Lateral distribution of muons in IceCube cosmic ray events

6533b7d9fe1ef96bd126ba28

RESEARCH PRODUCT

Lateral distribution of muons in IceCube cosmic ray events

I Collaboration R Abbasi Y Abdou M Ackermann J Adams Ja Aguilar M Ahlers D Altmann K Andeen J Auffenberg X Bai M Baker Sw Barwick V Baum R Bay K Beattie Jj Beatty S Bechet Jb Tjus Kh Becker M Bell Ml Benabderrahmane S Benzvi J Berdermann P Berghaus D Berley E Bernardini D Bertrand Dz Besson D Bindig M Bissok E Blaufuss J Blumenthal Dj Boersma C Bohm D Bose S Böser O Botner L Brayeur Am Brown R Bruijn J Brunner S Buitink M Carson J Casey M Casier D Chirkin B Christy F Clevermann S Cohen Df Cowen Ahc Silva M Danninger J Daughhetee Jc Davis Cd Clercq F Descamps P Desiati Gd Vries-uiterweerd T Deyoung Jc Díaz-vélez J Dreyer Jp Dumm M Dunkman R Eagan J Eisch C Elliott Rw Ellsworth O Engdegård S Euler Pa Evenson O Fadiran Ar Fazely A Fedynitch J Feintzeig T Feusels K Filimonov C Finley T Fischer-wasels S Flis A Franckowiak R Franke K Frantzen T Fuchs Tk Gaisser J Gallagher L Gerhardt L Gladstone T Glüsenkamp A Goldschmidt Ja Goodman D Góra D Grant A Groß S Grullon M Gurtner C Ha Ah Ismail A Hallgren F Halzen K Hanson D Heereman P Heimann D Heinen K Helbing R Hellauer S Hickford Gc Hill Kd Hoffman R Hoffmann A Homeier K Hoshina W Huelsnitz Po Hulth K Hultqvist S Hussain A Ishihara E Jacobi J Jacobsen Gs Japaridze O Jlelati A Kappes T Karg A Karle J Kiryluk F Kislat J Kläs Sr Klein S Klepser Jh Köhne G Kohnen H Kolanoski L Köpke C Kopper S Kopper Dj Koskinen M Kowalski M Krasberg G Kroll J Kunnen N Kurahashi T Kuwabara M Labare K Laihem H Landsman Mj Larson R Lauer M Lesiak-bzdak J Lünemann J Madsen R Maruyama K Mase Hs Matis A Mcdermott F Mcnally K Meagher M Merck P Mészáros T Meures S Miarecki E Middell N Milke J Miller L Mohrmann T Montaruli R Morse Sm Movit R Nahnhauer U Naumann P Nießen Sc Nowicki Dr Nygren A Obertacke S Odrowski A Olivas M Olivo A O'murchadha S Panknin L Paul Ja Pepper Cpdl Heros D Pieloth N Pirk J Posselt Pb Price Gt Przybylski L Rädel K Rawlins P Redl E Resconi W Rhode M Ribordy M Richman B Riedel Jp Rodrigues J Roth F Rothmaier C Rott C Roucelle T Ruhe B Ruzybayev D Ryckbosch Sm Saba T Salameh Hg Sander M Santander S Sarkar K Schatto M Scheel F Scheriau T Schmidt M Schmitz S Schoenen S Schöneberg L Schönherr A Schönwald A Schukraft L Schulte O Schulz D Seckel Sh Seo Y Sestayo S Seunarine L Shulman Mwe Smith M Soiron D Soldin Gm Spiczak C Spiering M Stamatikos T Stanev A Stasik T Stezelberger Rg Stokstad A Stößl S Stoyanov Ea Strahler R Ström Kh Sulanke Gw Sullivan H Taavola I Taboada A Tamburro S Ter-antonyan S Tilav Pa Toale S Toscano M Usner Dvd Drift Nv Eijndhoven Av Overloop Jv Santen M Vehring M Voge C Walck T Waldenmaier M Wallraff M Walter R Wasserman C Weaver C Wendt S Westerhoff N Whitehorn K Wiebe Ch Wiebusch Dr Williams H Wissing M Wolf Tr Wood K Woschnagg C Xu Dl Xu Xw Xu Jp Yanez G Yodh S Yoshida P Zarzhitsky J Ziemann A Zilles M Zoll

subject

Nuclear and High Energy Physics ENERGIES Physics::Instrumentation and Detectors Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Cosmic ray Astrophysics ddc:500.2 01 natural sciences 7. Clean energy Power law IceCube High Energy Physics - Experiment High Energy Physics - Experiment (hep-ex)0103 physical sciences cosmic radiation : interaction ddc:530 Charm (quantum number)Ultra-high-energy cosmic ray 010306 general physics Zenith Physics Quantum chromodynamics High Energy Astrophysical Phenomena (astro-ph.HE)Muon 010308 nuclear & particles physics Astrophysics::Instrumentation and Methods for Astrophysics Gluon MODEL Physics and Astronomy 13. Climate action TEV High Energy Physics::Experiment GLUON Astrophysics - High Energy Astrophysical Phenomena

description

In cosmic ray air showers, the muon lateral separation from the center of the shower is a measure of the transverse momentum that the muon parent acquired in the cosmic ray interaction. IceCube has observed cosmic ray interactions that produce muons laterally separated by up to 400 m from the shower core, a factor of 6 larger distance than previous measurements. These muons originate in high pT (>2 GeV/c) interactions from the incident cosmic ray, or high-energy secondary interactions. The separation distribution shows a transition to a power law at large values, indicating the presence of a hard pT component that can be described by perturbative quantum chromodynamics. However, the rates and the zenith angle distributions of these events are not well reproduced with the cosmic ray models tested here, even those that include charm interactions. This discrepancy may be explained by a larger fraction of kaons and charmed particles than is currently incorporated in the simulations.

year	journal	country	edition	language
2013-01-07

10.1103/physrevd.87.012005 http://hdl.handle.net/11577/3310550