Measurement of the cosmic-ray low-energy antiproton spectrum with the first BESS-Polar Antarctic flight

Abe, K.; Fuke, H.; Haino, S.; Hams, T.; Itazaki, A.; Kim, K.C.; Kumazawa, T.; Lee, Moo Hyun; Makida, Y.; Matsuda, Shinya; Matsumoto, K.; Mitchell, J. W.; Моисеев, А. А.; Myers, Z.; Nishimura, Jun; Nozaki, M.; Orito, R.; Ormes, J. F.; Sasaki, M.; Seo, E. S.; Shikaze, Y.; Streitmatter, R. E.; Suzuki, Jun–ichi; Takasugi, Y.; Takeuchi, Kei; Tanaka, Kenichi; Yamagami, T.; Yamamoto, A.; Yoshida, Tetsuya; Yoshimura, K.

doi:10.1016/j.physletb.2008.10.053

Cited by 88 publications

(69 citation statements)

References 38 publications

(74 reference statements)

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“…A recent work has been done to calculate the upper limit of the enhancements [78], which derive a boost factor less than 6 for WIMPs with a mass 100 GeV, and a factor no more than 40 for WIMPs with a mass 1 TeV. [40] (and references therein) [42] and [43] …”

Section: Resultsmentioning

confidence: 99%

“…Compared to all previous experiments, PAMELA significantly increases the statistics and extends the measured energy to ∼180 GeV. [38], BESS1999 and BESS2000 [41], BESS1998 [42], BESS-polar04 [43], and other experiments (see [40] and references therein)). The lines show the models of purely secondary antiproton production [44].…”

Section: Cr Antiprotonsmentioning

confidence: 97%

“…43 Tesla permanent magnet spectrometer (tracker) equipped with 6 planes of double-sided silicon detectors, allowing the sign, absolute value of charge and momentum of traversing charged particles to be determined. The spectrometer geometry and dimensions define the overall acceptance of the experiment which is 21.5 cm 2 sr.…”

Section: The Detectorsmentioning

confidence: 99%

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Measurements of cosmic-ray antiprotons with PAMELA

2011

Astrophys. Space Sci. Trans.

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The PAMELA experiment is a satellite-borne apparatus designed to study charged particles, and especially antiparticles, in the cosmic radiation. The apparatus is mounted on the Resurs DK1 satellite which was launched on 15 June 2006. PAMELA has been traveling around the earth along an elliptical and semi-polar orbit for almost five years. It mainly consists of a permanent magnetic spectrometer, a time of flight system and an electromagnetic imaging calorimeter, which allows antiprotons to be identified from a dominating cosmic-ray background. New measurements of the cosmic-ray antiproton flux and the antiproton-to-proton flux ratio between 60 MeV and 180 GeV are presented, employing data collected between June 2006 and December 2008. Compared to previous experiments, PAMELA extends the energy range of antiproton measurements and provides significantly higher statistics. The derived antiproton flux and antiproton-to-proton flux ratio indicates that the main source of cosmic-ray antiprotons is considered to be secondary production and no primary contribution has to be invoked.on behalf of PAMELA collaboration.QC 2012021

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Section: Resultsmentioning

confidence: 99%

Section: Cr Antiprotonsmentioning

confidence: 97%

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Measurements of cosmic-ray antiprotons with PAMELA

2011

Astrophys. Space Sci. Trans.

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“…Annihilation of exotic particles postulated to explain dark matter is among other explanations proposed. The Balloon Experiment with a Superconducting Spectrometer (BESS) has conducted a negative search for annihilation signatures of dark matter in the antiproton channel (Abe et al 2008). The electron excess in ATIC and lack of excess antiprotons in BESS provide interesting constraints on dark matter models.…”

Section: W Vernon Jonesmentioning

confidence: 99%

The US Long Duration Balloon Facility at McMurdo Station

Jones¹

2012

Proc. IAU

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Abstract.A sea change in scientific ballooning occurred with the inauguration of 8-20-day flights around Antarctica in the early 1990's. The attainment of 28-31-day flights and 35-42-day flights, respectively, in two and three circumnavigations of the continent has greatly increased the expectations of scientific users. There is a scientific need for the capability to provide similar-duration flights for investigations that cannot be done in the Polar Regions. A new super-pressure balloon is currently under development for future flights of 60-100 days at any latitude. This first new balloon in more than half a century would meet this need and allow the focus to change from increasing the durations of flights over and around Antarctica to ultra-long-duration flights from Antarctica.

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“…The design concept of the BESS Polar-II payload is basically same as that of the BESS Polar-I spectrometer [12][13] (Fig. 3).…”

Section: Bess Polar-ii Payloadmentioning

confidence: 99%

The 2007 BESS-Polar Scientific Flight in Antarctica

Hasegawa

Horikoshi

Matsuda

et al. 2009

Trans. JSASS Space Tech. Japan

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The Balloon-born Experiment with a Superconducting Spectrometer (BESS), aiming to search for antiparticles/antimatter in the cosmic radiation, successfully carried out the second scientific flight over Antarctica in 2007/2008, in the solar minimum period. The newly developed BESS Polar-II spectrometer including the solar-cell power supply system worked well during the flight, and more than 4.6 billion cosmic ray events were recorded for 24.5 days. This report describes overview of the scientific flight.

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Measurement of the cosmic-ray low-energy antiproton spectrum with the first BESS-Polar Antarctic flight

Cited by 88 publications

References 38 publications

Measurements of cosmic-ray antiprotons with PAMELA

Measurements of cosmic-ray antiprotons with PAMELA

The US Long Duration Balloon Facility at McMurdo Station

The 2007 BESS-Polar Scientific Flight in Antarctica

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