Optical Detection of Microwave Transitions in Electronically Excited CN Produced by a Chemical Reaction

Barger, R. L.; Broida, H. P.; Estin, A. J.; Radford, H. E.

doi:10.1103/physrevlett.9.345

Cited by 26 publications

(7 citation statements)

References 3 publications

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“…As shown in the last paper in [17], many sterile neutrinos cannot give a much better 3+1 fit than a single sterile neutrino. Of particular interest are minimal models where right-handed neutrinos live in a single extra dimension of radius R [25], that could be identified with the LSND scale.…”

Section: Many Sterile Neutrinosmentioning

confidence: 92%

“…Within this scheme, the sterile neutrino is employed to generate the solar or atmospheric anomaly, or one combination of the two. The fraction of sterile neutrino involved in solar oscillations, η , is predicted to sum to unity [17] Experiments now tell that both the solar and atmospheric anomalies are mostly generated by active neutrinos, and only a small sterile contribution is allowed. Consequently 2+2 oscillations give a global fit worse than 3+1 oscillations [22,20].…”

Section: +2 Neutrinosmentioning

confidence: 99%

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Interpreting the LSND anomaly: sterile neutrinos or CPT-violation or…?

2002

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We first study how sterile neutrinos can fit the 5σν µ →ν e LSND anomaly: 2+2 solutions are strongly disfavoured by solar and atmospheric data, while 3+1 solutions can still give a poor fit (for a specific range of oscillation parameters, to be tested by MiniBooNE). If MiniBooNE will see no ν µ → ν e transitions, we will have a hint for CPT violation. Already now, unlike sterile neutrinos, CPT-violating neutrino masses can accomodate all safe and unsafe data. We study how much CPT must be conserved according to atmospheric and K2K data and list which CPT-violating signals could be discovered by forthcoming solar and long-baseline experiments.

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Section: Many Sterile Neutrinosmentioning

confidence: 92%

Section: +2 Neutrinosmentioning

confidence: 99%

Interpreting the LSND anomaly: sterile neutrinos or CPT-violation or…?

2002

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“…This led to the paradox of three ∆m 2 values all of different orders of magnitude; this is impossible if there are only three neutrino masses. The more common way to account for all the existing oscillation data is to introduce one or more "sterile" neutrino flavors [9]. A more recent idea, motivated by extra-dimensions models, has been to introduce maximal CP T violation in the neutrino mass matrix, thereby giving neutrinos and antineutrinos differing mass hierarchies [10].…”

Section: Physics Introduction: Lsnd and Karmenmentioning

confidence: 99%

BooNE has begun

Zimmerman

2003

Nuclear Physics B - Proceedings Supplements

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“…Latest analysis of the LSND data [7] shows in further shift of the allowed region of oscillation parameters to smaller values of mixing angle. This leads to a better agreement between the bounds obtained in CDHS [14], CCFR [15] and Bugey [16] experiments and the LSND result in the context of (3 + 1)-mass scheme [10,17,18].…”

Section: Introductionmentioning

confidence: 56%

(3+1)-spectrum of neutrino masses: A chance for LSND?

Peres

2001

Nuclear Physics B - Proceedings Supplements

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If active to active neutrino transitions are dominant modes of the atmospheric (ν µ → ν τ ) and the solar neutrino oscillations (ν e → ν µ /ν τ ), as is indicated by recent data, the favoured scheme which accommodates the LSND result -the so called (2+2)scheme -should be discarded. We introduce the parameters η atm s and η sun s which quantify an involvement of the sterile component in the solar and atmospheric neutrino oscillations. The (2+2)-scheme predicts η atm s +η sun s= 1 and the experimental proof of deviation from this equality will discriminate the scheme. In this connection the (3+1)scheme is revisited in which the fourth (predominantly sterile) neutrino is isolated from a block of three flavour neutrinos by the mass gap ∆m 2 LSN D ∼ (0.4 − 10) eV 2 . We find that in the (3 + 1)-scheme the LSND result can be reconciled with existing bounds on ν e -and ν µ -disappearance at 95−99% C.L.. The generic prediction of the scheme is the ν e -and ν µ -disappearance probabilities at the level of present experimental bounds.The possibility to strengthen the bound on ν µ -disappearance in the KEK -front detector experiment is studied. We consider phenomenology of the (3 + 1)-scheme, in particular, its implications for the atmospheric neutrinos, neutrinoless double beta decay searches, supernova neutrinos and primordial nucleosynthesis.

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Optical Detection of Microwave Transitions in Electronically Excited CN Produced by a Chemical Reaction

Cited by 26 publications

References 3 publications

Interpreting the LSND anomaly: sterile neutrinos or CPT-violation or…?

Interpreting the LSND anomaly: sterile neutrinos or CPT-violation or…?

BooNE has begun

(3+1)-spectrum of neutrino masses: A chance for LSND?

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