Tootfinder

New Orleans signs: "Parts" edition.
1) Bike Parts & Formal Wear - Basin Street, Treme.
2) Auto Parts, Broad, Broadmoor
3)Spare Parts Express, Krewe of OAK Mid-City Mardi Gras, Carrollton
4)Parts Welcome Here, 7th Ward New Marigny.
Photographed by Infrogmation of New Orleans.
@…

Polynomial-time derivation of optimal k-tree topology from Markov networks
Fereshteh R. Dastjerdi, Liming Cai
https://arxiv.org/abs/2404.05991 https://

Polynomial-time derivation of optimal k-tree topology from Markov networks
Characterization of joint probability distribution for large networks of random variables remains a challenging task in data science. Probabilistic graph approximation with simple topologies has practically been resorted to; typically the tree topology makes joint probability computation much simpler and can be effective for statistical inference on insufficient data. However, to characterize network components where multiple variables cooperate closely to influence others, model topologies bey…

Cepheids as distance indicators and stellar tracers
G. Bono (Dipartimento di Fisica, Universit\`a di Roma Tor Vergata, Roma, Italy), V. F. Braga (INAF-Osservatorio Astronomico di Roma, Monte Porzio Catone, Italy), A. Pietrinferni (INAF-Osservatorio Astronomico d'Abruzzo, Teramo, Italy)
https://arxiv.org/abs/2405.04893…

Cepheids as distance indicators and stellar tracers
We review the phenomenology of classical Cepheids (CCs), Anomalous Cepheids (ACs) and type II Cepheids (TIICs) in the Milky Way (MW) and in the Magellanic Clouds (MCs). We also examine the Hertzsprung progression in different stellar systems by using the shape of I-band light curves (Fourier parameters) and observables based on the difference in magnitude and in phase between the bump and the minimum in luminosity. The distribution of Cepheids in optical and in optical-near infrared (NIR) c…

This https://arxiv.org/abs/2402.18638 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Constraining the hadronic properties of star-forming galaxies above $1\, \rm GeV$ with 15-years Fermi-LAT data
Star-forming and starburst galaxies (SFGs and SBGs) are considered to be powerful emitters of non-thermal gamma-rays and neutrinos. On this regard, the Fermi-LAT collaboration has found a correlation between the gamma-ray and infrared luminosities for a sample of local sources. Yet, the physics behind these non-thermal emissions is still under debate. Using the publicly-available fermitools, we analyse 15.3 years of gamma-ray between 1-1000 GeV data for 70 sources, 56 of which were not previous…

Quantum gravity modifications to the accretion onto a Kerr black hole
Luis A. S\'anchez
https://arxiv.org/abs/2404.05028 https://…

Quantum gravity modifications to the accretion onto a Kerr black hole
In the framework of the Asymptotic Safety scenario for quantum gravity, we analyze quantum gravity modifications to the thermal characteristics of a thin accretion disk spiraling around a renormalization group improved (RGI-) Kerr black hole in the low energy regime. We focused on the quantum effects on the location of the innermost stable circular orbit (ISCO), the energy flux from the disk, the disk temperature, the observed redshifted luminosity, and the accretion efficiency. The deviations …

Lunachicks - “Sugar Luv” EP
Double 7” gatefold (1989)
Original UK pressing on Blast First Records (Import)
Working at an independent record store allowed me to order imports like this one. Pretty sure I heard “Jan Brady” on the radio and immediately wanted to get this disc.
Turns out my favorite track is their cover of “Get Off The Road”. I played the hell out of this on my radio show.
Also got to meet these crazy chicks when they toured with L7 and Fugazi in ‘…

Reconstructing rotation curves with artificial neural networks
Gabriela Garcia-Arroyo, Isidro G\'omez-Vargas, J. Alberto V\'azquez
https://arxiv.org/abs/2404.05833

Reconstructing rotation curves with artificial neural networks
Galactic rotation curves have been served as indispensable tools for determining the distribution of mass within galaxies. Despite several advances in precision observations, some discrepancies still persist between the inferred matter distribution from luminosity and observed rotation velocities, often attributed to the presence of dark matter. Traditional parametric models, while insightful, struggle with the complexity of galaxies with prominent bulges or non-circular motions, but in contras…

Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions
ATLAS Collaboration
https://arxiv.org/abs/2403.02793 https://arxiv.org/pdf/2403.02793
arXiv:2403.02793v1 Announce Type: new
Abstract: Measurements of inclusive, differential cross-sections for the production of events with missing transverse momentum in association with jets in proton-proton collisions at $\sqrt{s}=13$~TeV are presented. The measurements are made with the ATLAS detector using an integrated luminosity of 140~fb$^{-1}$ and include measurements of dijet distributions in a region in which vector-boson fusion processes are enhanced. They are unfolded to correct for detector resolution and efficiency within the fiducial acceptance, and are designed to allow robust comparisons with a wide range of theoretical predictions. A measurement of differential cross sections for the $Z~\to \nu\nu$ process is made. The measurements are generally well-described by Standard Model predictions except for the dijet invariant mass distribution. Auxiliary measurements of the hadronic system recoiling against isolated leptons, and photons, are also made in the same phase space. Ratios between the measured distributions are then derived, to take advantage of cancellations in modelling effects and some of the major systematic uncertainties. These measurements are sensitive to new phenomena, and provide a mechanism to easily set constraints on phenomenological models. To illustrate the robustness of the approach, these ratios are compared with two common Dark Matter models, where the constraints derived from the measurement are comparable to those set by dedicated detector-level searches.

Lunachicks - “Sugar Luv” EP
Double 7” gatefold (1989)
Original UK pressing on Blast First Records (Import)
Working at an independent record store allowed me to order imports like this one. Pretty sure I heard “Jan Brady” on the radio and immediately wanted to get this disc.
Turns out my favorite track is their cover of “Get Off The Road”. I played the hell out of this on my radio show.
Also got to meet these crazy chicks when they toured with L7 and Fugazi in ‘…

Amplitude analysis of the $\Lambda_b^0\to pK^-\gamma$ decay
LHCb collaboration, et al.
https://arxiv.org/abs/2403.03710 https://arxiv…

Amplitude analysis of the $Λ_b^0\to pK^-γ$ decay
The resonant structure of the radiative decay $Λ_b^0\to pK^-γ$ in the region of proton-kaon invariant-mass up to 2.5 GeV$/c^2$ is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13 TeV collected with the LHCb detector, corresponding to a total integrated luminosity of 9 fb$^{-1}$. Results are given in terms of fit and interference fractions between the different components contributing to this final state. Only $Λ$ resonances decaying to $pK^-$ are…