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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:39 |
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Conference: Bucharest University Faculty of Physics 2010 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
About the possibility to measure some Standard Model parameters and search for new physics with low energy neutrinos
Authors:
Ionel Lazanu (*)
Affiliation:
University of Bucharest, Faculty of Physics, POBox MG-11, Bucharest-Măgurele, Romania
E-mail
ionel.lazanu@g.unibuc.ro
Keywords:
Standard Model, Weinberg angle, neutrino interaction, low energy, physics beyond SM
Abstract:
The Standard Model (SM) provides an accurate description of phenomena in nuclear and particle physics. Despite its success, the SM is shown to be incomplete, in the neutrino, dark matter or dark energy sectors for example.
The Weinberg angle, defined in connection with the ratio between the masses of W and Z bosons, is one of the key parameters of the theory. Its value was measured with a high precision in the region of the Z – pole and the confirmation of the results in the low energy range is considered an essential test for the theory [1], [2].
We explore the possibility of measuring the Weinberg angle in neutrino-electron scattering at low energy, using neutrinos from electron capture processes in nuclei using Glacier [3] as liquid argon time projection chamber detector. The measurement of neutrino elastic scattering is also a sensitive tool to probe non standard interactions, as new physics beyond the SM, in particular unparticle phenomenology [4] putting in evidence the effects of virtual unparticles exchanged between fermionic currents.The possibility to study neutrino oscillations is also considered.
References
[1] A.B. Balantekin et. al., Phys.Lett.B634:180-184, 2006
[2] J. Barranco et. al., Phys.Rev.D79:073011, 2009
[3] www.laguna-science.eu
[4] H. Georgi, Phys.Rev.Lett.98:221601, 2007
(*) On behalf of the Romanian group in LAGUNA Collaboration
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