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Title: Chiral Extrapolations of the $$\boldsymbol{ρ(770)}$$ Meson in $$\mathbf{N_f=2+1}$$ Lattice QCD Simulations

Abstract

Several lattice QCD simulations of meson-meson scattering in p-wave and Isospin = 1 in Nf = 2 + 1 flavours have been carried out recently. Unitarized Chiral Perturbation Theory is used to perform extrapolations to the physical point. In contrast to previous findings on the analyses of Nf = 2 lattice data, where most of the data seems to be in agreement, some discrepancies are detected in the Nf = 2 + 1 lattice data analyses, which could be due to different masses of the strange quark, meson decay constants, initial constraints in the simulation, or other lattice artifacts. In addition, the low-energy constants are compared to the ones from a recent analysis of Nf = 2 lattice data.

Authors:
 [1];  [2];  [3];  [2];  [2]
  1. Univ. of Sao Paulo (Brazil)
  2. George Washington Univ., Washington, DC (United States)
  3. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); George Washington Univ., Washington, DC (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1434235
Report Number(s):
JLAB-THY-18-2685; DOE/OR/23177-4417
DOE Contract Number:
AC05-06OR23177; SC0016582; NSF PHY-1151648; FG02-95ER40907
Resource Type:
Conference
Resource Relation:
Journal Name: EPJ Web of Conferences; Journal Volume: 175; Conference: Lattice 2017, 35th International Symposium on Lattice Field Theory, 18-24 Jun 2017. Granada, Spain
Country of Publication:
United States
Language:
English

Citation Formats

Molina, Raquel, Hu, Bitao, Doering, Michael, Mai, Maxim, and Alexandru, Andrei. Chiral Extrapolations of the $\boldsymbol{ρ(770)}$ Meson in $\mathbf{N_f=2+1}$ Lattice QCD Simulations. United States: N. p., 2018. Web. doi:10.1051/epjconf/201817505002.
Molina, Raquel, Hu, Bitao, Doering, Michael, Mai, Maxim, & Alexandru, Andrei. Chiral Extrapolations of the $\boldsymbol{ρ(770)}$ Meson in $\mathbf{N_f=2+1}$ Lattice QCD Simulations. United States. doi:10.1051/epjconf/201817505002.
Molina, Raquel, Hu, Bitao, Doering, Michael, Mai, Maxim, and Alexandru, Andrei. Sun . "Chiral Extrapolations of the $\boldsymbol{ρ(770)}$ Meson in $\mathbf{N_f=2+1}$ Lattice QCD Simulations". United States. doi:10.1051/epjconf/201817505002. https://www.osti.gov/servlets/purl/1434235.
@article{osti_1434235,
title = {Chiral Extrapolations of the $\boldsymbol{ρ(770)}$ Meson in $\mathbf{N_f=2+1}$ Lattice QCD Simulations},
author = {Molina, Raquel and Hu, Bitao and Doering, Michael and Mai, Maxim and Alexandru, Andrei},
abstractNote = {Several lattice QCD simulations of meson-meson scattering in p-wave and Isospin = 1 in Nf = 2 + 1 flavours have been carried out recently. Unitarized Chiral Perturbation Theory is used to perform extrapolations to the physical point. In contrast to previous findings on the analyses of Nf = 2 lattice data, where most of the data seems to be in agreement, some discrepancies are detected in the Nf = 2 + 1 lattice data analyses, which could be due to different masses of the strange quark, meson decay constants, initial constraints in the simulation, or other lattice artifacts. In addition, the low-energy constants are compared to the ones from a recent analysis of Nf = 2 lattice data.},
doi = {10.1051/epjconf/201817505002},
journal = {EPJ Web of Conferences},
number = ,
volume = 175,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2018},
month = {Sun Apr 01 00:00:00 EDT 2018}
}

Conference:
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