Higgs signal in chargino-neutralino production at the LHC

被引：31

作者：

Ghosh, Diptimoy ^{[1
]}

Guchait, Monoranjan ^{[2
]}

Sengupta, Dipan ^{[2
]}

机构：

[1] Tata Inst Fundamental Res, Dept Theoret Phys, Bombay 400005, Maharashtra, India

[2] Tata Inst Fundamental Res, Dept High Energy Phys, Mumbai 400005, Maharashtra, India

来源：

EUROPEAN PHYSICAL JOURNAL C | 2012年 / 72卷 / 09期

关键词：

DECAYS; BOSONS; GLUINO; SQUARK;

D O I：

10.1140/epjc/s10052-012-2141-8

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We have analyzed the prospect of detecting a Higgs signal in mSUGRA/cMSSM based Supersymmetric (SUSY) model via chargino-neutralino ((chi) over tilde (+/-)(1)(chi) over tilde (0)(2)) production at 8 TeV and 14 TeV LHC energies. The signal is studied in the l + b (b) over barb + (p) over bar (T) channel following the decays, (chi) over tilde (+/-)(1) -> W-+/-(chi) over tilde (0)(1), (chi) over tilde (0)(2) -> (chi) over tilde (0)(1)h and h -> b (b) over bar. In this analysis reconstruction of the Higgs mass out of two b jets plays a very crucial role in determining the signal to background ratio. We follow two techniques to reconstruct the Higgs mass: (A) adding momenta of two identified b jets, (B) jet substructure technique. In addition, imposing a certain set of selection cuts we observe that the significance is better for the method (B). We find that a signal can be observed for the Higgs mass similar to 125 GeV with an integrated luminosity 100 fb(-1) for both 8 TeV and 14 TeV LHC energies.

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页数：7

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