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Cao, JJ; Hikasa, K; Wang, WY; Yang, JM ; Yang, JM (reprint author), Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China.
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| Light dark matter in NMSSM and implication on Higgs phenomenology | |
| Source Publication | PHYSICS LETTERS B
 |
| Language | 英语 |
| Keyword | Supersymmetric Standard Model |
| Abstract | For the experimental search of neutralino dark matter, it is important to know its allowed mass and scattering cross section with the nucleon. In order to figure out how light a neutralino dark matter can be predicted in low energy supersymmetry, we scan over the parameter space of the NMSSM (next-to-minimal supersymmetric model), assuming all the relevant soft mass parameters to be below TeV scale. We find that in the parameter space allowed by current experiments the neutralino dark matter can be as light as a few GeV and its scattering rate off the nucleon can reach the sensitivity of XENON100 and CoGeNT. As a result, a sizable parameter space is excluded by the current XENON100 and CoGeNT data (the plausible CoGeNT dark matter signal can also be explained). The future 6000 kg-days exposure of XENON100 will further explore (but cannot completely cover) the remained parameter space. Moreover, we find that in such a light dark matter scenario a light CP-even or CP-odd Higgs boson must be present to satisfy the measured dark matter relic density. Consequently, the SM-like Higgs boson h(SM) may decay predominantly into a pair of light Higgs bosons or a pair of neutralinos so that the conventional decays like h(SM) -> gamma gamma is much suppressed. (C) 2011 Elsevier B.V. All rights reserved. |
| 2011 | |
| ISSN | 0370-2693 |
| Volume | 703Issue:3Pages:292-297 |
| Subject Area | Physics |
| Indexed By | SCI |
| Funding Organization | JSPS [S-11028]; NSFC [10821504, 10725526, 11075045, 11005006]; Doctor Foundation of BJUT from China [X0006015201102]; Grant-in-Aid for Scientific Research from Japan [14046201] ; JSPS [S-11028]; NSFC [10821504, 10725526, 11075045, 11005006]; Doctor Foundation of BJUT from China [X0006015201102]; Grant-in-Aid for Scientific Research from Japan [14046201] ; JSPS [S-11028]; NSFC [10821504, 10725526, 11075045, 11005006]; Doctor Foundation of BJUT from China [X0006015201102]; Grant-in-Aid for Scientific Research from Japan [14046201] ; JSPS [S-11028]; NSFC [10821504, 10725526, 11075045, 11005006]; Doctor Foundation of BJUT from China [X0006015201102]; Grant-in-Aid for Scientific Research from Japan [14046201] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/14272 |
| Collection | SCI期刊论文 |
| Corresponding Author | Yang, JM (reprint author), Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Cao, JJ,Hikasa, K,Wang, WY,et al. Light dark matter in NMSSM and implication on Higgs phenomenology[J]. PHYSICS LETTERS B,2011,703(3):292-297. |
| APA | Cao, JJ,Hikasa, K,Wang, WY,Yang, JM,&Yang, JM .(2011).Light dark matter in NMSSM and implication on Higgs phenomenology.PHYSICS LETTERS B,703(3),292-297. |
| MLA | Cao, JJ,et al."Light dark matter in NMSSM and implication on Higgs phenomenology".PHYSICS LETTERS B 703.3(2011):292-297. |
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