First determination of the ρ parameterat at √s = 13 TeV: probing the existence of a colourless C-odd three-gluon compound state

dc.contributor.authorAntchev, G.
dc.contributor.authorAspell, P.
dc.contributor.authorAtanassov, I.
dc.contributor.authorAvati, V.
dc.contributor.authorBaechler, J.
dc.contributor.authorBarrera, C. Baldenegro
dc.contributor.authorBerardi, V.
dc.contributor.authorBerretti, M.
dc.contributor.authorBossini, E.
dc.contributor.authorBottigli, U.
dc.contributor.authorBozzo, M.
dc.contributor.authorBruce, R.
dc.contributor.authorBurkhardt, H.
dc.contributor.authorCafagna, F.S.
dc.contributor.authorCatanesi, M.G.
dc.contributor.authorCsanád, M.
dc.contributor.authorCsörgö, T.
dc.contributor.authorDeile, M.
dc.contributor.authorDe Leonardis, F.
dc.contributor.authorD´Orazio, A.
dc.contributor.authorDoubek, Martin
dc.contributor.authorDruzhkin, D.
dc.contributor.authorEggert, K.
dc.contributor.authorEremin, V.
dc.contributor.authorFerro, F.
dc.contributor.authorFiergolski, A.
dc.contributor.authorGarcia, F.
dc.contributor.authorGarcia Morales, H.
dc.contributor.authorGeorgiev, Vjačeslav
dc.contributor.authorGiani, S.
dc.contributor.authorGrzanka, L.
dc.contributor.authorHammerbauer, Jiří
dc.contributor.authorHeino, J.
dc.contributor.authorHelander, P.
dc.contributor.authorIsidori, T.
dc.contributor.authorIvanchenko, V.
dc.contributor.authorJanda, Martin
dc.contributor.authorKarev, A.
dc.contributor.authorKašpar, Jiří
dc.contributor.authorKopal, J.
dc.contributor.authorKundrát, Vojtěch
dc.contributor.authorLami, S.
dc.contributor.authorLatino, G.
dc.contributor.authorLauhakangas, R.
dc.contributor.authorLinhart, Richard
dc.contributor.authorLindsey, C.
dc.contributor.authorLokajíček, Miloš
dc.contributor.authorLosurdo, L.
dc.contributor.authorLo Vetere, M.
dc.contributor.authorRodríguez, F. Lucas
dc.contributor.authorMacrí, M.
dc.contributor.authorMalawski, M.
dc.contributor.authorMereghetti, A.
dc.contributor.authorMinafra, N.
dc.contributor.authorMinutoli, S.
dc.contributor.authorMirarchi, D.
dc.contributor.authorNaarranoja, T.
dc.contributor.authorNemes, F.
dc.contributor.authorNiewiadomski, H.
dc.contributor.authorNovak, T.
dc.contributor.authorOliveri, E.
dc.contributor.authorOljemark, F.
dc.contributor.authorOriunno, M.
dc.contributor.authorÖsterberg, K.
dc.contributor.authorPalazzi, P.
dc.contributor.authorPassaro, V.
dc.contributor.authorPeroutka, Zdeněk
dc.contributor.authorProcházka, Jiří
dc.contributor.authorQuinto, M.
dc.contributor.authorRadermacher, E.
dc.contributor.authorRadicioni, E.
dc.contributor.authorRavotti, F.
dc.contributor.authorRedaelli, S.
dc.contributor.authorRobutti, E.
dc.contributor.authorRoyon, C.
dc.contributor.authorRuggiero, G.
dc.contributor.authorSaarikko, H.
dc.contributor.authorSalvachua, B.
dc.contributor.authorScribano, A.
dc.contributor.authorŠiroký, Jan
dc.contributor.authorSmajek, J.
dc.contributor.authorSnoeys, W.
dc.contributor.authorStefanovitch, R.
dc.contributor.authorSziklai, J.
dc.contributor.authorTaylor, C.
dc.contributor.authorTcherniaev, E.
dc.contributor.authorTurini, N.
dc.contributor.authorVacek, Václav
dc.contributor.authorValentino, G.
dc.contributor.authorWelti, J.
dc.contributor.authorWenninger, J.
dc.contributor.authorWilliams, J.
dc.contributor.authorWyszkowski, P.
dc.contributor.authorZich, Jan
dc.contributor.authorZielinski, K.
dc.date.accessioned2022-03-07T11:00:19Z
dc.date.available2022-03-07T11:00:19Z
dc.date.issued2019
dc.description.abstract-translatedThe TOTEM experiment at the LHC has performed the first measurement at √s = 13 TeV of the ρ parameter, the real to imaginary ratio of the nuclear elastic scattering amplitude at t = 0, obtaining the following results: ρ = 0.09 ± 0.01 and ρ = 0.10 ± 0.01, depending on different physics assumptions and mathematical modelling. The unprecedented precision of the ρ measurement, combined with the TOTEM total cross-section measurements in an energy range larger than 10 TeV (from 2.76 to 13 TeV) has implied the exclusion of all the models classified and published by COMPETE. The ρ results obtained by TOTEM are compatible with the predictions, from other theoretical models both in the Regge-like framework and in the QCD framework, of a crossing-odd colourless 3-gluon compound state exchange in the t-channel of the proton-proton elastic scattering. On the contrary, if shown that the crossing-odd 3-gluon compound state t-channel exchange is not of importance for the description of elastic scattering, the ρ value determined by TOTEM would represent a first evidence of a slowing down of the total cross-section growth at higher energies. The very low-|t| reach allowed also to determine the absolute normalisation using the Coulomb amplitude for the first time at the LHC and obtain a new total proton-proton cross-section measurement σtot = (110.3 ± 3.5) mb, completely independent from the previous TOTEM determination. Combining the two TOTEM results yields σtot = (110.5 ± 2.4) mb.en
dc.format26 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationANTCHEV, G. ASPELL, P. ATANASSOV, I. AVATI, V. BAECHLER, J. BARRERA, CB. BERARDI, V. BERRETTI, M. BOSSINI, E. BOTTIGLI, U. BOZZO, M. BRUCE, R. BURKHARDT, H. CAFAGNA, F. CATANESI, M. CSANÁD, M. CSÖRGÖ, T. DEILE, M. DE LEONARDIS, F. D´ORAZIO, A. DOUBEK, M. DRUZHKIN, D. EGGERT, K. EREMIN, V. FERRO, F. FIERGOLSKI, A. GARCIA, F. GARCIA MORALES, H. GEORGIEV, V. GIANI, S. GRZANKA, L. HAMMERBAUER, J. HEINO, J. HELANDER, P. ISIDORI, T. IVANCHENKO, V. JANDA, M. KAREV, A. KAŠPAR, J. KOPAL, J. KUNDRÁT, V. LAMI, S. LATINO, G. LAUHAKANGAS, R. LINHART, R. LINDSEY, C. LOKAJÍČEK, M. LOSURDO, L. LO VETERE, M. RODRÍGUEZ, FL. MACRÍ, M. MALAWSKI, M. MEREGHETTI, A. MINAFRA, N. MINUTOLI, S. MIRARCHI, D. NAARRANOJA, T. NEMES, F. NIEWIADOMSKI, H. NOVAK, T. OLIVERI, E. OLJEMARK, F. ORIUNNO, M. ÖSTERBERG, K. PALAZZI, P. PASSARO, V. PEROUTKA, Z. PROCHÁZKA, J. QUINTO, M. RADERMACHER, E. RADICIONI, E. RAVOTTI, F. REDAELLI, S. ROBUTTI, E. ROYON, C. RUGGIERO, G. SAARIKKO, H. SALVACHUA, B. SCRIBANO, A. ŠIROKÝ, J. SMAJEK, J. SNOEYS, W. STEFANOVITCH, R. SZIKLAI, J. TAYLOR, C. TCHERNIAEV, E. TURINI, N. VACEK, V. VALENTINO, G. WELTI, J. WENNINGER, J. WILLIAMS, J. WYSZKOWSKI, P. ZICH, ZIELINSKI, K. First determination of the ρ parameterat at √s = 13 TeV: probing the existence of a colourless C-odd three-gluon compound state. EUROPEAN PHYSICAL JOURNAL C, 2019, roč. 79, č. 9, s. 1-26. ISSN: 1434-6044cs
dc.identifier.document-number487452200001
dc.identifier.doi10.1140/epjc/s10052-019-7223-4
dc.identifier.issn1434-6044
dc.identifier.obd43922101
dc.identifier.uri2-s2.0-85073212646
dc.identifier.urihttp://hdl.handle.net/11025/47061
dc.language.isoenen
dc.publisherSpringeren
dc.relation.ispartofseriesEuropean Physical Journal Cen
dc.rights© CERN for the benefit of the TOTEM collaborationen
dc.rights.accessopenAccessen
dc.subject.translatedelastic-scattering amplitudeen
dc.subject.translatedregge singularitiesen
dc.subject.translatedperturbative qcden
dc.subject.translatedtotem experimenten
dc.subject.translatedodderonen
dc.subject.translatedinterferenceen
dc.subject.translatedbehavioren
dc.subject.translatedrealen
dc.titleFirst determination of the ρ parameterat at √s = 13 TeV: probing the existence of a colourless C-odd three-gluon compound stateen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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