Change search

Measurement of the Inelastic Proton-Proton Cross-Section at $\sqrt{s}=7$ TeV with the ATLAS Detector
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Stockholm University, Faculty of Science, Department of Physics.
2011 (English)In: Nature Communications, ISSN 2041-1723, Vol. 2, 463- p.Article in journal (Refereed) Published
##### Abstract [en]

The dependence of the rate of proton-proton interactions on the centre-of-mass collision energy, root s, is of fundamental importance for both hadron collider physics and particle astrophysics. The dependence cannot yet be calculated from first principles; therefore, experimental measurements are needed. Here we present the first measurement of the inelastic proton-proton interaction cross-section at a centre-of-mass energy, root s, of 7 TeV using the ATLAS detector at the Large Hadron Collider. Events are selected by requiring hits on scintillation counters mounted in the forward region of the detector. An inelastic crosssection of 60.3 +/- 2.1 mb is measured for xi > 5x10(-6), where xi is calculated from the invariant mass, M(X), of hadrons selected using the largest rapidity gap in the event. For diffractive events, this corresponds to requiring at least one of the dissociation masses to be larger than 15.7 GeV.

##### Place, publisher, year, edition, pages
2011. Vol. 2, 463- p.
##### National Category
Subatomic Physics
Physics
##### Identifiers
ISI: 000294807200005OAI: oai:DiVA.org:su-63097DiVA: diva2:446684
Atlas
##### Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
##### Note
Publikationen har totalt 3053 författare, G. Aad et al.Available from: 2011-10-08 Created: 2011-10-08 Last updated: 2012-01-26Bibliographically approved

#### Open Access in DiVA

No full text

Publisher's full text

#### Search in DiVA

##### By author/editor
Åsman, BarbroBohm, ChristianClément, ChristopheEriksson, DanielGellerstedt, KarlHellman, StenHidvégi, AttilaHolmgren, Sven-OlofJohansen, MarianneJohansson, ErikJon-And, KerstinLundberg, JohanMilstead, DavidMoa, TorbjörnNordkvist, BjörnOhm, ChristianPapadelis, ArasSelldén, BjörnSilverstein, SamuelSjölin, JörgenStrandberg, SaraTylmad, MajaYang, Zhaoyu
##### By organisation
Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)
##### In the same journal
Nature Communications
##### On the subject
Subatomic Physics