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Sökning: onr:"swepub:oai:DiVA.org:uu-481442" > Slight excess at 13...
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03241naa a2200373 4500 | |
| 001 | oai:DiVA.org:uu-481442 | |
| 003 | SwePub | |
| 008 | 220810s2022 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4814422 URI |
| 024 | 7 | a https://doi.org/10.1088/1361-6471/ac77a62 DOI |
| 040 | a (SwePub)uu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Akeroyd, A. G.u Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.4 aut |
| 245 | 1 0 | a Slight excess at 130 GeV in search for a charged Higgs boson decaying to a charm quark and a bottom quark at the Large Hadron Collider |
| 264 | c 2022-06-30 | |
| 264 | 1 | b IOP Publishing,c 2022 |
| 338 | a electronic2 rdacarrier | |
| 520 | a Searches for a charged Higgs boson (H-+/-) decaying to a charm quark and a bottom quark (H +/- -> cb) have been carried out at the Large Hadron Collider (LHC) in the decay of top quarks (t -> H(+/-)b). In a recent search by the ATLAS collaboration (with all run II data, 139 fb(-1)) a local excess of around 3 sigma has been observed, which is best fitted by a charged Higgs boson with a mass (m(H)+/-) of around 130 GeV and a product of branching ratios (BRs) given by BR(t -> H(+/-)b) x BR(H-+/- -> cb) = 0.16% +/- 0.06%. In the context of two-Higgs-doublet models (2HDM) with independent Yukawa couplings for H-+/- we present the parameter space for which this excess (assuming it to be genuine) can be accommodated, taking into account the limits from LHC searches for H-+/- -> cs and H-+/- -> tau nu at m(H)+/- = 130 GeV and the constraint from b -> s gamma. It is then shown that such an excess cannot be explained in 2HDMs with natural flavour conservation, but can be accommodated in the flipped three-Higgs-doublet model (3HDM) and in the aligned 2HDM (A2HDM). Upcoming searches with 139 fb(-1) in the channels H-+/- -> cb (CMS), H-+/- -> cs (ATLAS/CMS) and H-+/- -> tau nu (ATLAS/CMS) will determine if the excess is the first sign of an H-+/- with m(H)+/- = 130 GeV. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Subatomär fysik0 (SwePub)103012 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Subatomic Physics0 (SwePub)103012 hsv//eng |
| 653 | a charged Higgs boson | |
| 653 | a Large Hadron Collider | |
| 653 | a top quark decay | |
| 700 | 1 | a Moretti, Stefanou Uppsala universitet,Högenergifysik,Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England4 aut0 (Swepub:uu)stemo643 |
| 700 | 1 | a Song, Muyuanu Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.;Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.4 aut |
| 710 | 2 | a Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.b Högenergifysik4 org |
| 773 | 0 | t Journal of Physics Gd : IOP Publishingg 49:8q 49:8x 0954-3899x 1361-6471 |
| 856 | 4 | u https://doi.org/10.1088/1361-6471/ac77a6y Fulltext |
| 856 | 4 | u https://uu.diva-portal.org/smash/get/diva2:1686602/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-481442 |
| 856 | 4 8 | u https://doi.org/10.1088/1361-6471/ac77a6 |
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