학술논문

Underlying Event measurements in pp collisions at $ \sqrt {s} = 0.9 $ and 7 TeV with the ALICE experiment at the LHC
Document Type
Original Paper
Author
Abelev, BettyQuintana, Arian AbrahantesAdamova, DagmarAdare, Andrew MarshallAggarwal, MadanRinella, Gianluca AglieriAgocs, Andras GaborAgostinelli, AndreaSalazar, Saul AguilarAhammed, ZubayerAhmad, NazeerAhmad, ArshadAhn, Sang UnAkindinov, AlexanderAleksandrov, DmitryAlessandro, BrunoMolina, Jose Ruben AlfaroAlici, AndreaAlkin, AntonAvina, Erick Jonathan AlmarazAlt, TorstenAltini, ValerioAltinpinar, SedatAltsybeev, IgorAndrei, CristianAndronic, AntonAnguelov, VenelinAnson, Christopher DanielAnticic, TomeAntinori, FedericoAntonioli, PietroAphecetche, Laurent BernardAppelshauser, HaraldArbor, NicolasArcelli, SilviaArend, AndreasArmesto, NestorArnaldi, RobertaAronsson, Tomas RobertArsene, Ionut CristianArslandok, MesutAsryan, AndzheyAugustinus, AndreAverbeck, Ralf PeterAwes, TerryAysto, Juha HeikkiAzmi, Mohd DanishBach, Matthias JakobBadala, AngelaBaek, Yong WookBailhache, Raphaelle MarieBala, RenuFerroli, Rinaldo BaldiniBaldisseri, AlbertoBaldit, AlainPedrosa, Fernando Baltasar Dos SantosBan, JaroslavBaral, Rama ChandraBarbera, RobertoBarile, FrancescoBarnafoldi, Gergely GaborBarnby, Lee StuartBarret, ValerieBartke, Jerzy GustawBasile, MaurizioBastid, NicoleBathen, BastianBatigne, GuillaumeBatyunya, BorisBaumann, Christoph HeinrichBearden, Ian GardnerBeck, HansBelikov, IouriBellini, FrancescaBellwied, ReneBelmont-Moreno, ErnestoBeole, StefaniaBerceanu, IonelaBercuci, AlexandruBerdnikov, YaroslavBerenyi, DanielBergmann, CyranoBerzano, DarioBetev, LatchezarBhasin, AnjuBhati, Ashok KumarBianchi, NicolaBianchi, LivioBianchin, ChiaraBielcik, JaroslavBielcikova, JanaBilandzic, AnteBlanco, F.Blanco, FrancescoBlau, DmitryBlume, ChristophBoccioli, MarcoBock, NicolasBogdanov, AlexeyBoggild, HansBogolyubsky, MikhailBoldizsar, LaszloBombara, MarekBook, JulianBorel, HerveBorissov, AlexanderBortolin, ClaudioBose, Suvendu NathBossu, FrancescoBotje, MichielBottger, StefanBoyer, Bruno AlexandreBraun-Munzinger, PeterBregant, MarcoBreitner, Timo GuntherBroz, MichalBrun, ReneBruna, ElenaBruno, Giuseppe EugenioBudnikov, DmitryBuesching, HennerBufalino, StefaniaBugaiev, KyryloBusch, OliverButhelezi, Edith ZinhleCaffarri, DavideCai, XuCaines, Helen LouiseVillar, Ernesto CalvoCamerini, PaoloRoman, Veronica CanoaRomeo, Giovanni CaraCarena, FrancescoCarena, WislaFilho, Nelson CarlinCarminati, FedericoMontoya, Camilo Andres CarrilloDiaz, Amaya Ofelia CasanovaCaselle, MicheleCastellanos, Javier Ernesto CastilloHernandez, Juan Francisco CastilloCasula, Ester Anna RitaCatanescu, VasileCavicchioli, CostanzaCepila, JanCerello, PiergiorgioChang, BeomsuChapeland, SylvainCharvet, Jean-Luc FernandChattopadhyay, SukalyanChattopadhyay, SubhasisCherney, Michael GerardCheshkov, CvetanCheynis, BrigitteChiavassa, EmilioBarroso, Vasco Miguel ChibanteChinellato, DavidChochula, PeterChojnacki, MarekChristakoglou, PanagiotisChristensen, Christian HolmChristiansen, PeterChujo, TatsuyaChung, Suh-UrkCicalo, CorradoCifarelli, LuisaCindolo, FedericoCleymans, Jean Willy AndreCoccetti, FabrizioCoffin, Jean-Pierre MichelColamaria, FabioColella, DomenicoBalbastre, Gustavo Conesadel Valle, Zaida ConesaConstantin, PaulContin, GiacomoContreras, Jesus GuillermoCormier, Thomas MichaelMorales, Yasser CorralesCortese, PietroMaldonado, Ismael CortesCosentino, Mauro RogerioCosta, FilippoCotallo, Manuel EnriqueCrescio, ElisabettaCrochet, PhilippeAlaniz, Emilia CruzCuautle, EleazarCunqueiro, LeticiaDainese, AndreaDalsgaard, Hans HjersingDanu, AndreaDas, IndranilDas, KushalDas, DebasishDash, Ajay KumarDash, SadhanaDe, SudipanDe Azevedo Moregula, Andreade Barros, GabrielDe Caro, Annalisade Cataldo, Giacintode Cuveland, JanDe Falco, AlessandroDe Gruttola, DanieleDelagrange, HuguesDel Castillo Sanchez, EduardoDeloff, AndrzejDemanov, VyacheslavDe Marco, NoraDenes, ErvinDe Pasquale, SalvatoreDeppman, AirtonD’Erasmo, Ginevrade Rooij, Raoul StefanDi Bari, DomenicoDietel, ThomasDi Giglio, CarmeloDi Liberto, SergioDi Mauro, AntonioDi Nezza, PasqualeDivia, RobertoDjuvsland, OeysteinDobrin, Alexandru FlorinDobrowolski, Tadeusz AntoniDominguez, IsabelDonigus, BenjaminDordic, OljaDriga, OlgaDubey, Anand KumarDucroux, LaurentDupieux, PascalMajumdar, Mihir Ranjan DuttaMajumdar, A.K. DuttaElia, DomenicoEmschermann, David PhilipEngel, HeikoErdal, Hege AustrheimEspagnon, BrunoEstienne, Magali DanielleEsumi, ShinichiEvans, DavidEyyubova, GyulnaraFabris, DanielaFaivre, JulienFalchieri, DavideFantoni, AlessandraFasel, MarkusFearick, Roger WorsleyFedunov, AnatolyFehlker, DominikFeldkamp, LinusFelea, DanielFeofilov, GrigoryTellez, Arturo FernandezFerretti, AlessandroFerretti, RobertaFigiel, JanFigueredo, MarcelFilchagin, SergeyFini, Rosa AnnaFinogeev, DmitryFionda, FiorellaFiore, Enrichetta MariaFloris, MicheleFoertsch, Siegfried ValentinFoka, PanagiotaFokin, SergeyFragiacomo, EnricoFragkiadakis, MichailFrankenfeld, Ulrich MichaelFuchs, UlrichFurget, ChristopheGirard, Mario FuscoGaardhoje, Jens JoergenGagliardi, MartinoGago, AlbertoGallio, MauroGangadharan, Dhevan RajaGanoti, ParaskeviGarabatos, JoseGarcia-Solis, EdmundoGarishvili, IrakliGerhard, JochenGermain, MarieGeuna, ClaudioGheata, Andrei GeorgeGheata, MihaelaGhidini, BrunoGhosh, PremomoyGianotti, PaolaGirard, Martin RobertGiubellino, PaoloGladysz-Dziadus, EwaGlassel, PeterGomez, RamonFerreiro, Elena GonzalezGonzalez-Trueba, Laura HelenaGonzalez-Zamora, PedroGorbunov, SergeyGoswami, AnkitaGotovac, SvenGrabski, VarlenGraczykowski, Lukasz KamilGrajcarek, RobertGrelli, AlessandroGrigoras, CostinGrigoras, Alina GabrielaGrigoriev, VladislavGrigoryan, AraGrigoryan, SmbatGrinyov, BorisGrion, NevioGros, PhilippeGrosse-Oetringhaus, Jan FieteGrossiord, Jean-YvesGrosso, RaffaeleGuber, FedorGuernane, RachidGutierrez, Cesar GuerraGuerzoni, BarbaraGuilbaud, Maxime Rene JosephGulbrandsen, Kristjan HerlacheGunji, TakuGupta, AnikGupta, RamniGutbrod, HansHaaland, Oystein SennesetHadjidakis, Cynthia MarieHaiduc, MariaHamagaki, HidekiHamar, GergoeHan, ByoungheeHanratty, Luke DavidHansen, AlexanderHarmanova, ZuzanaHarris, John WilliamHartig, MatthiasHasegan, DumitruHatzifotiadou, DespoinaHayrapetyan, ArsenHeckel, Stefan ThomasHeide, Markus AnsgarHelstrup, HaavardHerghelegiu, Andrei IonutCorral, Gerardo Antonio HerreraHerrmann, NorbertHetland, Kristin FanebustHicks, BernardHille, Per ThomasHippolyte, BorisHoraguchi, TakumaHori, YasutoHristov, Peter ZaharievHrivnacova, IvanaHuang, MeidanaHuber, Sebastian BerndHumanic, ThomasHwang, Dae SungIchou, RaphaelleIlkaev, RadiyIlkiv, IrynaInaba, MotoiIncani, ElisaInnocenti, Pier GiorgioInnocenti, Gian MicheleIppolitov, MikhailIrfan, MuhammadIvan, Cristian GeorgeIvanov, MarianIvanov, VladimirIvanov, AndreyIvanytskyi, OleksiiJacholkowski, Adam WlodzimierzJacobs, PeterJancurova, LuciaJang, Haeng JinJangal, Swensy GwladysJanik, RudolfJanik, Malgorzata AnnaJayarathna, SandunJena, SatyajitBustamante, Raul Tonatiuh JimenezJirden, LennartJones, Peter GrahamJung, Won WoongJung, Hyung TaikJusko, AntonKaidalov, AlexeiKakoyan, VanikKalcher, SebastianKalinak, PeterKalisky, MatusKalliokoski, Tuomo Esa AukustiKalweit, Alexander PhilippKanaki, KalliopiKang, Ju HwanKaplin, VladimirUysal, Ayben KarasuKaravichev, OlegKaravicheva, TatianaKarpechev, EvgenyKazantsev, AndreyKebschull, Udo WolfgangKeidel, RalfKhan, PalashKhan, Mohisin MohammedKhan, Shuaib AhmadKhanzadeev, AlexeiKharlov, YuryKileng, BjarteKim, JonghyunKim, Dong JoKim, Do WonKim, Jin SookKim, MinwooKim, Seon HeeKim, Se YongKim, BeomkyuKim, TaesooKirsch, StefanKisel, IvanKiselev, SergeyKisiel, Adam RyszardKlay, Jennifer LynnKlein, JochenKlein-Bosing, ChristianKliemant, MichaelKluge, AlexanderKnichel, Michael LinusKoch, KathrinKohler, MarkusKolojvari, AnatolyKondratiev, ValeryKondratyeva, NataliaKonevskih, ArtemKorneev, AndreyDon, Chamath Kottachchi KankanamgeKour, RavjeetKowalski, MarekKox, SergeMeethaleveedu, Greeshma KoyithattaKral, JiriKralik, IvanKramer, FrederickKraus, Ingrid ChristineKrawutschke, TobiasKretz, MatthiasKrivda, MarianKrizek, FilipKrus, MiroslavKryshen, EvgenyKrzewicki, MikolajKucheriaev, YuryKuhn, Christian ClaudeKuijer, PaulKurashvili, PodistKurepin, A.B.Kurepin, A.Kuryakin, AlexeyKushpil, SvetlanaKushpil, VasilyKvaerno, HenningKweon, Min JungKwon, Youngilde Guevara, Pedro LadronLakomov, IgorLangoy, RuneLara, Camilo ErnestoLardeux, Antoine XavierLa Rocca, PaolaLazzeroni, CristinaLea, RamonaLe Bornec, YvesLee, Sung ChulLee, Ki SangLefevre, FredericLehnert, Joerg WalterLeistam, LarsLenhardt, Matthieu LaurentLenti, VitoLeon, HermesMonzon, Ildefonso LeonVargas, Hermes LeonLevai, PeterLi, XiaomeiLien, JorgenLietava, RomanLindal, SveinLindenstruth, VolkerLippmann, ChristianLisa, Michael AnnanLiu, LijiaoLoenne, Per-IvarLoggins, VeraLoginov, VitalyLohn, Stefan BernhardLohner, DanielLoizides, ConstantinosLoo, Kai KristerLopez, Xavier BernardTorres, Ernesto LopezLovhoiden, GunnarLu, XianguoLuettig, PhilippLunardon, MarcelloLuo, JiebinLuparello, GraziaLuquin, LionelLuzzi, CinziaMa, RongrongMa, KeMadagodahettige-Don, Dilan MinthakaMaevskaya, AllaMager, MagnusMahapatra, Durga PrasadMaire, AntoninMalaev, MikhailCervantes, Ivonne Alicia MaldonadoMalinina, LudmilaMal’Kevich, DmitryMalzacher, PeterMamonov, AlexanderManceau, Loic Henri AntoineMangotra, Lalit KumarManko, VladislavManso, FranckManzari, VitoMao, YaxianMarchisone, MassimilianoMares, JiriMargagliotti, Giacomo VitoMargotti, AnselmoMarin, Ana MariaMarkert, ChristinaMartashvili, IrakliMartinengo, PaoloMartinez, Mario IvanDavalos, Arnulfo MartinezGarcia, Gines MartinezMartynov, YevgenMas, Alexis Jean-MichelMasciocchi, SilviaMasera, MassimoMasoni, AlbertoMassacrier, Laure MarieMastromarco, MarioMastroserio, AnnalisaMatthews, Zoe LouiseMatyja, Adam TomaszMayani, DanielMayer, ChristophMazer, JoelMazzoni, Alessandra MariaMeddi, FrancoMenchaca-Rocha, Arturo AlejandroPerez, Jorge MercadoMeres, MichalMiake, YasuoMichalon, AlainMidori, JumpeiMilano, LeonardoMilosevic, JovanMischke, AndreMishra, Aditya NathMiskowiec, DariuszMitu, Ciprian MihaiMlynarz, JocelynMohanty, Ajit KumarMohanty, BedangadasMolnar, LeventeZetina, Luis Manuel MontanoMonteno, MarcoMontes, EstherMoon, TaebongMorando, MaurizioDe Godoy, Denise Aparecida MoreiraMoretto, SandraMorsch, AndreasMuccifora, ValeriaMudnic, EugenMuhuri, SanjibMuller, HansMunhoz, MarceloMusa, LucianoMusso, AlfredoNandi, Basanta KumarNania, RosarioNappi, EugenioNattrass, ChristineNaumov, NikolayNavin, SparshNayak, Tapan KumarNazarenko, SergeyNazarov, GlebNedosekin, AlexanderNicassio, MariaNielsen, Borge SvaneNiida, TakafumiNikolaev, SergeyNikolic, VedranNikulin, VladimirNikulin, SergeyNilsen, Bjorn StevenNilsson, Mads StormoNoferini, FrancescoNomokonov, PetrNooren, GerardusNovitzky, NorbertNyanin, AlexandreNyatha, AnithaNygaard, CasperNystrand, Joakim IngemarObayashi, HideyukiOchirov, AlexanderOeschler, Helmut OskarOh, Sun KunOh, SaehanseulOleniacz, JanuszOppedisano, ChiaraVelasquez, Antonio OrtizOrtona, GiacomoOskarsson, Anders Nils ErikOstrowski, Piotr KrystianOtterlund, IngvarOtwinowski, Jacek TomaszOyama, KenOzawa, KyoichiroPachmayer, Yvonne ChiaraPachr, MilosPadilla, FatimaPagano, PaolaPaic, GuyPainke, FlorianPajares, CarlosPal, S.Pal, Susanta KumarPalaha, Arvinder SinghPalmeri, ArmandoPapikyan, VardanushPappalardo, GiuseppePark, Woo JinPassfeld, AnnikaPastircak, BlahoslavPatalakha, Dmitri IvanovichPaticchio, VincenzoPavlinov, AlexeiPawlak, Tomasz JanPeitzmann, ThomasPerales, MarianelaDe Oliveira Filho, Elienos PereiraPeresunko, DmitriLara, Carlos Eugenio PerezLezama, Edgar PerezPerini, DiegoPerrino, DavidePeryt, Wiktor StanislawPesci, AlessandroPeskov, VladimirPestov, YuryPetracek, VojtechPetran, MichalPetris, MarianaPetrov, Plamen RumenovPetrovici, MihaiPetta, CatiaPiano, StefanoPiccotti, AnnaPikna, MiroslavPillot, PhilippePinazza, OmbrettaPinsky, LawrencePitz, NoraPiuz, FrancoisPiyarathna, DanthasinghePloskon, Mateusz AndrzejPluta, Jan MarianPocheptsov, TimurPochybova, SonaLerma, Pedro Luis Manuel PodestaPoghosyan, MartinPolak, KarelPolichtchouk, BorisPop, AmaliaPorteboeuf-Houssais, SarahPospisil, VladimirPotukuchi, BabaPrasad, Sidharth KumarPreghenella, RobertoPrino, FrancescoPruneau, Claude AndrePshenichnov, IgorPuchagin, SergeyPuddu, GiovannaPulvirenti, AlbertoPunin, ValeryPutis, MarianPutschke, Jorn HenningQuercigh, EmanueleQvigstad, HenrikRachevski, AlexandreRademakers, AlphonseRadomski, SylwesterRaiha, Tomi SamuliRak, JanRakotozafindrabe, Andry MalalaRamello, LucianoReyes, Abdiel RamirezRaniwala, SudhirRaniwala, RashmiRasanen, Sami SakariRascanu, Bogdan TheodorRathee, DeepikaRead, Kenneth FrancisReal, Jean-SebastienRedlich, KrzysztofReichelt, PatrickReicher, MartijnRenfordt, Rainer Arno ErnstReolon, Anna RitaReshetin, AndreyRettig, Felix VincenzRevol, Jean-PierreReygers, Klaus JohannesRiccati, LodovicoRicci, Renato AngeloRichter, Matthias RudolphRiedler, PetraRiegler, WernerRiggi, FrancescoCahuantzi, Mario RodriguezRohr, DavidRohrich, DieterRomita, RosaRonchetti, FedericoRosnet, PhilippeRossegger, StefanRossi, AndreaRoukoutakis, FilimonRoy, Pradip KumarRoy, Christelle SophieMontero, Antonio Juan RubioRui, RinaldoRyabinkin, EvgenyRybicki, AndrzejSadovsky, SergeySafarik, KarelSahu, Pradip KumarSaini, JogenderSakaguchi, HiroakiSakai, ShingoSakata, DosatsuSalgado, Carlos AlbertSambyal, Sanjeev SinghSamsonov, VladimirCastro, Xitzel SanchezSandor, LadislavSandoval, AndresSano, MasatoSano, SatoshiSanto, RainerSantoro, RomualdoSarkamo, Juho JaakoScapparone, EugenioScarlassara, FernandoScharenberg, Rolf PaulSchiaua, Claudiu CornelSchicker, Rainer MartinSchmidt, Christian JoachimSchmidt, Hans RudolfSchreiner, SteffenSchuchmann, SimoneSchukraft, JurgenSchutz, Yves RolandSchwarz, Kilian EberhardSchweda, Kai OliverScioli, GildaScomparin, EnricoScott, RebeccaScott, Patrick AaronSegato, GianfrancoSelioujenkov, IlyaSenyukov, SerhiySeo, JeewonSerci, SergioSerradilla, EulogioSevcenco, AdrianSgura, IreneShabetai, AlexandreShabratova, GalinaShahoyan, RubenSharma, NatashaSharma, SatishShigaki, KentaShimomura, MayaShtejer, KatherinSibiriak, YurySiciliano, MelindaSicking, EvaSiddhanta, SabyasachiSiemiarczuk, TeodorSilvermyr, David Olle RickardSimonetti, GiuseppeSingaraju, Rama NarayanaSingh, RanbirSingha, SubhashSinha, BikashSinha, TinkuSitar, BranislavSitta, MarioSkaali, BernhardSkjerdal, KyrreSmakal, RadekSmirnov, NikolaiSnellings, RaimondSogaard, CarstenSoltz, Ron ArielSon, HyungsukSong, JihyeSong, MyunggeunSoos, CsabaSoramel, FrancescaSputowska, IwonaSpyropoulou-Stassinaki, MarthaSrivastava, Brijesh KumarStachel, JohannaStan, IonelStan, IonelStefanek, GrzegorzStefanini, GiorgioSteinbeck, Timm MortenSteinpreis, MatthewStenlund, Evert AndersSteyn, Gideon FrancoisStocco, DiegoStolpovskiy, MikhailStrabykin, KirillStrmen, Peterdo Passo Suaide, Alexandre AlarconVasquez, Martin Alfonso SubietaSugitate, ToruSuire, Christophe PierreSukhorukov, MikhailSultanov, RishatSumbera, MichalSusa, Tatjanade Toledo, Alejandro SzantoSzarka, ImrichSzostak, Artur KrzysztofTagridis, ChristosTakahashi, JunTakaki, Daniel Jesus TapiaTauro, ArturoMunoz, Guillermo TejedaTelesca, AdrianaTerrevoli, CristinaThader, Jochen MathiasThomas, JimThomas, DeepaTieulent, Raphael NoelTimmins, AnthonyTlusty, DavidToia, AlbericaTorii, HisayukiToscano, LucaTosello, FlavioTraczyk, TomaszTruesdale, David ChristopherTrzaska, Wladyslaw HenrykTsuji, TomoyaTumkin, AlexandrTurrisi, RosarioTveter, Trine SpedstadUlery, Jason GlyndwrUllaland, KjetilUlrich, JochenUras, AntonioUrban, JozefUrciuoli, Guido MarieUsai, GianlucaVajzer, MichalVala, MartinPalomo, Lizardo ValenciaVallero, Saravan der Kolk, NaomiVyvre, Pierre Vandevan Leeuwen, MarcoVannucci, LuigiVargas, Aurora DiozcoraVarma, RaghavaVasileiou, MariaVasiliev, AndreyVechernin, VladimirVeldhoen, MishaVenaruzzo, MassimoVercellin, ErmannoVergara, SergioVernekohl, Don ConstantinVernet, RenaudVerweij, MartaVickovic, LindaViesti, GiuseppeVikhlyantsev, OlegVilakazi, ZabulonBaillie, Orlando VillalobosVinogradov, LeonidVinogradov, YuryVinogradov, AlexanderVirgili, TizianoViyogi, YogendraVodopianov, AlexanderVoloshin, SergeyVoloshin, KirillVolpe, Giacomovon Haller, BarthelemyVranic, Danilovrebekk, GauteVrlakova, JankaVulpescu, BogdanVyushin, AlexeyWagner, BorisWagner, VladimirWan, RenzhuoWang, YifeiWang, MengliangWang, DongWang, YapingWatanabe, KengoWessels, JohannesWesterhoff, UweWiechula, JensWikne, JonWilde, Martin RudolfWilk, Grzegorz AndrzejWilk, AlexanderWilliams, CrispinWindelband, Bernd StefanKarampatsos, Leonidas XaplanterisYang, HongyanYang, ShimingYano, SatoshiYasnopolsky, StanislavYi, JunGyuYin, ZhongbaoYokoyama, HirokiYoo, In-KwonYoon, JongikYu, WeilinYuan, XianbaoYushmanov, IgorZach, CenekZampolli, ChiaraZaporozhets, SergeyZarochentsev, AndreyZavada, PetrZaviyalov, NikolaiZbroszczyk, Hanna PaulinaZelnicek, PierreZgura, Sorin IonZhalov, MikhailZhang, XiaomingZhou, FengchuZhou, YouZhou, DaicuiZhu, XiangrongZichichi, AntoninoZimmermann, AliceZinovjev, GennadyZoccarato, Yannick DenisZynovyev, MykhayloThe ALICE collaboration
Source
Journal of High Energy Physics. July 2012 2012(7):1-43
Subject
Hadron-Hadron Scattering
Language
English
ISSN
1029-8479
Abstract
Abstract:We present measurements of Underlying Event observables in pp collisions at $ \sqrt {s} = 0.9 $ and 7TeV. The analysis is performed as a function of the highest charged-particle transverse momentum pT,LT in the event. Different regions are defined with respect to the azimuthal direction of the leading (highest transverse momentum) track: Toward, Transverse and Away. The Toward and Away regions collect the fragmentation products of the hardest partonic interaction. The Transverse region is expected to be most sensitive to the Underlying Event activity. The study is performed with charged particles above three different pT thresholds: 0.15, 0.5 and 1.0 GeV/c. In the Transverse region we observe an increase in the multiplicity of a factor 2–3 between the lower and higher collision energies, depending on the track pT threshold considered. Data are compared to Pythia 6.4, Pythia 8.1 and Phojet. On average, all models considered underestimate the multiplicity and summed pT in the Transverse region by about 10–30%.