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Author  |
Bolton, P.D.; Fajfer, S.; Kamenik, J.F.; Novoa-Brunet, M. |
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Title |
Signatures of light new particles in B -> K(*) Emiss |
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Journal Article |
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Year |
2024 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
110 |
Issue |
5 |
Pages |
055001 - 16pp |
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Abstract |
The recent Belle II observation of B -* KEmiss challenges theoretical interpretations in terms of Standard Model neutrino final states. Instead, we consider new physics scenarios where up to two new light-invisible particles of spin 0 up to 3/2 are present in the final state. We identify viable scenarios by reconstructing the (binned) likelihoods of the relevant B -* K(*) Emiss and also Bs -* Emiss experimental analyses and present preferred regions of couplings and masses. In particular, we find that the current data prefer two-body decay kinematics involving the emission of a single massive scalar or a vector particle or, alternatively, three-body decays involving pairs of massive scalars or spin 1/2 fermions. When applicable, we compare our findings with existing literature and briefly discuss some model-building implications. |
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Address |
[Bolton, Patrick D.; Fajfer, Svjetlana; Kamenik, Jernej F.] Jozef Stefan Inst, Jamova 39, Ljubljana 1000, Slovenia, Email: patrick.bolton@ijs.si; |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Language |
English |
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Original Title |
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Series Title |
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Series Volume |
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Edition |
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ISSN |
2470-0010 |
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Notes |
WOS:001307818600012 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6259 |
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