Pentaquarks in QCD Sum Rule Approach

Journal Article · Thu Dec 02 00:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1843651· OSTI ID:20630386

Rodrigues da Silva, R; Matheus, R D; Navarra, F S; Nielsen, M ^[1]

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1. Instituto de Fisica, Universidade de Sao Paulo, C.P. 66318, 05389-970 Sao Paulo, SP (Brazil)

We estimate the mass of recently observed pentaquak staes {xi}- (1862) and {theta}+(1540) using two kinds of interpolating fields, containing two highly correlated diquarks, in the QCD sum rule approach. We obtained good agreement with the experimental value, using standard continuum threshold.

• OSTI ID: 20630386
• Journal Information: AIP Conference Proceedings, Vol. 739, Issue 1; Conference: Joint meeting on QCD and QCP: 9. hadron physics and 7. relativistic aspects of nuclear physics, Rio de Janeiro (Brazil), 28 Mar - 3 Apr 2004; Other Information: DOI: 10.1063/1.1843651; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PARTICLE IDENTIFICATION
QUANTUM CHROMODYNAMICS
QUARKS
REST MASS
SUM RULES