Measurement of the cosmic-ray antiproton-to-proton abundance ratio between 4 and 50 GeV

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

Measurement of the cosmic-ray antiproton-to-proton abundance ratio between 4 and 50 GeV

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

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

Abstract

A study on the measurement of the antiproton-to-proton abundance ratio in the cosmic radiation was performed. The HEAT-pbar instrument, a balloon magnet spectrometer was flown successfully in Spring 2000. It was observed that 71 antiprotons were identified above the vertical geomagnetic cutoff rigidity of 4.2 GV. The antiproton-to-proton ratio was found to be agreed with that expected from a purely secondary origin of antiprotons produced by primary protons with a standard soft energy spectrum.

Original language	English (US)
Article number	271101
Pages (from-to)	2711011-2711014
Number of pages	4
Journal	Physical Review Letters
Volume	87
Issue number	27 I
State	Published - Dec 31 2001

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Cite this

Beach, A. S., Beatty, J. J., Bhattacharyya, A., Bower, C., Coutu, S., Duvernois, M. A., Labrador, A. W., McKee, S., Minnick, S. A., Müller, D., Musser, J., Nutter, S., Schubnell, M., Swordy, S., Tarlé, G., & Tomasch, A. (2001). Measurement of the cosmic-ray antiproton-to-proton abundance ratio between 4 and 50 GeV. Physical Review Letters, 87(27 I), 2711011-2711014. Article 271101.

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title = "Measurement of the cosmic-ray antiproton-to-proton abundance ratio between 4 and 50 GeV",

abstract = "A study on the measurement of the antiproton-to-proton abundance ratio in the cosmic radiation was performed. The HEAT-pbar instrument, a balloon magnet spectrometer was flown successfully in Spring 2000. It was observed that 71 antiprotons were identified above the vertical geomagnetic cutoff rigidity of 4.2 GV. The antiproton-to-proton ratio was found to be agreed with that expected from a purely secondary origin of antiprotons produced by primary protons with a standard soft energy spectrum.",

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

year = "2001",

month = dec,

day = "31",

language = "English (US)",

volume = "87",

pages = "2711011--2711014",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "27 I",

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TY - JOUR

T1 - Measurement of the cosmic-ray antiproton-to-proton abundance ratio between 4 and 50 GeV

AU - Beach, A. S.

AU - Beatty, J. J.

AU - Bhattacharyya, A.

AU - Bower, C.

AU - Coutu, S.

AU - Duvernois, M. A.

AU - Labrador, A. W.

AU - McKee, S.

AU - Minnick, S. A.

AU - Müller, D.

AU - Musser, J.

AU - Nutter, S.

AU - Schubnell, M.

AU - Swordy, S.

AU - Tarlé, G.

AU - Tomasch, A.

PY - 2001/12/31

Y1 - 2001/12/31

N2 - A study on the measurement of the antiproton-to-proton abundance ratio in the cosmic radiation was performed. The HEAT-pbar instrument, a balloon magnet spectrometer was flown successfully in Spring 2000. It was observed that 71 antiprotons were identified above the vertical geomagnetic cutoff rigidity of 4.2 GV. The antiproton-to-proton ratio was found to be agreed with that expected from a purely secondary origin of antiprotons produced by primary protons with a standard soft energy spectrum.

AB - A study on the measurement of the antiproton-to-proton abundance ratio in the cosmic radiation was performed. The HEAT-pbar instrument, a balloon magnet spectrometer was flown successfully in Spring 2000. It was observed that 71 antiprotons were identified above the vertical geomagnetic cutoff rigidity of 4.2 GV. The antiproton-to-proton ratio was found to be agreed with that expected from a purely secondary origin of antiprotons produced by primary protons with a standard soft energy spectrum.

UR - https://www.scopus.com/pages/publications/0035981002

UR - https://www.scopus.com/pages/publications/0035981002#tab=citedBy

M3 - Article

AN - SCOPUS:0035981002

SN - 0031-9007

VL - 87

SP - 2711011

EP - 2711014

JO - Physical Review Letters

JF - Physical Review Letters

IS - 27 I

M1 - 271101

ER -

Measurement of the cosmic-ray antiproton-to-proton abundance ratio between 4 and 50 GeV

Abstract

All Science Journal Classification (ASJC) codes

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