Resonance-background interference in high-energy phenomena

Compelling evidences in favor of neutrino masses and mixing obtained in the last years in Super-Kamiokande, SNO, KamLAND and other neutrino experiments made the physics of massive and mixed neutrinos a frontier field of research in particle physics and astrophysics. There are many open problems in this new field. In this review we consider the problem of the absolute values of neutrino masses, which apparently is the most difficult one from the experimental point of view. We discuss the present limits and the future prospects of β-decay neutrino mass measurements and neutrinoless double-β decay. We consider the important problem of the calculation of nuclear matrix elements of neutrinoless double-β decay and discuss the possibility to check the results of different model calculations of the nuclear matrix elements through their comparison with the experimental data. We discuss the upper bound of the total mass of neutrinos that was obtained recently from the data of the 2dF Galaxy Redshift Survey and other cosmological data and we discuss future prospects of the cosmological measurements of the total mass of neutrinos. We discuss also the possibility to obtain information on neutrino masses from the observation of the ultra highenergy cosmic rays (beyond the GZK cutoff). Finally, we review the main aspects of the physics of core-collapse supernovae, the limits on the absolute values of neutrino masses from the observation of SN1987A neutrinos and the future prospects of supernova neutrino detection.1

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“…[86] from the combined analysis of solar and KamLAND data (see also Refs. [87,88,89,90,91,92,93,94]). …”

Section: The First Results Of the Kamland Experimentsmentioning

confidence: 99%

Absolute values of neutrino masses: status and prospects

et al. 2003

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“…[4]), we have |U e3 | 2 = sin 2 ϑ 13 , the effective mixing angle measured in solar and reactor experiments is approximately equal to ϑ 12 and the effective mixing angle measured in atmospheric and accelerator experiments is approximately equal to ϑ 23 . An analysis of the data yields large values for ϑ 12 and ϑ 23 [9,18]:…”

Section: Three-neutrino Mixingmentioning

confidence: 99%

“…and in atmospheric and accelerator neutrino experiments (ν μ → ν τ ), with a squared-mass difference [18] …”

Section: Three-neutrino Mixingmentioning

confidence: 99%

“…Recent high precision measurements of density fluctuations in the Cosmic Microwave Background (WMAP) and in the Large Scale Structure distribution of galaxies (2dFGRS, SDSS), combined with other cosmological data, led to stringent upper limits on k m k , of the order of a fraction of eV [27,28,29,18]. The most crucial type of data are the so-called Lyman-α forests, which are absorption lines in the spectra of high-redshift quasars due to intergalactic hydrogen clouds with dimensions of the order of 1-10 Mpc.…”

Section: Cosmological Bounds On Neutrinomentioning

confidence: 99%

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Theory and Phenomenology of Neutrino Oscillations and Masses

Giunti

2007

Nuclear Physics B - Proceedings Supplements

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We review some fundamental aspects of the theory of neutrino masses and mixing. The results of neutrino oscillation experiments are interpreted as evidence of three-neutrino mixing. Implications for the mixing parameters and the neutrino masses are discussed, with emphasis on the connection with the measurements of the absolute values of neutrino masses in beta decay and neutrinoless double-beta decay experiments and cosmological observations.

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“…The contours for the best fit to the data in Figure 1 can be found in Fig 2. Alternative neutrino disappearance models where also fit; including pure neutrino decay [8], disfavoured at >6σ; and neutrino decoherence [9], disfavoured at >8σ.…”

Section: ν µ Disappearancementioning

confidence: 99%

New MINOS Oscillation Results

Jong¹

2010

J. Phys.: Conf. Ser.

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Abstract. The MINOS experiment (Main Injector Neutrino Oscillation Search) is a two detector long-baseline neutrino oscillation experiment. Oscillation parameters are determined by comparing the spectrum and composition of the neutrino beam measured at the far detector with that measured at the near detector. This paper summarises the four main beam neutrino oscillation results: muon neutrino and muon anti-neutrino disappearance, electron neutrino appearance and oscillations to sterile neutrinos, derived from the data collected during MINOS' first four years of operation.

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Resonance-background interference in high-energy phenomena

Cited by 17 publications

References 11 publications

Absolute values of neutrino masses: status and prospects

Absolute values of neutrino masses: status and prospects

Theory and Phenomenology of Neutrino Oscillations and Masses

New MINOS Oscillation Results

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