RADIATIVE CAPTURE OF POLARIZED NEUTRONS BY POLARIZED PROTONS
نویسندگان
چکیده
منابع مشابه
Radiative capture of neutrons by protons
A model-independent irreducible tensor approach to p(n, γ)d is presented and an explicit form for the spin-structure of the matrix M for the reaction is obtained in terms of the Pauli spin-matrices σ(n) and σ(p). Expressing the multipole amplitudes in terms of the triplet → triplet and singlet → triplet transitions, we point out how the initial singlet and triplet contributions to the different...
متن کاملSUSANS With Polarized Neutrons
Super Ultra-Small Angle Neutron Scattering (SUSANS) studies over wave vector transfers of 10(-4) nm(-1) to 10(-3) nm(-1) afford information on micrometer-size agglomerates in samples. Using a right-angled magnetic air prism, we have achieved a separation of ≈10 arcsec between ≈2 arcsec wide up- and down-spin peaks of 0.54 nm neutrons. The SUSANS instrument has thus been equipped with the polari...
متن کاملImaging with Polarized Neutrons
Neutrons have zero net electrical charge and can thus penetrate deeply into matter, but their intrinsic magnetic moment makes them highly sensitive to magnetic fields. These properties have been combined with radiographic (2D) and tomographic (3D) imaging methods to provide a unique technique to probe macroscopic magnetic phenomena both within and around bulk matter. Based on the spin-rotation ...
متن کاملPolarized Protons in HERA
Polarized proton beams at HERA can currently only be produced by extracting a beam from a polarized source and then accelerating it in the three synchrotrons at DESY. In this paper, the processes which can depolarize a proton beam in circular accelerators are explained, devices which could avoid this depolarization in the DESY accelerator chain are described, and specific problems which become ...
متن کاملDirect radiative capture of p-wave neutrons.
The neutron direct radiative capture (DRC) process is investigated, highlighting the role of incident p-wave neutrons. A set of calculations is shown for the C(n; ) process at incoming neutron energies up to 500 keV, a crucial region for astrophysics. The cross section for neutron capture leading to loosely bound s, p and d orbits of C is well reproduced by the DRC model demonstrating the feasi...
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: Modern Physics Letters A
سال: 2004
ISSN: 0217-7323,1793-6632
DOI: 10.1142/s0217732304013696