scholarly journals Exotic bound states of two baryons in light of chiral effective field theory

2012 ◽  
Vol 881 ◽  
pp. 44-61 ◽  
Author(s):  
J. Haidenbauer ◽  
U.-G. Meißner
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Bound States ◽  
Effective Field ◽  
Chiral Effective Field Theory

scholarly journals $$A=4-7$$ $$\varXi $$ hypernuclei based on interactions from chiral effective field theory

2021 ◽  
Vol 57 (12) ◽  
Author(s):  
Hoai Le ◽  
Johann Haidenbauer ◽  
Ulf-G. Meißner ◽  
Andreas Nogga
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Bound States ◽  
Effective Field ◽  
Binding Energies ◽  
Chiral Effective Field Theory ◽  
Decay Widths

AbstractWe investigate the existence of bound $$\varXi $$ Ξ states in systems with $$A=4-7$$ A = 4 - 7 baryons using the Jacobi NCSM approach in combination with chiral NN and $$\varXi $$ Ξ N interactions. We find three shallow bound states for the NNN$$\varXi $$ Ξ system (with $$(J^\pi ,T)=(1^+,0)$$ ( J π , T ) = ( 1 + , 0 ) , $$(0^+,1)$$ ( 0 + , 1 ) and $$(1^+,1)$$ ( 1 + , 1 ) ) with quite similar binding energies. The $$^5_{\varXi }\mathrm {H}(\frac{1}{2}^+,\frac{1}{2})$$ Ξ 5 H ( 1 2 + , 1 2 ) and $$^7_{\varXi }\mathrm {H}(\frac{1}{2}^+,\frac{3}{2})$$ Ξ 7 H ( 1 2 + , 3 2 ) hypernuclei are also clearly bound with respect to the thresholds $$^4\mathrm {He} + \varXi $$ 4 He + Ξ and $$^6\mathrm {He} +\varXi $$ 6 He + Ξ , respectively. The binding of all these $$\varXi $$ Ξ systems is predominantly due to the attraction of the chiral $$\varXi $$ Ξ N potential in the $$^{33}S_1$$ 33 S 1 channel. A perturbative estimation suggests that the decay widths of all the observed states could be rather small.

scholarly journals Hyperon–nucleon interaction at next-to-leading order in chiral effective field theory

2013 ◽  
Vol 915 ◽  
pp. 24-58 ◽  
Author(s):  
J. Haidenbauer ◽  
S. Petschauer ◽  
N. Kaiser ◽  
U.-G. Meißner ◽  
A. Nogga ◽  
...  
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Effective Field ◽  
Leading Order ◽  
Nucleon Interaction ◽  
Chiral Effective Field Theory

scholarly journals Neutron-proton scattering with lattice chiral effective field theory at next-to-next-to-next-to-leading order

2018 ◽  
Vol 98 (4) ◽  
Author(s):  
Ning Li ◽  
Serdar Elhatisari ◽  
Evgeny Epelbaum ◽  
Dean Lee ◽  
Bing-Nan Lu ◽  
...  
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Effective Field ◽  
Proton Scattering ◽  
Leading Order ◽  
Chiral Effective Field Theory

scholarly journals Hyperons in nuclear matter from SU(3) chiral effective field theory

2016 ◽  
Vol 52 (1) ◽  
Author(s):  
S. Petschauer ◽  
J. Haidenbauer ◽  
N. Kaiser ◽  
Ulf-G. Meißner ◽  
W. Weise
Keyword(s):  
Field Theory ◽  
Nuclear Matter ◽  
Effective Field Theory ◽  
Effective Field ◽  
Chiral Effective Field Theory
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