Double Diffractive Cross-Section Measurement in the Forward Region at the LHC

Antchev, G; Aspell, P; Atanassov, I; Avati, V; Baechler, J; Berardi, Vincenzo; Berretti, M; Bossini, E; Bottigli, U; Bozzo, M; Bruecken, E; Buzzo, A; Cafagna, F. S.; Catanesi, M. G.; Covault, C; Csanad, M; Csoergo, T; Deile, M; Eggert, K; Eremin, V; Ferro, F; Fiergolski, A; Garcia, F; Giani, S; Greco, V; Grzanka, L; Heino, J; Hilden, T; Karev, A; Kaspar, J; Kopal, J; Kundrat, V; Kurvinen, K; Lami, S; Latino, G; Lauhakangas, R; Leszko, T; Lippmaa, E; Lippmaa, J; Lokajicek, M; Losurdo, L; Lo Vetere, M; Lucas Rodriguez, F; Macri, M; Maki, T; Mercadante, A; Minafra, N; Minutoli, S; Nemes, F; Niewiadomski, H; Oliveri, E; Oljemark, F; Orava, R; Oriunno, M; Osterberg, K; Palazzi, P; Prochazka, J; Quinto, M; Radermacher, E; Radicioni, E; Ravotti, F; Robutti, E; Ropelewski, L; Ruggiero, G; Saarikko, H; Scribano, A; Smajek, J; Snoeys, W; Sziklai, J; Taylor, C; Turini, N; Vacek, V; Vitek, M; Welti, J; Whitmore, J; Wyszkowski, P.

doi:10.1103/PhysRevLett.111.262001

The first double diffractive cross-section measurement in the very forward region has been carried out by the TOTEM experiment at the LHC with a center-of-mass energy of root s = 7 TeV. By utilizing the very forward TOTEM tracking detectors T1 and T2, which extend up to vertical bar eta vertical bar = 6.5, a clean sample of double diffractive pp events was extracted. From these events, we determined the cross section sigma(DD) = (116 +/- 25) mu b for events where both diffractive systems have 4.7 < vertical bar eta vertical bar(min) < 6.5.

Double Diffractive Cross-Section Measurement in the Forward Region at the LHC / Antchev, G; Aspell, P; Atanassov, I; Avati, V; Baechler, J; Berardi, Vincenzo; Berretti, M; Bossini, E; Bottigli, U; Bozzo, M; Bruecken, E; Buzzo, A; Cafagna, F. S.; Catanesi, M. G.; Covault, C; Csanad, M; Csoergo, T; Deile, M; Eggert, K; Eremin, V; Ferro, F; Fiergolski, A; Garcia, F; Giani, S; Greco, V; Grzanka, L; Heino, J; Hilden, T; Karev, A; Kaspar, J; Kopal, J; Kundrat, V; Kurvinen, K; Lami, S; Latino, G; Lauhakangas, R; Leszko, T; Lippmaa, E; Lippmaa, J; Lokajicek, M; Losurdo, L; Lo Vetere, M; Lucas Rodriguez, F; Macri, M; Maki, T; Mercadante, A; Minafra, N; Minutoli, S; Nemes, F; Niewiadomski, H; Oliveri, E; Oljemark, F; Orava, R; Oriunno, M; Osterberg, K; Palazzi, P; Prochazka, J; Quinto, M; Radermacher, E; Radicioni, E; Ravotti, F; Robutti, E; Ropelewski, L; Ruggiero, G; Saarikko, H; Scribano, A; Smajek, J; Snoeys, W; Sziklai, J; Taylor, C; Turini, N; Vacek, V; Vitek, M; Welti, J; Whitmore, J; Wyszkowski, P.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 111:26(2013). [10.1103/PhysRevLett.111.262001]