthelezi, Z;Butt, J B;Bylinkin, A;Bysiak, S A;Cai, M;Caines, H;Caliva, A;Calvo Villar, E;Camacho, J M M;Camacho, R S;Camerini, P;Canedo, F D M;Carabas, M;Carnesecchi, F;Caron, R;Castillo Castellanos, J;Catalano, F;Ceballos Sanchez, C;Chakaberia, I;Chakraborty, P;Chandra, S;Chapeland, S;Chartier, M;Chattopadhyay, S;Chattopadhyay, S;Chavez, T G;Cheng, T;Cheshkov, C;Cheynis, B;Chibante Barroso, V;Chinellato, D D;Chizzali, E S;Cho, S;Chochula, P;Christakoglou, P;Christensen, C H;Christiansen, P;Chujo, T;Ciacco, M;Cicalo, C;Cifarelli, L;Cindolo, F;Ciupek, M R;Clai, G;Colamaria, F;Colburn, J S;Colella, D;Collu, A;Colocci, M;Concas, M;Conesa Balbastre, G;Conesa Del Valle, Z;Contin, G;Contreras, J G;Coquet, M L;Cormier, T M;Cortese, P;Cosentino, M R;Costa, F;Costanza, S;Crochet, P;Cruz-Torres, R;Cuautle, E;Cui, P;Cunqueiro, L;Dainese, A;Danisch, M C;Danu, A;Das, P;Das, P;Das, S;Dash, S;De Caro, A;de Cataldo, G;De Cilladi, L;de Cuveland, J;De Falco, A;De Gruttola, D;De Marco, N;De Martin, C;De Pasquale, S;Deb, S;Degenhardt, H F;Deja, K R;Del Grande, R;Dello Stritto, L;Deng, W;Dhankher, P;Di Bari, D;Di Mauro, A;Diaz, R A;Dietel, T;Ding, Y;Divià, R;Dixit, D U;Djuvsland, Ø;Dmitrieva, U;Dobrin, A;Dönigus, B;Dubey, A K;Dubinski, J M;Dubla, A;Dudi, S;Dupieux, P;Durkac, M;Dzalaiova, N;Eder, T M;Ehlers, R J;Eikeland, V N;Eisenhut, F;Elia, D;Erazmus, B;Ercolessi, F;Erhardt, F;Erokhin, A;Ersdal, M R;Espagnon, B;Eulisse, G;Evans, D;Evdokimov, S;Fabbietti, L;Faggin, M;Faivre, J;Fan, F;Fan, 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E D;Lettrich, M;Lévai, P;Li, X;Li, X L;Lien, J;Lietava, R;Lim, B;Lim, S H;Lindenstruth, V;Lindner, A;Lippmann, C;Liu, A;Liu, D H;Liu, J;Lofnes, I M;Loginov, V;Loizides, C;Loncar, P;Lopez, J A;Lopez, X;López Torres, E;Lu, P;Luhder, J R;Lunardon, M;Luparello, G;Ma, Y G;Maevskaya, A;Mager, M;Mahmoud, T;Maire, A;Malaev, M;Malik, N M;Malik, Q W;Malik, S K;Malinina, L;Mal'Kevich, D;Mallick, D;Mallick, N;Mandaglio, G;Manko, V;Manso, F;Manzari, V;Mao, Y;Margagliotti, G V;Margotti, A;Marín, A;Markert, C;Marquard, M;Martin, N A;Martinengo, P;Martinez, J L;Martínez, M I;Martínez García, G;Masciocchi, S;Masera, M;Masoni, A;Massacrier, L;Mastroserio, A;Mathis, A M;Matonoha, O;Matuoka, P F T;Matyja, A;Mayer, C;Mazuecos, A L;Mazzaschi, F;Mazzilli, M;Mdhluli, J E;Mechler, A F;Melikyan, Y;Menchaca-Rocha, A;Meninno, E;Menon, A S;Meres, M;Mhlanga, S;Miake, Y;Micheletti, L;Migliorin, L C;Mihaylov, D L;Mikhaylov, K;Mishra, A N;Miśkowiec, D;Modak, A;Mohanty, A P;Mohanty, B;Mohisin Khan, M;Molander, M 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2023
Abstract
The first measurement of event-by-event antideuteron number fluctuations in high energy heavy-ion collisions is presented. The measurements are carried out at midrapidity (|η|<0.8) as a function of collision centrality in Pb-Pb collisions at √sNN 5.02 TeV using the ALICE detector. A significant negative correlation between the produced antiprotons and antideuterons is observed in all collision centralities. The results are compared with a state-of-the-art coalescence calculation. While it describes the ratio of higher order cumulants of the antideuteron multiplicity distribution, it fails to describe quantitatively the magnitude of the correlation between antiproton and antideuteron production. On the other hand, thermal-statistical model calculations describe all the measured observables within uncertainties only for correlation volumes that are different with respect to those describing proton yields and a similar measurement of net-proton number fluctuations.
Acharya, S., Adamová, D., Adler, A., Aglieri Rinella, G., Agnello, M., Agrawal, N., et al. (2023). First Measurement of Antideuteron Number Fluctuations at Energies Available at the Large Hadron Collider. PHYSICAL REVIEW LETTERS, 131(4), 1-12 [10.1103/PhysRevLett.131.041901].
Acharya, S; Adamová, D; Adler, A; Aglieri Rinella, G; Agnello, M; Agrawal, N; Ahammed, Z; Ahmad, S; Ahn, S U; Ahuja, I; Akindinov, A; Al-Turany, M; Al...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/951028
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