Characterisation of the dip-bump structure observed in proton–proton elastic scattering at $$\sqrt{s}$$ = 8 TeV

Journal Article · Sat Mar 26 00:00:00 EDT 2022 · European Physical Journal. C, Particles and Fields

DOI:https://doi.org/10.1140/epjc/s10052-022-10065-x· OSTI ID:1867012

Antchev, G.; Aspell, P.; Atanassov, I.; Avati, V.; Baechler, J.; Barrera, C. Baldenegro; Berardi, V.; Berretti, M.; Borchsh, V.; 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.; Forthomme, L.; Garcia, F.; Georgiev, V.; Giani, S.; Grzanka, L.; Hammerbauer, J.; Isidori, T.; Ivanchenko, V.; Janda, M.; Karev, A.; Kašpar, J.; Kaynak, B.; Kopal, J.; Kundrát, V.; Lami, S.; Latino, G.; Linhart, R.; Lindsey, C.; Lokajíček, M. V.; Losurdo, L.; Rodríguez, F. Lucas; 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.; Samoylenko, V. D.; 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.

The TOTEM collaboration at the CERN LHC has measured the differential cross-section of elastic proton–proton scattering at √s = 8TeV in the squared four-momentum transfer range 0.2GeV² < |t| < 1.9GeV². 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 √s = 8 TeV yields the positions, |t|_dip = (0.521 ± 0.007)GeV² and |t|_bump = (0.695 ± 0.026)GeV², as well as the cross-section values, dσ/dt|_dip = (15.1 ± 2.5)μb/GeV² and dσ/dt|_bump = (29.7 ± 1.8)μb/GeV², for the dip and the bump, respectively.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Contributing Organization: TOTEM Collaboration
• Grant/Contract Number: AC02-76SF00515
• OSTI ID: 1867012
• Alternate ID(s): OSTI ID: 23132913
• Journal Information: European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Journal Issue: 3 Vol. 82; ISSN 1434-6044
• Publisher: Springer
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS