Are the Theta+(1540), Xi--(1860) and D*-p(3100) Pentaquarks or Heptaquarks?

Details Are the Theta+(1540), Xi--(1860) and D*-p(3100) Pentaquarks or Heptaquarks? Are the Theta+(1540), Xi--(1860) and D*-p(3100) Pentaquarks or Heptaquarks?

2004-05-25

arxiv.org/abs/hep-ph/0405254v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, uses enclosed moriond.sty, 1 Figure and 1 Table; talk at the XXXIXth Rencontres de Moriond: QCD and High Energy Hadro

Scientific paper

We study the Theta+(1540) discovered at SPring-8. We apply Quark Model techniques, that explain with success the repulsive hard core of nucleon-nucleon and kaon-nucleon exotic scattering, and the short range attraction present in pion-nucleon and pion-pion non-exotic scattering. We find a K-N repulsion which excludes the Theta+ as a K-N s-wave pentaquark. We explore the Theta+ as a crypto-heptaquark, equivalent to a K-pi-N borromean boundstate, with positive parity and total isospin I=0. The attraction is provided by the pion-nucleon and pion-kaon interactions. The other candidates to pentaquarks Xi--(1860), observed at NA49, and D*-p(3100), observed at H1, are also studied as linear molecular heptaquarks.

Affiliated with

Also associated with

No associations

Rating

Are the Theta+(1540), Xi--(1860) and D*-p(3100) Pentaquarks or Heptaquarks? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Are the Theta+(1540), Xi--(1860) and D*-p(3100) Pentaquarks or Heptaquarks?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Are the Theta+(1540), Xi--(1860) and D*-p(3100) Pentaquarks or Heptaquarks? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-387415