Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Matter enhanced neutrino oscillations with a realistic earth density profile
KTH, Tidigare Institutioner, Fysik.ORCID-id: 0000-0002-3525-8349
2000 (engelsk)Inngår i: Modern Physics Letters A, ISSN 0217-7323, E-ISSN 1793-6632, Vol. 15, nr 13, s. 867-874Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We have investigated matter enhanced neutrino oscillations with a mantle-core-mantle step function and a realistic Earth matter density profile in both a two- and a three-neutrino scenario. We found that the realistic Earth matter density profile can be well approximated with the mantle-core-mantle step function and that there could be an influence on the oscillation channel nu(mu) --> nu(tau) due to resonant enhancement of one of the mixing angles.

sted, utgiver, år, opplag, sider
World Scientific Publishing , 2000. Vol. 15, nr 13, s. 867-874
Emneord [en]
Atmospheric neutrinos, parametric-resonance, solar, spectroscopy
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-13380DOI: 10.1142/S0217732300000864ISI: 000087853200006OAI: oai:DiVA.org:kth-13380DiVA, id: diva2:324754
Merknad
QC 20100616Tilgjengelig fra: 2011-06-22 Laget: 2010-06-16 Sist oppdatert: 2017-12-12bibliografisk kontrollert
Inngår i avhandling
1. Dynamics of quarks and leptons: theoretical Studies of Baryons and Neutrinos
Åpne denne publikasjonen i ny fane eller vindu >>Dynamics of quarks and leptons: theoretical Studies of Baryons and Neutrinos
2000 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

The Standard Model of Elementary Particle Physics (SM) is the present theoryfor the elementary particles and their interactions and is a well-established theorywithin the physics community. The SM is a combination of Quantum Chromodynamics(QCD) and the Glashow{Weinberg{Salam (GWS) electroweak model. QCDis a theory for the strong force, whereas the GWS electroweak model is a theoryfor the weak and electromagnetic forces. This means that the SM describes allfundamental forces in Nature, except for the gravitational force. However, the SMis not a nal theory and some of its problems will be discussed in this thesis.In the rst part of this thesis, several properties of baryons are studied suchas spin structure, spin polarizations, magnetic moments, weak form factors, andnucleon quark sea isospin asymmetries, using the chiral quark model (QM). TheQM is an eective chiral eld theory developed to describe low energy phenomena of baryons, since perturbative QCD is not applicable at low energies. The resultsof the QM are in good agreement with experimental data.The second part of the thesis is devoted to the concept of quantum mechanicalneutrino oscillations. Neutrino oscillations can, however, not occur within the GWSelectroweak model. Thus, this model has to be extended in some way. All studiesincluding neutrino oscillation are done within three avor neutrino oscillationmodels. Both vacuum and matter neutrino oscillations are considered. Especially,global ts to all data of candidates for neutrino oscillations are presented and alsoan analytical formalism for matter enhanced three avor neutrino oscillations usingtime evolution operators is derived. Furthermore, investigations of matter eectswhen neutrinos traverse the Earth are included.The thesis begins with an introductory review of the QM and neutrino oscillationsand ends with the research results, which are given in the nine accompanyingscientic articles.

sted, utgiver, år, opplag, sider
Stockholm: KTH, 2000. s. xiv, 152
Serie
Trita-FYS, ISSN 0280-316X ; 8045
Emneord
Chiral quark model, baryons, conguration mixing, magnetic moments, Coleman{Glashow sum-rule, spin structure, spin polarizations, weak form factors, semileptonic decays, nucleon quark sea isospin asymmetry; neutrinos, neutrino oscillations, neutrino avors, mixing angles, mass squared dierences, MSW eect; numerical calculations, interpretation of experiments
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-2991 (URN)91-7170-537-6 (ISBN)
Disputas
2000-06-09, 00:00
Merknad
QC 20100616Tilgjengelig fra: 2000-06-08 Laget: 2000-06-08 Sist oppdatert: 2010-06-16bibliografisk kontrollert

Open Access i DiVA

fulltext(217 kB)132 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 217 kBChecksum SHA-512
47269a16ed14ac5440aa508a89e5dbf78e193848dd86720e29a890520a62a989ade8b6397351fdcded5c1d9600cc97c14314f168d7fe93411e46bb0295786450
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstModern Physics Letters Ahttp://arxiv.org/abs/hep-ph/9909501

Personposter BETA

Ohlsson, Tommy

Søk i DiVA

Av forfatter/redaktør
Ohlsson, Tommy
Av organisasjonen
I samme tidsskrift
Modern Physics Letters A

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 132 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 122 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf