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Novel B-decay signatures of light scalars at high energy facilities.

Blance, Andrew and Chala, Mikael and Ramos, Maria and Spannowsky, Michael (2019) 'Novel B-decay signatures of light scalars at high energy facilities.', Physical review D., 100 (11). p. 115015.


We study the phenomenology of light scalars of masses m1 and m2 coupling to heavy flavor-violating vector bosons of mass mV. For m1;2 ≲ few GeV, this scenario triggers the rare B meson decays B0s → 3μþ3μ−, B0 → 3μþ3μ−, Bþ → Kþ3μþ3μ−, and B0s → K03μþ3μ−; the last two being the most important ones for m1 ∼ m2. None of these signals have been studied experimentally; therefore, we propose analyses to test these channels at the LHCb. We demonstrate that the reach of this facility extends to branching ratios as small as 6.0 × 10−9, 1.6 × 10−9, 5.9 × 10−9, and 1.8 × 10−8 for the aforementioned channels, respectively. For m1;2 ≫ Oð1Þ GeV, we show that slightly modified versions of current multilepton and multitau searches at the LHC can probe wide regions of the parameter space of this scenario. Altogether, the potential of the searches we propose outperform other constraints such as those from meson mixing.

Item Type:Article
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Publisher statement:Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Date accepted:No date available
Date deposited:10 December 2019
Date of first online publication:06 December 2019
Date first made open access:10 December 2019

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