| LHC上重夸克偶素hc(hb)与光子伴随产生的研究 |
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| 引用本文： | 马政伟,宋昴,李刚. LHC上重夸克偶素hc(hb)与光子伴随产生的研究[J]. 安徽大学学报(自然科学版), 2016, 40(6): 46-50. DOI: 10.3969/j.issn.1000-2162.2016.06.009 |
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| 作者姓名： | 马政伟 宋昴 李刚 |
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| 作者单位： | 安徽大学 物理与材料科学学院,安徽 合肥,230601;安徽大学 物理与材料科学学院,安徽 合肥,230601;安徽大学 物理与材料科学学院,安徽 合肥,230601 |
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| 基金项目： | 国家自然科学基金资助项目(11305001) |
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| 摘 要： | 应用非相对论量子色动力学理论,对大型强子对撞机(LHC)上重夸克偶素h_c(h_b)与光子伴随产生进行研究.采用协变投影方法,计算pp→hQ+γ过程的总截面及其p_T微分截面,计算中考虑了Fock态n=~1S_0~8,~1P_1~1对于重夸克偶素h_Q的贡献.从计算结果可以看出:pp→h_c+γ过程的总截面在合理的参数空间内可以达到8×10~4 pb量级,pp→h_b+γ过程的总截面在合理的参数空间内可以达到1.5×10~6 pb量级.考虑到LHC的亮度,该过程有可能被LHC探测到.若该过程能够在LHC上进行研究,这将为非相对论量子色动力学提供一个重要的实验支撑.
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| 关 键 词： | 非相对论量子色动力学 重夸克偶素 光子 |
The research of heavy quarkonium hc(hb) production in association with a photon at the LHC |
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| MA Zhengwei,SONG Mao,LI Gang. The research of heavy quarkonium hc(hb) production in association with a photon at the LHC[J]. Journal of Anhui University(Natural Sciences), 2016, 40(6): 46-50. DOI: 10.3969/j.issn.1000-2162.2016.06.009 |
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| Authors: | MA Zhengwei SONG Mao LI Gang |
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| Abstract: | By nonrelativistic QCD(NRQCD) theory, the associated production of prompt heavy quarkonium hc(hb) in association with a photon at the LHC was investigated.The total cross section and pT differential cross section of the processes pp→hQ+γ were calculated.In our calculation, the contribution of Fock state of n=1S,1P to the heavy quarkonium hQ was taken into consideration.From the result, the cross section of the processes pp→hc+γ, in reasonable parameter space, it could reach8×104 pb.As for the processes pp→hb+γ in reasonable parameter space, it could reach1.5×106 pb.Given the luminosity of LHC, these processes had the potential that could be tested on the LHC, the experimental research of this process might give a very important support for investigating NRQCD. |
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| Keywords: | NRQCD heavy quarkonium photon |
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