Phys Rev Lett
December 2024
High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.
View Article and Find Full Text PDFPhys Rev Lett
October 2024
A search for the exclusive hadronic decays W^{±}→π^{±}γ, W^{±}→K^{±}γ, and W^{±}→ρ^{±}γ is performed using up to 140 fb^{-1} of proton-proton collisions recorded with the ATLAS detector at a center-of-mass energy of sqrt[s]=13 TeV. If observed, these rare processes would provide a unique test bench for the quantum chromodynamics factorization formalism used to calculate cross sections at colliders. Additionally, at future colliders, these decays could offer a new way to measure the W boson mass through fully reconstructed decay products.
View Article and Find Full Text PDFPhys Rev Lett
October 2024
Monkeypox (Mpox) is a virus that originally infected only animals. Caused by the monkeypox virus, this infection presents with symptoms similar to smallpox. Although two years have passed since the 2022 outbreak, new cases continue to emerge monthly.
View Article and Find Full Text PDFBackground: Since Monkeypox (mpox) had an outbreak on 6th May 2022 in 75 countries, it has been declared by the World Health Organization (WHO) that mpox is a public health of international emergency concern (PHEIC). WHO declared mpox as PHEIC again in August 204. Indonesia was also affected by the mpox outbreak with most of the cases coming from vulnerable populations.
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