New measurement of the cosmic-ray positron fraction from 5 to 15 GeV

J. J. Beatty; A. Bhattacharyya; C. Bower; S. Coutu; M. A. Duvernois; S. McKee; S. A. Minnick; D. Müller; J. Musser; S. Nutter; A. W. Labrador; M. Schubnell; S. Swordy; G. Tarlé; A. Tomasch

doi:10.1103/PhysRevLett.93.241102

New measurement of the cosmic-ray positron fraction from 5 to 15 GeV

J. J. Beatty
, A. Bhattacharyya
, C. Bower
, S. Coutu
, M. A. Duvernois
, S. McKee
, S. A. Minnick
, D. Müller
, J. Musser
, S. Nutter
, A. W. Labrador
, M. Schubnell
, S. Swordy
, G. Tarlé
, A. Tomasch

Research output: Contribution to journal › Article › peer-review

243 Scopus citations

Abstract

A new measurement of the cosmic-ray positron fraction at energies between 5 and 15 Gev was performed. The combined data from the three HEAT flights indicate a small positron flux of nonstandard origin above 5 GeV. A new version of the HEAT instrument, HEAT-polar was also designed to observe the high-energy cosmic-ray anti-proton flux. It is observed that a primary contribution to the positron intensity above a few GeV can still not be ruled out.

Original language	English (US)
Article number	241102
Journal	Physical review letters
Volume	93
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.93.241102
State	Published - Dec 10 2004

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.93.241102

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Beatty, J. J., Bhattacharyya, A., Bower, C., Coutu, S., Duvernois, M. A., McKee, S., Minnick, S. A., Müller, D., Musser, J., Nutter, S., Labrador, A. W., Schubnell, M., Swordy, S., Tarlé, G., & Tomasch, A. (2004). New measurement of the cosmic-ray positron fraction from 5 to 15 GeV. Physical review letters, 93(24), Article 241102. https://doi.org/10.1103/PhysRevLett.93.241102

@article{0f696b8816874287be22e7b28fa5684b,

title = "New measurement of the cosmic-ray positron fraction from 5 to 15 GeV",

abstract = "A new measurement of the cosmic-ray positron fraction at energies between 5 and 15 Gev was performed. The combined data from the three HEAT flights indicate a small positron flux of nonstandard origin above 5 GeV. A new version of the HEAT instrument, HEAT-polar was also designed to observe the high-energy cosmic-ray anti-proton flux. It is observed that a primary contribution to the positron intensity above a few GeV can still not be ruled out.",

author = "Beatty, \{J. J.\} and A. Bhattacharyya and C. Bower and S. Coutu and Duvernois, \{M. A.\} and S. McKee and Minnick, \{S. A.\} and D. M{\"u}ller and J. Musser and S. Nutter and Labrador, \{A. W.\} and M. Schubnell and S. Swordy and G. Tarl{\'e} and A. Tomasch",

note = "Funding Information: This work was supported by NASA Grants No. NAG 5-5058, No. NAG 5-5220, No. NAG 5-5223, and No. NAG 5-5230. We wish to thank the National Scientific Balloon Facility and the NSBF launch crews for their excellent support of balloon missions and we gratefully acknowledge contributions from D. Kouba, M. Gebhard, S. Ahmed, and P. Allison. We also thank S. Beach for essential support of the mission.",

year = "2004",

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doi = "10.1103/PhysRevLett.93.241102",

language = "English (US)",

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TY - JOUR

T1 - New measurement of the cosmic-ray positron fraction from 5 to 15 GeV

AU - Beatty, J. J.

AU - Bhattacharyya, A.

AU - Bower, C.

AU - Coutu, S.

AU - Duvernois, M. A.

AU - McKee, S.

AU - Minnick, S. A.

AU - Müller, D.

AU - Musser, J.

AU - Nutter, S.

AU - Labrador, A. W.

AU - Schubnell, M.

AU - Swordy, S.

AU - Tarlé, G.

AU - Tomasch, A.

N1 - Funding Information: This work was supported by NASA Grants No. NAG 5-5058, No. NAG 5-5220, No. NAG 5-5223, and No. NAG 5-5230. We wish to thank the National Scientific Balloon Facility and the NSBF launch crews for their excellent support of balloon missions and we gratefully acknowledge contributions from D. Kouba, M. Gebhard, S. Ahmed, and P. Allison. We also thank S. Beach for essential support of the mission.

PY - 2004/12/10

Y1 - 2004/12/10

N2 - A new measurement of the cosmic-ray positron fraction at energies between 5 and 15 Gev was performed. The combined data from the three HEAT flights indicate a small positron flux of nonstandard origin above 5 GeV. A new version of the HEAT instrument, HEAT-polar was also designed to observe the high-energy cosmic-ray anti-proton flux. It is observed that a primary contribution to the positron intensity above a few GeV can still not be ruled out.

AB - A new measurement of the cosmic-ray positron fraction at energies between 5 and 15 Gev was performed. The combined data from the three HEAT flights indicate a small positron flux of nonstandard origin above 5 GeV. A new version of the HEAT instrument, HEAT-polar was also designed to observe the high-energy cosmic-ray anti-proton flux. It is observed that a primary contribution to the positron intensity above a few GeV can still not be ruled out.

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UR - https://www.scopus.com/pages/publications/37649030285#tab=citedBy

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DO - 10.1103/PhysRevLett.93.241102

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JO - Physical review letters

JF - Physical review letters

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M1 - 241102

ER -

New measurement of the cosmic-ray positron fraction from 5 to 15 GeV

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