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The production of 𝐾*(892)± meson resonance is measured at midrapidity (|𝑦|<0.5) in Pb−Pb collisions at √𝑠𝑁𝑁=5.02 TeV using the ALICE detector at the CERN Large Hadron Collider. The resonance is reconstructed via its hadronic decay channel 𝐾*(892)±→𝐾0
S𝜋±. The transverse momentum distributions are obtained for various centrality intervals in the 𝑝T range of 0.4−16 GeV/𝑐. Measurements of integrated yields, mean transverse momenta, and particle yield ratios are reported and found to be consistent with previous ALICE measurements for 𝐾*(892)0 within uncertainties. The 𝑝T-integrated yield ratio 2𝐾*(892)±/(𝐾++𝐾−) in central Pb−Pb collisions shows a significant suppression at a level of 9.3𝜎 relative to 𝑝𝑝 collisions. Thermal model calculations result in an overprediction of the particle yield ratio. Although both hadron resonance gas in partial chemical equilibrium (HRG-PCE) and music + smash simulations consider the hadronic phase, only HRG-PCE accurately represents the measurements, whereas music + smash simulations tend to overpredict the particle yield ratio. These observations, along with the kinetic freeze-out temperatures extracted from the yields measured for light-flavored hadrons using the HRG-PCE model, indicate a finite hadronic phase lifetime, which decreases with increasing collision centrality percentile. The 𝑝T-differential yield ratios 2𝐾*(892)±/(𝐾++𝐾−) and 2𝐾*(892)±/(𝜋++𝜋−) are presented and compared with measurements in pp collisions at √𝑠=5.02 TeV. Both particle ratios are found to be suppressed by up to a factor of five at 𝑝T<2.0 GeV/𝑐 in central Pb−Pb collisions and are qualitatively consistent with expectations for rescattering effects in the hadronic phase. The nuclear modification factor (𝑅AA) shows a smooth evolution with centrality and is found to be below unity at 𝑝T>8 GeV/𝑐, consistent with measurements for other light-flavored hadrons. The smallest values are observed in most central collisions, indicating larger energy loss of partons traversing the dense medium.
K∗(892)± resonance production in Pb-Pb collisions at √s NN = 5.02 TeV / Acharya, S., Adamová, D., 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., Alici, A., Alizadehvandchali, N., Alkin, A., Alme, J., et al.. - In: PHYSICAL REVIEW C. - ISSN 2469-9985. - STAMPA. - 109:4(2024), pp. 1-18. [10.1103/physrevc.109.044902]
K∗(892)± resonance production in Pb-Pb collisions at √s NN = 5.02 TeV
Acharya, S.;Adamová, D.;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.;Alici, A.;Alizadehvandchali, N.;Alkin, A.;Alme, J.;Alocco, G.;Alt, T.;Altamura, A. R.;Altsybeev, I.;Alvarado, J. R.;Anaam, M. N.;Andrei, C.;Andreou, N.;Andronic, A.;Anguelov, V.;Antinori, F.;Antonioli, P.;Apadula, N.;Aphecetche, L.;Appelshäuser, H.;Arata, C.;Arcelli, S.;Aresti, M.;Arnaldi, R.;Arneiro, J. G. M. C. A.;Arsene, I. C.;Arslandok, M.;Augustinus, A.;Averbeck, R.;Azmi, M. D.;Baba, H.;Badalà, A.;Bae, J.;Baek, Y. W.;Bai, X.;Bailhache, R.;Bailung, Y.;Balbino, A.;Baldisseri, A.;Balis, B.;Banerjee, D.;Banoo, Z.;Barbera, R.;Barile, F.;Barioglio, L.;Barlou, M.;Barman, B.;Barnaföldi, G. G.;Barnby, L. S.;Barret, V.;Barreto, L.;Bartels, C.;Barth, K.;Bartsch, E.;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.;Bellini, F.;Bellwied, R.;Belokurova, S.;Beltran, Y. A. V.;Bencedi, G.;Beole, S.;Berdnikov, Y.;Berdnikova, A.;Bergmann, L.;Besoiu, M. G.;Betev, L.;Bhaduri, P. P.;Bhasin, A.;Bhat, M. A.;Bhattacharjee, B.;Bianchi, L.;Bianchi, N.;Bielčík, J.;Bielčíková, J.;Biernat, J.;Bigot, A. P.;Bilandzic, A.;Biro, G.;Biswas, S.;Bize, N.;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.;Bombara, M.;Bond, P. M.;Bonomi, G.;Borel, H.;Borissov, A.;Borquez Carcamo, A. G.;Bossi, H.;Botta, E.;Bouziani, Y. E. M.;Bratrud, L.;Braun-Munzinger, P.;Bregant, M.;Broz, M.;Bruno, G. E.;Buckland, M. D.;Budnikov, D.;Buesching, H.;Bufalino, S.;Buhler, P.;Burmasov, N.;Buthelezi, Z.;Bylinkin, A.;Bysiak, S. A.;Cai, M.;Caines, H.;Caliva, A.;Calvo Villar, E.;Camacho, J. M. M.;Camerini, P.;Canedo, F. D. M.;Cantway, S. L.;Carabas, M.;Carballo, A. A.;Carnesecchi, F.;Caron, R.;Carvalho, L. A. D.;Castillo Castellanos, J.;Catalano, F.;Ceballos Sanchez, C.;Chakaberia, I.;Chakraborty, P.;Chandra, S.;Chapeland, S.;Chartier, M.;Chattopadhyay, S.;Chattopadhyay, S.;Cheng, T.;Cheshkov, C.;Cheynis, B.;Chibante Barroso, V.;Chinellato, D. D.;Chizzali, E. S.;Cho, J.;Cho, S.;Chochula, P.;Choudhury, D.;Christakoglou, P.;Christensen, C. H.;Christiansen, P.;Chujo, T.;Ciacco, M.;Cicalo, C.;Cindolo, F.;Ciupek, M. R.;Clai, G.;Colamaria, F.;Colburn, J. S.;Colella, D.;Colocci, M.;Concas, M.;Conesa Balbastre, G.;Conesa del Valle, Z.;Contin, G.;Contreras, J. G.;Coquet, M. L.;Cortese, P.;Cosentino, M. R.;Costa, F.;Costanza, S.;Cot, C.;Crkovská, J.;Crochet, P.;Cruz-Torres, R.;Cui, P.;Dainese, A.;Danisch, M. C.;Danu, A.;Das, P.;Das, P.;Das, S.;Dash, A. R.;Dash, S.;De Caro, A.;de Cataldo, G.;de Cuveland, J.;De Falco, A.;De Gruttola, D.;De Marco, N.;De Martin, C.;De Pasquale, S.;Deb, R.;Del Grande, R.;Dello Stritto, L.;Deng, W.;Dhankher, P.;Di Bari, D.;Di Mauro, A.;Diab, B.;Diaz, R. A.;Dietel, T.;Ding, Y.;Ditzel, J.;Divià, R.;Dixit, D. U.;Djuvsland, Ø.;Dmitrieva, U.;Dobrin, A.;Dönigus, B.;Dubinski, J. M.;Dubla, A.;Dudi, S.;Dupieux, P.;Durkac, M.;Dzalaiova, N.;Eder, T. M.;Ehlers, R. J.;Eisenhut, F.;Ejima, R.;Elia, D.;Erazmus, B.;Ercolessi, F.;Espagnon, B.;Eulisse, G.;Evans, D.;Evdokimov, S.;Fabbietti, L.;Faggin, M.;Faivre, J.;Fan, F.;Fan, W.;Fantoni, A.;Fasel, M.;Fecchio, P.;Feliciello, A.;Feofilov, G.;Fernández Téllez, A.;Ferrandi, L.;Ferrer, M. B.;Ferrero, A.;Ferrero, C.;Ferretti, A.;Feuillard, V. J. G.;Filova, V.;Finogeev, D.;Fionda, F. M.;Flor, F.;Flores, A. N.;Foertsch, S.;Fokin, I.;Fokin, S.;Fragiacomo, E.;Frajna, E.;Fuchs, U.;Funicello, N.;Furget, C.;Furs, A.;Fusayasu, T.;Gaardhøje, J. J.;Gagliardi, M.;Gago, A. 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F.;Heybeck, B.;Hillemanns, H.;Hippolyte, B.;Hoffmann, F. W.;Hofman, B.;Hong, G. H.;Horst, M.;Horzyk, A.;Hou, Y.;Hristov, P.;Hughes, C.;Huhn, P.;Huhta, L. M.;Humanic, T. J.;Hutson, A.;Hutter, D.;Ilkaev, R.;Ilyas, H.;Inaba, M.;Innocenti, G. M.;Ippolitov, M.;Isakov, A.;Isidori, T.;Islam, M. S.;Ivanov, M.;Ivanov, M.;Ivanov, V.;Iversen, K. E.;Jablonski, M.;Jacak, B.;Jacazio, N.;Jacobs, P. M.;Jadlovska, S.;Jadlovsky, J.;Jaelani, S.;Jahnke, C.;Jakubowska, M. J.;Janik, M. A.;Janson, T.;Ji, S.;Jia, S.;Jimenez, A. A. P.;Jonas, F.;Jones, D. M.;Jowett, J. M.;Jung, J.;Jung, M.;Junique, A.;Jusko, A.;Kabus, M. J.;Kaewjai, J.;Kalinak, P.;Kalteyer, A. S.;Kalweit, A.;Kaplin, V.;Karasu Uysal, A.;Karatovic, D.;Karavichev, O.;Karavicheva, T.;Karczmarczyk, P.;Karpechev, E.;Kebschull, U.;Keidel, R.;Keijdener, D. L. D.;Keil, M.;Ketzer, B.;Khade, S. S.;Khan, A. M.;Khan, S.;Khanzadeev, A.;Kharlov, Y.;Khatun, A.;Khuntia, A.;Kileng, B.;Kim, B.;Kim, C.;Kim, D. J.;Kim, E. J.;Kim, J.;Kim, J. 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D.;Lévai, P.;Li, X.;Lien, J.;Lietava, R.;Likmeta, I.;Lim, B.;Lim, S. H.;Lindenstruth, V.;Lindner, A.;Lippmann, C.;Liu, D. H.;Liu, J.;Liveraro, G. S. S.;Lofnes, I. M.;Loizides, C.;Lokos, S.;Lömker, J.;Loncar, P.;Lopez, X.;López Torres, E.;Lu, P.;Lugo, F. V.;Luhder, J. R.;Lunardon, M.;Luparello, G.;Ma, Y. G.;Mager, M.;Maire, A.;Majerz, E. M.;Makariev, M. V.;Malaev, M.;Malfattore, G.;Malik, N. M.;Malik, Q. W.;Malik, S. K.;Malinina, L.;Mallick, D.;Mallick, N.;Mandaglio, G.;Mandal, S. K.;Manko, V.;Manso, F.;Manzari, V.;Mao, Y.;Marcjan, R. W.;Margagliotti, G. V.;Margotti, A.;Marín, A.;Markert, C.;Martinengo, P.;Martínez, M. I.;Martínez García, G.;Martins, M. P. P.;Masciocchi, S.;Masera, M.;Masoni, A.;Massacrier, L.;Massen, O.;Mastroserio, A.;Matonoha, O.;Mattiazzo, S.;Matyja, A.;Mayer, C.;Mazuecos, A. L.;Mazzaschi, F.;Mazzilli, M.;Mdhluli, J. E.;Melikyan, Y.;Menchaca-Rocha, A.;Mendez, J. E. M.;Meninno, E.;Menon, A. S.;Meres, M.;Mhlanga, S.;Miake, Y.;Micheletti, L.;Mihaylov, D. 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V.;Rodríguez Cahuantzi, M.;Rodríguez Ramírez, S. A.;Røed, K.;Rogalev, R.;Rogochaya, E.;Rogoschinski, T. S.;Rohr, D.;Röhrich, D.;Rojas, P. F.;Rojas Torres, S.;Rokita, P. S.;Romanenko, G.;Ronchetti, F.;Rosano, A.;Rosas, E. D.;Roslon, K.;Rossi, A.;Roy, A.;Roy, S.;Rubini, N.;Ruggiano, D.;Rui, R.;Russek, P. G.;Russo, R.;Rustamov, A.;Ryabinkin, E.;Ryabov, Y.;Rybicki, A.;Rytkonen, H.;Ryu, J.;Rzesa, W.;Saarimaki, O. A. M.;Sadhu, S.;Sadovsky, S.;Saetre, J.;Šafařík, K.;Saha, P.;Saha, S. K.;Saha, S.;Sahoo, B.;Sahoo, B.;Sahoo, R.;Sahoo, S.;Sahu, D.;Sahu, P. K.;Saini, J.;Sajdakova, K.;Sakai, S.;Salvan, M. P.;Sambyal, S.;Samitz, D.;Sanna, I.;Saramela, T. B.;Sarma, P.;Sarritzu, V.;Sarti, V. M.;Sas, M. H. P.;Sawan, S.;Schambach, J.;Scheid, H. S.;Schiaua, C.;Schicker, R.;Schmah, A.;Schmidt, C.;Schmidt, H. R.;Schmidt, M. O.;Schmidt, M.;Schmidt, N. V.;Schmier, A. R.;Schotter, R.;Schröter, A.;Schukraft, J.;Schweda, K.;Scioli, G.;Scomparin, E.;Seger, J. E.;Sekiguchi, Y.;Sekihata, D.;Selina, M.;Selyuzhenkov, I.;Senyukov, S.;Seo, J. J.;Serebryakov, D.;Šerkšnytė, L.;Sevcenco, A.;Shaba, T. J.;Shabetai, A.;Shahoyan, R.;Shangaraev, A.;Sharma, A.;Sharma, B.;Sharma, D.;Sharma, H.;Sharma, M.;Sharma, S.;Sharma, S.;Sharma, U.;Shatat, A.;Sheibani, O.;Shigaki, K.;Shimomura, M.;Shin, J.;Shirinkin, S.;Shou, Q.;Sibiriak, Y.;Siddhanta, S.;Siemiarczuk, T.;Silva, T. F.;Silvermyr, D.;Simantathammakul, T.;Simeonov, R.;Singh, B.;Singh, B.;Singh, K.;Singh, R.;Singh, R.;Singh, R.;Singh, S.;Singh, V. K.;Singhal, V.;Sinha, T.;Sitar, B.;Sitta, M.;Skaali, T. B.;Skorodumovs, G.;Slupecki, M.;Smirnov, N.;Snellings, R. J. M.;Solheim, E. H.;Song, J.;Sonnabend, C.;Soramel, F.;Soto-hernandez, A. B.;Spijkers, R.;Sputowska, I.;Staa, J.;Stachel, J.;Stan, I.;Steffanic, P. J.;Stiefelmaier, S. F.;Stocco, D.;Storehaug, I.;Stratmann, P.;Strazzi, S.;Sturniolo, A.;Stylianidis, C. P.;Suaide, A. A. 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G.;Vande Vyvre, P.;Varga, D.;Varga, Z.;Vasileiou, M.;Vasiliev, A.;Vázquez Doce, O.;Vazquez Rueda, O.;Vechernin, V.;Vercellin, E.;Vergara Limón, S.;Verma, R.;Vermunt, L.;Vértesi, R.;Verweij, M.;Vickovic, L.;Vilakazi, Z.;Villalobos Baillie, O.;Villani, A.;Vinogradov, A.;Virgili, T.;Virta, M. M. O.;Vislavicius, V.;Vodopyanov, A.;Volkel, B.;Völkl, M. A.;Voloshin, K.;Voloshin, S. A.;Volpe, G.;von Haller, B.;Vorobyev, I.;Vozniuk, N.;Vrláková, J.;Wan, J.;Wang, C.;Wang, D.;Wang, Y.;Wang, Y.;Wegrzynek, A.;Weiglhofer, F. T.;Wenzel, S. C.;Wessels, J. P.;Wiechula, J.;Wikne, J.;Wilk, G.;Wilkinson, J.;Willems, G. A.;Windelband, B.;Winn, M.;Wright, J. R.;Wu, W.;Wu, Y.;Xu, R.;Yadav, A.;Yadav, A. K.;Yalcin, S.;Yamaguchi, Y.;Yang, S.;Yano, S.;Yin, Z.;Yoo, I. -K.;Yoon, J. H.;Yu, H.;Yuan, S.;Yuncu, A.;Zaccolo, V.;Zampolli, C.;Zanone, F.;Zardoshti, N.;Zarochentsev, A.;Závada, P.;Zaviyalov, N.;Zhalov, M.;Zhang, B.;Zhang, C.;Zhang, L.;Zhang, S.;Zhang, X.;Zhang, Y.;Zhang, Z.;Zhao, M.;Zherebchevskii, V.;Zhi, Y.;Zhou, D.;Zhou, Y.;Zhu, J.;Zhu, Y.;Zugravel, S. C.;Zurlo, N.;null, null
2024
Abstract
The production of 𝐾*(892)± meson resonance is measured at midrapidity (|𝑦|<0.5) in Pb−Pb collisions at √𝑠𝑁𝑁=5.02 TeV using the ALICE detector at the CERN Large Hadron Collider. The resonance is reconstructed via its hadronic decay channel 𝐾*(892)±→𝐾0
S𝜋±. The transverse momentum distributions are obtained for various centrality intervals in the 𝑝T range of 0.4−16 GeV/𝑐. Measurements of integrated yields, mean transverse momenta, and particle yield ratios are reported and found to be consistent with previous ALICE measurements for 𝐾*(892)0 within uncertainties. The 𝑝T-integrated yield ratio 2𝐾*(892)±/(𝐾++𝐾−) in central Pb−Pb collisions shows a significant suppression at a level of 9.3𝜎 relative to 𝑝𝑝 collisions. Thermal model calculations result in an overprediction of the particle yield ratio. Although both hadron resonance gas in partial chemical equilibrium (HRG-PCE) and music + smash simulations consider the hadronic phase, only HRG-PCE accurately represents the measurements, whereas music + smash simulations tend to overpredict the particle yield ratio. These observations, along with the kinetic freeze-out temperatures extracted from the yields measured for light-flavored hadrons using the HRG-PCE model, indicate a finite hadronic phase lifetime, which decreases with increasing collision centrality percentile. The 𝑝T-differential yield ratios 2𝐾*(892)±/(𝐾++𝐾−) and 2𝐾*(892)±/(𝜋++𝜋−) are presented and compared with measurements in pp collisions at √𝑠=5.02 TeV. Both particle ratios are found to be suppressed by up to a factor of five at 𝑝T<2.0 GeV/𝑐 in central Pb−Pb collisions and are qualitatively consistent with expectations for rescattering effects in the hadronic phase. The nuclear modification factor (𝑅AA) shows a smooth evolution with centrality and is found to be below unity at 𝑝T>8 GeV/𝑐, consistent with measurements for other light-flavored hadrons. The smallest values are observed in most central collisions, indicating larger energy loss of partons traversing the dense medium.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2990278
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