论文标题

激发的双重重幸运子通过希格斯腐烂生产

Excited doubly heavy baryons production via Higgs decays

论文作者

Ma, Hong-Hao, Niu, Juan-Juan

论文摘要

通过Higgs与标准模型中重型夸克的相互作用,我们已经系统地研究并预测了基于非相关主义QCD理论的双重重型重子的产生。通过该过程$ h \ rightarrow \ langle qq'\ rangle [n] \ rightArrowξ_{qq'} + bar {q'} + \ bar {q'} + \ bar {q {q} $讨论了衰减宽度的双重重磅baryons的衰减宽度,差分分布和重大的双重重baryons的主要理论不确定性。中间$ p $ -Wave diquark状态$ \ langle qq'\ rangle [n] $的旋转和颜色量子数可以是$ \ langle cc \ rangle [^{1} p_ {1} p_ {1}] _ { cc \ rangle [^{3} p_ {j}] _ {\ MathBf {6}} $,$ \ langle bc \ rangle [^{1} p_ {1} _ {1}] _ { bc \ rangle [^{3} p_ {j}] _ {\ MathBf {\ bar 3}/ \ Mathbf {6}} $,$ \ langle bb \ rangle [^{1} p_ {1} p_ {1} bb \ rangle [^{3} p_ {j}] _ {\ mathbf {6}} $,$ j = 0,1,2 $。所有总结的$ p $ - 波状态的贡献约为$ 3.05 \%$,$ 3.23 \%$和$ 2.19 \%$ $ s $ - $ $ $ s $ - 波状态,用于生产$ξ_{cc} $,$ξ_{bc} $和$ξ_{bc} $和$之一{bb} $,$。因此,将有大约0.41 $ \ times10^4 $的事件,$ξ_{cc} $,6.35 $ \ times10^4 $ $ $ξ_{bc} $的事件和0.28 $ \ times10^4 $事件的$ $ξ_{bb} $每年在HL-LHC上产​​生的较小的事件,并且是一个较小的事件,但A at a aft a a ford at a a ford at a aft cep at cep cep cep cep cep cep cep cep cep cep。可以通过实验测量。

Through the interaction of Higgs with heavy quarks in standard model, we have systematically studied and predicted the production of excited doubly heavy baryons based on non-relativistic QCD theory. The decay widths, differential distributions, and major theoretical uncertainties of the excited doubly heavy baryons via the process $H \rightarrow \langle QQ'\rangle[n] \rightarrow Ξ_{QQ'}+ \bar {Q'} + \bar {Q}$ are discussed in detail. The spin and color quantum number of the intermediate $P$-wave diquark state $\langle QQ'\rangle[n]$ can be $\langle cc\rangle[^{1}P_{1}]_{\mathbf{\bar 3}}$, $\langle cc\rangle[^{3}P_{J}]_{\mathbf{6}}$, $\langle bc\rangle[^{1}P_{1}]_{\mathbf{\bar 3}/ \mathbf{6}}$, $\langle bc\rangle[^{3}P_{J}]_{\mathbf{\bar 3}/ \mathbf{6}}$, $\langle bb \rangle[^{1}P_{1}]_{\mathbf{\bar 3}}$ and $\langle bb\rangle[^{3}P_{J}]_{\mathbf{6}}$, with $J=0, 1, 2$. The contributions from all summed $P$-wave states can be about $3.05\%$, $3.23\%$ and $2.19\%$ of the $S$-wave states for the production of $Ξ_{cc}$, $Ξ_{bc}$ and $Ξ_{bb}$, accordingly. Therefore, there will be about 0.41$\times10^4$ events of $Ξ_{cc}$, 6.35$\times10^4$ events of $Ξ_{bc}$ and 0.28$\times10^4$ events of $Ξ_{bb}$ produced per year at the HL-LHC, and a smaller number of events would be produced at the CEPC or ILC but with a cleaner background to be measured by the experiments.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源