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Author Bazzocchi, F.; Cerdeño, D.G.; Muñoz, C.; Valle, J.W.F.
Title Calculable inverse-seesaw neutrino masses in supersymmetry Type Journal Article
Year 2010 Publication Physical Review D Abbreviated Journal Phys. Rev. D
Volume 81 Issue 5 Pages 051701 - 5pp
Keywords
Abstract We provide a scenario where naturally small and calculable neutrino masses arise from a supersymmetry-breaking renormalization-group-induced vacuum expectation value. The construction consists of an extended version of the next-to-minimal supersymmetric standard model and the mechanism is illustrated for a universal choice of the soft supersymmetry-breaking parameters. The lightest supersymmetric particle can be an isosinglet scalar neutrino state, potentially viable as WIMP dark matter through its Higgs new boson coupling. The scenario leads to a plethora of new phenomenological implications at accelerators including the Large Hadron Collider.
Address [Bazzocchi, F.] Vrije Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands, Email: fbazzoc@few.vu.nl
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1550-7998 ISBN Medium
Area Expedition Conference
Notes ISI:000276194200005 Approved no
Is ISI yes International Collaboration yes
Call Number (up) IFIC @ elepoucu @ Serial 471
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Author ANTARES Collaboration (Aguilar, J.A. et al); Bigongiari, C.; Emanuele, U.; Gomez-Gonzalez, J.P.; Hernandez-Rey, J.J.; Mangano, S.; Salesa, F.; Toscano, S.; Yepes, H.; Zornoza, J.D.; Zuñiga, J.
Title Measurement of the atmospheric muon flux with a 4 GeV threshold in the ANTARES neutrino telescope Type Journal Article
Year 2010 Publication Astroparticle Physics Abbreviated Journal Astropart Phys.
Volume 33 Issue 2 Pages 86-90
Keywords Atmospheric muons; Depth intensity relation; Potassium-40
Abstract A new method for the measurement of the muon flux in the deep-sea ANTARES neutrino telescope and its dependence on the depth is presented. The method is based oil the observation of coincidence signals in adjacent storeys of the detector. This yields an energy threshold of about 4 GeV. The main sources of optical background are the decay of K-40 and the bioluminescence in the sea water. The K-40 background is used to calibrate the efficiency of the photo-multiplier tubes.
Address [Zaborov, D.] Inst Theoret & Expt Phys, Moscow 117218, Russia, Email: Dmitry.Zaborov@itep.ru
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0927-6505 ISBN Medium
Area Expedition Conference
Notes ISI:000275514800004 Approved no
Is ISI yes International Collaboration yes
Call Number (up) IFIC @ elepoucu @ Serial 485
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Author Aristizabal Sierra, D.; Bazzocchi, F.; de Medeiros Varzielas, I.; Merlo, L.; Morisi, S.
Title Tri/Bi-maximal lepton mixing and leptogenesis Type Journal Article
Year 2010 Publication Nuclear Physics B Abbreviated Journal Nucl. Phys. B
Volume 827 Issue 1-2 Pages 34-58
Keywords
Abstract In models with flavour symmetries added to the gauge group of the Standard Model the CP-violating asymmetry necessary for leptogenesis may be related with low-energy parameters. A particular case of interest is when the flavour symmetry produces exact Tri/Bi-maximal lepton mixing leading to a vanishing CP-violating asymmetry. In this paper we present a model-independent discussion that confirms this always occurs for unflavoured leptogenesis in type I see-saw scenarios, noting however that Tri/Bi-maximal mixing does not imply a vanishing asymmetry in general scenarios where there is interplay between type I and other see-saws. We also consider a specific model where the exact Tri/Bi-maximal mixing is lifted by corrections that can be parametrised by a small number of degrees of freedom and analyse in detail the existing link between low and high-energy parameters – focusing on how the deviations from Tri/Bi-maximal are connected to the parameters governing leptogenesis.
Address [Merlo, L.] Univ Padua, Dipartimento Fis G Galilei, Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy, Email: daristi@lnf.infn.it
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0550-3213 ISBN Medium
Area Expedition Conference
Notes ISI:000272669900002 Approved no
Is ISI yes International Collaboration yes
Call Number (up) IFIC @ elepoucu @ Serial 512
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Author Cases, R.; Ros, E.; Zuñiga, J.
Title Measuring radon concentration in air using a diffusion cloud chamber Type Journal Article
Year 2011 Publication American Journal of Physics Abbreviated Journal Am. J. Phys.
Volume 79 Issue 9 Pages 903-908
Keywords cloud chambers; diffusion; radiation effects; radon; student experiments
Abstract Radon concentration in air is a major concern in lung cancer studies. A traditional technique used to measure radon abundance is the charcoal canister method. We propose a novel technique using a diffusion cloud chamber. This technique is simpler and can easily be used for physics demonstrations for high school and university students.
Address [Cases, R; Ros, E; Zuniga, J] Univ Valencia, CSIC, IFIC, Valencia 22085, Spain, Email: ramon.cases@uv.es
Corporate Author Thesis
Publisher Amer Assoc Physics Teachers Amer Inst Physics Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0002-9505 ISBN Medium
Area Expedition Conference
Notes WOS:000294064300003 Approved no
Is ISI yes International Collaboration no
Call Number (up) IFIC @ elepoucu @ Serial 724
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Author NEMO-3 Collaboration (Arnold R. et al); Martin-Albo, J.; Novella, P.
Title Measurement of the beta beta Decay Half-Life of (130)Te with the NEMO-3 Detector Type Journal Article
Year 2011 Publication Physical Review Letters Abbreviated Journal
Volume 107 Issue 6 Pages 062504
Keywords
Abstract We report results from the NEMO-3 experiment based on an exposure of 1275 days with 661 g of (130)Te in the form of enriched and natural tellurium foils. The beta beta decay rate of (130)Te is found to be greater than zero with a significance of 7.7 standard deviations and the half-life is measured to be T(1/2)(2v)=[7.0 +/- 0.9(stat) +/- 1: 1(syst)] x 10(20) yr. This represents the most precise measurement of this half- life yet published and the first real-time observation of this decay.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0031-9007 ISBN Medium
Area Expedition Conference
Notes WOS:000293562700003 Approved no
Is ISI yes International Collaboration yes
Call Number (up) IFIC @ elepoucu @ Serial 715
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