First measurement of elastic, inelastic and total cross-section at sqrt(s)= 13 TeV by TOTEM and overview of cross-section data at LHC energies

The TOTEM collaboration has measured the proton–proton total cross section at $\sqrt{s}=13~\hbox {TeV}$ with a luminosity-independent method. Using dedicated $\beta ^{*}=90~\hbox {m}$ beam optics, the Roman Pots were inserted very close to the beam. The inelastic scattering rate has been measured by...

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Detalles Bibliográficos
Autores principales: Antchev, G., Aspell, P., Atanassov, I., Avati, V., Baechler, J., Barrera, C.B., 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., D'Orazio, A., Doubek, M., Druzhkin, D., Eggert, K., Eremin, V., Ferro, F., Fiergolski, A., Garcia, F., Georgiev, V., Giani, S., Grzanka, L., Hammerbauer, J., Heino, J., Helander, P., Isidori, T., Ivanchenko, V., Janda, M., Karev, A., Kašpar, J., Kopal, J., Kundrát, V., Lami, S., Latino, G., Lauhakangas, R., Linhart, R., Lindsey, C., Lokajíček, 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., Siroky, J., Smajek, J., Snoeys, W., Stefanovitch, R., Sziklai, J., Taylor, C., Tcherniaev, E., Turini, N., Vacek, V., Welti, J., Williams, J., Wyszkowski, P., Zich, J., Zielinski, K.
Lenguaje:eng
Publicado: 2017
Materias:
Particle Physics - Experiment
hep-ex
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-019-6567-0
http://cds.cern.ch/record/2296409
Descripción
Sumario:The TOTEM collaboration has measured the proton–proton total cross section at $\sqrt{s}=13~\hbox {TeV}$ with a luminosity-independent method. Using dedicated $\beta ^{*}=90~\hbox {m}$ beam optics, the Roman Pots were inserted very close to the beam. The inelastic scattering rate has been measured by the T1 and T2 telescopes during the same LHC fill. After applying the optical theorem the total proton–proton cross section is $\sigma _\mathrm{tot}=(110.6~\pm ~3.4$ ) mb, well in agreement with the extrapolation from lower energies. This method also allows one to derive the luminosity-independent elastic and inelastic cross sections: $\sigma _\mathrm{el}=(31.0~\pm ~1.7)~\hbox {mb}$ and $\sigma _\mathrm{inel}=(79.5~\pm ~1.8)~\hbox {mb}$ .

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