“secret” Neutrino Interactions

نویسنده

  • MIKHAIL BILENKY
چکیده

We review the information about a potentially strong non-standard four-neutrino interaction that can be obtained from available experimental data. By using LEP results and nucleosynthesis data we find that a contact four-fermion neutrino interaction that involve only left-handed neutrinos or both left-handed and right-handed neutrinos cannot be stronger than the standard weak interactions. A much stronger interaction involving only right-handed neutrinos is still allowed.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Cosmological neutrino mass detection: The best probe of neutrino lifetime

Future cosmological data may be sensitive to the effects of a finite neutrino mass even as small as the ∼0.05 eV lower limit guaranteed by neutrino oscillation experiments. We show that a cosmological detection of neutrino mass in agreement with expectations would improve by many orders of magnitude the existing limits on neutrino lifetime, and as a consequence on neutrino secret interactions w...

متن کامل

Non-Standard Neutrino Interactions and Neutrino Oscillation Experiments

In analyzing neutrino oscillation experiments it is often assumed that while new physics contributes to neutrino masses, neutrino interactions are given by the Standard Model. We develop a formalism to study new physics effects in neutrino interactions using oscillation experiments. We argue that the notion of branching ratio is not appropriate in this case. We show that a neutrino appearance e...

متن کامل

ar X iv : h ep - p h / 00 09 09 2 v 1 7 S ep 2 00 0 1 Status of the solutions to neutrino

We review the status of the solutions to neutrino anomalies by flavor-changing as well as flavor-diagonal neutrino interactions. While it is difficult to explain the atmospheric neutrino data the solar neutrino data can be well accounted for by the massless neutrino oscillation induced by such non-standard neutrino interactions. We also discuss the possibility to test such kind of interactions ...

متن کامل

Experimental status of neutrino scattering physics and needed measurements

Knowledge of neutrino interactions with a nuclear target at the neutrino energy around sub-GeV is recently getting more and more important as necessary information for accelerator based neutrino oscillation experiments. A study of neutrino interactions contains rich physics of neutrinos with nucleus, and is used to reveal the properties of neutrinos in the oscillation measurements. We review th...

متن کامل

Neutrino Interactions

The study of neutrino interaction physics played an important role in establishing the validity of the theory of weak interactions and electroweak unification. Today, however, the study of interactions of neutrinos takes a secondary role to studies of the properties of neutrinos, such as masses and mixings. This brief introduction describes the historical role that the understanding of neutrino...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999