On the muon – nucleus integrals entering the neutrinoless μ − → e − conversion rates

نویسندگان

  • T S Kosmas
  • I E Lagaris
چکیده

The muon–nucleus integrals which determine the nuclear-structure dependence of the branching ratio R µe , i.e. the rate of the flavour-changing muon–electron conversion divided by the total rate of the ordinary muon capture, are extensively studied. Precise muon wavefunctions are employed which are obtained by solving the Schrödinger and Dirac equations. To this aim a method based on modern neural network techniques is developed which gives the radial muon wavefunctions as a linear combination of sigmoid functions.

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

More on R − parity and lepton – family number violating couplings from muon ( ium ) conversion , and τ and π 0 decays

We present a new class of constraints to the lepton–family number and R−parity violating couplings from muonium conversion, μ− + 48 22Ti → e− + 48 22Ti, a class of tau decays, τ → l+ (light meson) with l = μ or e, and J/ψ and π0 decays into a lepton pair. We find that μ− + 48 22Ti → e− + 48 22Ti provides one of the strongest constraints along with ∆mK ,∆mB, μ → eγ and the neutrinoless double β ...

متن کامل

ar X iv : 0 80 9 . 02 63 v 2 [ he p - ph ] 2 9 Se p 20 08 CP violating phases in μ − e conversion

Experiments are planned to improve the sensitivity of μ − e conversion from the current ∼ 10 to ∼ 10 − 10. If the muon (bound to the nucleus) could be polarised, a spin asymmetry of the final state electron is sensitive to CP violating phases on lepton flavour violating operators. This is similar to extracting phases from asymmetries in the final state spin and phase space distributions of μ → ...

متن کامل

ar X iv : 0 80 9 . 02 63 v 1 [ he p - ph ] 1 S ep 2 00 8 CP violating phases in μ − e conversion

Experiments are planned to improve the sensitivity of μ − e conversion from the current ∼ 10 to ∼ 10 − 10. If the muon (bound to the nucleus) could be polarised, a spin asymmetry of the final state electron is sensitive to CP violating phases on lepton flavour violating operators. This is similar to extracting phases from asymmetries in the final state spin and phase space distributions of μ → ...

متن کامل

Implication of improved upper bounds on |1L| = 2 processes

We discuss implications of improved upper bounds on the |1L| = 2 processes (i) K+ → π−μ+μ+, from an experiment at BNL, and (ii) μ− → e+ conversion, from an experiment at PSI. In particular, we address the issue of constraints on neutrino masses and mixing, and on supersymmetric models with R-parity violation.  2000 Published by Elsevier Science B.V. PACS: 13.20.Eb; 14.60.Pq; 14.60.St; 14.80.Ly...

متن کامل

Muon Storage Ring PRISM - FFAG to Improve a Sensitivity of μ - e Conversion Experiment Below 10 − 17

In experiments to search for the coherent neutrino-less conversion of a muon into an electron in the field of a nucleus, the characteristic of a muon beam can limit the achievable sensitivity. Two main limiting factors of the sensitivity, a backgrounds level and an energy resolution of the conversion electrons, are discussed for the MECO-type experiments. The PRISM/PRIME experiment is a solutio...

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