The quark contents of the nucleon and their implication for dark matter search
Date
2014-04-28Author
Drach, V
Alexandrou, C
Constantinou, M
Hadjiyiannakou, K
Jansen, K
Koutsou, G
Strelchenko, A
Vaquero, A
Subject
hep-lat hep-lat
Metadata
Show full item recordAbstract
We present results concerning the light and strange quark contents of the nucleon using Nf = 2+1+1 flavours of maximally twisted mass fermions. The corresponding σ- Terms are casting light on the origin of the nucleon mass and their values are important to interpret experimental data from direct dark matter searches. We discuss our strategy to estimate systematic uncertainties arising in our computations. Our preliminary results for the σ- Terms read σπN = 37(2:6)(24:7)MeV and σs = 28(8)(10)MeV. We present our recent final analysis of the yN parameter and found yN = 0:135(46) including systematics[1].
Description
7 pages, 6 figures, talk given at the 31st International Symposium on
Lattice Field Theory (Lattice 2013), July 29-August 3 2013, Mainz, Germany
Collections
Publisher
Sissa Medialab
Journal
Proceedings of 31st International Symposium on Lattice Field Theory LATTICE 2013 — PoS(LATTICE 2013)
Volume
29-July-2013
Pagination
295-
Conference name
31st International Symposium on Lattice Field Theory LATTICE 2013
Start date
2013-07-29
Author URL
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