Hybrid baryon signatures

We discuss whether a low-lying hybrid baryon should be defined as a three quark - gluon bound state or as three quarks moving on an excited adiabatic potential. We show that the latter definition becomes exact, not only for very heavy quarks, but also for specific dynamics. We review the literature on the signatures of hybrid baryons, with specific reference to strong hadronic decays, electromagnetic couplings, diffractive production and production in psi decay.

talk: Newport News 2000/02/16
hadron spectroscopy
baryon: hybrid
bound state: (3quark gluon)
potential: adiabatic
effective Hamiltonian
bound state: (3quark)
flux tube
baryon: decay
photon nucleon: interaction

References(18)

Figures(0)

Perturbative QCD signatures of hybrid hadrons in electroproduction at high Q**2

Carl E. Carlson
(
- William-Mary Coll. and
- Washington U., Seattle
)
,
Nimai C. Mukhopadhyay
(
- Rensselaer Poly. and
- Washington U., Seattle
)

- Phys.Rev.Lett. 67 (1991) 3745-3748
•
DOI:
- 10.1103/PhysRevLett.67.3745

Hybrid baryons in large N(c) QCD

- Phys.Rev.D 59 (1999) 056002
•
e-Print:
- hep-ph/9807387
•
DOI:
- 10.1103/PhysRevD.59.056002

WHERE ARE HERMAPHRODITE BARYONS?

Ted Barnes
(
- Rutherford
)
,
F.E. Close
(
- Rutherford
)

- Phys.Lett.B 123 (1983) 89-92
•
DOI:
- 10.1016/0370-2693(83)90965-6

ARE THERE BARYONS WHICH CONTAIN CONSITUTUENT GLUONS?

Eugene Golowich
(
- Massachusetts U., Amherst
)
,
Emmanuel Haqq
(
- Massachusetts U., Amherst
)
,
Gabriel Karl
(
- Guelph U.
)

- Phys.Rev.D 28 (1983) 160,
- Phys.Rev.D 33 (1986) 859 (erratum)
•
DOI:
- 10.1103/PhysRevD.28.160

GLUONIC NUCLEONS IN A VALON BAG MODEL

I. Duck
(
- Rice U.
)
,
E. Umland
(
- Rice U.
)

- Phys.Lett.B 128 (1983) 221-224
•
DOI:
- 10.1016/0370-2693(83)90396-9

Are There Baryons With Constituent Glue?

C.E. Carlson
(
- SUNY, Stony Brook and
- William-Mary Coll.
)
,
T.H. Hansson
(
- MIT, LNS
)

- Phys.Lett.B 128 (1983) 95-98
•
DOI:
- 10.1016/0370-2693(83)90081-3

A Flux Tube Model for Hadrons in QCD

Nathan Isgur
(
- Toronto U.
)
,
Jack E. Paton
(
- Oxford U.
)

- Phys.Rev.D 31 (1985) 2910
•
DOI:
- 10.1103/PhysRevD.31.2910

A Flux Tube Model for Hadrons

Nathan Isgur
(
- Oxford U.
)
,
Jack E. Paton
(
- Oxford U.
)

- Phys.Lett.B 124 (1983) 247-251
•
DOI:
- 10.1016/0370-2693(83)91445-4

Constructing hybrid baryons with flux tubes

Simon Capstick
(
- Florida State U., SCRI
)
,
Philip R. Page
(
- Los Alamos
)

- Phys.Rev.D 60 (1999) 111501
•
e-Print:
- nucl-th/9904041
•
DOI:
- 10.1103/PhysRevD.60.111501

Corrections to the Adiabatic Limit in the Flux Tube Model

John Merlin
(
- Oxford U.
)
,
Jack E. Paton
(
- Oxford U.
)

- J.Phys.G 11 (1985) 439,
- J.Phys.G 11 (1985) 439-457,
- J. Phys. G11 ( 1985) 439-457 and Oxford Univ. - 84-089 (84,REC.JAN.85) 38p
•
DOI:
- 10.1088/0305-4616/11/4/002