2015:groups:higgs:morehiggs:largesplit
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2015:groups:higgs:morehiggs:largesplit [2015/06/15 10:21] jose_miguel.no |
2015:groups:higgs:morehiggs:largesplit [2015/06/18 11:54] jose_miguel.no |
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| **Responsible:** Jose Mi No | **Responsible:** Jose Mi No | ||
| - | **Members:** Ken Mimasu, Werner Porod, Jérémy Bernon, Andrey Katz, Dipan Sengupta | + | **Members:** Ken Mimasu, Werner Porod, Jérémy Bernon, Andrey Katz, Dipan Sengupta, Sanjoy Biswas |
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| These decays typically dominate the Br of the mother particle when the splitting is large, on one side weakening searches of the mother particle via other Br, on the other providing a new discovery mode for both mother and daughter particles (usually very clean). | These decays typically dominate the Br of the mother particle when the splitting is large, on one side weakening searches of the mother particle via other Br, on the other providing a new discovery mode for both mother and daughter particles (usually very clean). | ||
| - | **Possible projects/actions to be done**: | + | **Project**: |
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| + | * Assume light A0 scenario for 2HDM (m_A0 < 100 GeV, e.g. [[http://arxiv.org/abs/1412.3385]]). For TypeII 2HDM, a large splitting m_H0 - m_A0 ~ 200-300 GeV is required. For TypeI 2HDM, sizable m_H0 - m_A0 is not required but perfectly possible. In both cases, g g -> H0 -> Z A0 -> ll bb could probe this scenario for low tan_beta (< 5) as a complementary search to bbA0 ([[2015:groups:higgs:morehiggs:lowmassa]]). | ||
| + | * Use [[http://cds.cern.ch/record/2014119]] to extract the limits on tan_beta in the (m_A0,m_H0) plane, in the 2HDM alignment limit: | ||
| + | The plot below shows the excluded regions for Type I (left) and Type II (right): (red -> t_beta = 0.5; blue -> t_beta = 1; orange -> t_beta = 1.5; green -> t_beta = 2) | ||
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| + | {{:2015:groups:higgs:morehiggs:h0toa0ztriangle.jpeg?direct&300|}} {{:2015:groups:higgs:morehiggs:h0toa0ztriangle_type2.jpeg?direct&300|}} | ||
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| + | * LHC14 Prospects and interplay with bbA0 | ||
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| - | - Assume light A0 scenario for 2HDM (m_A0 < 100 GeV, e.g. [[http://arxiv.org/abs/1412.3385]]). For TypeII 2HDM, a large splitting m_H0 - m_A0 ~ 200-300 GeV is required. For TypeI 2HDM, sizable m_H0 - m_A0 is not required but perfectly possible. In both cases, g g -> H0 -> Z A0 -> ll bb could probe this scenario for low tan_beta (< 5-10) as a complementary search to bbA0 ([[2015:groups:higgs:morehiggs:lowmassa]]). | ||
| **Literature**: | **Literature**: | ||
2015/groups/higgs/morehiggs/largesplit.txt · Last modified: 2015/06/18 18:09 by jose_miguel.no
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