The scalar hexaquark uuddss: a candidate to dark matter?

被引：14

作者：

Azizi, K. ^{[1
,2
]}

Agaev, S. S. ^{[3
]}

Sundu, H. ^{[4
]}

机构：

[1] Univ Tehran, Dept Phys, North Karegar Ave, Tehran 14395547, Iran

[2] Dogus Univ, Dept Phys, TR-34722 Istanbul, Turkey

[3] Baku State Univ, Inst Phys Problems, AZ-1148 Baku, Azerbaijan

[4] Kocaeli Univ, Dept Phys, TR-41380 Izmit, Turkey

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2020年 / 47卷 / 09期

关键词：

hexaquark; mass and residue; dark matter; HYPERON HYPERON INTERACTION; H-DIBARYON; MASS; F(0)(500); EXISTENCE; NUCLEON; BINDING; HADRONS; ENERGY; MODEL;

D O I：

10.1088/1361-6471/ab9a0e

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：

It is conventionally argued that dark matter (DM) has a non-baryonic nature, but if we assume that DM was frozen out before primordial nucleosynthesis and could not significantly impact primordial abundances this argument may be evaded. Then a hypothetical SU(3) flavor-singlet, highly symmetric, deeply bound neutral scalar hexaquark S = uuddss, which due to its features has escaped from experimental detection so far, may be considered as a candidate for a baryonicDM. In the presentwork we calculate themass and coupling constant of the scalar six-quark particle S by means of the QCD sum rule method. Our predictions for its mass are m(S) = 1180(-26)(+40) MeV (m(s) = 95 MeV) and (m) over tilde (S) = 1239(-28)(+42) MeV (m(s) = 128 MeV). Although these values of mass would produce thermally the cosmologicalDMabundance, existence of this state may contradict the stability of the oxygen nuclei, which requires further thorough analysis.

引用

页数：15

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