Characterisation of the dip-bump structure observed in proton-proton elastic scattering at root s=8 TeV

Antchev, G.; Aspell, P.; Atanassov, I; Avati, V; Baechler, J.; Barrera, C.; Berardi, V; Berretti, M.; Borchsh, V; Bossini, E.; Bottigli, U.; Bozzo, M.; Burkhardt, H.; Cafagna, F.; Catanesi, M.; Csanad, M.; Csorgo, T.; Deile, M.; De Leonardis, F.; Doubek, M.; Druzhkin, D.; Eggert, K.; Eremin, V; Ferro, F.; Fiergolski, A.; Forthomme, L.; Garcia, F.; Georgiev, V; Giani, S.; Grzanka, L.; Hammerbauer, J.; Isidori, T.; Ivanchenko, V; Janda, M.; Karev, A.; Kaspar, J.; Kaynak, B.; Kopal, J.; Kundrat, V; Lami, S.; Latino, G.; Linhart, R.; Lindsey, C.; Lokajicek, M.; Losurdo, L.; Rodriguez, F.; Macri, M.; Malawski, M.; Minafra, N.; Minutoli, S.; Naaranoja, T.; Nemes, F.; Niewiadomski, H.; Novak, T.; Oliveri, E.; Oljemark, F.; Oriunno, M.; Osterberg, K.; Palazzi, P.; Passaro, V; Peroutka, Z.; Prochazka, J.; Quinto, M.; Radermacher, E.; Radicioni, E.; Ravotti, F.; Robutti, E.; Royon, C.; Ruggiero, G.; Saarikko, H.; Samoylenko, V.; Scribano, A.; Siroky, J.; Smajek, J.; Snoeys, W.; Stefanovitch, R.; Sziklai, J.; Taylor, C.; Tcherniaev, E.; Turini, N.; Urban, O.; Vacek, V.; Vavroch, O.; Welti, J.; Williams, J.; Zich, J.; Zielinski, K.

doi:10.1140/epjc/s10052-022-10065-x

Characterisation of the dip-bump structure observed in proton-proton elastic scattering at root s=8 TeV

Antchev G., Aspell P., Atanassov I., Avati V., Baechler J., Barrera C. B., ...More

EUROPEAN PHYSICAL JOURNAL C, vol.82, no.3, 2022 (SCI-Expanded)

Publication Type: Article / Article
Volume: 82 Issue: 3
Publication Date: 2022
Doi Number: 10.1140/epjc/s10052-022-10065-x
Journal Name: EUROPEAN PHYSICAL JOURNAL C
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, INSPEC, zbMATH, Directory of Open Access Journals
Open Archive Collection: AVESIS Open Access Collection
Istanbul University Affiliated: No

Abstract

The TOTEM collaboration at the CERN LHC has measured the differential cross-section of elastic proton-proton scattering at root s = 8 TeV in the squared four-momentum transfer range 0.2 GeV2 < vertical bar t vertical bar < 1.9 GeV2. This interval includes the structure with a diffractive minimum ("dip") and a secondary maximum ("bump") that has also been observed at all other LHC energies, where measurements were made. A detailed characterisation of this structure for root s = 8 TeV yields the positions, vertical bar t vertical bar(dip) = (0.521 +/- 0.007) GeV2 and vertical bar t vertical bar(bump) = (0.695 +/- 0.026) GeV2, as well as the cross-section values, d sigma/dt vertical bar(dip) = (15.1 +/- 2.5) mu b/GeV2 and d sigma/dt vertical bar(bump) = (29.7 +/- 1.8) mu b/Ge-2, for the dip and the bump, respectively.