Hayrapetyan, A.Tumasyan, A.Adam, W.Andrejkovic, J. W.Bergauer, T.Chatterjee, S.Zhokin, A.2025-05-312025-05-3120250370-26931873-244510.1016/j.physletb.2025.139279https://doi.org/10.1016/j.physletb.2025.139279https://hdl.handle.net/20.500.14517/7917Melo Da Costa, Eliza/0000-0002-5016-6434; Redondo, Ignacio/0000-0003-3737-4121; Walsh, Roberval/0000-0002-3872-4114; Fernandez Menendez, Javier/0000-0002-5213-3708; Pieri, Marco/0000-0003-3303-6301; Waltenberger, Wolfgang/0000-0002-6215-7228; Titov, Maxim/0000-0002-1119-6614; Dasu, Sridhara/0000-0001-5993-9045; Benitez, J.F./0000-0002-2633-6712; Kogler, Roman/0000-0002-5336-4399; Sharma, Varun/0000-0003-1287-1471; Sanchez-Hernandez, Alberto/0000-0001-9548-0358; Wang, Dayong/0000-0002-9013-1199; Levchuk, Leonid/0000-0001-5889-7410; Janssen, Tahys/0000-0002-3998-4081; Tinoco Mendes, Andre David/0000-0001-5854-7699; Costa, Salvatore/0000-0001-9919-0569; Lethuillier, Morgan/0000-0001-6185-2045; Marzocchi, Badder/0000-0001-6687-6214; Rebello Teles, Patricia/0000-0001-9029-8506; Schroder, Matthias/0000-0001-8058-9828; Malgeri, Luca/0000-0002-0113-7389; Collard, Caroline/0000-0002-5230-8387; Grandi, Claudio/0000-0001-5998-3070; Chahal, Gurpreet Singh/0000-0003-0320-4407; Verdini, Piero Giorgio/0000-0002-0042-9507; Smith, Wesley/0000-0003-3195-0909; Kasemann, Matthias/0000-0002-0429-2448; Hinzmann, Andreas/0000-0002-2633-4696; Leonardo, Nuno/0000-0002-9746-4594; Naimuddin, Md/0000-0003-4542-386X; Gerosa, Raffaele/0000-0001-8359-3734; Kole, Gouranga/0000-0002-3285-1497; Heath, Helen/0000-0001-6576-9740; Tao, Junquan/0000-0003-2006-3490; Vilela Pereira, Antonio/0000-0003-3177-4626; Reis, Thomas/0000-0003-3703-6624; Ecklund, Karl/0000-0002-6976-4637; Yazgan, Efe/0000-0001-5732-7950; Belyaev, Alexander/0000-0002-1733-4408; Petrucciani, Giovanni/0000-0003-0889-4726; Martinez Ruiz Del Arbol, Pablo/0000-0002-7737-5121; Alcaraz Maestre, Juan/0000-0003-0914-7474; Steggemann, Jan/0000-0003-4420-5510; Parida, Bibhuti/0000-0001-9367-8061; Androsov, Konstantin/0000-0003-2694-6542; /0000-0002-1153-816X; Lipton, Ronald/0000-0002-6665-7289; Azzurri, Paolo/0000-0002-1717-5654; Mitselmakher, Guenakh/0000-0001-5745-3658; Moon, Chang-Seong/0000-0001-8229-7829; Colaleo, Anna/0000-0002-0711-6319; Fouz Iglesias, Maria Cruz/0000-0003-2950-976X; Jabeen, Shabnam/0000-0002-0155-7383; Novaes, Sergio/0000-0003-0471-8549; Attia Mahmoud, Mohammed/0000-0001-8692-5458; Kyberd, Paul/0000-0002-7353-7090; Taylor, Lucas/0000-0002-6584-2538; Pastrone, Nadia/0000-0001-7291-1979; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Gutsche, Oliver/0000-0002-8015-9622; Delgado Peris, Antonio/0000-0002-8511-7958; Vischia, Pietro/0000-0002-7088-8557; Mundim, Luiz/0000-0001-9964-7805; Meola, Sabino/0000-0002-8233-7277; Everaerts, Pieter/0000-0003-3848-324X; Ligabue, Franco/0000-0002-1549-7107; Rizzi, Andrea/0000-0002-4543-2718; Benaglia, Andrea Davide/0000-0003-1124-8450; Gomez-Ceballos, Guillelmo/0000-0003-1683-9460; Haller, Johannes/0000-0001-9347-7657; Puerta Pelayo, Jesus/0000-0001-7390-1457; Cepeda, Maria/0000-0002-6076-4083; Fernandez Bedoya, Cristina/0000-0001-8057-9152; Alverson, George/0000-0001-6651-1178; Verdier, Patrice/0000-0003-3090-2948; Wardle, Nicholas/0000-0003-1344-3356; Rabbertz, Klaus/0000-0001-7040-9846; Abbiendi, Giovanni/0000-0003-4499-7562; Chatterjee, Suman/0000-0003-2660-0349; Hahn, Kristian/0000-0001-7892-1676; Malik, Sudhir/0000-0002-6356-2655; Lucchini, Marco Toliman/0000-0002-7497-7450; Herndon, Matthew/0000-0003-3043-1090; Escalante Del Valle, Alberto/0000-0002-9702-6359; Gonzalez Lopez, Oscar/0000-0002-4532-6464; Geurts, Frank/0000-0003-2856-9090; Rappoccio, Salvatore/0000-0002-5449-2560; Singh, Jasbir/0000-0001-9029-2462; Goy Lopez, Silvia/0000-0001-6508-5090; Blekman, Freya/0000-0002-7366-7098; Dragicevic, Marko/0000-0003-1967-6783; Raidal, Martti/0000-0001-7040-9491; Dutta, Valentina/0000-0001-5958-829X; Duarte, Javier Mauricio/0000-0002-5076-7096; Manzoni, Riccardo Andrea/0000-0002-7584-5038; Wallny, Rainer/0000-0001-8038-1613; Bloom, Kenneth/0000-0002-4272-8900; Heredia De La Cruz, Ivan/0000-0002-8133-6467; Saka, Halil/0000-0001-7616-2573; Yagil, Avi/0000-0002-6108-4004; Spagnolo, Paolo/0000-0001-7962-5203; Missiroli, Marino/0000-0002-1780-1344; Rinkevicius, Aurelijus/0000-0002-7510-255X; Li, Qiang/0000-0002-8290-0517; Sznajder, Andre/0000-0001-6998-1108; Josa Mutuberria, Isabel/0000-0002-4985-6964; Botta, Cristina/0000-0002-8072-795X; Feld, Lutz/0000-0001-9813-8646; Kreczko, Luke/0000-0003-2341-8330; Konecki, Marcin/0000-0001-9482-4841; Padula, Sandra S./0000-0003-3071-0559; De Guio, Federico/0000-0001-5927-8865; Navarrete Ramos, Efren/0000-0002-5180-4020; Canelli, Florencia/0000-0001-6361-2117; Bernardes, Cesar Augusto/0000-0001-5790-9563; Soha, Aron/0000-0002-5968-1192; Landsberg, Greg/0000-0002-4184-9380; Goldstein, Joel/0000-0003-1591-6014; Fernandez Perez Tomei, Thiago Rafael/0000-0002-1809-5226; Robert, Schoefbeck/0000-0002-2332-8784; Bortignon, Pierluigi/0000-0002-5360-1454; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Evdokimov, Olga/0000-0002-1250-8931; Golf, Frank/0000-0003-3567-9351; Gershtein, Yuri/0000-0002-4871-5449; Clement, Emyr/0000-0003-3412-4004; Delaere, Christophe/0000-0001-8707-6021; Tytgat, Michael/0000-0002-3990-2074; Brooke, James/0000-0003-2529-0684; Jafari, Abideh/0000-0001-7327-1870; Noll, Dennis Daniel Nick/0000-0002-0176-2360; Galli Mercadante, Pedro/0000-0001-8333-4302; Alves, Gilvan/0000-0002-8369-1446; Bethani, Agni/0000-0002-8150-7043; Hussain, Priya Sajid/0000-0002-4825-5278; Brigljevic, Vuko/0000-0001-5847-0062; Hamel De Monchenault, Gautier/0000-0002-3872-3592; Tonelli, Guido Emilio/0000-0003-2606-9156; Tiwari, Praveen Chandra/0000-0002-3667-3843; Gonzalez Caballero, Isidro/0000-0002-8087-3199; Ventura, Sandro/0000-0002-8938-2193; Kim, Tae Jeong/0000-0001-8336-2434; Kolberg, Ted/0000-0002-0211-6109; Beaudette, Florian/0000-0002-1194-8556; Litov, Leandar/0000-0002-8511-6883The pseudorapidity (eta) distributions of charged hadrons are measured using data collected at the highest ever nucleon-nucleon center-of-mass energy of root s(NN) = 5.36 TeV for collisions of lead-lead ions. The data were recorded by the CMS experiment at the LHC in 2022 and correspond to an integrated luminosity of 0.30 +/- 0.03 mu b(-1). Using the CMS silicon pixel detector, the yields of primary charged hadrons produced in the range |eta| < 2.6 are reported. The evolution of the midrapidity particle density as a function of collision centrality is also reported. In the 5% most central collisions, the charged-hadron eta density in the range |eta| < 0.5 is found to be 2032 +/- 91 (syst), with negligible statistical uncertainty. This result is consistent with an extrapolation from nucleus-nucleus collision data at lower center-of-mass energies. Comparisons are made to various Monte Carlo event generators and to previous measurements of lead-lead and xenon-xenon collisions at similar collision energies. These new data detail the dependence of particle production on the collision energy, initial collision geometry, and the size of the colliding nuclei.eninfo:eu-repo/semantics/openAccessCmsHadronsMultiplicitySpectraArticle