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Models for the Electric Dipole Moment and Anomalous Magnetic Moment of the Tau Lepton
Yuichiro Nakai, Yoshihiro Shigekami, Peng Sun, Zhihao Zhang
https://arxiv.org/abs/2508.05935

Models for the Electric Dipole Moment and Anomalous Magnetic Moment of the Tau Lepton
The Belle II experiment and other ongoing and projected lepton facilities are expected to greatly enhance the sensitivity to the electric dipole moment (EDM) and anomalous magnetic moment ($g-2$) for the tau lepton, making it timely to explore models that predict these observables. We present a class of models that generate a sizable EDM and $g-2$ of the tau lepton via radiative tau mass generation. Two benchmark models with different hypercharge assignments are investigated. The first model co…

Search for heavy neutral leptons in $\pi^ $ decays to positrons
NA62 Collaboration
https://arxiv.org/abs/2507.07345 https://arxiv.org…

Search for heavy neutral leptons in $π^+$ decays to positrons
A search for heavy neutral lepton ($N$) production in $π^+\to e^+ N$ in-flight decays using data collected by the NA62 experiment at CERN in 2017-2024 is reported. Upper limits for the extended neutrino mixing matrix element $|U_{e4}|^2$ are established at the level of $10^{-8}$ for heavy neutral leptons with mass in the range 95-126 $MeV/c^2$ and lifetime exceeding 50 ns.

Disney and Hearst put A E Global Media, home to A&E Network, History, and Lifetime, up for sale; sources say it's unclear if it will be sold entirely or in part (Cynthia Littleton/Variety)
https://variety.com/2025/tv/news/ae-lifeti…

A&E Network, Lifetime, History Put Up for Sale by Disney, Hearst
A&E Network, Lifetime and History have quietly been put up for sale as A+E Global Media parents Disney and Hearst test the demand for the brands.

Prestellar Cores in Turbulent Clouds: Observational Perspectives on Structure, Kinematics, and Lifetime
Sanghyuk Moon, Eve C. Ostriker
https://arxiv.org/abs/2509.07083 https://

Prestellar Cores in Turbulent Clouds: Observational Perspectives on Structure, Kinematics, and Lifetime
We analyze an ensemble of simulated prestellar cores to facilitate interpretation of structure, kinematics, and lifetime of observed cores. While our theory predicts a "characteristic" density for star formation, it also predicts that the individual critical density varies among cores; any observed sample thus contains cores at various evolutionary stages within a given density bin. By analyzing the remaining lifetime, we find cores undergoing quasi-equilibrium collapse evolve on a timescale of…

Lifetime-Aware Design of Item-Level Intelligence
Shvetank Prakash, Andrew Cheng, Olof Kindgren, Ashiq Ahamed, Graham Knight, Jed Kufel, Francisco Rodriguez, Arya Tschand, David Kong, Mariam Elgamal, Jerry Huang, Emma Chen, Gage Hills, Richard Price, Emre Ozer, Vijay Janapa Reddi
https://arxiv.org/abs/2509.08193

Lifetime-Aware Design of Item-Level Intelligence
We present FlexiFlow, a lifetime-aware design framework for item-level intelligence (ILI) where computation is integrated directly into disposable products like food packaging and medical patches. Our framework leverages natively flexible electronics which offer significantly lower costs than silicon but are limited to kHz speeds and several thousands of gates. Our insight is that unlike traditional computing with more uniform deployment patterns, ILI applications exhibit 1000X variation in ope…

Search for the lepton number violating process $J/\psi \to K^ K^ e^-e^- c.c.$
BESIII Collaboration, et al.
https://arxiv.org/abs/2507.06872 https://

Search for the lepton number violating process $J/ψ\to K^+K^+e^-e^- +c.c.$
Based on $(10087\pm 44)\times10^{6}$ $J/ψ$ events collected with the BESIII detector, we search for the lepton number violating decay $J/ψ\to K^+K^+e^-e^- + c.c.$ for the first time. The upper limit on the branching fraction of this decay is set to be $2.1 \times 10^{-9}$ at the 90$\%$ confidence level with a frequentist method. This is the first search for $J/ψ$ decays with the lepton number change by two, offering valuable insights into the underlying physical processes.

Lepton flavor violating decays of Higgs boson in the NB-LSSM
Cai Guo, Xing-Xing Dong, Shu-Min Zhao, Zhan Cao, Jia-Peng Huo, Jin-Lei Yang, Tai-Fu Feng
https://arxiv.org/abs/2509.07902

Lepton flavor violating decays of Higgs boson in the NB-LSSM
Lepton flavor violation (LFV) represents a clear new physics (NP) signal beyond the standard model (SM). NB-LSSM, the next to minimal supersymmetric extension of the SM with local B-L gauge symmetry, includes three Higgs singlets and three generations of right-handed neutrinos in the basis of MSSM, motivated by the new definition of SM-like Higgs resultly from the introducing of three Higgs singlets which mix with the two Higgs doublets at the tree level in the NB-LSSM. We calculate LFV process…

Drell--Yan lepton pair production at low invariant masses: transverse-momentum resummation and non-perturbative effects in QCD
Stefano Camarda, Giancarlo Ferrera, Lorenzo Rossi
https://arxiv.org/abs/2508.06201

Drell--Yan lepton pair production at low invariant masses: transverse-momentum resummation and non-perturbative effects in QCD
We consider the transverse-momentum ($q_T$) distribution of Drell-Yan lepton pairs produced with invariant masses ($M$) from low values up to the $Z$-boson peak ($4\leq M \leq 116$~GeV). We present perturbative predictions obtained by consistently combining the resummation of logarithmically enhanced QCD corrections at small $q_T$ ($q_T \ll M$) up to next-to-next-to-next-to-next-to-leading logarithmic accuracy with the available fixed-order calculations at next-to-next-to-leading order (i.e. $\…