Aerosol characteristics and particle production in the upper troposphere over the Amazon Basin [PDF]
Airborne observations over the Amazon Basin showed high aerosol particle concentrations in the upper troposphere (UT) between 8 and 15 km altitude, with number densities (normalized to standard temperature and pressure) often exceeding those in the ...
M. O. Andreae +46 more
doaj +1 more source
Suppression laws for multi-particle interference in Sylvester interferometers [PDF]
Quantum interference of correlated particles is a fundamental quantum phenomenon which carries signatures of the statistics properties of the particles, such as bunching or anti-bunching.
Crespi, Andrea
core +2 more sources
Open string QED meson description of the X17 particle and dark matter
As a quark and an antiquark cannot be isolated, the intrinsic motion of a composite q q ¯ $$ q\overline{q} $$ system in its lowest-energy states lies predominantly in 1+1 dimensions, as in an open string with the quark and the antiquark at its two ends ...
Cheuk-Yin Wong
doaj +1 more source
Interaction between dielectric particles enhances the Q-factor
We study behavior of resonant modes with a distance between two identical dielectric cylinders and disks. We reveal two basic scenarios of evolution of resonances with the distance between the cylinders.
E. Bulgakov, K. Pichugin, A. Sadreev
doaj +1 more source
A two-dimensional Weibel instability simulation using the non-extensive distribution function
In this paper, the analysis of Weibel instability for electron–positron plasma is carried out by applying the q non-extensive velocity distribution function.
Amin Esmaeili +3 more
doaj +1 more source
Flavoured axions in the tail of Bq → μ + μ − and B → γ * form factors
We discuss how LHC di-muon data collected to study B q → μμ can be used to constrain light particles with flavour-violating couplings to b-quarks. Focussing on the case of a flavoured QCD axion, a, we compute the decay rates for B q → μμa and the SM ...
Johannes Albrecht +3 more
doaj +1 more source
Extended Y-system for the $AdS_5/CFT_4$ correspondence [PDF]
We study the analytic properties of the $AdS_5/CFT_4$ Y functions. It is shown that the TBA equations, including the dressing factor, can be obtained from the Y-system with some additional information on the square-root discontinuities across semi ...
't Hooft +81 more
core +2 more sources
A machine learning approach to aerosol classification for single-particle mass spectrometry [PDF]
Compositional analysis of atmospheric and laboratory aerosols is often conducted via single-particle mass spectrometry (SPMS), an in situ and real-time analytical technique that produces mass spectra on a single-particle basis.
C. D. Christopoulos +7 more
doaj +1 more source
Particle Swarm Optimization Combined with Q-learning of Experience Sharing Strategy [PDF]
Particle swarm optimization (PSO) has shortcomings such as easy to fall into local optimum, insufficient diversity and low precision. Recently, adopting the strategy of combining the reinforcement learning method like Q-learning to improve the PSO ...
LUO Yixuan, LIU Jianhua, HU Renyuan, ZHANG Dongyang, BU Guannan
doaj +1 more source
Convergence of U-statistics for interacting particle systems [PDF]
The convergence of U-statistics has been intensively studied for estimators based on families of i.i.d. random variables and variants of them. In most cases, the independence assumption is crucial [Lee90, de99].
Del Moral, P. +2 more
core +6 more sources

