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

The TOTEM collaboration at the CERN LHC has measured the differential cross-section of elastic proton–proton scattering at s = 8 TeV in the squared four-momentum transfer range 0.2 GeV 2 < | t | < 1.9 GeV 2 . This interval includes the structure with a diffractive minimum (“dip”) and a seconda...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2022-03, Vol.82 (3)
Main Authors: 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.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Collaboration
Cross-sections
Elastic scattering
Elementary Particles
Experiments
Hadrons
Heavy Ions
Large Hadron Collider
Letter
Measurement Science and Instrumentation
Momentum transfer
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Proton scattering
Quantum Field Theories
Quantum Field Theory
String Theory
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Summary:The TOTEM collaboration at the CERN LHC has measured the differential cross-section of elastic proton–proton scattering at s = 8 TeV in the squared four-momentum transfer range 0.2 GeV 2 < | t | < 1.9 GeV 2 . 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 ) GeV 2 and | t | bump = ( 0.695 ± 0.026 ) GeV 2 , as well as the cross-section values, d σ / d t dip = ( 15.1 ± 2.5 ) μ b / GeV 2 and d σ / d t bump = ( 29.7 ± 1.8 ) μ b / GeV 2 , for the dip and the bump, respectively.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-022-10065-x