Low-Energy Neutron-Neutron Scattering Parameters

How low-energy weak reactions can constrain three-nucleon forces and the neutron-neutron scattering length.

We show that chiral symmetry and gauge invariance enforce relations between the short-distance physics that occurs in a number of electroweak and pionic reactions on light nuclei. Within chiral perturbation theory, this is manifested via the appearance of the same axial isovector two-body contact term in pi(-)d --> nngamma, p-wave pion production in NN collisions, tritium beta decay, pp fusion,...

Neutron Moderator Development Research at the Low Energy Neutron Source

The Low Energy Neutron Source at Indiana University completed its construction phase roughly three years ago, and one of the more active research thrusts at the facility since that time has been our attempts to advance the state of the art in neutron moderation. This research program includes basic materials characterization, especially total neutron cross section measurements, as well as in-si...

Boron Neutron Capture Therapy (BNCT) - Low-Energy Neutron Spectrometer for Neutron Field Characterization -∗)

Boron Neutron Capture Therapy (BNCT) is known to be a promising and new cancer therapy which can kill tumor cells suppressing damage to normal tissues. Recently, accelerator based neutron sources (ABNS) for BNCT are under development especially in Japan. For characterization of the neutron field, we carried out the series study concerning thermal/epi-thermal neutron spectrometry especially for ...

Charge asymmetry of the nuclear interaction and neutron-neutron scattering parameters.

Analyses of bound systems and low-energy scattering experiments give clear evidence of a departure from charge symmetry in the nuclear interaction. Furthermore, this effect could be enhanced in a nuclear medium thereby solving the Nolen-Schiffer anomaly observed in mirror nuclei. Since the extraction of the n-n scattering parameters is tied to the theoretical analysis of particular nuclear reac...

Introduction to Neutron Scattering