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Measurements of All-Particle Energy Spectrum and Mean Logarithmic Mass of Cosmic Rays from 0.3 to 30 PeV with LHAASO-KM2A

We present the measurements of all-particle energy spectrum and mean logarithmic mass of cosmic rays in the energy range of 0.3-30 PeV using data collected from LHAASO-KM2A between September 2021 and December 2022, which is based on a…

High Energy Astrophysical Phenomena · Physics 2024-03-27 The LHAASO Collaboration , Zhen Cao , F. Aharonian , Q. An , A. Axikegu , Y. X. Bai , Y. W. Bao , D. Bastieri , X. J. Bi , Y. J. Bi , J. T. Cai , Q. Cao , W. Y. Cao , Zhe Cao , J. Chang , J. F. Chang , A. M. Chen , E. S. Chen , Liang Chen , Lin Chen , Long Chen , M. J. Chen , M. L. Chen , Q. H. Chen , S. H. Chen , S. Z. Chen , T. L. Chen , Y. Chen , N. Cheng , Y. D. Cheng , M. Y. Cui , S. W. Cui , X. H. Cui , Y. D. Cui , B. Z. Dai , H. L. Dai , Z. G. Dai , Danzengluobu , D. della Volpe , X. Q. Dong , K. K. Duan , J. H. Fan , Y. Z. Fan , J. Fang , K. Fang , C. F. Feng , L. Feng , S. H. Feng , X. T. Feng , Y. L. Feng , S. Gabici , B. Gao , C. D. Gao , L. Q. Gao , Q. Gao , W. Gao , W. K. Gao , M. M. Ge , L. S. Geng , G. Giacinti , G. H. Gong , Q. B. Gou , M. H. Gu , F. L. Guo , X. L. Guo , Y. Q. Guo , Y. Y. Guo , Y. A. Han , H. H. He , H. N. He , J. Y. He , X. B. He , Y. He , M. Heller , Y. K. Hor , B. W. Hou , C. Hou , X. Hou , H. B. Hu , Q. Hu , S. C. Hu , D. H. Huang , T. Q. Huang , W. J. Huang , X. T. Huang , X. Y. Huang , Y. Huang , Z. C. Huang , X. L. Ji , H. Y. Jia , K. Jia , K. Jiang , X. W. Jiang , Z. J. Jiang , M. Jin , M. M. Kang , T. Ke , D. Kuleshov , K. Kurinov , B. B. Li , Cheng Li , Cong Li , D. Li , F. Li , H. B. Li , H. C. Li , H. Y. Li , J. Li , Jian Li , Jie Li , K. Li , W. L. Li , W. L. Li , X. R. Li , Xin Li , Y. Z. Li , Zhe Li , Zhuo Li , E. W. Liang , Y. F. Liang , S. J. Lin , B. Liu , C. Liu , D. Liu , H. Liu , H. D. Liu , J. Liu , J. L. Liu , J. Y. Liu , M. Y. Liu , R. Y. Liu , S. M. Liu , W. Liu , Y. Liu , Y. N. Liu , R. Lu , Q. Luo , H. K. Lv , B. Q. Ma , L. L. Ma , X. H. Ma , J. R. Mao , Z. Min , W. Mitthumsiri , H. J. Mu , Y. C. Nan , A. Neronov , Z. W. Ou , B. Y. Pang , P. Pattarakijwanich , Z. Y. Pei , M. Y. Qi , Y. Q. Qi , B. Q. Qiao , J. J. Qin , D. Ruffolo , A. Sáiz , D. Semikoz , C. Y. Shao , L. Shao , O. Shchegolev , X. D. Sheng , F. W. Shu , H. C. Song , Yu. V. Stenkin , V. Stepanov , Y. Su , Q. N. Sun , X. N. Sun , Z. B. Sun , P. H. T. Tam , Q. W. Tang , Z. B. Tang , W. W. Tian , C. Wang , C. B. Wang , G. W. Wang , H. G. Wang , H. H. Wang , J. C. Wang , K. Wang , L. P. Wang , L. Y. Wang , P. H. Wang , R. Wang , W. Wang , X. G. Wang , X. Y. Wang , Y. Wang , Y. D. Wang , Y. J. Wang , Z. H. Wang , Z. X. Wang , Zhen Wang , Zheng Wang , D. M. Wei , J. J. Wei , Y. J. Wei , T. Wen , C. Y. Wu , H. R. Wu , S. Wu , X. F. Wu , Y. S. Wu , S. Q. Xi , J. Xia , J. J. Xia , G. M. Xiang , D. X. Xiao , G. Xiao , G. G. Xin , Y. L. Xin , Y. Xing , Z. Xiong , D. L. Xu , R. F. Xu , R. X. Xu , W. L. Xu , L. Xue , D. H. Yan , J. Z. Yan , T. Yan , C. W. Yang , F. Yang , F. F. Yang , H. W. Yang , J. Y. Yang , L. L. Yang , M. J. Yang , R. Z. Yang , S. B. Yang , Y. H. Yao , Z. G. Yao , Y. M. Ye , L. Q. Yin , N. Yin , X. H. You , Z. Y. You , Y. H. Yu , Q. Yuan , H. Yue , H. D. Zeng , T. X. Zeng , W. Zeng , M. Zha , B. B. Zhang , F. Zhang , H. M. Zhang , H. Y. Zhang , J. L. Zhang , L. X. Zhang , Li Zhang , P. F. Zhang , P. P. Zhang , R. Zhang , S. B. Zhang , S. R. Zhang , S. S. Zhang , X. Zhang , X. P. Zhang , Y. F. Zhang , Yi Zhang , Yong Zhang , B. Zhao , J. Zhao , L. Zhao , L. Z. Zhao , S. P. Zhao , F. Zheng , B. Zhou , H. Zhou , J. N. Zhou , M. Zhou , P. Zhou , R. Zhou , X. X. Zhou , C. G. Zhu , F. R. Zhu , H. Zhu , K. J. Zhu , X. Zuo

Muon puzzle in ultra-high energy EASs according to Yakutsk array and Auger experiment data

The lateral distribution of particles in extensive air showers from cosmic rays with energy above $10^{17}$ eV registered at the Yakutsk complex array was analyzed. Experimentally measured particle densities were compared to the predictions…

High Energy Astrophysical Phenomena · Physics 2023-06-29 A. V. Glushkov , A. V. Sabourov , L. T. Ksenofontov , K. G. Lebedev

Some consequences for LHC experiments from the results of cosmic ray investigations above the knee

Experimental data obtained in cosmic ray investigations at energies above the knee are discussed. All features observed at these energies starting from the knee, changes of mass composition and concluding with various types of unusual…

High Energy Astrophysical Phenomena · Physics 2011-01-11 A. A. Petrukhin

Strongly Interacting Astrophysical Neutrinos

The origin and chemical composition of ultra high energy cosmic rays is still an open question in astroparticle physics. The observed large-scale isotropy and also direct composition measurements can be interpreted as an extragalactic…

Astrophysics · Physics 2009-11-13 Markus Ahlers

Studying High $p_T$ Muons in Cosmic-Ray Air Showers

Most cosmic-ray air shower arrays have focused on detecting electromagnetic shower particles and low energy muons. A few groups (most notably MACRO + EASTOP and SPASE + AMANDA) have studied the high energy muon component of showers.…

Astrophysics · Physics 2008-11-26 Spencer R. Klein

High-energy atmospheric neutrinos

High-energy neutrinos, arising from decays of mesons that were produced through the cosmic rays collisions with air nuclei, form unavoidable background noise in the astrophysical neutrino detection problem. The atmospheric neutrino flux…

High Energy Astrophysical Phenomena · Physics 2010-10-13 S. I. Sinegovsky , A. A. Kochanov , T. S. Sinegovskaya

Spectra of Cosmic Ray Protons and Helium Produced in Supernova Remnants

Data obtained in the ATIC-2 (Advanced Thin Ionization Calorimeter), CREAM (Cosmic Ray Energetics and Mass)) and PAMELA (Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics) experiments suggest that elemental interstellar…

High Energy Astrophysical Phenomena · Physics 2015-06-12 V. S. Ptuskin , V. N. Zirakashvili , E. S. Seo

Astrophysics of the Knee in the Cosmic Ray Energy Spectrum

A brief review is given on the astrophysics of cosmic rays in the PeV primary energy range, i.e. the region of the knee.

Astrophysics · Physics 2007-05-23 A. Haungs et al.

Multiplicity of TeV muons in extensive air showers detected with IceTop and IceCube

We report on an analysis of the high-energy muon component in near-vertical extensive air showers detected by the surface array IceTop in coincidence with the in-ice array of the IceCube Neutrino Observatory. In the coincidence measurement,…

High Energy Astrophysical Phenomena · Physics 2023-07-28 Stef Verpoest

Cosmic Rays from the Knee to the Ankle

Investigations of the energy spectrum as well as the mass composition of cosmic rays in the energy range of PeVto EeV are important for understanding both, the origin of the galactic and the extragalactic cosmic rays. Recently, three modern…

High Energy Astrophysical Phenomena · Physics 2015-04-09 Andreas Haungs

Spectrum and mass composition of cosmic rays in the energy range 10^15-10^18 eV derived from the Yakutsk array data

A spectrum of cosmic rays within energy range 10^15 - 3x10^17 eV was derived from the data of the small Cherenkov setup, which is a part of the Yakutsk complex EAS array. In this, work a new series of observation is covered. These…

High Energy Astrophysical Phenomena · Physics 2015-06-03 S. P. Knurenko , A. Sabourov

Investigating the 2nd knee: The KASCADE-Grande experiment

Recent results from the multi-detector set-up KASCADE on measurements of cosmic rays in the energy range of the so called "first" knee (at approx. 3 PeV) indicate a distinct knee in the energy spectra of light primary cosmic rays and an…

Astrophysics · Physics 2007-05-23 Grande Collaboration , W. D. Apel , A. F. Badea

Report on the High Energy Phenomena Sessions HE 2, HE 3.2-3.4: Neutrinos and Muons. Interactions, Particle Physics Aspects, Astro-Particle Physics and Cosmology

The results presented at the 28th International Cosmic Ray Conference on neutrino and muon physics are summarized. Neutrinos and muons provide a huge amount of information on particle interactions up to very high energies and on fundamental…

High Energy Physics - Phenomenology · Physics 2007-05-23 Teresa Montaruli

Measurements of cosmic-ray secondary nuclei at high energies with the first flight of the CREAM balloon-borne experiment

We present new measurements of heavy cosmic-ray nuclei at high energies per- formed during the first flight of the balloon-borne cosmic-ray experiment CREAM (Cosmic-Ray Energetics And Mass). This instrument uses multiple charge detectors…

Astrophysics · Physics 2008-10-23 H. S. Ahn , P. S. Allison , M. G. Bagliesi , J. J. Beatty , G. Bigongiari , P. J. Boyle , T. J. Brandt , J. T. Childers , N. B. Conklin , S. Coutu , M. A. Duvernois , O. Ganel , J. H. Han , H. J. Hyun , J. A. Jeon , K. C. Kim , J. K. Lee , M. H. Lee , L. Lutz , P. Maestro , A. Malinin , P. S. Marrocchesi , S. A. Minnick , S. I. Mognet , S. Nam , S. L. Nutter , I. H. Park , N. H. Park , E. S. Seo , R. Sina , S. P. Swordy , S. P. Wakely , J. Wu , J. Yang , Y. S. Yoon , R. Zei , S. Y. Zinn

Studies of the performance of the ATLAS detector using cosmic-ray muons

Muons from cosmic-ray interactions in the atmosphere provide a high-statistics source of particles that can be used to study the performance and calibration of the ATLAS detector. Cosmic-ray muons can penetrate to the cavern and deposit…

Instrumentation and Detectors · Physics 2012-08-27 The ATLAS Collaboration

Spectrum and Charge Ratio of Vertical Cosmic Ray Muons up to Momenta of 2.5 TeV/c

The ALEPH detector at LEP has been used to measure the momentum spectrum and charge ratio of vertical cosmic ray muons underground. The sea-level cosmic ray muon spectrum for momenta up to 2.5 TeV/c has been obtained by correcting for the…

High Energy Physics - Experiment · Physics 2011-10-20 CosmoALEPH Collaboration , M. Schmelling , N. O. Hashim , C. Grupen , S. Luitz , F. Maciuc , A. Mailov , A. -S. Müller , H. -G. Sander , S. Schmeling , R. Tcaciuc , H. Wachsmuth , K. Zuber

From known to unknown: cosmic rays transition from the Sun, the Galaxy, and the Extra-Galaxy

The Sun stands out as the closest and clearest astrophysical accelerator of cosmic rays, while other objects within and beyond the galaxy remain enigmatic. It is probable that the cosmic ray spectrum and mass components from these celestial…

High Energy Astrophysical Phenomena · Physics 2024-03-21 Yu-Hua Yao , Yi-Qing Guo , Wei Liu

Primary spectrum and composition with IceCube/IceTop

IceCube, with its surface array IceTop, detects three different components of extensive air showers: the total signal at the surface, GeV muons in the periphery of the showers and TeV muons in the deep array of IceCube. The spectrum is…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Thomas K. Gaisser

The all-particle spectrum of primary cosmic rays in the wide energy range from 10^14 eV to 10^17 eV observed with the Tibet-III air-shower array

We present an updated all-particle energy spectrum of primary cosmic rays in a wide range from 10^14 eV to 10^17 eV using 5.5 times 10^7 events collected in the period from 2000 November through 2004 October by the Tibet-III air-shower…

High Energy Physics - Experiment · Physics 2019-08-13 M. Amenomori

A new universal cosmic-ray knee near the magnetic rigidity 10 TV with the NUCLEON space observatory

Data from the NUCLEON space observatory give a strong indication of the existence of a new universal cosmic ray "knee", which is observed in all groups of nuclei, including heavy nuclei, near a magnetic rigidity of about 10\,TV.…

High Energy Astrophysical Phenomena · Physics 2018-07-03 E. Atkin , V. Bulatov , V. Dorokhov , N. Gorbunov , S. Filippov , V. Grebenyuk , D. Karmanov , I. Kovalev , I. Kudryashov , A. Kurganov , M. Merkin , A. Panov , D. Podorozhny , D. Polkov , S. Porokhovoy , V. Shumikhin , A. Tkachenko , L. Tkachev , A. Turundaevskiy , O. Vasiliev , A. Voronin