Results 31 to 40 of about 3,013,991 (279)

A search for the decays of stopped long-lived particles at s $$ \sqrt{\mathrm{s}} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2021
A search for long-lived particles, which have come to rest within the ATLAS detector, is presented. The subsequent decays of these particles can produce high-momentum jets, resulting in large out-of-time energy deposits in the ATLAS calorimeters.
The ATLAS collaboration   +2888 more
doaj   +1 more source

Charged and identified particles in the hadronic decay of W bosons and in e+ e- ---> q anti-q from 130-GeV to 200-GeV [PDF]

open access: yes, 2000
Inclusive distributions of charged particles in hadronic W decays are experimentally investigated using the statistics collected by the DELPHI experiment at LEP during 1997, 1998 and 1999, at centre-of-mass energies from 183 to around 200 GeV.
Kluit, P   +999 more
core   +1 more source

A comparison of ice water content measurement techniques on the FAAM BAe-146 aircraft [PDF]

open access: yesAtmospheric Measurement Techniques, 2014
This paper presents a comparison of ice water content (qi) data from a variety of measurement techniques on the Facility for Airborne Atmospheric Measurements (FAAM) BAe-146 research aircraft.
S. J. Abel   +3 more
doaj   +1 more source

Particle Swarm Optimization Combined with Q-learning of Experience Sharing Strategy [PDF]

open access: yesJisuanji kexue yu tansuo, 2022
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

Tableaux combinatorics for two-species PASEP probabilities [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
The goal of this paper is to provide a combinatorial expression for the steady state probabilities of the twospecies PASEP. In this model, there are two species of particles, one “heavy” and one “light”, on a one-dimensional finite lattice with open ...
Olya Mandelshtam
doaj   +1 more source

q-Differential equations for q-classical polynomials and q-Jacobi-Stirling numbers [PDF]

open access: yes, 2016
We introduce, characterise and provide a combinatorial interpretation for the so-called q-Jacobi–Stirling numbers. This study is motivated by their key role in the (reciprocal) expansion of any power of a second order q-differential operator having the
Zeng, Jiang   +5 more
core   +1 more source

Focus, Q-Particles and prosodic inversion

open access: yesProceedings of the Linguistic Society of America
This paper examines a second-position focus clitic in Kalaallisut (Inuit, Greenland) and argues that it provides support for Cable’s (2010) theory of Q-particles. Moreover, we demonstrate that anti-pied-piping, in the sense of Branan and Erlewine (2023), extends to possessive structures, a configuration not discussed in their work.
Line Mikkelsen   +2 more
openaire   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Study of 14N(γ,np)3α Reaction for Eγ up to 150 MeV

open access: yesEast European Journal of Physics, 2022
The reaction 14N(g,np)3a induced by bremsstrahlung photons of endpoint energy Egmax = 150 MeV has been investigated using diffusion chamber, which is placed into the magnetic field.
Serhii Afanasiev
doaj   +1 more source

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