Telling Three from Four Neutrino Scenarios

نویسنده

  • D. MELONI
چکیده

In this talk I will consider the possibility of distinguish the usual three neutrino model from scenarios in which a light sterile neutrino is also present. I will show that the confusion with the so-called 3+1 scheme can arise in some particular region of the parameter space whereas it is essentially absent for the 2+2 scheme. Then I will discuss the ambiguities in the determination of the CP-violating phase δ.

برای دانلود 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

Telling three from four neutrinos at the Neutrino Factory

We upgrade the study of the physical reach of a Neutrino Factory considering the possibility to distinguish a three (active) neutrino oscillation scenario from the scenario in which a light sterile neutrino is also present. The distinction is easily performed in the so–called 2+2 scheme, but also in the more problematic 3+1 scheme it can be attained in some regions of the parameter space. We al...

متن کامل

Short-Baseline Neutrino Oscillations at a Neutrino Factory

Within the framework of three-neutrino and four-neutrino scenarios that can describe the results of the LSND experiment, we consider the capabilities of short baseline neutrino oscillation experiments at a neutrino factory. We find that, when short baseline (L ∼ 100 km) neutrino factory measurements are used together with other accelerator-based oscillation results, the complete three-neutrino ...

متن کامل

Neutrino Masses and Mixings

Theoretical prejudices, cosmology, and neutrino oscillation experiments all suggest neutrino masses are far below present direct experimental limits. Four interesting scenarios and their implications are discussed: (I) a 17 keV v,, (2) a 30 eVv, making up the dark matter, (3) a 10e3 eVu,, 10 solve the solar neutrino problem, and (4) a three-neutrino M S W solution. @ L. Wolfenstein 1992

متن کامل

Constraints from Neutrino Oscillation Experiments on the Effective Majorana Mass in Neutrinoless Double β-Decay

We determine the possible values of the effective Majorana neutrino mass |〈m〉| = |∑j U2 ejmj| in the different phenomenologically viable three and four-neutrino scenarios. The quantities Uαj (α = e, μ, τ, . . .) denote the elements of the neutrino mixing matrix and the Majorana neutrino masses mj ∗Also at: Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784,...

متن کامل

Off – axis Beams and Detector Clusters : Resolving Neutrino Parameter Degeneracies

There are three parameter degeneracies inherent in the three–neutrino analysis of long–baseline neutrino experiments. We develop a systematic method for determining whether or not a set of measurements in neutrino oscillation appearance experiments with approximately monoenergetic beams can completely resolve these ambiguities. We then use this method to identify experimental scenarios in which...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002