Within the last year
Within the past 3 years
1 - 10 of 60 articles
The experimentally established sign of the π 0 → 2 γ matrix element is used to discriminate between various models of elementary particles and of the decay mechanism. The quark model seems to be excluded.
Measurements of the differential production cross sections of pions, kaons, protons, and antiprotons from 12.3-BeV/ c protons incident upon copper and beryllium targets were made at the Zero-Gradient Synchrotron at Argonne National Laboratory. These measurements were taken at production angles...
It is noted that CPT invariance can be tested by comparing the charge asymmetry in K 2 0 → π ± l ∓ ν with certain terms in the time distribution of the decay K 0 → π l ν . It is pointed out that, under reasonable assumptions, the charge asymmetries for the electronic and muonic decay...
In the ρ bootstrap, the generalized potential is usually computed by assuming that the ρ resonance is the main feature of the scattering amplitude in the crossed channels, making the narrow-width approximation, and using crossing symmetry to obtain the generalized potential in the direct...
An estimate is made for the contribution of the decuplet poles to the weak decays of hyperons using the Rarita-Schwinger formalism for spin- 3 2 fields. SU ( 3 ) symmetry is used in conjunction with the Gourdin-Salin model for the D - B - π and D - B - γ couplings. It is shown that the decuplet...
A new approach to the problem of the singularity of the weak interactions is presented. Its aim is to provide a theoretical interpretation of the extreme smallness of the violation of selection rules associated with the weak-vector-current operator appearing in the conventional Fermi or...
Among a sample of 1222 mesonically decaying hypernuclei of range greater than 20 μ, we have observed three cases of π + decay of He 4 Λ . We estimated the total number of π - decays of He 4 Λ to be 184±52. This yields a π + -to- π - branching ratio of (1.6±1.3)%. This value is lower than...
Isovector electromagnetic form factors are calculated by dispersion-theoretic methods, keeping only the two-pion intermediate states. The pion form factor, which plays a particularly important role, is obtained from effective-range theory and a comparison with data from recent colliding-beam...
Read and print from thousands of top scholarly journals.
Sign up with Facebook
Sign up with Google
Already have an account? Log in
Save this article to read later. You can see your Read Later on your DeepDyve homepage.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Sign Up Log In
To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don’t already have one.
To get new article updates from a journal on your personalized homepage, please log in first, or sign up for a DeepDyve account if you don’t already have one.