BooNE has begun

Zimmerman, E. D.

doi:10.1016/s0920-5632(03)02187-x

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…The order of the coefficients of these quantities, γ [38] confirms previous LSND claims, then this may be a significant result. One would be tempted to conclude that if the above estimate holds, this would probably mean that the neutrino mass differences might be due to quantum gravity decoherence.…”

Section: Combining Decoherence Oscillations and The Lsnd Resultssupporting

confidence: 84%

“…The most striking consequence will be seen in MiniBooNE [38], According to our picture, MiniBooNE will be able to confirm LSND only when running in the antineutrino mode and not in the neutrino one, as decoherence effects live only in the former. Smaller but experimentally accessible signatures will be seen also in MI-NOS [39], by comparing conjugated channels (most noticeably, the muon survival probability).…”

Section: Combining Decoherence Oscillations and The Lsnd Resultsmentioning

confidence: 58%

“…It is imperative that the LSND results are confirmed by future experiments, such as MiniBOONE [38], because as we have seen above, it is indeed possible that the study of neutrino physics constitutes a true and rare window to Planck scale physics, with far reaching consequences ranging from cosmological considerations to the origin of the dark energy component of the Universe. In the present work, motivated by our sample point, we put forward a conjecture that quantum-gravity decoherence may be responsible for the neutrino mass differences and the non-zero value of the vacuum energy density of the Universe today.…”

Section: Instead Of Conclusionmentioning

confidence: 97%

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CPT violating decoherence and LSND: a possible window to planck scale physics

Barenboim

Mavromatos

2005

J. High Energy Phys.

126

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Decoherence has the potential to explain all existing neutrino data including LSND results, without enlarging the neutrino sector. This particular form of CPT violation can preserve the equality of masses and mixing angles between particle and antiparticle sectors, and still provide seizable differences in the oscillation patterns. A simplified minimal model of decoherence can explain the existing neutrino data as well as the standard three oscillation scenario, while making dramatic predictions for the upcoming experiments. Such a model can easily accomodate the LSND result but cannot fit the spectral distortions seen by KamLAND. Some comments on the order of the decoherence parameters in connection with theoretically expected values from some models of quantum-gravity are given. In particular, the quantum gravity decoherence as a primary origin of the neutrino mass differences scenario is explored, and even a speculative link between the neutrino mass-difference scale and the dark energy density component of the Universe today is drawn.

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Section: Combining Decoherence Oscillations and The Lsnd Resultssupporting

confidence: 84%

Section: Combining Decoherence Oscillations and The Lsnd Resultsmentioning

confidence: 58%

Section: Instead Of Conclusionmentioning

confidence: 97%

See 1 more Smart Citation

CPT violating decoherence and LSND: a possible window to planck scale physics

Barenboim

Mavromatos

2005

J. High Energy Phys.

126

View full text Add to dashboard Cite

show abstract

“…The most striking consequence will be seen in MiniBooNE [100], According to our picture, MiniBooNE will be able to confirm LSND only when running in the antineutrino mode and not in the neutrino one, as decoherence effects live only in the former. Smaller but experimentally accessible signatures will be seen also in MINOS [86], by comparing conjugated channels (most noticeably, the muon survival probability).…”

Section: Cptv Decoherence and Ultra Cold Neutronsmentioning

confidence: 58%

CPT Violation and Decoherence in Quantum Gravity

Mavromatos¹

Lecture Notes in Physics

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In these lectures I review, in as much pedagogical way as possible, various theoretical ideas and motivation for violation of CPT invariance in some models of Quantum Gravity, and discuss the relevant phenomenology. Since the subject is vast, I pay particular emphasis on the CPT Violating decoherence scenario for quantum gravity, due to space-time foam. In my opinion this seems to be the most likely scenario to be realised in Nature, should quantum gravity be responsible for the violation of this symmetry. In this context, I also discuss how the CPT Violating decoherence scenario can explain experimental "anomalies" in neutrino data, such as LSND results, in agreement with the rest of the presently available data, without enlarging the neutrino sector.

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Discriminating neutrino mass models using type-II see-saw formula

2006

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In this paper we propose a kind of natural selection which can discriminate the three possible neutrino mass models, namely the degenerate, inverted hierarchical and normal hierachical models, using the framework of Type II seesaw formula. We arrive at a conclusion that the inverted hierarchical model appears to be most favourable whereas the normal hierarchical model follows next to it. The degenerate model is found to be most unfavourable. The neutrino mass matrices which are obtained using the usual canonical seesaw formula (Type I), and which also give almost good predictions of neutrino masses and mixings consistent with the latest neutrino oscillation data, are re-examined in the light of non-canonical seesaw formula (Type II). We then estimate a parameter γ which represents the minimum degree of suppression of the extra term arising from the left-handed Higgs triplet, so as to restore the good predictions on neutrino masses and mixings already had in Type I seesaw model.

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BooNE has begun

Cited by 4 publications

References 8 publications

CPT violating decoherence and LSND: a possible window to planck scale physics

CPT violating decoherence and LSND: a possible window to planck scale physics

CPT Violation and Decoherence in Quantum Gravity

Discriminating neutrino mass models using type-II see-saw formula

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