Modulation of electrons and positrons in 2006–2015 in the PAMELA experiment


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Abstract

The PAMELA magnetic spectrometer was launched aboard the Resurs DK-1 satellite into a nearpolar circumterrestrial orbit with an altitude of 350–600 km to study fluxes of the particles and antiparticles of cosmic rays in the wide energy range of ~80 MeV to several hundred gigaelectronvolts. The results from observations of temporal variations in electron and positron fluxes in 2006–2015 are presented. The ratio of electron and positron fluxes measured in this time interval reveals a dependence on the rigidity of particles, the solar activity, and the polarity of the solar magnetic field.

About the authors

V. V. Mikhailov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Author for correspondence.
Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

O. Adriani

Department of Physics; INFN, Sezione di Florence

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

G. A. Bazilevskaya

Lebedev Physical Institute

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 119991

G. C. Barbarino

Department of Physics; INFN, Sezione di Naples

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

R. Bellotti

Department of Physics; INFN, Sezione di Bari

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

E. A. Bogomolov

Ioffe Institute

Email: vvmikhajlov@mephi.ru
Russian Federation, St. Petersburg, 194021

M. Boezio

INFN, Sezione di Trieste

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

V. Bonvicini

INFN, Sezione di Trieste

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

M. Bongi

Department of Physics; INFN, Sezione di Florence

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

S. Bottai

INFN, Sezione di Florence

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

A. Bruno

Department of Physics; INFN, Sezione di Bari

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

A. Vacchi

INFN, Sezione di Trieste; Department of Mathematics and Informatics

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

E. Vannuccini

INFN, Sezione di Florence

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

G. I. Vasilyev

Ioffe Institute

Email: vvmikhajlov@mephi.ru
Russian Federation, St. Petersburg, 194021

S. A. Voronov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

A. M. Galper

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

C. De Santis

INFN, Sezione di Rome Tor Vergata; Department of Physics

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

G. Zampa

INFN, Sezione di Trieste

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

N. Zampa

INFN, Sezione di Trieste

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

M. Casolino

INFN, Sezione di Rome Tor Vergata

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

D. Campana

INFN, Sezione di Naples

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

A. V. Karelin

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

P. Carlson

Department of Physics; Oskar Klein Centre for Cosmoparticle Physics

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

G. Castellini

IFAC

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

F. Cafagna

INFN, Sezione di Bari

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

A. A. Kvashnin

Lebedev Physical Institute

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 119991

A. N. Kvashnin

Lebedev Physical Institute

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 119991

S. V. Koldashov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

S. A. Koldobskiy

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

S. Y. Krutkov

Ioffe Institute

Email: vvmikhajlov@mephi.ru
Russian Federation, St. Petersburg, 194021

A. A. Leonov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

A. G. Mayorov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

V. V. Malakhov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

M. Martucci

Department of Physics; Laboratori Nazionali di Frascati

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

L. Marcelli

Department of Physics

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

W. Menn

Department of Physics

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

M. Merge

INFN, Sezione di Rome Tor Vergata; Department of Physics

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

E. Mocchiutti

INFN, Sezione di Trieste

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

A. Monaco

Department of Physics; INFN, Sezione di Bari

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

N. Mori

INFN, Sezione di Florence

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

R. Munini

INFN, Sezione di Trieste; Department of Physics

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

G. Osteria

INFN, Sezione di Naples

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

B. Panico

INFN, Sezione di Naples

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

P. Papini

INFN, Sezione di Florence

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

P. Picozza

INFN, Sezione di Rome Tor Vergata; Department of Physics

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

M. Pearce

Department of Physics; Oskar Klein Centre for Cosmoparticle Physics

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

M. Ricci

Laboratori Nazionali di Frascati

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

S. B. Ricciarini

INFN, Sezione di Florence

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

M. F. Runtso

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

M. Simon

Department of Physics

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

R. Sparvoli

INFN, Sezione di Rome Tor Vergata; Department of Physics

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

P. Spillantini

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

Y. I. Stozhkov

Lebedev Physical Institute

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 119991

Y. T. Yurkin

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: vvmikhajlov@mephi.ru
Russian Federation, Moscow, 115409

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