Exotic Multi-quark States in the Deconfined Phase from Gravity Dual Models

Details Exotic Multi-quark States in the Deconfined Phase from Gravity Dual Models Exotic Multi-quark States in the Deconfined Phase from Gravity Dual Models

2008-11-03

arxiv.org/abs/0811.0243v2

JHEP 0905:006,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, 8 figures, minor changes and corrections

Scientific paper

10.1088/1126-6708/2009/05/006

In the deconfined phase of quark-gluon plasma, it seems that most of the quarks, antiquarks and gluons should be effectively free in the absence of the linear confining potential. However, the remaining Coulomb-type potential between quarks in the plasma could still be sufficiently strong that certain bound states, notably of heavy quarks such as $J/\psi$ are stable even in the deconfined plasma up to a certain temperature. Baryons can also exist in the deconfined phase provided that the density is sufficiently large. We study three kinds of exotic multi-quark bound states in the deconfined phase of quark-gluon plasma from gravity dual models in addition to the normal baryon. They are $k$-baryon, $(N+\bar{k})$-baryon and a bound state of $j$ mesons which we call "$j$-mesonance". Binding energies and screening lengths of these exotic states are studied and are found to have similar properties to those of mesons and baryons at the leading order. Phase diagram for the exotic nuclear phases is subsequently studied in the Sakai-Sugimoto model. Even though the exotics are less stable than normal baryons, in the region of high chemical potential and low temperature, they are more stable thermodynamically than the vacuum and chiral-symmetric quark-gluon plasma phases ($\chi$S-QGP).

Affiliated with

Also associated with

No associations

Rating

Exotic Multi-quark States in the Deconfined Phase from Gravity Dual Models 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 Exotic Multi-quark States in the Deconfined Phase from Gravity Dual Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exotic Multi-quark States in the Deconfined Phase from Gravity Dual Models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-233637