Results 21 to 30 of about 3,447 (214)

Application of Nomarski interference system in supersonic gas-jet target diagnosis

open access: yesAIP Advances, 2021
Supersonic gas-jet target performs an important role in laser wakefield acceleration, and its density diagnosis is a significant part of target characteristic study.
Qiushi Liu   +11 more
doaj   +1 more source

Particle Polarization in High Energy Physics [PDF]

open access: yes, 2023
This open-access book addresses the following questions: how does the polarization of a particle, i.e., the angular momentum state in which it is produced, manifest itself in nature? What are the concepts and tools needed to perform rigorous measurements providing complete and unambiguous physical information?
Faccioli, Pietro, Lourenço, Carlos
openaire   +2 more sources

Band Offset Measurements in Atomic-Layer-Deposited Al2O3/Zn0.8Al0.2O Heterojunction Studied by X-ray Photoelectron Spectroscopy

open access: yesNanoscale Research Letters, 2017
Pure aluminum oxide (Al2O3) and zinc aluminum oxide (Zn x Al1-x O) thin films were deposited by atomic layer deposition (ALD). The microstructure and optical band gaps (E g ) of the Zn x Al1-x O (0.2 ≤ x ≤ 1) films were studied by X-ray diffractometer ...
Baojun Yan   +5 more
doaj   +1 more source

Observation of X(2370) and search for X(2120) in $$J/\psi \rightarrow \gamma K{\bar{K}} \eta '$$ J/ψ→γKK¯η′

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Using a sample of $$1.31\times 10^{9} ~J/\psi $$ 1.31×109J/ψ events collected with the BESIII detector, we perform a study of $$J/\psi \rightarrow \gamma K{\bar{K}}\eta '$$ J/ψ→γKK¯η′ . X(2370) is observed in the $$K{\bar{K}}\eta '$$ KK¯η′ invariant-mass
M. Ablikim   +482 more
doaj   +1 more source

Higher-spin particles at high-energy colliders

open access: yesJournal of High Energy Physics, 2021
Using an effective field theory approach for higher-spin fields, we derive the interactions of colour singlet and electrically neutral particles with a spin higher than unity, concentrating on the spin-3/2, spin-2, spin-5/2 and spin-3 cases.
Juan C. Criado   +4 more
doaj   +1 more source

Observation of the decay ψ(3686) → Σ − Σ ¯ + $$ {\Sigma}^{-}{\overline{\Sigma}}^{+} $$ and measurement of its angular distribution

open access: yesJournal of High Energy Physics, 2022
Using (448.1 ± 2.9) × 106 ψ(3686) events collected with the BESIII detector at the BEPCII collider, the decay ψ(3686) → Σ − Σ ¯ + $$ {\Sigma}^{-}{\overline{\Sigma}}^{+} $$ is observed for the first time with a branching fraction of (2.82 ± 0.04stat.
The BESIII collaboration   +576 more
doaj   +1 more source

Characteristics of the high-frequency humps in the black hole X-ray binary Swift J1727.8–1613

open access: yesAstronomy & Astrophysics
We present a detailed timing analysis of the two high-frequency humps observed in the power density spectrum of Swift J1727.8–1613 up to 100 keV, using data from the Hard X-ray Modulation Telescope (Insight-HXMT).
Li Ze-Xi   +15 more
doaj   +1 more source

Cross section measurements of the e + e − → D *+ D *− and e + e − → D *+ D − processes at center-of-mass energies from 4.085 to 4.600 GeV

open access: yesJournal of High Energy Physics, 2022
The Born cross sections of the e + e − → D *+ D *− and e + e − → D *+ D − processes are measured using e + e − collision data collected with the BESIII experiment at center-of-mass energies from 4.085 to 4.600 GeV, corresponding to an integrated ...
The BESIII collaboration   +561 more
doaj   +1 more source

Amplitude analysis and branching fraction measurement of the decay D s + $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → K+ π + π − π 0

open access: yesJournal of High Energy Physics, 2022
The singly Cabibbo-suppressed decay D s + $$ {D}_s^{+} $$ → K + π + π − π 0 is observed by using a data set corresponding to an integrated luminosity of 6.32 fb −1 recorded by the BESIII detector at the centre-of-mass energies between 4.178 and 4.226 GeV.
The BESIII collaboration   +568 more
doaj   +1 more source

GECAM discovery of a peculiar magnetar X-ray burst (MXB 221120) from SGR J1935+2154 associated with a fast radio burst

open access: yesAstronomy & Astrophysics
Fast radio bursts (FRBs) are enigmatic cosmic transients of millisecond duration observed in the radio band. The identification of FRB-associated magnetar X-ray bursts (MXBs) from the galactic magnetar SGR J1935+2154 suggests that at least a fraction of ...
Tan Wen-Jun   +52 more
doaj   +1 more source

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