HOquuddss) detection ∑ HO H0→>p→pn兀
H0(uuddss) Detection H0 → p S - → p n p-
Strange Quark Matter Stable or metastable massive multiquark states involving u, d and s quarks Cs dd Artist's Interpretation Nuclear Matter Strange Matter (Carbon) (Strangelet) 6 =1 A=12 A=12 (36 quarks) Z/A=1/2 Z/A=0.083 Ns=10, IS=NSA=.83
Strange Quark Matter Stability Stable SQM-- ground State of QCD >1116 MeV unstable Stability M/Baryon[ [940, 1116]Mev Weak 03219 E Farhi and r L Jaffe, Phys. Rev. D30, 2379. Theoretical Prediction of stable particles often not reliable Particle mass c a few 1000 mev Binding energy a few mev(deuteron) No QCD or Phenomenological calculation has better than 1% accuracy
Strange Quark Matter Stability Stable SQM -- Ground State of QCD > 1116 MeV unstable Stability M/Baryon [940,1116] MeV Weak <940 MeV Stable { Witten, Phys. Rev. D30, 272 (1984) E. Farhi and R.L. Jaffe, Phys. Rev. D30, 2379. Theoretical Prediction of Stable Particles Often not Reliable -- Particle Mass ~ a few 1000 MeV -- Binding Energy a few MeV (deuteron) No QCD or Phenomenological calculation has better than 1% accuracy !
Stable(ct50 ns) strange quark matter has not been detected at the level -10%per central Au+Pb collisions! E886 10 E878 Z<0 Z=0 Z>0 10 10 6 10 10 10 E864 Final 10 25 5O 255D0 25 5o Mass (Gev/c) Mass(Gev/c) Mass(Gev/c)
E878 E886 E864 Final Stable (ct>50 ns) strange quark matter has not been detected at the level ~10-9 per central Au+Pb collisions !
⊙+ Exotic Baryon D Diakonov, V Petrov, and M. Polyakov, uudds Z. Phys.A359(1997)305 e(1530) · Exotic:S=+1 N(1710) ow mass: 1530 Mev Narrow width:x15 Mev ∑(1890) ·JP=1/2+ 三(2070) ddss mussa M=[1890-180*￥]Mev Isospin =0
Q+ Exotic Baryon M = [1890-180*Y] MeV D. Diakonov, V. Petrov, and M. Polyakov, Z. Phys. A 359 (1997) 305. • Exotic: S=+1 • Low mass: 1530 MeV • Narrow width: ~ 15 MeV • J p=1/2+ Isospin = 0