Lattice study of the H dibaryon

被引:25
作者
Negele, JW [1 ]
Pochinsky, A [1 ]
Scarlet, B [1 ]
机构
[1] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
关键词
D O I
10.1016/S0920-5632(99)85040-3
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The mass of the lowest spin-zero, strangeness-(-2) flavor singlet state in the dibaryon sector has been calculated in quenched QCD on 16(3) x 32 and 24(3) x 32 lattices at beta = 5.85 to study whether the energy of the proposed H dibaryon is near or below the hh threshold. Preliminary results indicate that finite lattice volume artifacts overestimate the binding, and that on the largest lattice m(H) is of the order of 100 MeV above the Lambda Lambda threshold.
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页码:255 / 257
页数:3
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