Shape of primary proton spectrum in multi-TeV region from data on vertical muon flux

Yushkov, A V; Lagutin, A A

doi:10.1103/PHYSREVD.78.116001

Title: Shape of primary proton spectrum in multi-TeV region from data on vertical muon flux

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Abstract

It is shown that the primary proton spectrum, reconstructed from sea-level and underground data on muon spectrum with the use of QGSJET 01, QGSJET II, NEXUS 3.97, and SIBYLL 2.1 interaction models, demonstrates not only model-dependent intensity, but also a model-dependent form. For correct reproduction of muon spectrum shape the primary proton flux should have a nonconstant power index for all considered models, except SIBYLL 2.1, with break at energies around 10-15 TeV and a value of exponent before break close to that obtained in the ATIC-2 experiment. To validate the presence of this break, understanding of inclusive spectra behavior in the fragmentation region in p-air collisions should be improved, but we show that is impossible to do on the basis of the existing experimental data on primary nuclei, atmospheric muon, and hadron fluxes.

Authors:

Yushkov, A V; Lagutin, A A ^[1]

Sezione INFN di Napoli, I-80126, Napoli, via Cintia (Italy)

Publication Date:: Mon Dec 01 00:00:00 EST 2008

OSTI Identifier:: 21251049

Resource Type:: Journal Article

Journal Name:: Physical Review. D, Particles Fields

Additional Journal Information:: Journal Volume: 78; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.78.116001; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COLLISIONS; FRAGMENTATION; INTERACTIONS; MUONS; NUCLEI; PROTON SPECTRA; REPRODUCTION; SIMULATION; TEV RANGE 01-10

Citation Formats


                    Yushkov, A V, Lagutin, A A, and Altai State University, 656049, Barnaul, Lenin prospect. Shape of primary proton spectrum in multi-TeV region from data on vertical muon flux.  United States: N. p., 2008. 
        Web.  doi:10.1103/PHYSREVD.78.116001.

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                    Yushkov, A V, Lagutin, A A, & Altai State University, 656049, Barnaul, Lenin prospect. Shape of primary proton spectrum in multi-TeV region from data on vertical muon flux.  United States.  https://doi.org/10.1103/PHYSREVD.78.116001

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                    Yushkov, A V, Lagutin, A A, and Altai State University, 656049, Barnaul, Lenin prospect. 2008.  
        "Shape of primary proton spectrum in multi-TeV region from data on vertical muon flux".  United States.  https://doi.org/10.1103/PHYSREVD.78.116001.

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@article{osti_21251049,

  title        = {Shape of primary proton spectrum in multi-TeV region from data on vertical muon flux},

  author       = {Yushkov, A V and Lagutin, A A and Altai State University, 656049, Barnaul, Lenin prospect},

  abstractNote = {It is shown that the primary proton spectrum, reconstructed from sea-level and underground data on muon spectrum with the use of QGSJET 01, QGSJET II, NEXUS 3.97, and SIBYLL 2.1 interaction models, demonstrates not only model-dependent intensity, but also a model-dependent form. For correct reproduction of muon spectrum shape the primary proton flux should have a nonconstant power index for all considered models, except SIBYLL 2.1, with break at energies around 10-15 TeV and a value of exponent before break close to that obtained in the ATIC-2 experiment. To validate the presence of this break, understanding of inclusive spectra behavior in the fragmentation region in p-air collisions should be improved, but we show that is impossible to do on the basis of the existing experimental data on primary nuclei, atmospheric muon, and hadron fluxes.},

  doi          = {10.1103/PHYSREVD.78.116001},

  url          = {https://www.osti.gov/biblio/21251049},
  journal      = {Physical Review. D, Particles Fields},

  issn         = {0556-2821},

  number       = 11,

  volume       = 78,

  place        = {United States},

  year         = {Mon Dec 01 00:00:00 EST 2008},

  month        = {Mon Dec 01 00:00:00 EST 2008}

}

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