Prediction of the Ωbbb mass from lattice QCD

被引：37

作者：

Meinel, Stefan ^{[1
]}

机构：

[1] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 11期

关键词：

HEAVY BARYON SPECTROSCOPY; CHARMED BARYONS; CHIRAL FERMIONS; RENORMALIZATION; STATES;

D O I：

10.1103/PhysRevD.82.114514

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The mass of the triply-heavy baryon Omega(bbb) is calculated in lattice QCD with 2 + 1 flavors of light sea quarks. The b quark is implemented with improved lattice nonrelativistic QCD. Gauge field ensembles from both the RBC/UKQCD and MILC collaborations with lattice spacings in the range from 0.08 fm to 0.12 fm are used. The final result for the Omega(bbb) mass, which includes an electrostatic correction, is 14.371 +/- 0.004(stat) +/- 0.011(syst) +/- 0.001(exp) GeV. The hyperfine splitting between the physical J = 3/2 state and a fictitious J = 1/2 state is also calculated.

引用

页数：9

共 69 条

[1] DO NARROW HEAVY MULTIQUARK STATES EXIST [J].

ADER, JP ;

RICHARD, JM ;

TAXIL, P .

PHYSICAL REVIEW D, 1982, 25 (09) :2370-2382

[2] LATTICE QCD ON SMALL COMPUTERS [J].

ALFORD, M ;

DIMM, W ;

LEPAGE, GP ;

HOCKNEY, G ;

MACKENZIE, PB .

PHYSICS LETTERS B, 1995, 361 (1-4) :87-94

[3] 2+1 flavor domain wall QCD on a (2 fm)3 lattice:: Light meson spectroscopy with Ls=16 [J].

Allton, C. ;

Antonio, D. J. ;

Blum, T. ;

Bowler, K. C. ;

Boyle, P. A. ;

Christ, N. H. ;

Cohen, S. D. ;

Clark, M. A. ;

Dawson, C. ;

Hart, A. ;

Hashimoto, K. ;

Izubuchi, T. ;

Juettner, A. ;

Jung, C. ;

Kennedy, A. D. ;

Kenway, R. D. ;

Li, M. ;

Li, S. ;

Lin, M. F. ;

Mawhinney, R. D. ;

Maynard, C. M. ;

Noaki, J. ;

Ohta, S. ;

Pendleton, B. J. ;

Sasaki, S. ;

Scholz, E. E. ;

Soni, A. ;

Tweedie, R. J. ;

Yamaguchi, A. ;

Yamazaki, T. .

PHYSICAL REVIEW D, 2007, 76 (01)

[4] Physical results from 2+1 flavor domain wall QCD and SU(2) chiral perturbation theory [J].

Allton, C. ;

Antonio, D. J. ;

Aoki, Y. ;

Blum, T. ;

Boyle, P. A. ;

Christ, N. H. ;

Clark, M. A. ;

Cohen, S. D. ;

Dawson, C. ;

Donnellan, M. A. ;

Flynn, J. M. ;

Hart, A. ;

Izubuchi, T. ;

Jung, C. ;

Juttner, A. ;

Kennedy, A. D. ;

Kenway, R. D. ;

Li, M. ;

Li, S. ;

Lin, M. F. ;

Mawhinney, R. D. ;

Maynard, C. M. ;

Ohta, S. ;

Pendleton, B. J. ;

Sachrajda, C. T. ;

Sasaki, S. ;

Scholz, E. E. ;

Soni, A. ;

Tweedie, R. J. ;

Wennekers, J. ;

Yamazaki, T. ;

Zanotti, J. M. .

PHYSICAL REVIEW D, 2008, 78 (11)

[5] Review of particle physics [J].

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. .

PHYSICS LETTERS B, 2008, 667 (1-5) :1-+

[6]

[Anonymous], POS LAT2009

[7] Domain wall fermions with improved gauge actions [J].

Aoki, Y ;

Blum, T ;

Christ, N ;

Cristian, C ;

Dawson, C ;

Izubuchi, T ;

Liu, G ;

Mawhinney, R ;

Ohta, S ;

Orginos, K ;

Soni, A ;

Wu, L .

PHYSICAL REVIEW D, 2004, 69 (07) :18

[8] QCD forces and heavy quark bound states [J].

Bali, GS .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2001, 343 (1-2) :1-136

[9] Production of triply charmed Ωccc baryons in e+e- annihilation [J].

Baranov, SP ;

Slad, VL .

PHYSICS OF ATOMIC NUCLEI, 2004, 67 (04) :808-814

[10] BARYON MASSES IN RELATIVISTIC POTENTIAL MODELS [J].

BASDEVANT, JL ;

BOUKRAA, S .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1986, 30 (01) :103-114

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