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Search for a Lorentz invariance violation contribution in atmospheric neutrino oscillations using MACRO data

Battistoni, G (author)
Becherini, Yvonne (author)
Università di Bologna, Italy ; INFN, Italy
Cecchini, S (author)
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Cozzi, M (author)
Dekhissi, H (author)
Esposito, L S (author)
Giacomelli, G (author)
Giorgini, M (author)
Mandrioli, G (author)
Manzoor, S (author)
Margiotta, A (author)
Patrizii, L (author)
Popa, V (author)
Sioli, M (author)
Sirri, G (author)
Spurio, M (author)
Togo, V (author)
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 (creator_code:org_t)
Elsevier, 2005
2005
English.
In: Physics Letters B. - : Elsevier. - 0370-2693 .- 1873-2445. ; 615:1-2, s. 14-18
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The energy spectrum of neutrino-induced upward-going muons in MACRO has been analysed in terms of relativity principles violating effects, keeping standard mass-induced atmospheric neutrino oscillations as the dominant source of v(u) -> v(tau) transitions. The data disfavor these exotic possibilities even at a subdominant level, and stringent 90% C.L. limits are placed on the Lorentz invariance violation parameter vertical bar Delta v vertical bar < 6 x 10(-24) at sin2 theta(v) = 0 and vertical bar Delta(v)vertical bar < 2.5-5 x 10(-26) at sin 2 theta(v) = +/- 1. These limits can also be re-interpreted as upper bounds on the parameters describing violation of the equivalence principle. (c) 2005 Elsevier B.V. All rights reserved.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

Astropartikelfysik
Astroparticle Physics

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