Pseudoscalar boson and standard model-like Higgs boson productions at the LHC in the simplest little Higgs model
Pseudoscalar boson and standard model-like Higgs boson productions at the LHC in the simplest little Higgs model
复制标题
大型强子对撞机上最简单的小希格斯模型中的赝标量玻色子和标准模型希格斯玻色子的产生
DOI：
10.1103/physrevd.82.095009
复制
发表时间：
2010-11
期刊：
影响因子：
--
通讯作者：
Xiao-Fang Han
中科院分区：
文献类型：
--
作者：
Lei Wang;Xiao-Fang Han
在最简单的小希格斯模型的框架下，我们对LHC上伪标量玻色子{eta}和标准模型希格斯玻色子h的成对产生进行了全面的研究，即gg(bb){yield}{eta}{eta}, gg(qq){yield}{eta}h和gg(bb){yield}hh。这些生产过程为探测希格斯玻色子之间的耦合提供了一种方法。我们发现gg{产率}{eta}{eta}的截面总是优于bb{产率}{eta}{eta}的截面。当介导这两个过程的希格斯玻色子处于壳层态时，它们的横截面可以分别达到几千fb和几百fb。当中间态h为离壳态时，这两个截面分别减小了2个数量级。gg{产率}{eta}h和qq{产率}{eta}h的截面大致在同一数量级，轻{eta}玻色子的截面可以达到0 （10{sup 2} fb）。此外，与标准模型预测相比，在大型强子对撞机上一对类标准模型希格斯玻色子产生的横截面可以大大增强。最后，我们简要讨论了在大型强子对撞机上{eta}{eta}， {eta}h和hh的可观测特征。
In the framework of the simplest little Higgs model, we perform a comprehensive study for the pair productions of the pseudoscalar boson {eta} and standard model-like Higgs boson h at LHC, namely gg(bb){yields}{eta}{eta}, gg(qq){yields}{eta}h, and gg(bb){yields}hh. These production processes provide a way to probe the couplings between Higgs bosons. We find that the cross section of gg{yields}{eta}{eta} always dominates over that of bb{yields}{eta}{eta}. When the Higgs boson h which mediates these two processes is on-shell, their cross sections can reach several thousand fb and several hundred fb, respectively. When the intermediate state h is off-shell, those two cross sections are reduced by 2 orders of magnitude, respectively. The cross sections of gg{yields}{eta}h and qq{yields}{eta}h are about in the same order of magnitude, which can reach O(10{sup 2} fb) for a light {eta} boson. Besides, compared with the standard model prediction, the cross section of a pair of standard model-like Higgs bosons production at LHC can be enhanced sizably. Finally, we briefly discuss the observable signatures of {eta}{eta}, {eta}h, and hh at the LHC.
DOI：
10.1136/ebmh.11.4.102
发表时间：
2008-10
期刊：
Evidence Based Mental Health
影响因子：
--
作者：
P. Cochat;L. Vaucoret;J. Sarles
通讯作者：
P. Cochat;L. Vaucoret;J. Sarles