Three nucleon force effects in intermediate-energy deuteron analyzing powers for dp elastic scattering

A complete high precision set of deuteron analyzing powers for elastic deuteron-proton (dp) scattering at 250 MeV/nucleon (MeV/N) has been measured. The new data are presented together with data from previous measurements at 70, 100, 135 and 200 MeV/N. They are compared with the results of three-nuc...

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Bibliographic Details
Published in:Physical review. C, Nuclear physics Nuclear physics, 2011-06, Vol.83 (6), Article 061001
Main Authors: Sekiguchi, K., Okamura, H., Sakamoto, N., Suzuki, H., Dozono, M., Maeda, Y., Saito, T., Sakaguchi, S., Sakai, H., Sasano, M., Shimizu, Y., Wakasa, T., Yako, K., Witała, H., Glöckle, W., Golak, J., Kamada, H., Nogga, A.
Format: Article
Language:English
Subjects:
ACCURACY
BARYONS
CHARGED PARTICLES
CROSS SECTIONS
DEUTERONS
DIMENSIONLESS NUMBERS
ELASTIC SCATTERING
ELEMENTARY PARTICLES
ENERGY RANGE
EQUATIONS
FADDEEV EQUATIONS
FERMIONS
HADRONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEON-NUCLEON POTENTIAL
NUCLEONS
POLARIZATION-ASYMMETRY RATIO
POTENTIALS
PROTONS
RELATIVISTIC RANGE
SCATTERING
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Summary:A complete high precision set of deuteron analyzing powers for elastic deuteron-proton (dp) scattering at 250 MeV/nucleon (MeV/N) has been measured. The new data are presented together with data from previous measurements at 70, 100, 135 and 200 MeV/N. They are compared with the results of three-nucleon (3N) Faddeev calculations based on modern nucleon-nucleon (NN) potentials alone or combined with two models of three nucleon forces (3NFs): the Tucson-Melbourne 99 (TM99) and Urbana IX. At 250 MeV/N large discrepancies between pure NN models and data, which are not resolved by including 3NFs, were found at c.m. backward angles of {theta}{sub c.m.} > or approx. 120 deg. for almost all the deuteron analyzing powers. These discrepancies are quite similar to those found for the cross section at the same energy. We found small relativistic effects that cannot resolve the discrepancies with the data indicating that other, short-ranged 3NFs are required to obtain a proper description of the data.
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.83.061001