C. Pfeifer
Folkwang University of the Arts
4 Papers
10 Citations
C. Pfeifer is an academic researcher from Folkwang University of the Arts. The author has contributed to research in topics: Cosmic ray & Pulsar. The author has an hindex of 3, co-authored 4 publications.
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Papers
Measurements of the absolute energy spectra of cosmic-ray positrons and electrons above 7 GeV
Catia Grimani,S. A. Stephens,F. Cafagna,G. Basini,Roberto Bellotti,Maria Teresa Brunetti,M. Circella,Antonio Codino,C. De Marzo,M. P. De Pascale,N. Finetti,R. L. Golden,M. Hof,W. Menn,John Mitchell,A. Morselli,Jonathan F. Ormes,P. Papini,C. Pfeifer,S. Piccardi,P. Picozza,Marco Ricci,M. Simon,P. Spillantini,Steven Stochaj,R. E. Streitmatter +25 more
TL;DR: A measurement of the energy spectra of cosmic-ray positrons and electrons was made with a balloon-borne magnet- spectrometer, which was flown at a mean geomagnetic cut-off of 4.5 GV/c as discussed by the authors.
Momentum spectra of atmospheric pions, muons, electrons and positrons at balloon altitudes
Antonio Codino,Maria Teresa Brunetti,Costanzo Federico,Catia Grimani,M. Lanfranchi,Mauro Menichelli,M. Miozza,R. L. Golden,S. J. Stochaj,S. A. Stephens,John Mitchell,Jonathan F. Ormes,R. E. Streitmatter,M. Hof,C. Pfeifer,W. Menn,M. Simon,G. Basini,Marco Ricci,F. M. Brancaccio,P. Papini,S. Piccardi,P. Spillantini,M. P. De Pascale,A. Morselli,P. Picozza +25 more
TL;DR: The first measurement of the positive muon spectrum in the range 0:15 GeV c 1 to 2 GeVc 1 is reported in this paper, where the spectral index of the negative muon momentum spectrum is 2:39 0:05 in agreement with analytical cascade calculations which assume a primary proton kinetic energy spectrum with a slope of 2:740:02 in the corresponding kinetic energy range.
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A Measurement of the Proton and Helium Components in the Atmosphere
M. Circella,Maria Teresa Ricci,Roberto Bellotti,P. Spillantini,M. Hof,Mauro Menichelli,R. E. Streitmatter,Antonio Codino,C. De Marzo,J. F. Ormes,G. Basini,A. Morselli,S. Piccardi,M. P. De Pascale,R. L. Golden,Maria Teresa Brunetti,C. Pfeifer,F. Cafagna,P. Papini,F. Massimo Brancaccio,W. Menn,John Mitchell,P. Picozza,S. A. Stephens,M. Simon,Catia Grimani,S. J. Stochaj +26 more
- 06 Jan 2016
TL;DR: In this paper, the authors report on the measurements of the proton and helium components in the atmosphere from the data collected by the MASS apparatus during the ascent of the balloon-borne experiment of 1991.
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Measurement of Cosmic-Ray Antiprotons from 3.7 to 19 GeV
M. Hof,W. Menn,C. Pfeifer,M. Simon,R. L. Golden,Steven Stochaj,S. A. Stephens,G. Basini,Marco Ricci,F. Massimo Brancaccio,P. Papini,S. Piccardi,P. Spillantini,M. P. De Pascale,A. Morselli,P. Picozza,Maria Teresa Brunetti,Antonio Codino,Catia Grimani,Mauro Menichelli,John Mitchell,Jonathan F. Ormes,R. E. Streitmatter +22 more
TL;DR: The antiproton-to-proton ratio in cosmic rays has been measured in the energy range 3.7 −19 GeV as mentioned in this paper, using a balloon-borne superconducting magnetic spectrometer along with a gas Cerenkov counter, an imaging calorimeter and a time-of-flight scintillator system.