scholarly journals Sterile-active neutrino oscillations and shortcuts in the extra dimension

2005 ◽  
Vol 72 (9) ◽  
Author(s):  
Heinrich Päs ◽  
Sandip Pakvasa ◽  
Thomas J. Weiler
2012 ◽  
Vol 2012 ◽  
pp. 1-17 ◽  
Author(s):  
S. N. Gninenko ◽  
D. S. Gorbunov ◽  
M. E. Shaposhnikov

Standard Model fails to explain neutrino oscillations, dark matter, and baryon asymmetry of the Universe. All these problems can be solved with three sterile neutrinos added to SM. Quite remarkably, if sterile neutrino masses are well below the electroweak scale, this modification—Neutrino Minimal Standard Model (νMSM)—can be tested experimentally. We discuss a new experiment on search for decays of GeV-scale sterile neutrinos, which are responsible for the matter-antimatter asymmetry generation and for the active neutrino masses. If lighter than 2 GeV, these particles can be produced in decays of charm mesons generated by high energy protons in a target, and subsequently decay into SM particles. To fully explore this sector ofνMSM, the new experiment requires data obtained with at least1020incident protons on target (achievable at CERN SPS in future) and a big volume detector constructed from a large amount of identical single modules, with a total sterile neutrino decay length of few kilometers. The preliminary feasibility study for the proposed experiment shows that it has sensitivity which may either lead to the discovery of new particles below the Fermi scale—right-handed partners of neutrinos—or rule out seesaw sterile neutrinos with masses below 2 GeV.


2001 ◽  
Vol 512 (3-4) ◽  
pp. 365-372 ◽  
Author(s):  
Stephan J. Huber ◽  
Qaisar Shafi

1986 ◽  
Vol 150 (12) ◽  
pp. 632
Author(s):  
S.P. Mikheev ◽  
A.Yu. Smirnov

Uro ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 14-22
Author(s):  
Tommaso Cai ◽  
Paolo Verze ◽  
Truls E. Bjerklund Johansen

The quality of life (QoL) concept now includes new aspects related to patients’ well-being because QoL has become more of a personal perception than an an objective and measurable entity. Here, we discuss the principal aspects of QoL-related aspects in urology and andrology by using a narrative review. Some aspects concerning the QoL are essential when managing uro-andrological patients. The aim of treatments should not only include the absence of disease or symptoms relief but also the improvement of a patient’s QoL with regard to his/her internal status and relationship with others. In this sense, any therapeutic approach should be based on the patient’s perspectives and not only on the instrumental and laboratory findings. Finally, we discussed the role of a patient’s sexual partner adding an extra dimension to the patient-centerd approach as part of the QoL concept in andrology.


2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
Sebastian A. R. Ellis ◽  
Kevin J. Kelly ◽  
Shirley Weishi Li

Abstract The unitarity of the lepton mixing matrix is a critical assumption underlying the standard neutrino-mixing paradigm. However, many models seeking to explain the as-yet-unknown origin of neutrino masses predict deviations from unitarity in the mixing of the active neutrino states. Motivated by the prospect that future experiments may provide a precise measurement of the lepton mixing matrix, we revisit current constraints on unitarity violation from oscillation measurements and project how next-generation experiments will improve our current knowledge. With the next-generation data, the normalizations of all rows and columns of the lepton mixing matrix will be constrained to ≲10% precision, with the e-row best measured at ≲1% and the τ-row worst measured at ∼10% precision. The measurements of the mixing matrix elements themselves will be improved on average by a factor of 3. We highlight the complementarity of DUNE, T2HK, JUNO, and IceCube Upgrade for these improvements, as well as the importance of ντ appearance measurements and sterile neutrino searches for tests of leptonic unitarity.


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