Abstract

TOTEM has measured the differential cross-section for elastic proton-proton scattering at the LHC energy of root s = 7 TeV analysing data from a short run with dedicated large-beta* optics. A single exponential fit with a slope B = (20.1 +/- 0.2(stat) +/- 0.3(syst)) GeV(-2) describes the range of the four-momentum transfer squared vertical bar t vertical bar from 0.02 to 0.33 GeV(2). After the extrapolation to vertical bar t vertical bar = 0, a total elastic scattering cross-section of (24.8 +/- 0.2(stat) +/- 1.2(syst)) mb was obtained. Applying the optical theorem and using the luminosity measurement from CMS, a total proton-proton cross-section of (98.3 +/- 0.2(stat) +/- 2.8(syst)) mb was deduced which is in good agreement with the expectation from the overall fit of previously measured data over a large range of center-of-mass energies. From the total and elastic pp cross-section measurements, an inelastic pp cross-section of (73.5 +/- 0.6(stat) (+1.8)(-1.3) (syst)) mb was inferred.

Autore Pugliese

• Berardi Vincenzo

Tutti gli autori

• Antchev G , Aspell P , Atanassov I , Avati V , Baechler J , Berardi V , Berretti M , Bossini E , Bozzo M , Brogi P , Brucken E , Buzzo A , Cafagna FS , Calicchio M , Catanesi MG , Covault C , Csorgo T , Deile M , Eggert K , Eremin V , Ferretti R , Ferro F , Fiergolski A , Garcia F , Giani S , Greco V , Grzanka L , Heino J , Hilden T , Intonti MR , Kaspar J , Kopal J , Kundrat V , Kurvinen K , Lami S , Latino G , Lauhakangas R , Leszko T , Lippmaa E , Lokajicek M , Lo Vetere M , Rodriguez FL , Macri M , Magaletti L , Mercadante A , 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 , Sanguinetti G , Santroni A , Scribano A , Snoeys W , Sziklai J , Taylor C , Turini N , Vacek V , Vitek M , Welti J , Whitmore J

Titolo volume/Rivista

EUROPHYSICS LETTERS

Anno di pubblicazione

2011

ISSN

0295-5075

ISBN

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Numero di citazioni Wos

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