Results 31 to 40 of about 1,110 (184)

Pseudoscalar meson radial excitations [PDF]

open access: yesPhysical Review C, 2004
5 pages, 3 ...
Hoell, A., Krassnigg, A., Roberts, C. D.
openaire   +2 more sources

The Isgur-Wise function: A lattice determination from pseudoscalar → pseudoscalar form factors [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1994
Form factors for pseudoscalar --> pseudoscalar decays of heavy-light mesons are found in quenched lattice QCD with heavy-quark masses in the range of approximately 1-2 GeV. The Isgur-Wise function, $ξ(ω)$, is extracted from these form factors. Results are in good agreement with $ξ(ω)$ derived from CLEO measurements for B --> D*.
UKQCD Collaboration, Simone, James N.
openaire   +2 more sources

Quantum Geometric Engineering of Dual Hall Effects in 2D Antiferromagnetic Bilayers via Interlayer Magnetic Coupling. [PDF]

open access: yesAdv Sci (Weinh)
Precise tuning of interlayer magnetic coupling in two‐dimensional bilayers enables control over altermagnetic and PT‐symmetric antiferromagnetic phases. This dual‐phase platform yields two intrinsic Hall responses: a Berry curvature–driven linear anomalous Hall effect and a quantum metric–induced second‐order nonlinear anomalous Hall effect ...
Sun Z   +5 more
europepmc   +2 more sources

PSEUDOSCALAR MESONS IN NUCLEAR MEDIUM [PDF]

open access: yesNuclear Many-Body and Medium Effects in Nuclear Interactions and Reactions, 2003
Invited talk at the Workshop "MEDIUM02", Kyushu, Oct.25 - 26 ...
openaire   +2 more sources

Nonminimally coupled pseudoscalar inflaton [PDF]

open access: yesPhysical Review D, 2018
We consider a scenario in which the inflaton $ϕ$ is a pseudoscalar field non-minimally coupled to gravity through a term of the form ${\cal X} R ϕ^2$. The pseudoscalar is also coupled to a $U(1)$ gauge field (or an ensemble of ${\cal N}$ gauge fields) through an axial coupling of the form $ϕF \tilde{F}$. After M. M. Anber and L. Sorbo, Phys. Rev. D 81,
Beltrán Almeida, Juan P.   +1 more
openaire   +2 more sources

Magneto-optic effects of the cosmic microwave background

open access: yesNuclear Physics B, 2018
Generation of magneto-optic effects by the interaction of the CMB with cosmic magnetic fields is studied. Effects which generate polarization such as the Cotton–Mouton effect, vacuum polarization and photon–pseudoscalar mixing in external magnetic field ...
Damian Ejlli
doaj   +1 more source

Vacuum pseudoscalar susceptibility [PDF]

open access: yesPhysical Review C, 2010
We derive a novel model-independent result for the pion susceptibility in QCD via the isovector-pseudoscalar vacuum polarisation. In the neighbourhood of the chiral-limit, the pion susceptibility can be expressed as a sum of two independent terms. The first expresses the pion-pole contribution.
Chang, Lei   +5 more
openaire   +2 more sources

Search for decays of the Higgs boson into pair-produced pseudoscalar particles decaying into using collisions at TeV with the ATLAS detector

open access: yesNew Journal of Physics
A search for a pair of low-mass pseudoscalars $a$ that promptly decay into $\tau$ -leptons is presented using 140 fb $ ^{-1}$ of proton–proton collision data at $13$ TeV centre-of-mass energy recorded with the ATLAS detector at the Large Hadron Collider.
The ATLAS Collaboration
doaj   +1 more source

Decay of charmonium states into a scalar and a pseudoscalar glueball

open access: yesEPJ Web of Conferences, 2016
In the framework of a chiral symmetric model, we expand a U(4)R × U(4)L symmetric linear sigma model with (axial-)vector mesons by including a dilaton field, a scalar glueball, and the pseudoscalar glueball.
Eshraim Walaa I.
doaj   +1 more source

The a0(980) in the single Cabibbo-suppressed process Λc → π0ηp

open access: yesPhysics Letters B, 2023
In this work, we have investigated the Cabibbo-suppressed process Λc→π0ηp, by taking into account the intermediate scalar state a0(980), which could be dynamically generated from the S-wave pseudoscalar-pseudoscalar interaction within the chiral unitary ...
Xue-Chao Feng   +4 more
doaj   +1 more source

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