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Title: Nuclear proton and neutron distributions in the detection of weak interacting massive particles

Abstract

In the evaluation of weak interacting massive particles (WIMPs) detection rates, the WIMP-nucleus cross section is commonly described by using form factors extracted from charge distributions. In this work, we use different proton and neutron distributions taken from Hartree-Fock calculations. We study the effects of this choice on the total detection rates for six nuclei having different neutron excess, and taken from different regions of the nuclear chart. The use of different distributions for protons and neutrons becomes more important if isospin-dependent WIMP-nucleon interactions are considered. The need for distinct descriptions of proton and neutron densities decreases with the lowering of detection energy thresholds.

Authors:
;  [1]; ;  [2]
  1. Dipartimento di Matematica e Fisica ''E. De Giorgi'', Università del Salento, via Arnesano, I-73100 Lecce (Italy)
  2. Departamento de Física Atómica, Molecular y Nuclear, Universidad de Granada, Avda Fuentenueva s/n, E-18071 Granada (Spain)
Publication Date:
OSTI Identifier:
22279679
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2012; Journal Issue: 11; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; CHARGE DISTRIBUTION; COSMOLOGY; CROSS SECTIONS; FORM FACTORS; HARTREE-FOCK METHOD; ISOSPIN; NEUTRON DENSITY; NEUTRONS; PARTICLE INTERACTIONS; PROTONS; WIMPS

Citation Formats

Co', G., Donno, V. De, Anguiano, M., and Lallena, A.M., E-mail: gpco@le.infn.it, E-mail: viviana.de.donno@le.infn.it, E-mail: mangui@ugr.es, E-mail: lallena@ugr.es. Nuclear proton and neutron distributions in the detection of weak interacting massive particles. United States: N. p., 2012. Web. doi:10.1088/1475-7516/2012/11/010.
Co', G., Donno, V. De, Anguiano, M., & Lallena, A.M., E-mail: gpco@le.infn.it, E-mail: viviana.de.donno@le.infn.it, E-mail: mangui@ugr.es, E-mail: lallena@ugr.es. Nuclear proton and neutron distributions in the detection of weak interacting massive particles. United States. doi:10.1088/1475-7516/2012/11/010.
Co', G., Donno, V. De, Anguiano, M., and Lallena, A.M., E-mail: gpco@le.infn.it, E-mail: viviana.de.donno@le.infn.it, E-mail: mangui@ugr.es, E-mail: lallena@ugr.es. Thu . "Nuclear proton and neutron distributions in the detection of weak interacting massive particles". United States. doi:10.1088/1475-7516/2012/11/010.
@article{osti_22279679,
title = {Nuclear proton and neutron distributions in the detection of weak interacting massive particles},
author = {Co', G. and Donno, V. De and Anguiano, M. and Lallena, A.M., E-mail: gpco@le.infn.it, E-mail: viviana.de.donno@le.infn.it, E-mail: mangui@ugr.es, E-mail: lallena@ugr.es},
abstractNote = {In the evaluation of weak interacting massive particles (WIMPs) detection rates, the WIMP-nucleus cross section is commonly described by using form factors extracted from charge distributions. In this work, we use different proton and neutron distributions taken from Hartree-Fock calculations. We study the effects of this choice on the total detection rates for six nuclei having different neutron excess, and taken from different regions of the nuclear chart. The use of different distributions for protons and neutrons becomes more important if isospin-dependent WIMP-nucleon interactions are considered. The need for distinct descriptions of proton and neutron densities decreases with the lowering of detection energy thresholds.},
doi = {10.1088/1475-7516/2012/11/010},
journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 11,
volume = 2012,
place = {United States},
year = {2012},
month = {11}
}