A new energy-dependent quark interaction from a Tamm-Dancoff reduction of an effective field theory quark model

被引:18
作者
De Sanctis, M. [1 ]
Quintero, P. [1 ]
机构
[1] Univ Nacl Colombia, Dept Fis, Bogota, DC, Colombia
关键词
BOUND-STATES; SPECTRUM; SPECTROSCOPY; QCD;
D O I
10.1140/epja/i2008-10720-5
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
A new quark interaction is derived, by means of a Tamm-Dancoff reduction, from an effective field theory constituent quark model. In contrast to the standard Coulombic potential, the obtained interaction is nonlocal and energy dependent. Furthermore, it becomes positive and rises up to a maximum value when the interquark distance increases, partially resembling some aspects of the phenomenological Cornell potential.
引用
收藏
页码:145 / 148
页数:4
相关论文
共 21 条
  • [1] Quark confinement: the hard problem of hadron physics
    Alkofer, R.
    Greensite, J.
    [J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2007, 34 (07) : S3 - S21
  • [2] BALI G, 2008, INT REV NUCL PHYS, V9
  • [3] RELATIVISTIC CORRECTIONS TO THE QUARK-ANTIQUARK POTENTIAL AND THE QUARKONIUM SPECTRUM
    BARCHIELLI, A
    BRAMBILLA, N
    PROSPERI, GM
    [J]. NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1990, 103 (01): : 59 - 83
  • [4] BERESTETSKII VB, 1982, QUANTUM ELECTRODYNAM, V4, P336
  • [5] Static quark potential in three flavor QCD
    Bernard, C
    Burch, T
    Orginos, K
    Toussaint, D
    DeGrand, TA
    DeTar, C
    Gottlieb, S
    Heller, UM
    Hetrick, JE
    Sugar, B
    [J]. PHYSICAL REVIEW D, 2000, 62 (03) : 1 - 7
  • [6] Quarkonium spectroscopy and perturbative QCD: a new perspective
    Brambilla, N
    Sumino, Y
    Vairo, A
    [J]. PHYSICS LETTERS B, 2001, 513 (3-4) : 381 - 390
  • [7] Electromagnetic form factors and the hypercentral constituent quark model
    De Sanctis, M.
    Giannini, M. M.
    Santopinto, E.
    Vassallo, A.
    [J]. PHYSICAL REVIEW C, 2007, 76 (06):
  • [8] Covariant Hamiltonian dynamics with negative-energy states
    De Sanctis, M.
    [J]. EUROPEAN PHYSICAL JOURNAL A, 2007, 33 (01) : 71 - 86
  • [9] A COVARIANT 2-NUCLEON WAVE-EQUATION WITH RETARDATION CONTRIBUTIONS
    DESANCTIS, M
    PROSPERI, D
    [J]. NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1994, 107 (04): : 611 - 636
  • [10] SPECTRUM OF CHARMED QUARK-ANTIQUARK BOUND-STATES
    EICHTEN, E
    GOTTFRIED, K
    KINOSHITA, T
    KOGUT, J
    LANE, KD
    YAN, TM
    [J]. PHYSICAL REVIEW LETTERS, 1975, 34 (06) : 369 - 372