6533b85efe1ef96bd12bff33

RESEARCH PRODUCT

Proton-air cross section measurement with the ARGO-YBJ cosmic ray experiment

I. De MitriB. D'ettorre PiazzoliA. K. Calabrese MelcarneP. PistilliH. M. ZhangG. MarsellaX. X. ZhouEnrico RossiGiovanni MancarellaL. XueF. GaleazziP. GaleottiC. LiuJilong ZhangG. D'alí StaitiP. VallaniaA. SurdoX. X. LiQ. HuangGiulio AielliHong-peng LuX. H. MaLongzhou ZhangQ. Q. ZhuC. BacciG. LiguoriHaibing HuM. Y. LiuA. PagliaroA. F. YuanZhenyong FengHuaguang WangC. BlevePaolo CamarriY. ZhangB. BartoliX. D. ShengFudong ShiQ. Y. YangN. ChengX. R. MengG. ZizziD. MartelloJ. K. K. LiuC. CattaneoJ. Y. LiR. GarganaDanzengluobuLabacirenS. MastroianniR. SantonicoM. IacovacciChang-chun NingB. S. WangS. M. MariX. Y. ZhangL. PerroneZhaxisangzhuZhaoyang FengY. Q. GuoJianli ZhangP. CretiZihuang CaoF. RuggieriA. CappaCarlo VigoritoY. X. YanAntonio BudanoS. W. CuiC. Y. WuBarbara LibertiX. B. QuC. Q. LiuX. C. YangP. SalviniX. H. DingL. SaggeseP. F. ZhangX. J. BiIrina JamesRoberto CardarelliP. BernardiniS. Z. ChenY. H. TanF. R. ZhuPaolo MontiniR. IuppaS. CatalanottiM. PanareoG. Di SciascioT. Di GirolamoP. CelioH.h. HeM. DattoliM. De VincenziY. B. ChenHongbo HuC. F. FengH. Y. JiaH. J. LiS. VernettoH. R. WuP. R. ShenM. ZhaB. Z. DaiCristian StanescuP. BranchiniBingwei XuSeverino Angelo Maria BussinoQ. B. Gou

subject

Nuclear and High Energy PhysicsCosmic rays Proton-air cross section gamma astronomyProtonAstrophysics::High Energy Astrophysical PhenomenaHadronCosmic rayCross Section01 natural sciencesCosmic RayHigh Energy Physics - ExperimentNuclear physics0103 physical sciencesMultiplicity (chemistry)010306 general physicsNuclear ExperimentZenithArgoPhysics010308 nuclear & particles physicsAttenuationDetectorSettore FIS/01 - Fisica SperimentaleAstrophysics::Instrumentation and Methods for Astrophysics3. Good healthHadronic InteractionHigh Energy Physics::ExperimentExtensive Air Showers

description

The proton-air cross section in the energy range 1-100 TeV has been measured by the ARGO-YBJ cosmic ray experiment. The analysis is based on the flux attenuation for different atmospheric depths (i.e. zenith angles) and exploits the detector capabilities of selecting the shower development stage by means of hit multiplicity, density and lateral profile measurements at ground. The effects of shower fluctuations, the contribution of heavier primaries and the uncertainties of the hadronic interaction models, have been taken into account. The results have been used to estimate the total proton-proton cross section at center of mass energies between 70 and 500 GeV, where no accelerator data are currently available.

10.1103/physrevd.80.092004http://arxiv.org/abs/0904.4198