Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Yong-Hui Lin"'
Publikováno v:
Physics Letters B, Vol 858, Iss , Pp 139023- (2024)
We investigate the feasibility of measuring the proton charge radius through dimuon photoproduction off a proton target. Our findings indicate that the Bethe-Heitler mechanism, which dominates at small momentum transfers, allows for an extraction of
Externí odkaz:
https://doaj.org/article/5cbefc72135d46cb8f4f8d35dedd50a0
Publikováno v:
Physics Letters B, Vol 856, Iss , Pp 138887- (2024)
We propose a novel method for measuring the charge radii of charged stable hadrons, with which the first measurement of the charge radii of the Σ+ and the Ξ− is foreseen. The method explores the facts that the Dalitz decay ψ(2S)→YY¯e+e− con
Externí odkaz:
https://doaj.org/article/14f7d7345eb94e2585d77492d9f6a01d
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 1, Pp 1-10 (2023)
Abstract Starting from an effective Lagrangian with heavy quark spin symmetry embedded, the coupled-channel dynamics of the doubly charmed systems $$D^{(*)} \Sigma _c^{(*)}$$ D ( ∗ ) Σ c ( ∗ ) is investigated. The potential underlying our invest
Externí odkaz:
https://doaj.org/article/72c0e519f44b43d3a8090c3d4445dd79
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 12, Pp 1-7 (2022)
Abstract The electromagnetic form factors of the $$\Lambda $$ Λ hyperon in the time-like region are determined precisely through a dispersion-theoretical analysis of the world data for the cross section of the annihilation process $$e^+e^-\rightarro
Externí odkaz:
https://doaj.org/article/393eff3b2378480886ec943ed1a68c83
Publikováno v:
Physics Letters B, Vol 835, Iss , Pp 137575- (2022)
We present a high-precision calculation of the recoil–finite-size correction to the hyperfine splitting (HFS) in muonic and electronic hydrogen based on nucleon electromagnetic form factors obtained from dispersion theory. This will help guide the
Externí odkaz:
https://doaj.org/article/9c13d2b5cc5d4bb2b7ff9ea352a64dc5
Publikováno v:
Physics Letters B, Vol 827, Iss , Pp 136981- (2022)
We predict the differential cross sections for e−p and e+p elastic scattering in the PRad-II energy region. The prediction is based on form factors obtained in our previous high-precision analysis of space- and time-like data from dispersion theory
Externí odkaz:
https://doaj.org/article/645d50998e6d416095efcfa78554a4dc
Publikováno v:
Physics Letters B, Vol 816, Iss , Pp 136254- (2021)
Using dispersion theory with an improved description of the two-pion continuum based on the precise Roy-Steiner analysis of pion-nucleon scattering, we analyze recent data from electron-proton scattering. This allows for a high-precision determinatio
Externí odkaz:
https://doaj.org/article/7f3686fc1d37411a9d16889622c57625
The internal structure of the charm-strange mesons $D_{s0}^*(2317)$ and $D_{s1}(2460)$ are subject of intensive studies. Their widths are small because they decay dominantly through isospin-breaking hadronic channels $D_{s0}^*(2317)^+\to D_s^+\pi^0$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24ee9f04e49375ec5806c6e1e80278a1
http://arxiv.org/abs/2303.18225
http://arxiv.org/abs/2303.18225
Publikováno v:
INSPIRE-HEP
Using dispersion theory, the electromagnetic Sigma-to-Lambda transition form factors are expressed as the product of the pion electromagnetic form factor and the $\Sigma\bar{\Lambda}\to\pi\pi$ scattering amplitudes with the latter estimated from SU(3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a98bc006dd3ce777a8cb998ead98a65
https://doi.org/10.1140/epja/s10050-023-00973-1
https://doi.org/10.1140/epja/s10050-023-00973-1
Publikováno v:
Science China Physics, Mechanics & Astronomy. 65
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::569c64c5335ebfce5cb4cff734107f68
https://doi.org/10.1007/s11433-022-1887-5
https://doi.org/10.1007/s11433-022-1887-5