Results 41 to 50 of about 82,911 (161)

Heavy quark polarizations of $e^+e^-\to q \bar q h$ in the general two Higgs doublet model

open access: yes, 2002
The polarizations of the heavy quark ($q=t$ or $b$) in the process $e^+e^- \to q \bar q h$ have been calculated in the general two Higgs doublet model.
C. D. Froggat   +12 more
core   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
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

Top-Yukawa contributions to bbH production at the LHC

open access: yesJournal of High Energy Physics, 2019
We study the production of a Higgs boson in association with bottom quarks b b ¯ H $$ \left(b\overline{b}H\right) $$ in hadronic collisions at the LHC, including the different contributions stemming from terms proportional to the top-quark Yukawa ...
Nicolas Deutschmann   +3 more
doaj   +1 more source

Prospects for observing an additional NMSSM Higgs boson produced in association with a single bottom quark at the LHC

open access: yesResults in Physics, 2021
We study the production of the next-to-lightest CP-even Higgs state, which is not the SM-like Higgs, of the NMSSM in association with a single bottom quark bg→bh2in the ditau decay channel at the LHC. We find that this production channel can be exploited
M.M. Almarashi
doaj   +1 more source

Quark Number Susceptibility with Finite Quark Mass in Holographic QCD

open access: yes, 2011
We study the effect of a finite quark mass on the quark number susceptibility in the framework of holographic QCD. We work in a bottom-up model with a deformed AdS black hole and D3/D7 model to calculate the quark number susceptibility at finite ...
Kim, Kyung-il   +3 more
core   +1 more source

Large methane oxidation across an oxygen gradient in Baltic Sea deep waters

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 1, January 2026.
Abstract Robust estimations of methane (CH4) oxidation in marginal seas remain elusive, making CH4 budgets particularly uncertain. Here, we investigate the CH4 benthic source and bottom layer oxidation across the entire Baltic Sea using concentration and stable isotope (δ13C‐CH4) profiles along oxygen and salinity gradients.
Linnea Henriksson   +8 more
wiley   +1 more source

Definition and Calculation of Bottom Quark Cross-Sections in Deep-inelastic Scattering at HERA and Determination of their Uncertainties

open access: yes, 2003
The uncertainties involved in the calculation of bottom quark cross-sections in deep-inelastic scattering at HERA are studied in different phase space regions.
A.V. Lipatov   +56 more
core   +3 more sources

A Superalgebra Within: Representations of Lightest Standard Model Particles Form a Z25$\mathbb {Z}_2^5$‐Graded Algebra

open access: yesAnnalen der Physik, Volume 537, Issue 12, December 2025.
 A set of particle representations, familiar from the Standard Model, collectively form a superalgebra. Those representations mirroring the behaviour of the Standard Model's gauge bosons, and three generations of fermions, are each included in this algebra, with exception only to those representations involving the top quark.
N. Furey
wiley   +1 more source

Beautiful and charming chromodipole moments

open access: yesJournal of High Energy Physics, 2021
In the context of the Standard Model effective field theory we derive direct and indirect bounds on chromodipole operators involving the bottom and charm quark.
Ulrich Haisch, Gabriël Koole
doaj   +1 more source

Nuclear Physics in the Era of Quantum Computing and Quantum Machine Learning

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 12, December 2025.
The use of QML in the realm of nuclear physics at low energy is almost nonexistent. Three examples of the use of quantum computing and quantum machine in nuclear physics are presented: the determination of the phase/shape in nuclear models, the calculation of the ground state energy, and the identification of particles in nuclear physics experiments ...
José‐Enrique García‐Ramos   +4 more
wiley   +1 more source

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