Measurements of cosmic-ray electrons and positrons by the WiZard/CAPRICE collaboration

被引：43

作者：

Boezio, M

Barbiellini, G

Bonvicini, V

Schiavon, P

Vacchi, A

Zampa, N

Bergström, D

Carlson, P

Francke, T

Grinstein, S

Weber, N

Suffert, M

Hof, M

Kremer, J

Menn, W

Simon, M

Stephens, SA

Ambriola, M

Bellotti, R

Cafagna, FS

Ciacio, F

Circella, M

De Marzo, C

Finetti, N

Papini, P

Piccardi, S

Spillantini, P

Bartalucci, S

Ricci, M

Grimani, C

Casolino, M

De Pascale, MP

Morselli, A

Picozza, P

Sparvoli, R

Mitchell, JW

Ormes, JF

Streitmatter, RE

Bravar, U

Stochaj, SJ

机构：

[1] Univ Trieste, Dipartimento Fis, I-34147 Trieste, Italy

[2] Ist Nazl Fis Nucl, Sez Trieste, I-34147 Trieste, Italy

[3] Royal Inst Technol, S-10405 Stockholm, Sweden

[4] Ctr Rech Nucl, F-67037 Strasbourg, France

[5] Univ Gesamthsch Siegen, D-57068 Siegen, Germany

[6] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[7] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy

[8] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[9] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy

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

[11] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[12] Univ Urbino, Ist Fis, I-61029 Urbino, Italy

[13] Univ Rome, Dipartimento Fis, I-00133 Rome, Italy

[14] Ist Nazl Fis Nucl, Sez Roma, I-00133 Rome, Italy

[15] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[16] New Mexico State Univ, Las Cruces, NM 88003 USA

来源：

ORIGIN AND ACCELERATION OF COSMIC RAYS | 2001年 / 27卷 / 04期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/S0273-1177(01)00108-9

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Two recent balloon-borne experiments have been performed by the WiZard/CAPRICE collaboration in order to study the electron and positron components in the cosmic radiation. On 1994 August 8-9 the CAPRICE94 experiment flew from norther Canada and on 1998 May 28-29 the CAPRICE98 experiment flew from New Mexico, USA at altitudes corresponding to 3.9 and 5.5 g/cm(2) Of average residual atmosphere respectively. The apparatus were equipped with a, Ring Imaging Cherenkov (RICH) detector, a time-of-flight system, a superconducting magnet spectrometer with a tracking system and a 7-radiation-length silicon-tungsten imaging calorimeter. The RICH used in 1994 had a solid NaF radiator while in 1998 the RICH had a C4F10 gaseous radiator We report on the electron and positron spectra and positron fraction at the top of the atmosphere from few hundred MeV to 40 GeV measured by these two experiments. (C) 2001 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：669 / 674

页数：6

共 25 条

[1] The energy spectra and relative abundances of electrons and positrons in the galactic cosmic radiation [J].

Barwick, SW ;

Beatty, JJ ;

Bower, CR ;

Chaput, CJ ;

Coutu, S ;

de Nolfo, GA ;

DuVernois, MA ;

Ellithorpe, D ;

Ficenec, D ;

Knapp, J ;

Lowder, DM ;

McKee, S ;

Muller, D ;

Musser, JA ;

Nutter, SL ;

Schneider, E ;

Swordy, SP ;

Tarle, G ;

Tomasch, AD ;

Torbet, E .

ASTROPHYSICAL JOURNAL, 1998, 498 (02) :779-789

[2] Measurements of the cosmic-ray positron fraction from 1 to 50 GeV [J].

Barwick, SW ;

Beatty, JJ ;

Bhattacharyya, A ;

Bower, CR ;

Chaput, CJ ;

Coutu, S ;

deNolfo, GA ;

Knapp, J ;

Lowder, DM ;

McKee, S ;

Muller, D ;

Musser, JA ;

Nutter, SL ;

Schneider, E ;

Swordy, SP ;

Tarle, G ;

Tomasch, AD ;

Torbet, E .

ASTROPHYSICAL JOURNAL, 1997, 482 (02) :L191-L194

[3]

BERGSTROM D, 1999, P 26 INT COSM RAY C, V5, P80

[4] The WiZard CAPRICE silicon tungsten calorimeter [J].

Bocciolini, M ;

Celletti, F ;

Finetti, N ;

Grandi, M ;

Papini, P ;

Perego, A ;

Piccardi, S ;

Spillantini, P ;

Bidoli, V ;

Candusso, M ;

Casolino, M ;

DePascale, MP ;

Morselli, A ;

Picozza, P ;

Sparvoli, R ;

Basini, G ;

Mazzenga, G ;

Ricci, M ;

Bronzini, F ;

Barbiellini, G ;

Boezio, M ;

Bravar, U ;

Fratnik, F ;

Schiavon, P ;

Vacchi, A ;

Zampa, N .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 370 (2-3) :403-412

[5] The cosmic-ray electron and positron spectra measured at 1 Au during solar minimum activity [J].

Boezio, M ;

Carlson, P ;

Francke, T ;

Weber, N ;

Suffert, M ;

Hof, M ;

Menn, W ;

Simon, M ;

Stephens, SA ;

Bellotti, R ;

Cafagna, F ;

Castellano, M ;

Circella, M ;

De Marzo, C ;

Finetti, N ;

Papini, P ;

Piccardi, S ;

Spillantini, P ;

Ricci, M ;

Casolino, M ;

De Pascale, MP ;

Morselli, A ;

Picozza, P ;

Sparvoli, R ;

Barbiellini, G ;

Bravar, U ;

Schiavon, P ;

Vacchi, A ;

Zampa, N ;

Grimani, C ;

Mitchell, JW ;

Ormes, JF ;

Streitmatter, RE ;

Golden, RL ;

Stochaj, SJ .

ASTROPHYSICAL JOURNAL, 2000, 532 (01) :653-669

[6] MEASUREMENT OF PRIMARY COSMIC-RAY ELECTRONS AND POSITRONS FROM 4 TO 50 GEV [J].

BUFFINGTON, A ;

ORTH, CD ;

SMOOT, GF .

ASTROPHYSICAL JOURNAL, 1975, 199 (03) :669-679

[7] RESULTS FROM BEAM TESTS OF THE CAPRICE RICH DETECTOR [J].

CARLSON, P ;

FRANCKE, T ;

LOFGREN, S ;

WEBER, N ;

SUFFERT, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 349 (2-3) :577-591

[8] Solar modulation of cosmic electrons [J].

Clem, JM ;

Clements, DP ;

Esposito, J ;

Evenson, P ;

Huber, D ;

LHeureux, J ;

Meyer, P ;

Constantin, C .

ASTROPHYSICAL JOURNAL, 1996, 464 (01) :507-515

[9] Cosmic-ray positrons:: are there primary sources? [J].

Coutu, S ;

Barwick, SW ;

Beatty, JJ ;

Bhattacharyya, A ;

Bower, CR ;

Chaput, CJ ;

de Nolfo, GA ;

DuVernois, MA ;

Labrador, A ;

McKee, SP ;

Müller, D ;

Musser, JA ;

Nutter, SL ;

Schneider, E ;

Swordy, SP ;

Tarlé, G ;

Tomasch, AD ;

Torbet, E .

ASTROPARTICLE PHYSICS, 1999, 11 (04) :429-435

[10] MEASUREMENT OF COSMIC-RAY POSITRON AND NEGATRON SPECTRA BETWEEN 50 AND 800 MV [J].

DAUGHERTY, JK ;

HARTMAN, RC ;

SCHMIDT, PJ .

ASTROPHYSICAL JOURNAL, 1975, 198 (02) :493-505

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