TY - JOUR
T1 - Systematic few-body analysis of ηd, η He 3, and η He 4 interaction at low energies SYSTEMATIC FEW-BODY ANALYSIS of ηd, ⋯ A. FIX and O. KOLESNIKOV
AU - Fix, A.
AU - Kolesnikov, O.
PY - 2018/4/13
Y1 - 2018/4/13
N2 - The Alt-Grassberger-Sandhas N-body theory is used to study interaction of η mesons with d, He3, and He4. Separable expansion of the subamplitudes is adopted to convert the integral equations into the quasi-two-body form. The resulting formalism is applied to fit the existing data for low-energy η production of few-nucleon targets. On the basis of this fitting procedure the scattering lengths aηd, aηHe3, aηHe4 as well as the subthreshold behavior of the elementary ηN scattering amplitude are obtained.
AB - The Alt-Grassberger-Sandhas N-body theory is used to study interaction of η mesons with d, He3, and He4. Separable expansion of the subamplitudes is adopted to convert the integral equations into the quasi-two-body form. The resulting formalism is applied to fit the existing data for low-energy η production of few-nucleon targets. On the basis of this fitting procedure the scattering lengths aηd, aηHe3, aηHe4 as well as the subthreshold behavior of the elementary ηN scattering amplitude are obtained.
UR - http://www.scopus.com/inward/record.url?scp=85045389037&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85045389037&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.97.044001
DO - 10.1103/PhysRevC.97.044001
M3 - Article
AN - SCOPUS:85045389037
VL - 97
JO - Physical Review C
JF - Physical Review C
SN - 2469-9985
IS - 4
M1 - 044001
ER -