Results 11 to 20 of about 118,008 (216)

The general Two-Higgs Doublet Model in a gauge-invariant form

Journal of High Energy Physics, 2022
In the general Two-Higgs Doublet Model it has been shown that the Higgs potential can be expressed in terms of gauge-independent quantities that transform covariantly under unitary mixing of the doublets.
L. Sartore, M. Maniatis, I. Schienbein, B. Herrmann   +3 more
doaj   +1 more source

Exploring wrong sign scenarios in the Yukawa-Aligned 2HDM

Journal of High Energy Physics, 2023
We discuss scenarios with wrong-sign (WS) Yukawa couplings for the discovered Higgs boson in the Yukawa-aligned two Higgs doublet model. In the WS scenario, Yukawa couplings for down-type quarks and/or charged leptons have an opposite sign as compared to
Shinya Kanemura, Tanmoy Mondal, Kei Yagyu   +2 more
doaj   +1 more source

Approximate Hermitian-Yang-Mills structures and semistability for Higgs bundles. II: Higgs sheaves and admissible structures [PDF]

, 2007
We study the basic properties of Higgs sheaves over compact K\"ahler manifolds and we establish some results concerning the notion of semistability; in particular, we show that any extension of semistable Higgs sheaves with equal slopes is semistable ...
Al Dehni, Fadi, Flores García, Enrique, Maldener, Iris, Mirus, Oliver, Moslavac, Suncana, Nicolaisen, Kerstin, Pernil, Rafael, Schleiff, Enrico   +7 more
core   +4 more sources

The flavourful present and future of 2HDMs at the collider energy frontier

Journal of High Energy Physics, 2022
We study the intersection of flavour and collider physics for Two-Higgs-Doublet models of Type I and II. Drawing from the flavour precision-LHC exotics search complementarity, we also provide a projection of the future sensitivity that can be achieved in
Oliver Atkinson, Matthew Black, Christoph Englert, Alexander Lenz, Aleksey Rusov, James Wynne   +5 more
doaj   +1 more source

Unitarity bounds on extensions of Higgs sector

Journal of High Energy Physics, 2023
It is widely believed that extensions of the minimal Higgs sector is one of the promising directions for resolving many puzzles beyond the Standard Model (SM).
Bo-Qiang Lu, Da Huang
doaj   +1 more source

Sphalerons in Two Higgs Doublet Theories [PDF]

, 2001
We undertake a comprehensive investigation of the properties of the sphaleron in electroweak theories with two Higgs doublets. We do this in as model-independent a way as possible: by exploring the physical parameter space described by the masses and ...
A. D. Sakharov, A. G. Cohen, A. I. Bochkarev, A. Riotto, B. de Carlos, B. Kastening, B. Kleihaus, B. Kleihaus, B. Ratra, C. Bachas, D. Diakonov, F. R. Klinkhamer, F. R. Klinkhamer, G. D. Moore, G. Nolte, G. ’t Hooft, J. Baacke, J. Baacke, J. Burzlaff, J. Grant, J. Kunz, J. M. Cline, J. M. Cline, J. M. Moreno, Jackie Grant, K. Kajantie, K. Kajantie, L. Carson, L. Carson, L. G. Yaffe, M. Carena, M. Carena, M. E. James, M. E. Shaposhnikov, M. E. Shaposhnikov, M. Laine, M. Trodden, Mark Hindmarsh, P. Arnold, P. Huet, P. M. Saffin, R. F. Dashen, V. A. Kuzmin, V. A. Rubakov, V. Soni, Y. Brihaye   +45 more
core   +2 more sources

Determining the CP properties of the Higgs boson [PDF]

, 2007
The search and the probe of the fundamental properties of Higgs boson(s) and, in particular, the determination of their charge conjugation and parity (CP) quantum numbers, is one of the main tasks of future high-energy colliders.
A. Djouadi, A. H. Hoang, M. M. Mühlleitner, P. S. Bhupal Dev, R. M. Godbole, S. D. Rindani   +5 more
core   +3 more sources

BSM patterns in scalar-sector coupling modifiers

Journal of High Energy Physics, 2023
We consider what multiple Higgs interactions may yet reveal about the scalar sector. We estimate the sensitivity of a Feynman topology-templated analysis of weak boson fusion Higgs pair production at present and future colliders — where the signal is a ...
Christoph Englert, Wrishik Naskar, Dave Sutherland   +2 more
doaj   +1 more source

The CP-conserving two-Higgs-doublet model: the approach to the decoupling limit [PDF]

, 2002
A CP-even neutral Higgs boson with Standard-Model-like couplings may be the lightest scalar of a two-Higgs-doublet model. We study the decoupling limit of the most general CP-conserving two-Higgs-doublet model, where the mass of the lightest Higgs scalar
A. Bartl, A. Djouadi, A. Djouadi, A. Dobado, A. G. Akeroyd, A. Sirlin, B. W. Lee, C. H. Llewellyn Smith, C. Lin, C. P. Burgess, C. S. Huang, D. Atwood, D. Chang, D. M. Pierce, E. A. Paschos, E. Farhi, E. Witten, F. Boudjema, F. J. Botella, H. A. Weldon, H. E. Haber, H. E. Haber, H. E. Haber, H. P. Nilles, Howard E. Haber, I. Antoniadis, I. F. Ginzburg, I. F. Ginzburg, J. A. Coarasa, J. F. Gunion, J. F. Gunion, J. F. Gunion, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. Velhinho, John F. Gunion, K. Harada, K. Inoue, K. Inoue, K. Inoue, K. S. Babu, K. S. Babu, L. Brucher, L. Girardello, L. J. Hall, L. J. Hall, L. Lavoura, L. Randall, L. Susskind, M. Carena, M. Carena, M. Carena, M. Luscher, N. Arkani-Hamed, N. G. Deshpande, P. Chankowski, P. Ciafaloni, R. A. Diaz, R. A. Jiménez, R. Flores, R. Hempfling, R. K. Kaul, R. K. Kaul, R. K. Kaul, R. Santos, S. Dimopoulos, S. Heinemeyer, S. Kanemura, S. L. Glashow, T. Appelquist, T. D. Lee, V. A. Rubakov, W. S. Hou   +74 more
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Higgs properties and fourth generation leptons

Physical Review D, 2011
It is possible that there are additional vector-like generations where the quarks have mass terms that do not originate from weak symmetry breaking, but the leptons only get mass through weak symmetry breaking. We discuss the impact that the new leptons have on Higgs boson decay branching ratios and on the range of allowed Higgs masses in such a model (
Ishiwata, Koji, Wise, Mark B.
openaire   +4 more sources