Pion production via proton synchrotron radiation in strong magnetic fields in relativistic field theory: Scaling relations and angular distributions

Maruyama, Tomoyuki; Cheoun, Myung-Ki; Kajino, Toshitaka; Mathews, Grant J.

doi:10.1016/j.physletb.2016.03.065

Title: Pion production via proton synchrotron radiation in strong magnetic fields in relativistic field theory: Scaling relations and angular distributions

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Abstract

We study pion production by proton synchrotron radiation in the presence of a strong magnetic field when the Landau numbers of the initial and final protons are n(i, f) similar to 10(4)-10(5). We find in our relativistic field theory calculations that the pion decay width depends only on the field strength parameter which previously was only conjectured based upon semi-classical arguments. Moreover, we also find new results that the decay width satisfies a robust scaling relation, and that the polar angular distribution of emitted pion momenta is very narrow and can be easily obtained. This scaling implies that one can infer the decay width in more realistic magnetic fields of 10(15) G, where n(i, f) similar to 10(12)-10(13), from the results for n(i, f) similar to 10(4)-10(5). The resultant pion intensity and angular distributions for realistic magnetic field strengths are presented and their physical implications discussed. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).

Authors:

; Cheoun, Myung-Ki; Kajino, Toshitaka; Mathews, Grant J.

Publication Date:: Wed Jun 01 00:00:00 EDT 2016

Research Org.:: Univ. of Notre Dame, IN (United States)

Sponsoring Org.:: USDOE; National Research Foundation of Korea (NRF); JSPS of the Ministry of Education, Culture, Sports, Science and Technology of Japan

OSTI Identifier:: 1556150

Alternate Identifier(s):: OSTI ID: 1280657

Grant/Contract Number:: FG02-95-ER40934; FG02-95ER40934

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Name: Physics Letters B Journal Volume: 757 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; gamma-ray bursts; tev emission; energy; constraints; collapsars; galaxy

Citation Formats


                    Maruyama, Tomoyuki, Cheoun, Myung-Ki, Kajino, Toshitaka, and Mathews, Grant J. Pion production via proton synchrotron radiation in strong magnetic fields in relativistic field theory: Scaling relations and angular distributions.  Netherlands: N. p., 2016. 
Web.  doi:10.1016/j.physletb.2016.03.065.

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                    Maruyama, Tomoyuki, Cheoun, Myung-Ki, Kajino, Toshitaka, & Mathews, Grant J. Pion production via proton synchrotron radiation in strong magnetic fields in relativistic field theory: Scaling relations and angular distributions.  Netherlands.  https://doi.org/10.1016/j.physletb.2016.03.065

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                    Maruyama, Tomoyuki, Cheoun, Myung-Ki, Kajino, Toshitaka, and Mathews, Grant J. Wed .  
"Pion production via proton synchrotron radiation in strong magnetic fields in relativistic field theory: Scaling relations and angular distributions".  Netherlands.  https://doi.org/10.1016/j.physletb.2016.03.065.

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@article{osti_1556150,

  title        = {Pion production via proton synchrotron radiation in strong magnetic fields in relativistic field theory: Scaling relations and angular distributions},

  author       = {Maruyama, Tomoyuki and Cheoun, Myung-Ki and Kajino, Toshitaka and Mathews, Grant J.},

  abstractNote = {We study pion production by proton synchrotron radiation in the presence of a strong magnetic field when the Landau numbers of the initial and final protons are n(i, f) similar to 10(4)-10(5). We find in our relativistic field theory calculations that the pion decay width depends only on the field strength parameter which previously was only conjectured based upon semi-classical arguments. Moreover, we also find new results that the decay width satisfies a robust scaling relation, and that the polar angular distribution of emitted pion momenta is very narrow and can be easily obtained. This scaling implies that one can infer the decay width in more realistic magnetic fields of 10(15) G, where n(i, f) similar to 10(12)-10(13), from the results for n(i, f) similar to 10(4)-10(5). The resultant pion intensity and angular distributions for realistic magnetic field strengths are presented and their physical implications discussed. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).},

  doi          = {10.1016/j.physletb.2016.03.065},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 757,

  place        = {Netherlands},

  year         = {Wed Jun 01 00:00:00 EDT 2016},

  month        = {Wed Jun 01 00:00:00 EDT 2016}

}

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