Tootfinder

A Grassroots Network and Community Roadmap for Interconnected Autonomous Science Laboratories for Accelerated Discovery
Rafael Ferreira da Silva, Milad Abolhasani, Dionysios A. Antonopoulos, Laura Biven, Ryan Coffee, Ian T. Foster, Leslie Hamilton, Shantenu Jha, Theresa Mayer, Benjamin Mintz, Robert G. Moore, Salahudin Nimer, Noah Paulson, Woong Shin, Frederic Suter, Mitra Taheri, Michela Taufer, Newell R. Washburn

A Grassroots Network and Community Roadmap for Interconnected Autonomous Science Laboratories for Accelerated Discovery
Scientific discovery is being revolutionized by AI and autonomous systems, yet current autonomous laboratories remain isolated islands unable to collaborate across institutions. We present the Autonomous Interconnected Science Lab Ecosystem (AISLE), a grassroots network transforming fragmented capabilities into a unified system that shorten the path from ideation to innovation to impact and accelerates discovery from decades to months. AISLE addresses five critical dimensions: (1) cross-institu…

Observation of laser plasma accelerated electrons with transverse momentum spread below the thermal level
T. L. Steyn, A. Panchal, O. Vasilovici, S. Sch\"obel, P. Ufer, F. M. Herrmann, Y. -Y. Chang, I. Moulanier, M. Masckala, O. Khomyshyn, C. Ballage, M. LaBerge, F. Massimo, S. Dobosz Dufr\'enoy, U. Schramm, A. Irman, B. Cros
https://…

Observation of laser plasma accelerated electrons with transverse momentum spread below the thermal level
Achieving high-quality electron beams from laser-plasma accelerators critically relies on density tailoring to control electron dynamics during injection, acceleration, and extraction. We report on the experimental observation of electron beam acceleration and 3D shaping, in transverse momentum and longitudinal phase space, controlled by plasma density tailoring in a gas cell. It leads to relativistic electron beams with a transverse momentum spread of 0.2 mec, below the thermal level imprinted…

The near-total repeal of the #InflationReductionAct, as passed by the US House, would increase USA carbon emissions by 150 MtCO2eq/year by 2030 (for power generation alone) and 1 Gt/y by 2035. (While also increasing costs nearly everywhere.)
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Heise Online reports about a Chinese maglev train prototype (or laboratory experiment) that accelerates from zero to 650 km/h in seven seconds. Yay. Except that this is completely useless performance for passenger transport. That means almost 3g acceleration.

Energy conversion and scaling analysis of relativistic magnetic reconnection
Harihar Pradhan, Kirit D Makwana, Bart Ripperda
https://arxiv.org/abs/2506.16227

Energy conversion and scaling analysis of relativistic magnetic reconnection
Relativistic magnetic reconnection is a key process for accelerating charged particles and producing high-energy radiation. We study this process using relativistic resistive magnetohydrodynamics simulations. Starting with Harris sheet configuration, we study time evolution of reconnection rate and the Alfven four Mach number for outflow. These measurements validate the Sweet-Parker scaling, consistent with previous studies. To study energy conversion processes, we calculate Ohmic dissipation, …

Acceleration of Lagrangian Particles in Shell Models of Turbulence
Lorenzo Piro, Massimo Cencini, Roberto Benzi
https://arxiv.org/abs/2506.09633 https://…

Acceleration of Lagrangian Particles in Shell Models of Turbulence
Lagrangian acceleration has been investigated both experimentally and numerically in the past, and it has been shown to exhibit extreme fluctuations, which have been rationalized as events in which tracer particles get trapped into vortical structures such as vortex tubes or filaments. Here, we consider the statistics of acceleration within the multifractal framework, as in Biferale et al. Phys. Rev. Lett. 93 064502 (2004), and investigate the statistics of Lagrangian acceleration using shell m…

Extended datasamples under the lens of Brane World Theory
Kyra Jacobo, Dorian Araya
https://arxiv.org/abs/2506.15002 https://arxiv.or…

Extended datasamples under the lens of Brane World Theory
This work revises the Brane World Theory known as Randall-Sundrum with the modification of an exponential, redshift-dependent brane tension. This model is studied in a scenario assuming no dark energy, with the aim of determining whether it can reproduce the universe's acceleration on its own, without the addition of a dark energy fluid. Bayesian statistical analysis is performed in order to constrain the free parameters of each scenario using SLS, SNIa, OHD, and BAO data samples, the last two …

Warner Bros Discovery plans to launch HBO Max in 12 countries in July, mostly in Europe and some in Asia, bringing it to around 90 territories in total (Georg Szalai/The Hollywood Reporter)
https://www.hollywoodreporter.com/business…

HBO Max to Launch in 12 Countries in July as WBD Streamer Closes in on 100 Markets (Exclusive)
Europe has been the fastest-growing international region for the streaming service, which is getting ready to accelerate its global growth strategy with the latest market debuts.

Smallest vertical beam sizes achieved in high-energy accelerators
Rogelio Tomas Garcia, Yukiyoshi Ohnishi, Frank Zimmermann
https://arxiv.org/abs/2506.12361

Smallest vertical beam sizes achieved in high-energy accelerators
FCC-ee aims at colliding electrons and positrons with vertical rms beam sizes between 30 and 50 nm with beam energies extending from about 40 GeV to 182.5 GeV. In this report, we collect experimental results of different high energy accelerator projects with comparable design vertical beam sizes.

Collimated Hard X-Rays from Hybrid Laser and Plasma Wakefield Accelerators
Hong Zhang, Jianmeng Wei, Mengyuan Chu, Jiale Zheng, Zhiheng Lou, Ruoxuan Ma, Xizhuan Chen, Hao Wang, Jiacheng Zhu, Zongxin Zhang, Yi Xu, Yuxin Leng, Song Li, Ke Feng, Wentao Wang, Ruxin Li
https://arxiv.org/abs/2506.06833…

Collimated Hard X-Rays from Hybrid Laser and Plasma Wakefield Accelerators
We report a synergistic enhancement of betatron radiation based on the hybrid laser and plasma wakefield acceleration scheme. Quasi-phase-stable acceleration in an up-ramp plasma density first generates GeV-energy electron beams that act as a drive beam for PWFA, which then further accelerates the witness beam to GeV energies, enhancing both photon energy and flux. A full width at half maximum divergence $(6.1 \pm 1.9)\times(5.8\pm 1.6) $ mrad$^2$ of betatron radiation, a critical energy of $71…