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Author  |
Bolton, P.D.; Fajfer, S.; Kamenik, J.F.; Novoa-Brunet, M. |
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Title |
Impact of new invisible particles on B-* K(*)Emiss observables |
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Journal Article |
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Year |
2025 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
112 |
Issue |
3 |
Pages |
035010 - 14pp |
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Abstract |
Motivated by a recent Belle II measurement that suggests an excess in the rare decay B-* KEmiss, and building upon our recent differential decay rate likelihood analysis of the existing experimental information, we investigate possible new physics (NP) scenarios in which light invisible states participate in flavor-changing b-* s transitions. In particular, we consider the total and differential B-* K*Emiss decay rates and K* polarization effects in each NP scenario preferred by the B-* KEmiss measurement. We show that future measurements of these B-* K*Emiss observables will offer decisive discrimination among the different NP explanations. Our results highlight the strong complementarity of the rare semi-invisible b-hadron decay observables, and underline the importance of analysing their momentum transfer spectra when probing extensions of the Standard Model that feature new light degrees of freedom. |
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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 |
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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:001550580200003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6805 |
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