Tootfinder

It's been bothering me for a while, so I created a Racket extension to refer to variables by position: eg,
(define hypotenuse
(lambda 2
(sqrt ( (square $0)
(square $1)))))
Why not. What fun. No more variable name choice paralysis! 🤣
https://github.com/shriram/lambda-n

GitHub - shriram/lambda-n: the lambda-n language
the lambda-n language. Contribute to shriram/lambda-n development by creating an account on GitHub.

SCET sum rules for $\Lambda_b \to \Lambda \ell^ \ell^-$, $\Lambda \gamma$ decays
Long-Shun Lu, Cai-Dian L\"u, Yue-Long Shen, Yan-Bing Wei
https://arxiv.org/abs/2506.21419

SCET sum rules for $Λ_b$ $\rightarrow$ $Λ\ell^+\ell^-$, $Λγ$ decays
We construct light-cone sum rules for various types of effective form factors in the $Λ_b \to Λ\ell^+\ell^-$ and $Λ_b \to Λγ$ decays by analyzing vacuum-to-$Λ_b$ (or $γ^\ast$-to-$Λ_b$) correlation functions with the light $Λ$-baryon interpolating current. These form factors, defined via hadronic matrix elements within soft-collinear effective theory (SCET), enter the next-to-leading-power QCD factorization formulas for large-recoil transitions. Implementing the perturbative matching fr…

Measurement of $\Lambda$ Polarization in the $\pi^{-}p \to K^{0} \Lambda$ Reaction at $p_{\pi^{-}}=1.33$ GeV/$c$ toward a New $\Lambda p$ Scattering Experiment
PARC E40 Collaboration, T. Sakao, K. Miwa, J. K. Ahn, Y. Akazawa, T. Aramaki, S. Ashikaga, S. Callier, N. Chiga, S. W. Choi, H. Ekawa, P. Evtoukhovitch, N. Fujioka, M. Fujita, T. Gogami, T. Harada, S. Hasegawa, S. H. Hayakawa, R. Honda, S. Hoshino, K. Hosomi, M. Ichikawa, Y. Ichikawa, M. Ieiri, M. Ikeda, K. Imai, Y. Ishikawa, S.…

Measurement of $Λ$ Polarization in the $π^{-}p \to K^{0} Λ$ Reaction at $p_{π^{-}}=1.33$ GeV/$c$ toward a New $Λp$ Scattering Experiment
This paper presents high-precision experimental data of the polarization of the $Λ$ hyperon in the $π^{-}p \to K^{0} Λ$ reaction, measured in the angular range $0.6<\cos θ^{CM}_{K0}<1.0$ with a fine bin width of $d\cos θ^{CM}_{K0}=0.05$. The data were obtained from the J-PARC E40 experiment at the K1.8 beamline in the J-PARC Hadron Experimental Facility. The observed average polarization of $Λ$ in the range $0.60<\cos θ^{CM}_{K0}<0.85$ was $0.932 \pm 0.058 \,(\text{stat}) \pm 0.028 \,(\t…

It's #GrindayFriday! Brazil's LYMPHATIC PHLEGM are pathological goregrind legends, and their 2007 record 'Show-Off Cadavers - The Anatomy of Self-Display' is my favorite of theirs. Dynamics, melodies, killer riffs- you can hear how they've influenced Lipoma, Sulfuric Cautery, Tunkio, etc.
(2018 reprint):

from my link log —
The Epic Verse calculus: a core calculus for functional logic programming.
https://simon.peytonjones.org/verse-calculus/
saved 2025-06-12

Zawsze cieszy, kiedy autorzy paczki zaakceptują trywialną poprawkę, mimo że oczywisty błąd w kodzie w danej chwili ich nie dotyka.
#Gentoo

Record-breaking 'gigantic' deep-sea limpet species named after ONE PIECE character
https://phys.org/news/2025-07-gigantic-deep-sea-limpet-species.html

A Quantum-Control Lambda-Calculus with Multiple Measurement Bases
Alejandro D\'iaz-Caro, Nicolas A. Monzon
https://arxiv.org/abs/2506.16244 https://

A Quantum-Control Lambda-Calculus with Multiple Measurement Bases
We introduce Lambda-SX, a typed quantum lambda-calculus that supports multiple measurement bases. By tracking duplicability relative to arbitrary bases within the type system, Lambda-SX enables more flexible control and compositional reasoning about measurements. We formalise its syntax, typing rules, subtyping, and operational semantics, and establish its key meta-theoretical properties. This proof-of-concept shows that support for multiple bases can be coherently integrated into the type disc…

Determination of the sensitivity of $\Lambda$ and $\Lambda^ _c$ electric dipole moments using a full angular analysis
R. T. Ovsiannikov, A. Yu. Korchin, E. Kou
https://arxiv.org/abs/2507.19056

Determination of the sensitivity of $Λ$ and $Λ^+_c$ electric dipole moments using a full angular analysis
A search for a non-zero Electric Dipole Moment (EDM) of particles, which is a clear signal of a violation of CP symmetry, is one of the unique ways to discover physics beyond the Standard Model. In this paper, we discuss a method for determining the EDM of baryons from the full angular distribution of final particles in electron-positron pair annihilation processes. The question of how accurately the state-of-the-art experiments can determine EDM of $Λ$ and $Λ_c^+$ baryons is discussed in det…

Revisiting the $\Lambda_c^ \rightarrow\bar{K}^0\eta p$ reaction: the role of $N^*(1535),~ N^*(1650)$ and $\Sigma(1620)$
Jing Song, Melahat Bayar, Yi-Yao Li, Eulogio Oset
https://arxiv.org/abs/2507.19240

Revisiting the $Λ_c^+\rightarrow\bar{K}^0ηp$ reaction: the role of $N^*(1535),~ N^*(1650)$ and $Σ(1620)$
We perform a theoretical study of the weak decay $Λ_c^+ \rightarrow \bar{K}^0 ηp$ using a coupled-channel chiral unitary approach that incorporates both pseudoscalar-baryon and vector-baryon interactions. Our framework includes contributions from both internal and external weak emission mechanisms, as well as strong final state interactions. We assume that the $N^*(1535)$ and $N^*(1650)$ resonances are dynamically generated through meson-baryon scattering and they appear as distinct structure…