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


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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.

Sobre autores

V. Mikhailov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Autor responsável pela correspondência
Email: vvmikhajlov@mephi.ru
Rússia, Moscow, 115409

O. Adriani

Department of Physics; INFN, Sezione di Florence

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

G. Bazilevskaya

Lebedev Physical Institute

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

G. Barbarino

Department of Physics; INFN, Sezione di Naples

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

R. Bellotti

Department of Physics; INFN, Sezione di Bari

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

E. Bogomolov

Ioffe Institute

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

M. Boezio

INFN, Sezione di Trieste

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

V. Bonvicini

INFN, Sezione di Trieste

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

M. Bongi

Department of Physics; INFN, Sezione di Florence

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

S. Bottai

INFN, Sezione di Florence

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

A. Bruno

Department of Physics; INFN, Sezione di Bari

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

A. Vacchi

INFN, Sezione di Trieste; Department of Mathematics and Informatics

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

E. Vannuccini

INFN, Sezione di Florence

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

G. Vasilyev

Ioffe Institute

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

S. Voronov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

A. Galper

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

C. De Santis

INFN, Sezione di Rome Tor Vergata; Department of Physics

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

G. Zampa

INFN, Sezione di Trieste

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

N. Zampa

INFN, Sezione di Trieste

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

M. Casolino

INFN, Sezione di Rome Tor Vergata

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

D. Campana

INFN, Sezione di Naples

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

A. Karelin

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

P. Carlson

Department of Physics; Oskar Klein Centre for Cosmoparticle Physics

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

G. Castellini

IFAC

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

F. Cafagna

INFN, Sezione di Bari

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

A. Kvashnin

Lebedev Physical Institute

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

A. Kvashnin

Lebedev Physical Institute

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

S. Koldashov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

S. Koldobskiy

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

S. Krutkov

Ioffe Institute

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

A. Leonov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

A. Mayorov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

V. Malakhov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

M. Martucci

Department of Physics; Laboratori Nazionali di Frascati

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

L. Marcelli

Department of Physics

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

W. Menn

Department of Physics

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

M. Merge

INFN, Sezione di Rome Tor Vergata; Department of Physics

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

E. Mocchiutti

INFN, Sezione di Trieste

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

A. Monaco

Department of Physics; INFN, Sezione di Bari

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

N. Mori

INFN, Sezione di Florence

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

R. Munini

INFN, Sezione di Trieste; Department of Physics

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

G. Osteria

INFN, Sezione di Naples

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

B. Panico

INFN, Sezione di Naples

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

P. Papini

INFN, Sezione di Florence

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

P. Picozza

INFN, Sezione di Rome Tor Vergata; Department of Physics

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

M. Pearce

Department of Physics; Oskar Klein Centre for Cosmoparticle Physics

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

M. Ricci

Laboratori Nazionali di Frascati

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

S. Ricciarini

INFN, Sezione di Florence

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

M. Runtso

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

M. Simon

Department of Physics

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

R. Sparvoli

INFN, Sezione di Rome Tor Vergata; Department of Physics

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

P. Spillantini

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

Y. Stozhkov

Lebedev Physical Institute

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

Y. Yurkin

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

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

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