Fri·Aug 21, 2015Friday·August 21, 2015

1. 01*

   Extracting the depolarization coefficient D_NN from data measured with a full acceptance detector

   F. Hauenstein🇩🇪 · H. Clement🇩🇪 · R. Dzhygadlo🇩🇪 · W. Eyrich🇩🇪 · A. Gillitzer🇩🇪 · D. Grzonka🇩🇪 · S. Jowzaee🇩🇪 · J. Ritman🇩🇪 · E. Roderburg🇩🇪 · M. Roeder🇩🇪 · P. Wintz🇩🇪

   The spin transfer from vertically polarized beam protons to Lambda or Sigma hyperons of the associated strangeness production pp -> pK Lambda (Sigma) is described with the depolarization coefficient D_NN. As the polarization of the hyperons is determined by their weak decays, detectors, which have a large acceptance for the decay particles, are needed. In this paper a formula is derived, which describes the depolarization coefficient D_NN by count rates of a 4 pi detector. It is shown, that formulas, which are given in publications for detectors with restricted acceptance, are specific cases of this formula for a 4 pi detector.

   nucl-exNucl.Instrum.Meth.A(2016)·2 citations
2. 02*

   Short-range correlations and their implications for isospin-dependent modification of nuclear quark distributions

   John Arrington🇺🇸

   The past decade has provided a much clearer picture of the structure of high-momentum components in nucleons, associated with hard, short-distance interactions between pairs of nucleons. Recent Jefferson Lab data on light nuclei suggest a connection between these so-called 'short-range correlations' and the modification of the quark structure of nucleons in the nuclear environment. In light of this discovery that the detailed nuclear structure is important in describing the nuclear quark distributions, we examine the potential impact of the isospin-dependent structure of nuclei to see at what level this might yield flavor-dependent effects in nuclear quark distributions.

   nucl-exnucl-thEPJ Web Conf.(2016)·12 citations
3. 03*

   Exploring sd-shell nuclei from two- and three-nucleon interactions with realistic saturation properties

   J. Simonis🇩🇪 · K. Hebeler🇩🇪 · J.D. Holt🇨🇦 · J. Menendez🇯🇵 · A. Schwenk🇩🇪

   We study ground- and excited-state properties of all sd-shell nuclei with neutron and proton numbers 8 <= N,Z <= 20, based on a set of low-resolution two- and three-nucleon interactions that predict realistic saturation properties of nuclear matter. We focus on estimating the theoretical uncertainties due to variation of the resolution scale, the low-energy couplings, as well as from the many-body method. The experimental two-neutron and two-proton separation energies are reasonably well reproduced, with an uncertainty range of about 5 MeV. The first excited 2+ energies also show overall agreement, with a more narrow uncertainty range of about 500 keV. In most cases, this range is dominated by the uncertainties in the Hamiltonian.

   ↳ nucl-thnucl-exPRC(2016)·114 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.