Pentaquark phenomenology Page: 4 of 8
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* Mesons and Baryons are made of the same quarks. Describing both
as simple composites of asymptotically free quasiparticles with a unique
effective mass value predicts hadron masses, magnetic moments and hy-
perfine splittings [5-7].
" Lattice QCD can give all the answers.
" Lattice calculations disagree on whether the H dibaryon is bound. No
hope of settling this question until much bigger lattices are available.
" Light (uds) SU(3) symmetry and Heavy Quark symmetry (cbt) are good
" Light (uds) SU(3) symmetry is bad. All nontrivial hadron states violate
SU(3). All light V, A and T mesons have good isospin symmetry with
flavor mixing in (u.d) space and no si component; e.g. p, w.
" The s-quark is a heavy quark. Flavor mixing in mass eigenstates predicted
by SU(3) is not there. Most nontrivial strange hadron states satisfy (scb)
heavy quark symmetry with no flavor mixing.; e.g. 0, 0, T.
An underlying dynamics describes many meson and baryon properties pri-
marily in terms constituent quarks which are the same in mesons and baryons.
(ma - mu)Ba,. = MA - MN = 177 MeV =
MN+ MIM - MN
( 1 = 190 MeV. (la)
6 \ ME - ME
(m, - mu)mea = 3(MK* -=Mp) + MK - M, - 180MeV =
3M + M. (_MP-- -1 = 178 MeV. (1b)
8 "\MK. - IIK
The mass difference m, - mu has the same value 3% when calculated in two
independent ways from baryon masses and meson masses [5-7]. The same
approach applied to mb - me gives
(mb - ma)Ba, = M(Ab) - M(A,) = 3356 MeV, (2a)
(mb - m)m, 3(MB - MD-) + MB - MD = 3338 MeV. (2b)
The ratio m has the same value 2.5% for mesons and baryons.
(Q' = MA-MN =1.53= -- - = MP - M = 1.61 (3)
mBr,. ME. -M \m UM MK. - MK
Three magnetic moment predictions with no free parameters [8,9]
Smu - - , ME. - ME
p3 = -0.61n.m. = -MN = -0.61n.m. (4)
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Lipkin, H.J. Pentaquark phenomenology, article, September 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc697257/m1/4/: accessed February 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.