Search for the sidereal and solar diurnal modulations in the total MACRO muon data set

MACRO Collaboration; M Ambrosio; R Antolini; A Baldini; G C Barbarino; B C Barish; G Battistoni; Yvonne Becherini; R Bellotti; C Bemporad; P Bernardini; H Bilokon; C Bower; M Brigida; S Bussino; F Cafagna; M Calicchio; D Campana; M Carboni; R Caruso; S Cecchini; F Cei; V Chiarella; T Chiarusi; B C Choudhary; S Coutu; M Cozzi; G De Cataldo; H Dekhissi; C De Marzo; I De Mitri; J Derkaoui; M De Vincenzi; A Di Credico; O Erriquez; C Favuzzi; C Forti; P Fusco; G Giacomelli; G Giannini; N Giglietto; M Giorgini; M Grassi; A Grillo; C Gustavino; A Habig; K Hanson; R Heinz; E Katsavounidis; I Katsavounidis; E Kearns; H Kim; S Kyriazopoulou; E Lamanna; C Lane; D S Levin; P Lipari; N P Longley; M J Longo; F Loparco; F Maaroufi; G Mancarella; G Mandrioli; A Margiotta; A Marini; D Martello; A Marzari-Chiesa; M N Mazziotta; D G Michael; L Miller; P Monacelli; T Montaruli; M Monteno; S Mufson; J Musser; D Nicolo; R Nolty; C Orth; G Osteria; O Palamara; L Patrizii; R Pazzi; C W Peck; L Perrone; S Petrera; V Popa; A Raino; J Reynoldson; F Ronga; C Satriano; E Scapparone; K Scholberg; P Serra; M Sioli; G Sirri; M Sitta; P Spinelli; M Spinetti; M Spurio; R Steinberg; J L Stone; L R Sulak; A Surdo; G Tarle; V Togo; M Vakili; C W Walter; R Webb

doi:10.1103/PhysRevD.67.042002

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Search for the sidereal and solar diurnal modulations in the total MACRO muon data set

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Search for the sidereal and solar diurnal modulations in the total MACRO muon data set

MACRO Collaboration, M Ambrosio, R Antolini, A Baldini, G C Barbarino, B C Barish, G Battistoni, Yvonne Becherini, R Bellotti, C Bemporad, …

Physical review. D, Particles and fields, v 67(4), 042002

2003

DOI: https://doi.org/10.1103/PhysRevD.67.042002

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http://arxiv.org/abs/astro-ph/0211119View

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Abstract

Astroparticle Physics

Astropartikelfysik

We have analyzed 44.3M single muons collected by MACRO from 1991 through 2000 in 2145 live days of operation. We have searched for the solar diurnal, apparent sidereal, and pseudosidereal modulation of the underground muon rate by computing hourly deviations of the muon rate from 6 month averages. We find evidence for statistically significant modulations with the solar diurnal and the sidereal periods. The amplitudes of these modulations are <0.1%, and are at the limit of the detector statistics. The pseudosidereal modulation is not statistically significant. The solar diurnal modulation is due to the daily atmospheric temperature variations at 20 km, the altitude of primary cosmic ray interactions with the atmosphere; MACRO is the deepest experiment to report this result. The sidereal modulation is in addition to the expected Compton-Getting modulation due to solar system motion relative to the local standard of rest; it represents motion of the solar system with respect to the galactic cosmic rays toward the galactic plane.

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Title: Search for the sidereal and solar diurnal modulations in the total MACRO muon data set
Creators: MACRO Collaboration (Collaboration)
M Ambrosio
R Antolini
A Baldini
G C Barbarino
B C Barish
G Battistoni
Yvonne Becherini
R Bellotti
C Bemporad
P Bernardini
H Bilokon
C Bower
M Brigida
S Bussino
F Cafagna
M Calicchio
D Campana
M Carboni
R Caruso
S Cecchini
F Cei
V Chiarella
T Chiarusi
B C Choudhary
S Coutu
M Cozzi
G De Cataldo
H Dekhissi
C De Marzo
I De Mitri
J Derkaoui
M De Vincenzi
A Di Credico
O Erriquez
C Favuzzi
C Forti
P Fusco
G Giacomelli
G Giannini
N Giglietto
M Giorgini
M Grassi
A Grillo
C Gustavino
A Habig
K Hanson
R Heinz
E Katsavounidis
I Katsavounidis
E Kearns
H Kim
S Kyriazopoulou
E Lamanna
C Lane
D S Levin
P Lipari
N P Longley
M J Longo
F Loparco
F Maaroufi
G Mancarella
G Mandrioli
A Margiotta
A Marini
D Martello
A Marzari-Chiesa
M N Mazziotta
D G Michael
L Miller
P Monacelli
T Montaruli
M Monteno
S Mufson
J Musser
D Nicolo
R Nolty
C Orth
G Osteria
O Palamara
L Patrizii
R Pazzi
C W Peck
L Perrone
S Petrera
V Popa
A Raino
J Reynoldson
F Ronga
C Satriano
E Scapparone
K Scholberg
P Serra
M Sioli
G Sirri
M Sitta
P Spinelli
M Spinetti
M Spurio
R Steinberg
J L Stone
L R Sulak
A Surdo
G Tarle
V Togo
M Vakili
C W Walter
R Webb
Publication Details: Physical review. D, Particles and fields, v 67(4), 042002
Publisher: Cold Spring Harbor Press
Resource Type: Journal article
Language: English
Academic Unit: Physics
Web of Science ID: WOS:000181443000003
Scopus ID: 2-s2.0-3543056206
Other Identifier: 991021880195404721

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Collaboration types: Domestic collaboration; International collaboration
Web of Science research areas: Astronomy & Astrophysics; Physics, Particles & Fields

Search for the sidereal and solar diurnal modulations in the total MACRO muon data set

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