Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Masaya Kohda"'
Publikováno v:
Physics Letters B, Vol 795, Iss , Pp 371-378 (2019)
In a general two Higgs doublet model, we study flavor changing neutral Higgs (FCNH) decays into leptons at hadron colliders, pp→ϕ0→τ∓μ±+X, where ϕ0 could be a CP-even scalar (h0, H0) or a CP-odd pseudoscalar (A0). The light Higgs boson h0
Externí odkaz:
https://doaj.org/article/6e5c379129b34e96b8c5101bef988321
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033173 (2022)
Measuring expectation values of observables is an essential ingredient in variational quantum algorithms. A practical obstacle is the necessity of a large number of measurements for statistical convergence to meet requirements of precision, such as c
Externí odkaz:
https://doaj.org/article/04e3742182d34c4195ee61943b1cbc91
Publikováno v:
Physics Letters B, Vol 800, Iss , Pp - (2020)
With no New Physics seen at the LHC, a second Higgs doublet remains attractive and plausible. The ratio RBμ/τ=B(B→μν¯)/B(B→τν¯) is predicted at 0.0045 in both the Standard Model and the two Higgs doublet model type II, but it can differ i
Externí odkaz:
https://doaj.org/article/44441b8f90b5445b95311804c4fc0212
Publikováno v:
Physics Letters B, Vol 786, Iss , Pp 212-216 (2018)
It was shown recently that, in two Higgs doublet models without Z2 symmetry, extra Yukawa couplings such as ρtc, ρtt can fuel enough CP violation for electroweak baryogenesis (EWBG). We revisit an old proposal where a pseudoscalar A0 has mass betwe
Externí odkaz:
https://doaj.org/article/646dc029bbcd439fb87d7e992f181fa5
Publikováno v:
Physics Letters B, Vol 776, Iss C, Pp 379-384 (2018)
The alignment phenomenon, that the 125 GeV h0 boson so resembles the Standard Model Higgs boson, can be understood in a two Higgs doublet model without discrete symmetry. New Yukawa couplings ρtt and ρtc offer new avenues to discover the extra scal
Externí odkaz:
https://doaj.org/article/bd5f238a115341dabe034e961178d4a5
Publikováno v:
Physics Letters B, Vol 798, Iss , Pp - (2019)
Multi-top quark production is a staple program at the LHC. Single-top and tt¯ productions are studied extensively, while current efforts are zooming in on four-top search, where the Standard Model (SM) cross section is at O(10) fb. In contrast, only
Externí odkaz:
https://doaj.org/article/e371e88119b0445bb1fb0a57a46e8c04
Publikováno v:
Physics Letters B, Vol 751, Iss C, Pp 135-142 (2015)
A general two Higgs doublet model (2HDM) is adopted to study the signature of flavor changing neutral Higgs (FCNH) decay ϕ0→tc¯+t¯c, where ϕ0 could be a CP-even scalar (H0) or a CP-odd pseudoscalar (A0). Measurement of the light 125 GeV neutral
Externí odkaz:
https://doaj.org/article/287262507adc4d76bf4fca1a57724d4a
Publikováno v:
Physics Letters B, Vol 751, Iss C, Pp 458-463 (2015)
The Bs→μ+μ− mode has finally been observed, albeit at rate 1.2σ below Standard Model (SM) value, while the rarer Bd0→μ+μ− decay has central value close to 4 times SM expectation but with only 2.2σ significance. The measurement of CP vio
Externí odkaz:
https://doaj.org/article/f3da1ccc8578419d827cc426ce3df954
Autor:
Wei-Shu Hou, Masaya Kohda
Publikováno v:
Advances in High Energy Physics, Vol 2013 (2013)
Electroweak baryogenesis is an attractive scenario for explaining the baryon asymmetry of the universe. However, it does not work within the standard model due to two reasons: (1) the strength of CP violation from the Kobayashi-Maskawa mechanism with
Externí odkaz:
https://doaj.org/article/0dbaa59cf8a34325b9e6e5cb5261d69c
Measuring expectation values of observables is an essential ingredient in variational quantum algorithms. A practical obstacle is the necessity of a large number of measurements for statistical convergence to meet requirements of precision, such as c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0197c19419a48cd99ebffb18e6ae78c4
