Results 71 to 80 of about 49,673 (241)
Relativistic corrections to the pair Bc-meson production in e+e− annihilation
Nuclear Physics B, 2016 Relativistic corrections to the pair Bc-meson production in e+e−-annihilation are calculated. We investigate a production of pair pseudoscalar, vector and pseudoscalar+vector Bc-mesons in the leading order perturbative quantum chromodynamics and ...
A.A. Karyasov +2 more
doaj +1 more source
European Physical Journal C: Particles and Fields, 2020 In this paper we consider very weakly interacting and ultra light scalar and pseudoscalar dark matter candidates. We show that quantum gravity has important implications for such models and that the masses of the singlet scalar and pseudoscalar fields ...
Xavier Calmet, Folkert Kuipers
doaj +1 more source
Gluonic Correlations in Matter [PDF]
, 2000 We derive the analogue of the QCD low energy theorems for the scalar and pseudoscalar gluonic correlators in nuclear matter. We find that the scalar correlations are depleted while the pseudoscalar correlations are enhanced to leading order in the ...
E. Witten +13 more
core +3 more sources
Asymptotic Behavior of Saxion–Axion System in Stringy Quintessence Model
Fortschritte der Physik, Volume 72, Issue 11, November 2024.Abstract The late time behavior of the slow‐roll parameter in the stringy quintessence model is studied when axion as well as saxion are allowed to move. Even though the potential is independent of the axion at tree level, the axion can move through its coupling to the saxion and the background geometry.
Min‐Seok Seo
wiley +1 more source
Two-Point Correlators of Fermionic Currents in External Magnetic Field
EPJ Web of Conferences, 2017 We study the two-point correlation functions under an influence of the constant homogeneous magnetic field. In addition to the correlators of scalar, pseudoscalar, vector and axial-vector fermionic currents, we calculate the non-diagonal one including ...
Dobrynina Alexandra +3 more
doaj +1 more source
Excited scalar and pseudoscalar mesons in the extended linear sigma model
European Physical Journal C: Particles and Fields, 2017 We present an in-depth study of masses and decays of excited scalar and pseudoscalar $${\bar{q}}q$$ q ¯ q states in the Extended Linear Sigma Model (eLSM). The model also contains ground-state scalar, pseudoscalar, vector and axial-vector mesons.
Denis Parganlija, Francesco Giacosa
doaj +1 more source
Evidence for a new pseudoscalar meson
Physics Letters B, 1981 Abstract Performing a PWA of the π − π − π + system over the −t p/p range 0.2 to 0.4 GeV 2 we find evidence for a J P = 0 − , J G =1 − meson of mass 1342 ± 20 MeV and width 220 ±70 MeV decaying into ϵπ. This state is produced by natural parity exchange with a slope similar to that of elastic scattering.
M. Bonesini +13 more
openaire +3 more sources
Projective duality encodes complementary orientations in geometric algebras
Mathematical Methods in the Applied Sciences, Volume 47, Issue 14, Page 11422-11438, 30 September 2024.Oriented elements are part of geometry, and they come in two complementary types: intrinsic and extrinsic. Those different orientation types manifest themselves by behaving differently under reflection. Projective dualization in geometric algebras can encode them, or conversely, orientation types inform the interpretation of dualization.
Leo Dorst
wiley +1 more source
Biosensing with Oleosin‐Stabilized Liquid Crystal Droplets
Small, Volume 20, Issue 31, August 1, 2024.Oleosins can stabilize nematic liquid crystal droplets for use in biological sensing, while chiral nematic liquid crystals can instead directly be used to sense the presence of oleosins. Abstract Liquid crystals (LCs) are emerging as novel platforms for chemical, physical, and biological sensing.
Lawrence W. Honaker +4 more
wiley +1 more source
D_s (2317) as a four-quark state in QCD sum rules
, 2005 We perform a QCD sum rule study of the open-charmed $D_s (2317)$ as a four-quark state. Using the diquark-antidiquark picture for the four-quark state, we consider four possible interpolating fields for $D_s (2317)$, namely, scalar-scalar, pseudoscalar ...
B. A. Li +6 more
core +1 more source