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Towards ruling out the charged Higgs interpretation of the ${R}_{D^{\left(\ast \right)}} $ anomaly

Blanke, Monika 1; Iguro, Syuhei ; Zhang, Hantian
1 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)

Abstract:

Motivated by the notorious anomaly in the lepton flavor universality ratios RD(∗), we study the sensitivity of the Large Hadron Collider (LHC) to a low-mass charged Higgs boson H− lighter than 400 GeV in a generic two Higgs doublet model. A combination of current constraints from the Bc → τν decay, Bs meson mixing data, tau sleptons and di-jet searches at the LHC allows to explain the RD(∗) anomaly at the 1σ level by a low-mass charged Higgs. In this context, we estimate the reach of an LHC search for resonant H− production, where the final state contains an energetic τ lepton decaying hadronically, a neutrino with large transverse momentum, and an additional b-jet (pp → b + τh + ν). Requiring the additional b-tagged jet in the τν resonance search profits from the suppression of the Standard Model background, and therefore it allows us to judge the low-mass H− interpretation of the RD(∗) anomaly. To demonstrate this, we perform a fast collider simulation for the τν resonance search with an additional b-tagged jet, and find that most of the interesting parameter region of the whole mass range can already be probed with the current integrated luminosity of 139 fb−1.


Verlagsausgabe §
DOI: 10.5445/IR/1000148458
Veröffentlicht am 11.07.2022
Originalveröffentlichung
DOI: 10.1007/JHEP06(2022)043
Scopus
Zitationen: 13
Web of Science
Zitationen: 14
Dimensions
Zitationen: 19
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Theoretische Teilchenphysik (TTP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 06.2022
Sprache Englisch
Identifikator ISSN: 1029-8479
KITopen-ID: 1000148458
HGF-Programm 51.11.01 (POF IV, LK 01) Teilchenphysik
Erschienen in Journal of High Energy Physics
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Band 2022
Heft 6
Seiten Art.-Nr. 43
Vorab online veröffentlicht am 08.06.2022
Nachgewiesen in Dimensions
Web of Science
Scopus
arXiv
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