Tootfinder

Measurement of Downward-going Milli-charged particles beyond GZK cutoff at the Pierre Auger Observatory
Ye Xu
https://arxiv.org/abs/2506.07395 https://

Measurement of Downward-going Milli-charged particles beyond GZK cutoff at the Pierre Auger Observatory
It is assumed that superheavy dark matter particles (SHDM, $ϕ$) with $\mathcal{O}$(ZeV) mass may decay to relativistic milli-charged particles (MCPs, $χ$) via a channel $ϕ\toχ\barχ$ or $γχ\barχ$. The downward-going MCPs passing through the atmosphere can be measured by the Pierre Auger observatory (Auger). The massless hidden photon model is taken for MCPs to interact with nuclei, so that we evaluated the numbers and fluxes of expected MCPs at Auger assuming 14 years of Auger data. The …

Inverse Source Problems for the Time-Fractional Evolution Equation
Rahmonov Askar Ahmadovich
https://arxiv.org/abs/2508.06209 https://arxiv.org/pdf/2508.06…

Inverse Source Problems for the Time-Fractional Evolution Equation
In this paper, we investigate the direct and linear inverse problems of identifying time-dependent and time-independent source terms in a time-fractional diffusion-wave equation, using measured data at an interior point of the time interval. We first establish the existence, uniqueness, and regularity of the solution to the direct problem by employing the spectral method. Then, based on the properties of the direct problem, we study two inverse problems: one involving the recovery of a time-ind…

Echo mapping of the black hole accretion flow in NGC 7469
Raj Prince, Juan V. Hern\'andez Santisteban, Keith Horne, J. Gelbord, Ian McHardy, R. Edelson, C. A. Onken, F. R. Donnan, M. Vestergaard, S. Kaspi, H. Winkler, E. M. Cackett, H. Landt, A. J. Barth, T. Treu, S. Valenti, P. Lira, D. Chelouche, E. Romero Colmenero, M. R. Goad, D. H. Gonzalez-Buitrago, E. Kara, C. Villforth

Echo mapping of the black hole accretion flow in NGC 7469
Reverberation mapping (RM) can measure black hole accretion disc sizes and radial structure through observed time lags that should increase with wavelength as $τ\proptoλ^{4/3}$. Our 250-day RM campaign on NGC 7469 combines sub-day cadence 7-band photometry from the Las Cumbres Observatory robotic telescopes and weekly X-ray and UVOT data from Swift. By fitting these light curves, we measure the spectral energy distribution of the variable accretion disc and inter-band lags of just 1.5 days ac…

Revealing the Dominance of the Orbital Hall Effect over Spin in Transition Metal Heterostructures
J. L. Costa, E. Santos, J. B. S. Mendes, A. Azevedo
https://arxiv.org/abs/2506.08425

Revealing the Dominance of the Orbital Hall Effect over Spin in Transition Metal Heterostructures
We study inverse spin and orbital Hall effects in 19 transition metals using spin-pumping driven by ferromagnetic resonance. Spin-to-charge conversion was measured in YIG/X(5), while orbital-to-charge conversion was probed in YIG/Pt(2)/X(5) heterostructures. Here, X represents the different transition metals. Surprisingly, the orbital contribution overwhelmingly dominates over the spin response, clarifying the challenge of disentangling these effects. Our results largely agree with first-princi…

Apollo Global agrees to acquire a majority stake in Stream Data Centers, which builds, leases, and operates data center campuses, in its first such acquisition (Laura Benitez/Bloomberg)
https://www.bloomberg.com/news/articles/202…

@… I kind of agree. I don’t like that you have to have software that knows who you are to use the web (or a device that does, on the side). But I also don’t see any feasible alternative.
Shared passwords (which I believe are still the majority of them) are terrible. I think I am slightly on the side of DRM.

Low-mass vector-meson production at forward rapidity in $p$$ $$p$ and Au$ $Au collisions at $\sqrt{s_{_{NN}}}=200$~GeV
Collaboration, Abdulameer, Acharya, Adare, Aidala, Ajitanand, Akiba, Alfred, Anderson, Andrieux, Antsupov, Apadula, Asano, Azmoun, Babintsev, Bai, Bandara, Bannier, Bannikov, Barish, Bathe, Bazilevsky, Beaumier, Beckman, Belmont, Berdnikov, Berdnikov, Bichon, Blankenship, Blau, Bok, Borisov, Boyle, Brooks, Bryslawskyj, Bumazhnov, Campbell, Cervantes, Chaitanya, Chen, C…

Low-mass vector-meson production at forward rapidity in $p$$+$$p$ and Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$~GeV
The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low-mass vector-meson ($ω+ρ$ and $ϕ$) production through the dimuon decay channel at forward rapidity $(1.2<|\mbox{y}|<2.2)$ in $p$$+$$p$ and Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$~GeV. The low-mass vector-meson yield and nuclear-modification factor were measured as a function of the average number of participating nucleons, $\langle N_{\rm part}\rangle$, and the transverse momentum $p_T$. These results…

Replaced article(s) found for cs.DL. https://arxiv.org/list/cs.DL/new
[1/1]:
- Arab Spring's Impact on Science through the Lens of Scholarly Attention, Funding, and Migration
Yasaman Asgari, Hongyu Zhou, Ozgur Kadir Ozer, Rezvaneh Rezapour, Mary Ellen Sloane, Alexandre Bovet

Energy dependence of isomeric ratios for alpha-particle-induced reactions on natural platinum up to 50 MeV studied by simultaneous decay curve analysis
Naohiko Otuka, Masayuki Aikawa, S\'andor Tak\'acs, Damdinsuren Gantumur, Shuichiro Ebata, Lkhagvasuren Bold, Akihiro Nambu, Hiromitsu Haba
https://arxiv.org/abs/2507.0321…

Energy dependence of isomeric ratios for alpha-particle-induced reactions on natural platinum up to 50 MeV studied by simultaneous decay curve analysis
The isomeric ratios and cross sections were measured up to 50 MeV for production of $^{198m,g}$Au, $^{197m,g}$Hg, $^{195m,g}$Hg and other Hg, Au and Pt radionuclides in irradiation of natural platinum by alpha-particles using the stacked foil activation technique and offline gamma-ray spectrometry. The simultaneous decay curve analysis was applied to the emission rates of more than 40 gamma lines to directly derive the independent cross sections of all products without determining the cumulativ…

Blackstone agrees to acquire a majority stake in NetBrain, valuing the Burlington, Massachusetts-based network operations and automation company at $750M (Ryan Gould/Bloomberg)
https://www.bloomberg.com/news/articles/2025-07-…