Nucleon resonances with spin 3/2 and isospin 1/2

被引:3
作者
Azizi, K. [1 ,2 ]
Sarac, Y. [3 ]
Sundu, H. [4 ]
机构
[1] Univ Tehran, Dept Phys, North Karegar Ave, Tehran 14395547, Iran
[2] Dogus Univ, Dept Phys, TR-34722 Istanbul, Turkey
[3] Atilim Univ, Elect & Elect Engn Dept, TR-06836 Ankara, Turkey
[4] Kocaeli Univ, Dept Phys, TR-41380 Izmit, Turkey
关键词
nucleons; excited states; mass and residue; RELATIVIZED QUARK-MODEL; REACTION GAMMA-P; QUANTUM CHROMODYNAMICS; HIGH-STATISTICS; BARYON MASSES; SUM-RULE; QCD;
D O I
10.1088/1361-6471/ab9d37
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
Investigation of the nucleon's excited states has always become an important research topic because of the rich information they provide. Since their first observation, dating back about 70 years, the investigation of their various parameters contributed both to the development of the quark model and a better understanding of the QCD as the theory of strong interaction. Their investigation still has importance. The research conducted on the nucleon excited states is helpful to probe the missing resonances predicted by the quark model but not observed yet. With this motivation, we study the low lying nucleon resonance with I(J(P)) = 1/2(3/2(-)) and its corresponding orbital and radial excitations with I(J(P)) = 1/2(3/2(+)) and I(J(P)) = 1/2(3/2(-)), respectively. Using the QCD sum rule method, we calculate the masses and pole residues of these states. The obtained mass results are consistent with the mass ranges presented in PDG for the resonances N(1520)(3/2(-)), N(1700)(3/2(-)), and N(1720)(3/2(+)). The results of masses and residues of these states may be used as input parameters to calculate various quantities related to their electromagnetic, weak and strong interactions with other particles with the aim of getting more information on their natures and structures.
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页数:10
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共 69 条
[51]   Partial wave analysis [J].
Klempt, Eberhard ;
Sarantsev, Andrey V. ;
Thoma, Ulrike .
SUBNUCLEAR STRUCTURE OF MATTER: ACHIEVEMENTS AND CHALLENGES, 2017, 134
[52]   IMPROVED PI-N PARTIAL-WAVES, CONSISTENT WITH ANALYTICITY AND UNITARITY [J].
KOCH, R .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1985, 29 (04) :597-609
[53]   Coupled QCD sum rules for positive and negative-parity nucleons [J].
Kondo, Y ;
Morimatsu, O ;
Nishikawa, T .
NUCLEAR PHYSICS A, 2006, 764 :303-312
[54]   Non-convex polygons clustering algorithm [J].
Kruglikov, Alexey ;
Vasilenko, Mikhail .
INTERNATIONAL CONFERENCE ON BIG DATA AND ITS APPLICATIONS (ICBDA 2016), 2016, 8
[55]   Predictive ability of QCD sum rules for excited baryons [J].
Lee, FX ;
Liu, XY .
PHYSICAL REVIEW D, 2002, 66 (01) :140141-1401421
[56]   Negative-parity baryon spectroscopy [J].
Lee, FX ;
Leinweber, DB .
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 73 :258-260
[57]   First results from 2+1 dynamical quark flavors on an anisotropic lattice: Light-hadron spectroscopy and setting the strange-quark mass [J].
Lin, Huey-Wen ;
Cohen, Saul D. ;
Dudek, Jozef ;
Edwards, Robert G. ;
Joo, Balint ;
Richards, David G. ;
Bulava, John ;
Foley, Justin ;
Morningstar, Colin ;
Engelson, Eric ;
Wallace, Stephen ;
Juge, K. Jimmy ;
Mathur, Nilmani ;
Peardon, Michael J. ;
Ryan, Sinead M. .
PHYSICAL REVIEW D, 2009, 79 (03)
[58]   Semirelativistic approximation to the γ*N → N (1520) and γ*N → N(1535) transition form factors [J].
Ramalho, G. .
PHYSICAL REVIEW D, 2017, 95 (05)
[59]   Octet and decuplet masses: A covariant three-body Faddeev calculation [J].
Sanchis-Alepuz, Helios ;
Fischer, Christian S. .
PHYSICAL REVIEW D, 2014, 90 (09)
[60]   Strange and nonstrange baryon spectra in the relativistic interacting quark-diquark model with a Gursey and Radicati-inspired exchange interaction [J].
Santopinto, E. ;
Ferretti, J. .
PHYSICAL REVIEW C, 2015, 92 (02)