Elastic differential cross-section dσ/dt at s√=2.76 TeV and implications on the existence of a colourless C-odd three-gluon compound state

View/ Open
Issue Date
2020-02-05Author
Antchev, G.
Aspell, P.
Atanassov, I.
Avati, V.
Baechler, J.
Baldenegro Barrera, C.
Berardi, V.
Berretti, M.
Bossini, E.
Bottigli, U.
Bozzo, M.
Burkhardt, H.
Cafagna, F.S.
Catanesi, M.G.
Csanád, M.
Csörgő, T.
Deile, M.
De Leonardis, F.
Doubek, M.
Druzhkin, D.
Eggert, K.
Eremin, V.
Ferro, F.
Fiergolski, A.
Garcia, F.
Georgiev, V.
Giani, S.
Grzanka, L.
Hammerbauer, J.
Ivanchenko, V.
Kašpar, J.
Kopal, J.
Kundrát, V.
Lami, S.
Latino, G.
Lauhakangas, R.
Lindsey, C.
Lokajícek, M.V.
Losurdo, L.
Lo Vetere, M.
Lucas Rodríguez, F.
Macrí, M.
Malawski, M.
Minafra, N.
Minutoli, S.
Naaranoja, T.
Nemes, F.
Niewiadomski, H.
Novák, 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.
Robutti, E.
Royon, C.
Ruggiero, G.
Saarikko, H.
Scribano, A.
Smajek, J.
Snoeys, W.
Sziklai, J.
Taylor, C.
Tcherniaev, E.
Turini, N.
Vacek, V.
Welti, J.
Williams, J.
Publisher
SpringerOpen
Type
Article
Article Version
Scholarly/refereed, publisher version
Rights
© The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License.
Metadata
Show full item recordAbstract
The proton–proton elastic differential cross section dσ/dt has been measured by the TOTEM experiment at s√=2.76 TeV energy with β∗=11 m beam optics. The Roman Pots were inserted to 13 times the transverse beam size from the beam, which allowed to measure the differential cross-section of elastic scattering in a range of the squared four-momentum transfer (|t|) from 0.36 to 0.74 GeV2. The differential cross-section can be described with an exponential in the |t|-range between 0.36 and 0.54 GeV2, followed by a diffractive minimum (dip) at |tdip|=(0.61±0.03) GeV2 and a subsequent maximum (bump). The ratio of the dσ/dt at the bump and at the dip is 1.7±0.2. When compared to the proton–antiproton measurement of the D0 experiment at s√=1.96 TeV, a significant difference can be observed. Under the condition that the effects due to the energy difference between TOTEM and D0 can be neglected, the result provides evidence for the exchange of a colourless C-odd three-gluon compound state in the t-channel of the proton–proton and proton–antiproton elastic scattering.
Collections
Citation
Antchev, G., Aspell, P., Atanassov, I. et al. Elastic differential cross-section dσ/dt at s√=2.76 TeV and implications on the existence of a colourless C-odd three-gluon compound state. Eur. Phys. J. C 80, 91 (2020). https://doi.org/10.1140/epjc/s10052-020-7654-y
Items in KU ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
We want to hear from you! Please share your stories about how Open Access to this item benefits YOU.