Αρχική Σελίδα > TOTEM Preprints > Elastic differential cross-section measurement at $\sqrt{s}=13$ TeV by TOTEM |
Article | |
Report number | arXiv:1812.08283 ; CERN-EP-2018-338 ; TOTEM-2018-003 |
Title | Elastic differential cross-section measurement at $\sqrt{s}=13$ TeV by TOTEM |
Author(s) |
Antchev, G. (Sofiya, Inst. Nucl. Res.) ; Aspell, P. (CERN) ; Atanassov, I. (Sofiya, Inst. Nucl. Res.) ; Avati, V. (AGH-UST, Cracow) ; Baechler, J. (CERN) ; Barrera, C.Baldenegro (Kansas U.) ; Berardi, V. (INFN, Bari ; Bari U.) ; Berretti, M. (Helsinki Inst. of Phys.) ; Bossini, E. (INFN, Siena ; Siena U.) ; Bottigli, U. (INFN, Siena ; Siena U.) ; Bozzo, M. (INFN, Genoa ; Genoa U.) ; Burkhardt, H. (CERN) ; Cafagna, F.S. (INFN, Bari) ; Catanesi, M.G. (INFN, Bari) ; Csanád, M. (Wigner RCP, Budapest ; Eotvos U.) ; Csörgő, T. (Wigner RCP, Budapest ; Unlisted, HU) ; Deile, M. (CERN) ; De Leonardis, F. (INFN, Bari ; Bari Polytechnic) ; Doubek, M. (CTU, Prague) ; Druzhkin, D. (CERN) ; Eggert, K. (Case Western Reserve U.) ; Eremin, V. (Ioffe Phys. Tech. Inst.) ; Ferro, F. (INFN, Genoa) ; Fiergolski, A. (CERN) ; Garcia, F. (Helsinki Inst. of Phys.) ; Georgiev, V. (Pilsen U.) ; Giani, S. (CERN) ; Grzanka, L. (AGH-UST, Cracow) ; Hammerbauer, J. (Pilsen U.) ; Ivanchenko, V. (Tomsk State U.) ; Kašpar, J. (INFN, Pisa ; Prague, Inst. Phys.) ; Kopal, J. (CERN) ; Kundrát, V. (Prague, Inst. Phys.) ; Lami, S. (INFN, Pisa) ; Latino, G. (INFN, Siena ; Siena U.) ; Lauhakangas, R. (Helsinki Inst. of Phys.) ; Lindsey, C. (Kansas U.) ; Lokajíček, M.V. (Prague, Inst. Phys.) ; Losurdo, L. (INFN, Siena ; Siena U.) ; Lo Vetere, M. (INFN, Genoa ; Genoa U.) ; Lucas Rodríguez, F. (CERN) ; Macrí, M. (INFN, Genoa) ; Malawski, M. (AGH-UST, Cracow) ; Minafra, N. (Kansas U.) ; Minutoli, S. (INFN, Genoa) ; Naaranoja, T. (Helsinki Inst. of Phys. ; Helsinki U.) ; Nemes, F. (CERN ; Wigner RCP, Budapest) ; Niewiadomski, H. (Case Western Reserve U.) ; Novák, T. (Unlisted, HU) ; Oliveri, E. (CERN) ; Oljemark, F. (Helsinki Inst. of Phys. ; Helsinki U.) ; Oriunno, M. (SLAC) ; Österberg, K. (Helsinki Inst. of Phys. ; Helsinki U.) ; Palazzi, P. (CERN) ; Passaro, V. (Bari Polytechnic ; INFN, Bari) ; Peroutka, Z. (Pilsen U.) ; Procházka, J. (CTU, Prague) ; Quinto, M. (INFN, Bari ; Bari U.) ; Radermacher, E. (CERN) ; Radicioni, E. (INFN, Bari) ; Ravotti, F. (CERN) ; Robutti, E. (INFN, Genoa) ; Royon, C. (Kansas U.) ; Ruggiero, G. (CERN) ; Saarikko, H. (Helsinki Inst. of Phys. ; Helsinki U.) ; Scribano, A. (INFN, Pisa) ; Smajek, J. (CERN) ; Snoeys, W. (CERN) ; Sziklai, J. (Wigner RCP, Budapest) ; Taylor, C. (Case Western Reserve U.) ; Tcherniaev, E. (Tomsk State U.) ; Turini, N. (INFN, Siena ; Siena U.) ; Vacek, V. (CTU, Prague) ; Welti, J. (Helsinki Inst. of Phys. ; Helsinki U.) ; Williams, J. (Kansas U.) ; Ciesielski, R. (Rockefeller U.) |
Corporate Author(s) | The TOTEM collaboration |
Publication | 2019-10-19 |
Imprint | 13 Dec 2018 |
Number of pages | 20 |
Note | 76 authors, 20 pages, 11 figures, 5 tables |
In: | Eur. Phys. J. C 79 (2019) 861 |
DOI | 10.1140/epjc/s10052-019-7346-7 |
Subject category | Particle Physics - Experiment ; nucl-ex ; Nuclear Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology ; hep-ex |
Accelerator/Facility, Experiment | CERN LHC ; TOTEM |
Free keywords | forward physics ; global features ; experimental results ; Elastic cross-section ; Forward physics ; Roman pots |
Abstract | The TOTEM collaboration has measured the elastic proton-proton differential cross section dσ/dt at √s = 13 TeV LHC energy using dedicated beta∗ = 90 m beam optics. The Roman Pot detectors were inserted to 10σ distance from the LHC beam, which allowed the measurement of the range [0.04 GeV**2;4 GeV**2] in four-momentum transfer squared |t|. The efficient data acquisition allowed to collect about 10**9 elastic events to precisely measure the differential cross-section including the diffractive minimum (dip), the subsequent maximum (bump) and the large-|t| tail. The average nuclear slope has been found to be B = (20.40 ± 0.002 stat ± 0.01 syst ) GeV**−2 in the |t |-range 0.04 GeV**2 to 0.2 GeV**2. The dip position is |tdip| = (0.47 ± 0.004 stat ± 0.01 syst) GeV**2. The differential cross section ratio at the bump vs. at the dip R = 1.77 ± 0.01stat has been measured with high precision. The series of TOTEM elastic pp measurements show that the dip is a permanent feature of the pp differential cross-section at the TeV scale. |
Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © CERN for the benefit of the TOTEM collaboration 2019 (License: CC-BY-4.0) |