Search Results - "Bruns, P.C."

Constraining the chirally motivated π Σ − K ¯ N models with the πΣ photoproduction mass spectra by Cieplý, A., Bruns, P.C.

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Constraining the chirally motivated πΣ−K¯N models with the πΣ photoproduction mass spectra by Cieplý, A., Bruns, P.C.

“…The paper presents a first time attempt on a combined fit of the K−p low-energy data and the πΣ photoproduction mass spectra, performed without fixing the…”
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SU(3) flavor symmetry considerations for the K¯N coupled channels system by Bruns, P.C., Cieplý, A.

“…We study the impact of SU(3) flavor symmetry breaking on the properties of dynamically generated Λ⁎ states within an effective separable potential model…”
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Importance of chiral constraints for the pole content of the K¯N scattering amplitude by Bruns, P.C., Cieplý, A.

“…We critically examine the K¯N coupled-channel approach presented in [1] and demonstrate that it violates constraints imposed by chiral symmetry of QCD. The…”
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Coupled channels approach to ηN and η′N interactions by Bruns, P.C., Cieplý, A.

“…We present a coupled channels separable potential approach to ηN and η′N interactions using a chiral-symmetric interaction kernel. The s-wave πN amplitudes and…”
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Nucleon mass and sigma term from lattice QCD with two light fermion flavors by Bali, G.S., Bruns, P.C., Collins, S., Deka, M., Gläßle, B., Göckeler, M., Greil, L., Hemmert, T.R., Horsley, R., Najjar, J., Nakamura, Y., Nobile, A., Pleiter, D., Rakow, P.E.L., Schäfer, A., Schiel, R., Schierholz, G., Sternbeck, A., Zanotti, J.

“…We analyze Nf=2 nucleon mass data with respect to their dependence on the pion mass down to mπ=157 MeV and compare it with predictions from covariant baryon…”
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Chiral corrections to the Roper mass☆☆This research is part of the EU Integrated Infrastructure Initiative Hadron Physics Project under contract number RII3-CT-2004-506078. Work supported in part by DFG (SFB/TR 16, “Subnuclear Structure of Matter”, and BO 1481/6-1) and by Canada's NSERC and CRC programs by Borasoy, B., Bruns, P.C., Meißner, U.-G., Lewis, R.

“…We analyze the quark mass dependence of the Roper mass to one-loop order in relativistic baryon chiral perturbation theory. The loop integrals are evaluated…”
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Gauge invariance in two-particle scattering by Borasoy, B., Bruns, P. C., Meißner, U.-G., Nißler, R.

“…It is shown how gauge invariance is obtained for the coupling of a photon to a two-body state described by the solution of the Bethe-Salpeter equation. This is…”
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