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Title: Cross sections and tensor analyzing powers A_yy of the reaction ^1H(|vec|d,pp)n in SCRE geometries at E_d=19 MeV

Abstract

We measured the cross sections and tensor analyzing powers of the 1H({approx}d,pp)n breakup reaction at Ed=19 MeV in four symmetric constant relative energy (SCRE) configurations. The data are compared with theoretical predictions from three different approaches: one based on high precision (semi)phenomenological potentials alone or combined with model three-nucleon forces, another on chiral forces up to next-to-next-to-leading order (NNLO) in the chiral expansion. In both cases, the Coulomb interaction is not included. In addition, a comparison to predictions based on CD Bonn including the Lambda excitation and the Coulomb force is presented. In all cases the measured cross sections are significantly below the theoretical values whereas the magnitude of the tensor analyzing powers agree within the error bars in three of the four cases. The apparent discrepancies in the breakup cross sections are similar to the known differences for the space-star breakup. This adds to the data base of unsolved low-energy discrepancies.

Authors:
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Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA
Sponsoring Org.:
USDOE - Office of Energy Research (ER)
OSTI Identifier:
876569
Report Number(s):
JLAB-THY-06-471; DOE/ER/40150-3786
TRN: US0601212
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACCURACY; BREAKUP REACTIONS; CROSS SECTIONS; EXCITATION; POLARIZATION-ASYMMETRY RATIO

Citation Formats

J. Ley, C. Dueweke, A. Emmerich, A. Imig, H. Paez gen. Schieck, J. Golak, H. Witala, Evgeny Epelbaum, A. Deltuva, A. C. Fonseca, W. Gloeckle, Ulf-G. Meissner, A. Nogga, and P. U. Sauer. Cross sections and tensor analyzing powers A_yy of the reaction ^1H(|vec|d,pp)n in SCRE geometries at E_d=19 MeV. United States: N. p., 2006. Web.
J. Ley, C. Dueweke, A. Emmerich, A. Imig, H. Paez gen. Schieck, J. Golak, H. Witala, Evgeny Epelbaum, A. Deltuva, A. C. Fonseca, W. Gloeckle, Ulf-G. Meissner, A. Nogga, & P. U. Sauer. Cross sections and tensor analyzing powers A_yy of the reaction ^1H(|vec|d,pp)n in SCRE geometries at E_d=19 MeV. United States.
J. Ley, C. Dueweke, A. Emmerich, A. Imig, H. Paez gen. Schieck, J. Golak, H. Witala, Evgeny Epelbaum, A. Deltuva, A. C. Fonseca, W. Gloeckle, Ulf-G. Meissner, A. Nogga, and P. U. Sauer. Wed . "Cross sections and tensor analyzing powers A_yy of the reaction ^1H(|vec|d,pp)n in SCRE geometries at E_d=19 MeV". United States. doi:. https://www.osti.gov/servlets/purl/876569.
@article{osti_876569,
title = {Cross sections and tensor analyzing powers A_yy of the reaction ^1H(|vec|d,pp)n in SCRE geometries at E_d=19 MeV},
author = {J. Ley and C. Dueweke and A. Emmerich and A. Imig and H. Paez gen. Schieck and J. Golak and H. Witala and Evgeny Epelbaum and A. Deltuva and A. C. Fonseca and W. Gloeckle and Ulf-G. Meissner and A. Nogga and P. U. Sauer},
abstractNote = {We measured the cross sections and tensor analyzing powers of the 1H({approx}d,pp)n breakup reaction at Ed=19 MeV in four symmetric constant relative energy (SCRE) configurations. The data are compared with theoretical predictions from three different approaches: one based on high precision (semi)phenomenological potentials alone or combined with model three-nucleon forces, another on chiral forces up to next-to-next-to-leading order (NNLO) in the chiral expansion. In both cases, the Coulomb interaction is not included. In addition, a comparison to predictions based on CD Bonn including the Lambda excitation and the Coulomb force is presented. In all cases the measured cross sections are significantly below the theoretical values whereas the magnitude of the tensor analyzing powers agree within the error bars in three of the four cases. The apparent discrepancies in the breakup cross sections are similar to the known differences for the space-star breakup. This adds to the data base of unsolved low-energy discrepancies.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2006},
month = {Wed Feb 01 00:00:00 EST 2006}
}