Elastic, charge-exchange, and total<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mi>p</mml:mi></mml:math>cross sections in the momentum range 220 to 470 MeV/<i>c</i>

Mast, Terry S.; Alston‐Garnjost, M.; Bangerter, R.O.; Barbaro‐Galtieri, A.; Solmitz, Frank T.; Tripp, Robert D.

doi:10.1103/physrevd.14.13

Cited by 83 publications

(80 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Experimental data are from [42][43][44][45]. The points in red have not been included in the fitting procedure.…”

Section: Resultsmentioning

confidence: 99%

“…We consider a large amount of cross section data for K − p scattering and related channels [42][43][44][45][46][47][48][49][50][51][52]. Some points of these data sets have inconsistencies with the trend of the neighboring points and have not been employed in the fitting procedure, leaving us with a total of 161 experimental points coming from K − p scattering.…”

Section: B Data Treatment and Fitsmentioning

confidence: 99%

See 1 more Smart Citation

TheK¯N→KΞreaction in coupled-channels chiral models up to next-to-leading order

2015

View full text Add to dashboard Cite

The meson-baryon interaction in s wave in the strangeness S = −1 sector has been studied, employing a chiral SU(3) Lagrangian up to next-to-leading order (NLO) and implementing unitarization in coupled channels. The parameters of the Lagrangian have been fitted to a large set of experimental data in different two-body channels, paying special attention to theKN → K reaction, which is particularly sensitive to the NLO terms. With the aim of improving the model in the K production channels, effects of the high spin hyperon resonances (2030) and (2250) have been taken into account phenomenologically.

show abstract

“…Experimental data are from [42][43][44][45]. The points in red have not been included in the fitting procedure.…”

Section: Resultsmentioning

confidence: 99%

Section: B Data Treatment and Fitsmentioning

confidence: 99%

TheK¯N→KΞreaction in coupled-channels chiral models up to next-to-leading order

2015

View full text Add to dashboard Cite

show abstract

“…[48], developed with the aim of improving upon the knowledge of the chiral interation at next-to-leading order (NLO). The parameters of the model were fitted to a large set of experimental scattering data [54][55][56][57][58][59][60][61][62][63][64][65][66], as well as to branching ratios at threshold [67,68], and to the precise SIDDHARTA value of the energy shift and width of kaonic hidrogen [69]. Differently to other works, as e.g.…”

Section: Final-state Interaction Modelsmentioning

confidence: 99%

A hidden-charm $$\varvec{S=-1}$$ S = - 1 pentaquark from the decay of $$\varvec{\varLambda _b}$$ Λ b into $$\varvec{J/\psi \, \eta \varLambda }$$ J / ψ η Λ states

et al. 2016

View full text Add to dashboard Cite

The hidden-charm pentaquark P c (4450) observed recently by the LHCb collaboration may be of molecular nature, as advocated by some unitary approaches that also predict pentaquark partners in the strangeness S = −1 sector. In this work we argue that a hidden-charm strange pentaquark could be seen from the decay of the Λ b , just as in the case of the non-strange P c (4450), but looking into the J/ψ ηΛ decay mode and forming the invariant mass spectrum of J/ψΛ pairs. In the model presented here, which assumes a standard weak decay topology and incorporates the hadronization process and final-state interaction effects, we find the J/ψ ηΛ final states to be populated with similar strength as the J/ψ K − p states employed for the observation of the nonstrange pentaquark. This makes the Λ b → J/ψ ηΛ decay to be an interesting process to observe a possible strange partner of the P c (4450). We study the dependence of the J/ψΛ mass spectra on various model ingredients and on the unknown properties of the strange pentaquark.

show abstract

“…The many parameters F i and δF i in (116) are expressed in terms of the seven parameters c i and δc i =c i − c i −c i . For the readers convenience we provide the axial-vector coupling constants, which are most relevant for the pion-nucleon and kaon-nucleon scattering processes, in terms of those large N c parameters…”

mentioning

confidence: 99%

Relativistic chiral SU(3) symmetry, large-Nc sum rules and meson–baryon scattering

Lutz¹,

2002

View full text Add to dashboard Cite

The relativistic chiral SU (3) Lagrangian is used to describe kaon-nucleon scattering imposing constraints from the pion-nucleon sector and the axial-vector coupling constants of the baryon octet states. We solve the covariant coupled-channel BetheSalpeter equation with the interaction kernel truncated at chiral order Q 3 where we include only those terms which are leading in the large N c limit of QCD. The baryon decuplet states are an important explicit ingredient in our scheme, because together with the baryon octet states they form the large N c baryon ground states of QCD. Part of our technical developments is a minimal chiral subtraction scheme within dimensional regularization, which leads to a manifest realization of the covariant chiral counting rules. All SU(3) symmetry-breaking effects are well controlled by the combined chiral and large N c expansion, but still found to play a crucial role in understanding the empirical data. We achieve an excellent description of the data set typically up to laboratory momenta of p lab ≃ 500 MeV.

show abstract

Elastic, charge-exchange, and totalK−pcross sections in the momentum range 220 to 470 MeV/c

Cited by 83 publications

References 18 publications

TheK¯N→KΞreaction in coupled-channels chiral models up to next-to-leading order

TheK¯N→KΞreaction in coupled-channels chiral models up to next-to-leading order

A hidden-charm $$\varvec{S=-1}$$ S = - 1 pentaquark from the decay of $$\varvec{\varLambda _b}$$ Λ b into $$\varvec{J/\psi \, \eta \varLambda }$$ J / ψ η Λ states

Relativistic chiral SU(3) symmetry, large-Nc sum rules and meson–baryon scattering

Contact Info

Product

Resources

About