Computing the nucleon sigma terms at the physical point

Christian Torrero (1, 2) , For The Budapest-Marseille-Wuppertal Collaboration

1 CPT - Centre de Physique Théorique - UMR 7332
2 CPT - E1 Physique des particules

Nucleon sigma terms are quantities that play an important role in various areas: among others, they connect the pion-nucleon and the kaon-nucleon amplitudes to the hadron spectrum and they are also relevant for the direct detection of Dark Matter. We present preliminary results for the up-down and strange sigma terms obtained from $N_f=2+1$ lattice simulations that are performed at five lattice spacings and for pion masses all the way down to its physical value.

Domaines: Physique des Hautes Energies - Réseau [hep-lat]; Physique des Hautes Energies - Phénoménologie [hep-ph]

Christian Torrero, For The Budapest-Marseille-Wuppertal Collaboration. Computing the nucleon sigma terms at the physical point. 32nd International Symposium on Lattice Field Theory (Lattice 2014), Jun 2014, New York, United States. pp.143. ⟨hal-01259011⟩