Search for antihelium in cosmic rays

被引：143

作者：

Alcaraz, J ^{[1
]}

Alvisi, D

Alpat, B

Ambrosi, G

Anderhub, H

Ao, L

Arefiev, A

Azzarello, P

Babucci, E

Baldini, L

Basile, M

Barancourt, D

Barao, F

Barbier, G

Barreira, G

Battison, R

Becker, R

Becker, U

Bellagamba, L

Béné, P

Berdugo, J

Berges, P

Bertucci, B

Biland, A

Bizzaglia, S

Blasko, S

Boella, G

Bourquin, M

Bruni, G

Buenerd, M

Burger, JD

Burger, WJ

Cai, XD

Cavalletti, R

Camps, C

Cannarsa, P

Capell, M

Casadei, D

Casaus, J

Castellini, G

Chang, YH

Chen, HS

Chen, ZG

Chernoplekov, NA

Chiarini, A

Chiueh, TH

Chuang, YL

Cindolo, F

Commichau, V

Contin, A

机构：

[1] CIEMAT, E-28040 Madrid, Spain

[2] Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany

[3] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[4] Lab Annecy Le Vieux Phys Particules, LAPP, F-74941 Annecy Le Vieux, France

[5] Louisiana State Univ, Baton Rouge, LA 70803 USA

[6] Johns Hopkins Univ, Baltimore, MD 21218 USA

[7] Chinese Acad Sci, Ctr Space Sci & Applicat, Beijing 100080, Peoples R China

[8] Chinese Acad Launching Vehicle Technol, CALT, Beijing 100076, Peoples R China

[9] Chinese Acad Sci, Inst High Energy Phys, Beijing 100080, Peoples R China

[10] Univ Bologna, I-40126 Bologna, Italy

[11] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[12] Politech Univ Bucharest, Inst Microbiol, R-76900 Bucharest, Romania

[13] Univ Bucharest, R-76900 Bucharest, Romania

[14] MIT, Cambridge, MA 02139 USA

[15] Natl Cent Univ, Chungli 32054, Taiwan

[16] LIP, Lab Instrumentacao & Fis Expt Particulas, P-3000 Coimbra, Portugal

[17] Univ Maryland, College Pk, MD 20742 USA

[18] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy

[19] Max Planck Inst Extraterr Phys, D-85740 Garching, Germany

[20] Univ Geneva, CH-1211 Geneva 4, Switzerland

[21] Inst Nucl Sci, F-38026 Grenoble, France

[22] Helsinki Univ Technol, FIN-02540 Kylmala, Finland

[23] Inst Super Tecn, P-1096 Lisbon, Portugal

[24] LIP, Lab Instrumentacao & Fis Expt Particulas, P-1000 Lisbon, Portugal

[25] Chung Shan Inst Sci & Technol, Lungtan 11529, Taiwan

[26] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

[27] IV Kurchatov Atom Energy Inst, Moscow 123182, Russia

[28] Inst Theoret & Expt Phys, Moscow 117259, Russia

[29] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy

[30] Univ Perugia, I-06100 Perugia, Italy

[31] Acad Sinica, Taipei 115, Taiwan

[32] Kyungpook Natl Univ, Taegu 702701, South Korea

[33] Univ Turku, FIN-20014 Turku, Finland

[34] ETH Zurich, CH-8093 Zurich, Switzerland

[35] Inst Phys Nucl, St Petersburg, Russia

来源：

PHYSICS LETTERS B | 1999年 / 461卷 / 04期

关键词：

D O I：

10.1016/S0370-2693(99)00874-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Alpha Magnetic Spectrometer (AMS) was flown on the space shuttle Discovery during flight STS-91 in a 51.7 degrees orbit at altitudes between 320 and 390 km. A total of 2.86 X 10(6) helium nuclei were observed in the rigidity range 1 to 140 GV. No antihelium nuclei were detected at any rigidity. An upper limit on the flux ratio of antihelium to helium of < 1.1 X 10(-6) is obtained. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：387 / 396

页数：10

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