Double Diffractive Cross-Section Measurement In The Forward Region At The Lhc

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

Physical review letters（2013）

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摘要

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.

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关键词

lhc,forward region,cross-section

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