Knowledge Management System of Institute of Theoretical Physics, CAS
Han, CC; Wu, L; Yang, JM ; Zhang, MC; Zhang, Y; Han, CC (reprint author), Asia Pacific Ctr Theoret Phys, San 31, Pohang 790784, South Korea.
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| New approach for detecting a compressed bino/wino at the LHC | |
| Source Publication | PHYSICAL REVIEW D
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| Language | 英语 |
| Abstract | In some supersymmetric models like split supersymmetry or models with nonuniversal gaugino mass, 'bino [lightest sparticle (LSP)] and wino [next-to-lightest sparticle (NLSP)] may have rather small mass splitting in order to provide the correct dark matter relic density through bino/wino coannihilation. Such a scenario with the compressed bino/wino is difficult to explore at the LHC. In this work we propose to probe this scenario from pp -> j (chi) over tilde (0)(2)(chi) over tilde (+/-)(1) followed by (chi) over tilde (0)(2) -> gamma(chi) over tilde (0)(1) and (chi) over tilde (+/-)(1) -> W*(chi) over tilde (0)(1) -> l(+/-)nu(chi) over tilde (0)(1) (this method is also applicable to the compressed bino/Higgsino scenario). Through a detailed Monte Carlo simulation for both the signal and the backgrounds, we find that for a mass splitting Delta M similar to 10-15 GeV between bino (LSP) and wino (NLSP), the 14 TeV LHC with a luminosity of 1000 fb(-1) can probe the wino up to 150 GeV (the sensitivity can reach 3.4 sigma for Delta M = 10 GeV and 2 sigma for Delta M = 15 GeV). We also investigate the dark matter detection sensitivities for this scenario and find that the planned XENON-1T (2017) cannot fully cover the parameter space with a wino below 150 GeV allowed by relic density and the LUX limits. |
| 2015 | |
| Volume | 91Issue:5Pages:55030 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| DOI | http://dx.doi.org/10.1103/PhysRevD.91.055030 |
| Indexed By | SCI |
| Funding Organization | Korea Ministry of Education, Science and Technology (MEST) under the Young Scientist Training Program at the Asia Pacific Center for Theoretical Physics (APCTP) ; Korea Ministry of Education, Science and Technology (MEST) under the Young Scientist Training Program at the Asia Pacific Center for Theoretical Physics (APCTP) ; Korea Ministry of Education, Science and Technology (MEST) under the Young Scientist Training Program at the Asia Pacific Center for Theoretical Physics (APCTP) ; Korea Ministry of Education, Science and Technology (MEST) under the Young Scientist Training Program at the Asia Pacific Center for Theoretical Physics (APCTP) ; Australian Research Council ; Australian Research Council ; Australian Research Council ; Australian Research Council ; National Natural Science Foundation of China (NNSFC) [11222548, 11305049, 11405047, 11275245, 10821504, 11135003] ; National Natural Science Foundation of China (NNSFC) [11222548, 11305049, 11405047, 11275245, 10821504, 11135003] ; National Natural Science Foundation of China (NNSFC) [11222548, 11305049, 11405047, 11275245, 10821504, 11135003] ; National Natural Science Foundation of China (NNSFC) [11222548, 11305049, 11405047, 11275245, 10821504, 11135003] ; Specialized Research Fund for the Doctoral Program of Higher Education [20134104120002] ; Specialized Research Fund for the Doctoral Program of Higher Education [20134104120002] ; Specialized Research Fund for the Doctoral Program of Higher Education [20134104120002] ; Specialized Research Fund for the Doctoral Program of Higher Education [20134104120002] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/21045 |
| Collection | SCI期刊论文 |
| Corresponding Author | Han, CC (reprint author), Asia Pacific Ctr Theoret Phys, San 31, Pohang 790784, South Korea. |
| Recommended Citation GB/T 7714 | Han, CC,Wu, L,Yang, JM,et al. New approach for detecting a compressed bino/wino at the LHC[J]. PHYSICAL REVIEW D,2015,91(5):55030. |
| APA | Han, CC,Wu, L,Yang, JM,Zhang, MC,Zhang, Y,&Han, CC .(2015).New approach for detecting a compressed bino/wino at the LHC.PHYSICAL REVIEW D,91(5),55030. |
| MLA | Han, CC,et al."New approach for detecting a compressed bino/wino at the LHC".PHYSICAL REVIEW D 91.5(2015):55030. |
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| File Name/Size | DocType | Version | Access | License | ||
| New approach for det（665KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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