Secondary positrons and electrons in near-Earth space in the PAMELA experiment


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Аннотация

Fluxes of electrons and positrons with energies above ~100 MeV in the near-Earth space are measured with the PAMELA magnetic spectrometer aboard the Resurs DK-1 satellite launched on June 15, 2006, into a quasipolar orbit with an altitude of 350–600 km and an inclination of 70°. Calculating the trajectories of detected electrons and positrons in the magnetosphere of the Earth allows us to determine their origin and isolate particles produced during interaction between cosmic rays and the residual atmosphere. Spatial distributions of albedo, quasitrapped, and trapped (in the radiation belt) positrons and electrons are presented. The ratio of positron and electron fluxes suggests that the fluxes of trapped particles of the radiation belt and quasitrapped secondary particles have different mechanisms of formation.

Об авторах

V. Mikhailov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Автор, ответственный за переписку.
Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

O. Adriani

Department of Physics; INFN, Sezione di Florence

Email: vvmikhajlov@mephi.ru
Италия, Sesto Fiorentino, Florence, I-50019; Sesto Fiorentino, Florence, I-50019

G. Bazilevskaya

Lebedev Physical Institute

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 119991

G. Barbarino

Department of Physics; INFN, Sezione di Naples

Email: vvmikhajlov@mephi.ru
Италия, Naples, I-80126; Naples, I-80126

R. Bellotti

Department of Physics; INFN, Sezione di Bari

Email: vvmikhajlov@mephi.ru
Италия, Bari, I-70126; Bari, I-70126

E. Bogomolov

Ioffe Institute

Email: vvmikhajlov@mephi.ru
Россия, St. Petersburg, 194021

M. Boezio

INFN, Sezione di Trieste

Email: vvmikhajlov@mephi.ru
Италия, Trieste, I-34149

V. Bonvicini

INFN, Sezione di Trieste

Email: vvmikhajlov@mephi.ru
Италия, Trieste, I-34149

M. Bongi

Department of Physics; INFN, Sezione di Florence

Email: vvmikhajlov@mephi.ru
Италия, Sesto Fiorentino, Florence, I-50019; Sesto Fiorentino, Florence, I-50019

S. Bottai

INFN, Sezione di Florence

Email: vvmikhajlov@mephi.ru
Италия, Sesto Fiorentino, Florence, I-50019

A. Bruno

Department of Physics; INFN, Sezione di Bari

Email: vvmikhajlov@mephi.ru
Италия, Bari, I-70126; Bari, I-70126

A. Vacchi

INFN, Sezione di Trieste; Department of Mathematics and Informatics

Email: vvmikhajlov@mephi.ru
Италия, Trieste, I-34149; Udine, I-33100

E. Vannuccini

INFN, Sezione di Florence

Email: vvmikhajlov@mephi.ru
Италия, Sesto Fiorentino, Florence, I-50019

G. Vasilyev

Ioffe Institute

Email: vvmikhajlov@mephi.ru
Россия, St. Petersburg, 194021

S. Voronov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

A. Galper

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

C. De Santis

INFN, Sezione di Rome Tor Vergata; Department of Physics

Email: vvmikhajlov@mephi.ru
Италия, Rome, I-00133; Rome, I-00133

V. Di Felice

INFN, Sezione di Rome Tor Vergata; Agenzia Spaziale Italiana (ASI) Science Data Center

Email: vvmikhajlov@mephi.ru
Италия, Rome, I-00133; Rome, I-00133

G. Zampa

INFN, Sezione di Trieste

Email: vvmikhajlov@mephi.ru
Италия, Trieste, I-34149

N. Zampa

INFN, Sezione di Trieste

Email: vvmikhajlov@mephi.ru
Италия, Trieste, I-34149

M. Casolino

INFN, Sezione di Rome Tor Vergata

Email: vvmikhajlov@mephi.ru
Италия, Rome, I-00133

D. Campana

INFN, Sezione di Naples

Email: vvmikhajlov@mephi.ru
Италия, Naples, I-80126

A. Karelin

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

P. Carlson

Department of Physics; Oskar Klein Centre for Cosmoparticle Physics

Email: vvmikhajlov@mephi.ru
Швеция, Stockholm, SE-10691; Stockholm, SE-10691

G. Castellini

IFAC

Email: vvmikhajlov@mephi.ru
Италия, Sesto Fiorentino, Florence, I-50019

F. Cafagna

INFN, Sezione di Bari

Email: vvmikhajlov@mephi.ru
Италия, Bari, I-70126

A. Kvashnin

Lebedev Physical Institute

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 119991

A. Kvashnin

Lebedev Physical Institute

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 119991

S. Koldashov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

S. Koldobskiy

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

S. Krutkov

Ioffe Institute

Email: vvmikhajlov@mephi.ru
Россия, St. Petersburg, 194021

A. Leonov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

A. Mayorov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

V. Malakhov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

M. Martucci

Department of Physics; Laboratori Nazionali di Frascati

Email: vvmikhajlov@mephi.ru
Италия, Rome, I-00133; Frascati, I-00044

L. Marcelli

Department of Physics

Email: vvmikhajlov@mephi.ru
Италия, Rome, I-00133

W. Menn

Department of Physics

Email: vvmikhajlov@mephi.ru
Германия, Siegen, D-57068

M. Merge

INFN, Sezione di Rome Tor Vergata; Department of Physics

Email: vvmikhajlov@mephi.ru
Италия, Rome, I-00133; Rome, I-00133

E. Mocchiutti

INFN, Sezione di Trieste

Email: vvmikhajlov@mephi.ru
Италия, Trieste, I-34149

A. Monaco

Department of Physics; INFN, Sezione di Bari

Email: vvmikhajlov@mephi.ru
Италия, Bari, I-70126; Bari, I-70126

N. Mori

INFN, Sezione di Florence

Email: vvmikhajlov@mephi.ru
Италия, Sesto Fiorentino, Florence, I-50019

R. Munini

INFN, Sezione di Trieste; Department of Physics

Email: vvmikhajlov@mephi.ru
Италия, Trieste, I-34149; Trieste, I-34147

G. Osteria

INFN, Sezione di Naples

Email: vvmikhajlov@mephi.ru
Италия, Naples, I-80126

B. Panico

INFN, Sezione di Naples

Email: vvmikhajlov@mephi.ru
Италия, Naples, I-80126

P. Papini

INFN, Sezione di Florence

Email: vvmikhajlov@mephi.ru
Италия, Sesto Fiorentino, Florence, I-50019

P. Picozza

INFN, Sezione di Rome Tor Vergata; Department of Physics

Email: vvmikhajlov@mephi.ru
Италия, Rome, I-00133; Rome, I-00133

M. Pearce

Department of Physics; Oskar Klein Centre for Cosmoparticle Physics

Email: vvmikhajlov@mephi.ru
Швеция, Stockholm, SE-10691; Stockholm, SE-10691

M. Ricci

Laboratori Nazionali di Frascati

Email: vvmikhajlov@mephi.ru
Италия, Frascati, I-00044

S. Ricciarini

INFN, Sezione di Florence

Email: vvmikhajlov@mephi.ru
Италия, Sesto Fiorentino, Florence, I-50019

M. Runtso

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

M. Simon

Department of Physics

Email: vvmikhajlov@mephi.ru
Германия, Siegen, D-57068

R. Sparvoli

INFN, Sezione di Rome Tor Vergata; Department of Physics

Email: vvmikhajlov@mephi.ru
Италия, Rome, I-00133; Rome, I-00133

P. Spillantini

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

Y. Stozhkov

Lebedev Physical Institute

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 119991

Y. Yurkin

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Россия, Moscow, 115409

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