Results 21 to 30 of about 66,204 (302)

Study of η(1405)/η(1475) in J / ψ → γ K S 0 K S 0 π 0 $$ J/\psi \to \gamma {K}_S^0{K}_S^0{\pi}^0 $$ decay

open access: yesJournal of High Energy Physics, 2023
Using a sample of (10.09 ± 0.04) × 109 J/ψ decays collected with the BESIII detector, partial wave analyses of the decay J / ψ → γ K S 0 K S 0 π 0 $$ J/\psi \to \gamma {K}_S^0{K}_S^0{\pi}^0 $$ are performed within the K S 0 K S 0 π 0 $$ {K}_S^0{K}_S^0 ...
The BESIII collaboration   +575 more
doaj   +1 more source

Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at √s=8 TeV [PDF]

open access: yes, 2014
This work is licensed under a Creative Commons Attribution which allows re-distribution and re-use of a licensed work on the condition that the creator is appropriately credited.A search for new resonances decaying to WW, ZZ, or WZ is presented.
R. Goldouzian   +999 more
core   +4 more sources

Search for sub-eV axion-like resonance states via stimulated quasi-parallel laser collisions with the parameterization including fully asymmetric collisional geometry

open access: yesJournal of High Energy Physics, 2021
We have searched for axion-like resonance states by colliding optical photons in a focused laser field (creation beam) by adding another laser field (inducing beam) for stimulation of the resonance decays, where frequency-converted signal photons can be ...
The SAPPHIRES collaboration   +13 more
doaj   +1 more source

Determination of the strong coupling constant α S(mZ) from measurements of inclusive W ± and Z boson production cross sections in proton-proton collisions at s $$ \sqrt{\mathrm{s}} $$ = 7 and 8 TeV

open access: yesJournal of High Energy Physics, 2020
Twelve measurements of inclusive cross sections of W ± and Z boson production, performed in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, are compared with perturbative quantum chromodynamics calculations at next-to-next- to-leading
The CMS collaboration   +2295 more
doaj   +1 more source

Inclusive Particle Production in Hadronic Decays of the Z Boson at LEP I [PDF]

open access: yes, 1997
Inclusive particle production in hadronic events taken at the Z resonance with LEP~I is reviewed. With approximately 20 million Z decays, the four LEP experiments have studied the fragmentation of partons into identified particles.
Armin Böhrer, Böhrer, A
core   +1 more source

Observation of e + e − → ηψ(2S) at center-of-mass energies from 4.236 to 4.600 GeV

open access: yesJournal of High Energy Physics, 2021
Using a total of 5.25 fb −1 of e + e − collision data with center-of-mass energies from 4.236 to 4.600 GeV, we report the first observation of the process e + e − → ηψ(2S) with a statistical significance of 4.9 standard deviations.
The BESIII collaboration   +517 more
doaj   +1 more source

Probing Planckian physics: Resonant production of particles during inflation and features in the primordial power spectrum [PDF]

open access: yesPhysical Review D, 2000
The phenomenon of resonant production of particles {\it after} inflation has received much attention in the past few years. In a new application of resonant production of particles, we consider the effect of a resonance {\em during} inflation. We show that if the inflaton is coupled to a massive particle, resonant production of the particle during ...
Chung, Daniel J. H.   +3 more
openaire   +2 more sources

Cross section measurements of the processes e + e − → ωπ 0 and ωη at center-of-mass energies between 3.773 and 4.701 GeV

open access: yesJournal of High Energy Physics, 2022
The Born cross sections of the processes e + e − → ωπ 0 and e + e − → ωη are measured at center-of-mass energies between 3.773 and 4.701 GeV using a total integrated luminosity of 22.7 fb −1 collected with the BESIII detector operating at the BEPCII ...
The BESIII collaboration   +547 more
doaj   +1 more source

Measurements of differential Z boson production cross sections in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV

open access: yesJournal of High Energy Physics, 2019
Measurements are presented of the differential cross sections for Z bosons produced in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV and decaying to muons and electrons.
The CMS collaboration   +2313 more
doaj   +1 more source

Observation of e + e − → π 0 π 0 ψ 2(3823)

open access: yesJournal of High Energy Physics, 2023
Using a data sample corresponding to an integrated luminosity of 11.3 fb −1 collected at center-of-mass energies from 4.23 to 4.70 GeV with the BESIII detector, we observe the process e + e − → π 0 π 0 ψ 2(3823) for the first time with a statistical ...
The BESIII collaboration   +576 more
doaj   +1 more source

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