Properties of bottomonium in a semi-relativistic model

被引：5

作者：

Bhaghyesh ^{[1
]}

Kumar, K. B. Vijaya ^{[1
]}

机构：

[1] Mangalore Univ, Dept Phys, Mangalagangothri 574199, Karnataka, India

来源：

CHINESE PHYSICS C | 2013年 / 37卷 / 02期

关键词：

bottomonium; semi-relativistic model; decay rates; RELATIVIZED QUARK-MODEL; HEAVY-QUARK; DECAY; MESONS; CHARMONIUM; SPECTRUM; SYSTEMS;

D O I：

10.1088/1674-1137/37/2/023103

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：

Using a semi-relativistic potential model we investigate the spectra and decays of the bottomonium (b (b) over bar) system. The Hamiltonian of our model consists of a relativistic kinetic energy term, a vector Coulomb-like potential and a scalar confining potential. Using this Hamiltonian, we obtain a spinless wave equation, which is then reduced to the form of a single particle Schrodinger equation. The spin dependent potentials are introduced as a perturbation. The three-dimensional harmonic oscillator wave function is employed as a trial wave function and the b (b) over bar mass spectrum is obtained by the variational method. The model parameters and the wave function that reproduce the the b (b) over bar spectrum are then used to investigate some of their decay properties. The results obtained are then compared with the experimental data and with the predictions of other theoretical models.

引用

页数：6

共 54 条

[1]

Adachi I, ARXIV11033419V2HEPEX

[2] Observation of the bottomonium ground state in the decay Υ(3S)→γηb [J].

Aubert, B. ;

Bona, M. ;

Karyotakis, Y. ;

Lees, J. P. ;

Poireau, V. ;

Prencipe, E. ;

Prudent, X. ;

Tisserand, V. ;

Tico, J. Garra ;

Grauges, E. ;

Lopez, L. ;

Palano, A. ;

Pappagallo, M. ;

Eigen, G. ;

Stugu, B. ;

Sun, L. ;

Abrams, G. S. ;

Battaglia, M. ;

Brown, D. N. ;

Cahn, R. N. ;

Jacobsen, R. G. ;

Kerth, L. T. ;

Kolomensky, Yu. G. ;

Lynch, G. ;

Osipenkov, I. L. ;

Ronan, M. T. ;

Tackmann, K. ;

Tanabe, T. ;

Hawkes, C. M. ;

Soni, N. ;

Watson, A. T. ;

Koch, H. ;

Schroeder, T. ;

Walker, D. ;

Asgeirsson, D. J. ;

Fulsom, B. G. ;

Hearty, C. ;

Mattison, T. S. ;

McKenna, J. A. ;

Barrett, M. ;

Khan, A. ;

Blinov, V. E. ;

Bukin, A. D. ;

Buzykaev, A. R. ;

Druzhinin, V. P. ;

Golubev, V. B. ;

Onuchin, A. P. ;

Serednyakov, S. I. ;

Skovpen, Yu. I. ;

Solodov, E. P. .

PHYSICAL REVIEW LETTERS, 2008, 101 (07)

[3] Fine-structure splittings of excited P- and D-wave states in charmonium [J].

Badalian, AM ;

Morgunov, VL ;

Bakker, BLG .

PHYSICS OF ATOMIC NUCLEI, 2000, 63 (09) :1635-1639

[4] Nuclear physics from lattice QCD [J].

Beane, S. R. ;

Detmold, W. ;

Orginos, K. ;

Savage, M. J. .

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, 2011, 66 (01) :1-40

[5] CHARMONIUM SPECTRA AND DECAYS IN A SEMIRELATIVISTIC MODEL [J].

Bhaghyesh ;

Kumar, K. B. Vijaya .

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2012, 27 (22)

[6]

Bhaghyesh K. B., 2009, INT J MOD PHYS A, V27

[7]

Bhavyashri, 2005, J PHYS G, V31, P981

[8] Rigorous QCD analysis of inclusive annihilation and production of heavy quarkonium (vol 51, pg 1125, 1995) [J].

Bodwin, GT ;

Braaten, E ;

Lepage, GP .

PHYSICAL REVIEW D, 1997, 55 (09) :5853-5854

[9] Effective-field theories for heavy quarkonium [J].

Brambilla, N ;

Pineda, A ;

Soto, J ;

Vairo, A .

REVIEWS OF MODERN PHYSICS, 2005, 77 (04) :1423-1496

[10] Hadronic quarkonium decays at order v7 [J].

Brambilla, Nora ;

Vairo, Antonio ;

Mereghetti, Emanuele .

PHYSICAL REVIEW D, 2009, 79 (07)

← 1 2 3 4 5 6 →