A Method to Unambiguously Determine the Parity of the Θ+ Pentaquark
TLDR
In this paper, it was shown that the measurement of the spin singlet and triplet cross sections for the reaction pp → Σ + Θ + will unambiguously determine the parity of the Θ+.Abstract:
With the recent discovery of the Θ(1540) pentaquark, the question of its parity is paramount since this will constrain the correct description of its internal structure. We show that the measurement of the spin singlet and triplet cross sections for the reaction pp → Σ + Θ + will unambiguously determine the parity of the Θ + .read more
Citations
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Journal ArticleDOI
Chiral-soliton predictions for exotic baryons
TL;DR: In this article, the authors re-analyze the predictions of chiral-soliton models for the masses and decay widths of baryons in the exotic antidecuplet of flavour SU(3).
Journal ArticleDOI
Parity of Θ+(1540) from QCD sum rules
TL;DR: In this article, the sum rule for the pentaquark Θ + was analyzed with a phenomenological side that explicitly included the contribution from the two-particle reducible kaon-nucleon intermediate state.
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How to measure the parity of the Θ+ in p→p→ collisions
Christoph Hanhart,Markus Büscher,W. Eyrich,K. Kilian,Ulf-G. Meißner,Ulf-G. Meißner,Frank Rathmann,A. Sibirtsev,H. Ströher +8 more
TL;DR: In this article, it was shown that the sign of the spin correlation coefficient A xx for small excess energies yields the negative of the parity of the Θ + in a reaction p → p → → Σ + Θ+ near its production threshold.
Journal ArticleDOI
Anticharmed pentaquark Θc(3099) from QCD sum rules
TL;DR: In this article, the parity of the anti-charmed pentaquark Θ c (3099) was shown to be positive, and the sum rules were constructed similarly with the Θ + (1540) sum rules using the anticharmed analogue of the π + interpolating field.
Journal ArticleDOI
Magnetic moments of antidecuplet pentaquarks
TL;DR: In this paper, the authors analyzed the magnetic moments of the exotic pentaquarks of the flavor antidecuplet in the constituent quark model for the cases in which the ground state is in an orbital Lp = 0+ or a Lp=1− state.
References
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Exotic anti-decuplet of baryons: prediction from chiral solitons
TL;DR: In this paper, the authors predict an exotic Z + baryon with spin 1/2, isospin 0 and strangeness + 1 with a relatively low mass of about 1530 MeV and total width of less than 15 MeV.
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Observation of a baryon resonance with positive strangeness in K+ collisions with Xe nuclei
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TL;DR: In this paper, the status of low-energy collisions in the xenon bubble chamber DIANA was investigated and the spectrum of the antidecuplet of exotic pentaquark baryons was analyzed.
Journal ArticleDOI
Observation of a baryon resonance with positive strangeness in K+ collisions with Xe nuclei
V.V. Barmin,V.S. Borisov,G.V. Davidenko,A.G. Dolgolenko,C. Guaraldo,I. Larin,Viktor Matveev,C. Petrascu,V.A. Shebanov,N.N. Shishov,L. I. Sokolov,G.K. Tumanov +11 more
TL;DR: In this article, the status of low-energy collisions in the Xenon bubble chamber DIANA was investigated and a resonance enhancement of the spectrum of the mass of the anti-decuplet of exotic pentaquark baryons was observed.
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