Muon capture on the deuteron and the neutron-neutron scattering length
نویسندگان
چکیده
منابع مشابه
Muon capture on the proton and deuteron
By measuring the lifetime of the negative muon in pure protium (H), the MuCap experiment determines the rate of muon capture on the proton, from which the proton’s pseudoscalar coupling gp may be inferred. A precision of 15% for gp has been published; this is a step along the way to a goal of 7%. This coupling can be calculated precisely from heavy baryon chiral perturbation theory and therefor...
متن کاملChiral 3NF and neutron-deuteron scattering
Results on three-nucleon (3N) elastic scattering below the pion production threshold are discussed with emphasis on the need for a three-nucleon force (3NF). The large discrepancies found between a theory based on numerical solutions of 3N Faddeev equations with (semi)phenomenological NN potentials only and data point to the need for 3NF’s. This is further supported since another possible reaso...
متن کاملCan one extract the π - neutron scattering length from π - deuteron scattering ?
We give a prove of evidence that the original power counting by Weinberg can be applied to estimate the contributions of the operators contributing to the πdeuteron scattering length. As a consequence, π-deuteron observables can be used to extract neutron amplitudes—in case of π-deuteron scattering this means that the π-neutron scattering length can be extracted with high accuracy. This result ...
متن کاملExtracting the neutron-neutron scattering length — recent developments
The experimental and theoretical issues and challenges for extracting the neutron-neutron scattering length are discussed. Particular emphasis is placed on recent results and their impact on the field. Comments are made regarding current experimental and theoretical possibilities. PACS numbers: 11.30.Hv, 13.75.Cs, 21.30.Cb, 21.45.Bc, 25.40.Dn, 14.20.Dh
متن کاملCompton scattering from the deuteron and extracted neutron polarizabilities.
Differential cross sections for Compton scattering from the deuteron were measured at MAX-Lab for incident photon energies of 55 and 66 MeV at nominal laboratory angles of 45 degrees, 125 degrees, and 135 degrees. Tagged photons were scattered from liquid deuterium and detected in three NaI spectrometers. By comparing the data with theoretical calculations in the framework of a one-boson-exchan...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 2014
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.90.054001