Two-photon and two-gluon decays of p-wave heavy quarkonium using a covariant light-front approach

被引：33
作者：
Hwang, Chien-Wen [1 ]
Guo, Rurng-Sheng [1 ]
机构：
[1] Natl Kaohsiung Normal Univ, Dept Phys, Kaohsiung 824, Taiwan
来源：
PHYSICAL REVIEW D | 2010年 / 82卷 / 03期
关键词：
FORM-FACTORS; ANNIHILATION RATE; QCD PREDICTIONS; MODEL; MESONS; QUARKS; RATES;
D O I：
10.1103/PhysRevD.82.034021
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, a study of two-photon and two-gluon decays in the context of p-wave heavy quarkonia is presented. Within the covariant light-front framework, the annihilation rates of scalar and tensor quarkonium states are derived. In the absence of free parameters in this case, the results for the charmonium decay widths are consistent with the experimental data. However, in comparison to other theoretical calculations, there are large discrepancies in our results regarding bottomonia.
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页数：10
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共 49 条
  • [1] Review of particle physics
    Amsler, C.
    Doser, M.
    Antonelli, M.
    Asner, D. M.
    Babu, K. S.
    Baer, H.
    Band, H. R.
    Barnett, R. M.
    Bergren, E.
    Beringer, J.
    Bernardi, G.
    Bertl, W.
    Bichsel, H.
    Biebel, O.
    Bloch, P.
    Blucher, E.
    Blusk, S.
    Cahn, R. N.
    Carena, M.
    Caso, C.
    Cecccci, A.
    Chakraborty, D.
    Chen, M. -C.
    Chivukula, R. S.
    Cowan, G.
    Dahl, O.
    D'Ambrosio, G.
    Damour, T.
    de Gouvea, A.
    DeGrand, T.
    Dobrescu, B.
    Drees, M.
    Edwards, D. A.
    Eidelman, S.
    Elvira, V. D.
    Erler, J.
    Ezhela, V. V.
    Feng, J. L.
    Fetscher, W.
    Fields, B. D.
    Foster, B.
    Gaisser, T. K.
    Garren, L.
    Gerber, H. -J.
    Gerbier, G.
    Gherghetta, T.
    Giudice, G. F.
    Goodman, M.
    Grab, C.
    Gritsan, A. V.
    [J]. PHYSICS LETTERS B, 2008, 667 (1-5) : 1 - +
  • [2] HEAVY QUARKS AND E+E- ANNIHILATION
    APPELQUIST, T
    POLITZER, HD
    [J]. PHYSICAL REVIEW LETTERS, 1975, 34 (01) : 43 - 45
  • [3] Spin-dependent interactions in quarkonia
    Badalian, A. M.
    Nefediev, A. V.
    Simonov, Yu. A.
    [J]. PHYSICAL REVIEW D, 2008, 78 (11):
  • [4] Restriction on the strong coupling constant in the IR region from the 1D-1P splitting in bottomonium
    Badalian, AM
    Veselov, AI
    Bakker, BLG
    [J]. PHYSICAL REVIEW D, 2004, 70 (01): : 016007 - 1
  • [5] CALCULATION OF ANNIHILATION RATE OF P-WAVE QUARK-ANTIQUARK BOUND-STATES
    BARBIERI, R
    GATTO, R
    KOGERLER, R
    [J]. PHYSICS LETTERS B, 1976, 60 (02) : 183 - 188
  • [6] BERESTETSKII VB, 1977, SOV J NUCL PHYS+, V25, P347
  • [7] BERESTETSKII VB, 1976, SOV J NUCL PHYS+, V24, P547
  • [8] Spin correlations and velocity scaling in color-octet nonrelativistic QCD matrix elements
    Bodwin, GT
    Lee, J
    Sinclair, DK
    [J]. PHYSICAL REVIEW D, 2005, 72 (01): : 1 - 11
  • [9] RIGOROUS QCD PREDICTIONS FOR DECAYS OF P-WAVE QUARKONIA
    BODWIN, GT
    BRAATEN, E
    LEPAGE, GP
    [J]. PHYSICAL REVIEW D, 1992, 46 (05) : R1914 - R1918
  • [10] Brambilla N., ARXIVHEPPH0412158
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