论文标题
重度四夸克光谱和强子山脉的生产
Fully-heavy tetraquark spectra and production at hadron colliders
论文作者
论文摘要
通过使用Proton-Proton碰撞数据的LHCB合作数据观察到6900mev左右的外来结构的动机，我们研究了Bethe-Salpeter方程式中较重的Tetraquarks的光谱。 The $X(6900)$ may be explained as a radially excited state with quark content $cc\bar{c}\bar{c}$ and spin-parity $0^{++}(3S)$ or $2^{++}(3S)$ or an orbitally excited $2P$ state.预测新的$ cc \ bar {c} \ bar {c} $结构在6.0GEV，6.5GEV和7.1GEV左右。其他$ bb \ bar {b} \ bar {b} $和$ bc \ bar {b} \ bar {c} $结构可能会在实验上突出。另一方面，研究了强体的S-Wave Tetraquark Productions在强子山区上进行了研究，并获得了它们的横截面。
Motivated by the observation of exotic structure around 6900MeV in the $J/ψ$-pair mass spectrum using proton-proton collision data by the LHCb collaboration, we study the spectra of fully-heavy tetraquarks within Bethe-Salpeter equation and Regge trajectory relation. The $X(6900)$ may be explained as a radially excited state with quark content $cc\bar{c}\bar{c}$ and spin-parity $0^{++}(3S)$ or $2^{++}(3S)$ or an orbitally excited $2P$ state. New $cc\bar{c}\bar{c}$ structures around 6.0GeV, 6.5GeV, and 7.1GeV are predicted together. Other $bb\bar{b}\bar{b}$ and $bc\bar{b}\bar{c}$ structures which may be experimentally prominent are discussed. On the other hand, the fully-heavy S-wave tetraquark productions at hadron colliders are investigated and their cross-sections are obtained.
