Results 61 to 70 of about 319,228 (189)
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley +1 more source
Sensitivity to CP $$ \mathcal{CP} $$ -violating effective couplings in the top-Higgs sector
The observed baryon asymmetry of the Universe requires new sources of charge-parity ( CP $$ \mathcal{CP} $$ ) violation beyond those in the Standard Model.
Víctor Miralles +3 more
doaj +1 more source
Is there new particle running in the loop-induced Hγγ and Hgg vertex?
Loop-induced Hgg and Hγγ coupling play an important role in the Higgs production and decay at the LHC. These vertices can be affected by various New Physics contributions, including new particles, anomalous Yukawa couplings, and so on.
Seungwon Baek, Xing-Bo Yuan
doaj +1 more source
Anomalous gauge-boson couplings and the Higgs-boson mass [PDF]
50 pages, 4 figures; version to appear in ...
Nachtmann, O., Nagel, F., Pospischil, M.
openaire +2 more sources
The Higgs sector of the complex minimal supersymmetric standard model [PDF]
Complete one-loop results for the decay widths of neutral Higgs bosons ( h(_a)) into lighter neutral Higgs bosons ( h(_b), h(_c). ) arc presented for the MSSM with complex parameters.
Williams, Karina E, Williams, Karina E.
core
This article demonstrates that assimilating machine‐learning‐derived surface nitrate can improve five‐day phytoplankton forecast substantially within the Met Office operational system for the Northwest European Shelf. We explain the reasons behind this improvement and propose that an online system where machine learning and data assimilation are cycled
Deep S. Banerjee +2 more
wiley +1 more source
The making of novel ecosystems: A process‐based framework for measurement, analysis and application
Abstract Ecological novelty is emerging rapidly due to global change drivers such as climate shifts, species introductions, defaunation, and land‐use transformation. These changes challenge how we assess, understand and manage ecosystems in the Anthropocene.
Matthew R. Kerr +7 more
wiley +1 more source
A minimal set of top-Higgs anomalous couplings [PDF]
We use the equations of motion to simplify the general form of fermion-fermion-Higgs interactions generated by dimension-six gauge-invariant effective operators. After removing redundant operators it is found that the most general H f_i f_j vertex for off-shell fermions f_i, f_j and an off-shell Higgs boson only involves scalar and pseudo-scalar terms,
openaire +3 more sources
Anomalous top-Higgs couplings and top polarisation in single top and Higgs associated production at the LHC [PDF]
In this paper, we put constraints on anomalous $\mathcal{CP}$-violating top-Higgs couplings using the currently available Higgs data and explore the prospect of measuring these couplings at 240 GeV TLEP. We find that the $\mathcal{CP}$-violating phase $ξ$ is currently limited in the range $|ξ|< 0.6π$ at 95\% C.L.
Kobakhidze, Archil, Wu, Lei, Yue, Jason
openaire +2 more sources
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley +1 more source

