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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

What measurements of neutrino neutral current events can reveal

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Autor(es):
Gandhi, Raj [1] ; Kayser, Boris [2] ; Prakash, Suprabh [3] ; Roy, Samiran [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Harish Chandra Res Inst, HBNI, Chhatnag Rd, Allahabad 211019, Uttar Pradesh - India
[2] Fermilab Natl Accelerator Lab, Theoret Phys Dept, POB 500, Batavia, IL 60510 - USA
[3] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Journal of High Energy Physics; n. 11 NOV 29 2017.
Citações Web of Science: 2
Resumo

We show that neutral current (NC) measurements at neutrino detectors can play a valuable role in the search for new physics. Such measurements have certain intrinsic features and advantages that can fruitfully be combined with the usual well-studied charged lepton detection channels in order to probe the presence of new interactions or new light states. In addition to the fact that NC events are immune to uncertainties in standard model neutrino mixing and mass parameters, they can have small matter effects and superior rates since all three flavours participate. We also show, as a general feature, that NC measurements provide access to different combinations of CP phases and mixing parameters compared to CC measurements at both long and short baseline experiments. Using the Deep Underground Neutrino Experiment (DUNE) as an illustrative setting, we demonstrate the capability of NC measurements to break degeneracies arising in CC measurements, allowing us, in principle, to distinguish between new physics that violates three flavour unitarity and that which does not. Finally, we show that NC measurements can enable us to restrict new physics parameters that are not easily constrained by CC measurements. (AU)

Processo FAPESP: 14/19164-6 - Desafios para o século XXI em física e astrofísica de neutrinos
Beneficiário:Orlando Luis Goulart Peres
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 17/02361-1 - À procura de nova física em experimentos de neutrinos
Beneficiário:Suprabh Prakash
Linha de fomento: Bolsas no Brasil - Pós-Doutorado