Mesonic and baryonic correlation functions at fine lattice spacings

S. Capitani, M. Della Morte, E. Endress, A. Juttner, B. Knippschild, H. Wittig, M. Zambrana

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

We report on our on-going project to compute mesonic and baryonic two- and three-point correlation functions in simulations using Nf=2 flavours of O(a) improved Wilson quarks and the Wilson plaquette action. We present performance figures for the DD-HMC algorithm on commodity cluster hardware and discuss the issue of critical slowing down, which is particularly pronounced for the topological charge. The effectiveness of stochastic noise sources and Jacobi smearing are investigated. Our preliminary results obtained at three quark masses on 96x48^3 at beta=5.5 imply that the lattice spacing is about 0.06 fm, while the smallest pion mass in the current runs is around 360 MeV, which corresponds to m_pi*L=5.3.
OriginalsprogUdefineret/Ukendt
TidsskriftPoS LAT
StatusUdgivet - 29. okt. 2009

Bibliografisk note

7 pages, 4 figures, presented at 27 International Symposium on Lattice Field Theory, July 26-31, 2009, Peking University, Beijing, China

Emneord

  • hep-lat

Citer dette

Capitani, S., Morte, M. D., Endress, E., Juttner, A., Knippschild, B., Wittig, H., & Zambrana, M. (2009). Mesonic and baryonic correlation functions at fine lattice spacings. PoS LAT.
Capitani, S. ; Morte, M. Della ; Endress, E. ; Juttner, A. ; Knippschild, B. ; Wittig, H. ; Zambrana, M. / Mesonic and baryonic correlation functions at fine lattice spacings. I: PoS LAT. 2009.
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Capitani, S, Morte, MD, Endress, E, Juttner, A, Knippschild, B, Wittig, H & Zambrana, M 2009, 'Mesonic and baryonic correlation functions at fine lattice spacings', PoS LAT.

Mesonic and baryonic correlation functions at fine lattice spacings. / Capitani, S.; Morte, M. Della; Endress, E.; Juttner, A.; Knippschild, B.; Wittig, H.; Zambrana, M.

I: PoS LAT, 29.10.2009.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Mesonic and baryonic correlation functions at fine lattice spacings

AU - Capitani, S.

AU - Morte, M. Della

AU - Endress, E.

AU - Juttner, A.

AU - Knippschild, B.

AU - Wittig, H.

AU - Zambrana, M.

N1 - 7 pages, 4 figures, presented at 27 International Symposium on Lattice Field Theory, July 26-31, 2009, Peking University, Beijing, China

PY - 2009/10/29

Y1 - 2009/10/29

N2 - We report on our on-going project to compute mesonic and baryonic two- and three-point correlation functions in simulations using Nf=2 flavours of O(a) improved Wilson quarks and the Wilson plaquette action. We present performance figures for the DD-HMC algorithm on commodity cluster hardware and discuss the issue of critical slowing down, which is particularly pronounced for the topological charge. The effectiveness of stochastic noise sources and Jacobi smearing are investigated. Our preliminary results obtained at three quark masses on 96x48^3 at beta=5.5 imply that the lattice spacing is about 0.06 fm, while the smallest pion mass in the current runs is around 360 MeV, which corresponds to m_pi*L=5.3.

AB - We report on our on-going project to compute mesonic and baryonic two- and three-point correlation functions in simulations using Nf=2 flavours of O(a) improved Wilson quarks and the Wilson plaquette action. We present performance figures for the DD-HMC algorithm on commodity cluster hardware and discuss the issue of critical slowing down, which is particularly pronounced for the topological charge. The effectiveness of stochastic noise sources and Jacobi smearing are investigated. Our preliminary results obtained at three quark masses on 96x48^3 at beta=5.5 imply that the lattice spacing is about 0.06 fm, while the smallest pion mass in the current runs is around 360 MeV, which corresponds to m_pi*L=5.3.

KW - hep-lat

M3 - Tidsskriftartikel

JO - PoS LAT

JF - PoS LAT

ER -

Capitani S, Morte MD, Endress E, Juttner A, Knippschild B, Wittig H et al. Mesonic and baryonic correlation functions at fine lattice spacings. PoS LAT. 2009 okt 29.