Details

Autor(en) / Beteiligte

• Antchev, G.
• Aspell, P.
• Atanassov, I.
• Avati, V.
• Baechler, J.
• Berardi, V.
• Berretti, M.
• Bossini, E.
• Bottigli, U.
• Bozzo, M.
• Broulím, P.
• Buzzo, A.
• Cafagna, F.S.
• Campanella, C.E.
• Catanesi, M.G.
• Csanád, M.
• Csörgő, T.
• Deile, M.
• De Leonardis, F.
• D'Orazio, A.
• Doubek, M.
• Eggert, K.
• Eremin, V.
• Ferro, F.
• Fiergolski, A.
• Garcia, F.
• Georgiev, V.
• Giani, S.
• Grzanka, L.
• Guaragnella, C.
• Hammerbauer, J.
• Heino, J.
• Karev, A.
• Kašpar, J.
• Kopal, J.
• Kundrát, V.
• Lami, S.
• Latino, G.
• Lauhakangas, R.
• Linhart, R.
• Lippmaa, E.
• Lippmaa, J.
• Lokajíček, M.V.
• Losurdo, L.
• Lo Vetere, M.
• Lucas Rodríguez, F.
• Macrí, M.
• Mercadante, A.
• Minafra, N.
• Minutoli, S.
• Naaranoja, T.
• Nemes, F.
• Niewiadomski, H.
• Oliveri, E.
• Oljemark, F.
• Orava, R.
• Oriunno, M.
• Österberg, K.
• Palazzi, P.
• Paločko, L.
• Passaro, V.
• Peroutka, Z.
• Petruzzelli, V.
• Politi, T.
• Procházka, J.
• Prudenzano, F.
• Quinto, M.
• Radermacher, E.
• Radicioni, E.
• Ravotti, F.
• Robutti, E.
• Ropelewski, L.
• Ruggiero, G.
• Saarikko, H.
• Scribano, A.
• Smajek, J.
• Snoeys, W.
• Sodzawiczny, T.
• Sziklai, J.
• Taylor, C.
• Turini, N.
• Vacek, V.
• Welti, J.
• Wyszkowski, P.
• Zielinski, K.

Titel

Evidence for non-exponential elastic proton–proton differential cross-section at low |t| and s=8TeV by TOTEM

Ist Teil von

• Nuclear physics. B, 2015-10, Vol.899 (C), p.527-546

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The TOTEM experiment has made a precise measurement of the elastic proton–proton differential cross-section at the centre-of-mass energy s=8 TeV based on a high-statistics data sample obtained with the β⁎=90 m optics. Both the statistical and systematic uncertainties remain below 1%, except for the t-independent contribution from the overall normalisation. This unprecedented precision allows to exclude a purely exponential differential cross-section in the range of four-momentum transfer squared 0.027<|t|<0.2 GeV2 with a significance greater than 7 σ. Two extended parametrisations, with quadratic and cubic polynomials in the exponent, are shown to be well compatible with the data. Using them for the differential cross-section extrapolation to t=0, and further applying the optical theorem, yields total cross-section estimates of (101.5±2.1) mb and (101.9±2.1) mb, respectively, in agreement with previous TOTEM measurements.