Dynamics of Positive-Parity Baryon Excited States

E. Golowich

doi:10.1103/physrevlett.18.633

Positive-parity excited states of the nucleon in quenched lattice QCD

Physical Review D ◽

10.1103/physrevd.82.094504 ◽

2010 ◽

Vol 82 (9) ◽

Cited By ~ 14

Author(s):

M. S. Mahbub ◽

Alan Ó. Cais ◽

Waseem Kamleh ◽

Derek B. Leinweber ◽

Anthony G. Williams

Keyword(s):

Lattice Qcd ◽

Excited States ◽

Positive Parity

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Positive parity excited states of the nucleon

10.22323/1.091.0118 ◽

2010 ◽

Author(s):

S. Mahbub ◽

Alan O Cais ◽

Waseem Kamleh ◽

B. G. Lasscock ◽

Derek Leinweber ◽

...

Keyword(s):

Excited States ◽

Positive Parity

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Analogues of Excited States in 91Zr

Australian Journal of Physics ◽

10.1071/ph690541 ◽

1969 ◽

Vol 22 (4) ◽

pp. 541 ◽

Cited By ~ 6

Author(s):

GA Jones ◽

GC Morrison ◽

RB Taylor

Keyword(s):

Excitation Energy ◽

Excited States ◽

Single Particle ◽

Ground State ◽

Level Structure ◽

Positive Parity

The level structure in 91Zr has been investigated by Cohen and Chubinsky (1963) with the 90Zr (d, p)91Zr reaction. They noted some 14 levels up to an excitation energy of 3�9 MeV. All these states were found to have positive parity and their structure is fairly well understood in terms of coupling a single-particle neutron to the ground state and the first two excited states of 90Zr (Ramavataram 1964). A study of the isobaric analogues of the 9lZr states with the 90Zr(p, pO)90Zr reaction was carried out by Moore (1964).

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Model of Positive-Parity Baryon Excited States

Physical Review ◽

10.1103/physrev.168.1745 ◽

1968 ◽

Vol 168 (5) ◽

pp. 1745-1752 ◽

Cited By ~ 11

Author(s):

E. Golowich

Keyword(s):

Excited States ◽

Positive Parity

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Low-Lying Positive-Parity States in 101Tc

Canadian Journal of Physics ◽

10.1139/p72-206 ◽

1972 ◽

Vol 50 (13) ◽

pp. 1511-1517 ◽

Cited By ~ 12

Author(s):

W. B. Cook ◽

M. W. Johns ◽

J. S. Geiger ◽

R. L. Graham

Keyword(s):

Excited States ◽

Ground State ◽

Decay Scheme ◽

Internal Conversion ◽

Conversion Coefficient ◽

Low Energy ◽

Positive Parity ◽

Β Decay ◽

Energy Transitions ◽

Conversion Measurement

Internal conversion measurement studies of the 14.6 min 101Mo β decay have led to the discovery of the following low-energy transitions in 101Tc: 6.281 ± 0.007 (75.4 ± 9%), 9.317 ± 0.010 (97 ± 1%), and 15.606 ± 0.015 keV (1.9 + 0.3%). From relative L-subshell intensities, the 6.281 and 9.317 keV transitions are found to be M1 with E2 admixtures of 0.010 ± 0.005% and 0.021 + 0.006% respectively; the weak 15.606 keV transition is E2 in character. These transitions establish excited states in 101Tc at 9.317 ± 0.010 and 15.601 ± 0.009 keV. The measured multipolarities together with decay scheme considerations lead to Jπ values of 9/2 +, 7/2 +, and 5/2 + for the ground state, the 9.317, and the 15.601 keV states respectively. Since these transitions were not observed in earlier studies of the β decay of 101Mo, quoted decay energies have been 15.6 keV too low. The measured K-conversion coefficient of the 80.926 keV transition shows that it is M1 with an E2 component of < 9%.

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Vuv Spectra Y to Mo

International Astronomical Union Colloquium ◽

10.1017/s0252921100107808 ◽

1988 ◽

Vol 102 ◽

pp. 239

Author(s):

M.S.Z. Chaghtai

Keyword(s):

Excited States ◽

Spectral Analyses ◽

Vuv Spectra

Using R.D. Cowan’s computations (1979) and parametric calculations of Meinders et al (1982), old analyses are thoroughly revised and extended at Aligarh, of Zr III by Khan et al (1981), of Nb IV by Shujauddin et Chaghtai (1985), of Mo V by Tauheed at al (1985). Cabeza et al (1986) confirmed the last one largely.Extensive studies have been reported of the 1–e spectra, Zr IV (Rahimullah et al 1980; Acquista and Reader 1980), Nb V (Shujauddin et al 1982; Kagan et al 1981) and Mo VI (Edlén et al 1985). Some interacting 4p54d2levels of these spectra have been reported from our laboratory, also.Detailed spectral analyses of transitions between excited states have furnished complete energy values for J ≠ 1 levels of these spectra during 1970s and 80s. Shujauddin et al (1982) have worked out Nb VI and Tauheed et al (1984) Mo VII from our lab, while Khan et al (1981) share the work on Zr V with Reader and Acquista (1979).

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