title: Analyzing power Ay(θ) of n-3He elastic scattering between 1.60 and 5.54 MeV.
abstract: Comprehensive and high-accuracy n-3He elastic scattering analyzing power Ay(θ) angular distributions were obtained at five incident neutron energies between 1.60 and 5.54 MeV. The data are compared to rigorous four-nucleon calculations using high-precision nucleon-nucleon potential models; three-nucleon force effects are found to be very small. The agreement between data and calculations is fair at the lower energies and becomes less satisfactory with increasing neutron energy. Comparison to p-3He scattering over the same energy range exhibits unexpectedly large isospin effects.
authors.affiliation: Duke University, Durham, North Carolina 27708-0308, USA and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308, USA.
authors.forename: J
authors.initials: J
authors.lastname: Esterline
authors.affiliation: Duke University, Durham, North Carolina 27708-0308, USA and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308, USA.
authors.forename: W
authors.initials: W
authors.lastname: Tornow
authors.affiliation: Centro de Física Nuclear da Universidade de Lisboa, P-1649-003 Lisboa, Portugal.
authors.forename: A
authors.initials: A
authors.lastname: Deltuva
authors.affiliation: Centro de Física Nuclear da Universidade de Lisboa, P-1649-003 Lisboa, Portugal.
authors.forename: A C
authors.initials: AC
authors.lastname: Fonseca