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1. Final results on $${}^\mathbf{82 }{\hbox {Se}}$$82Se double beta decay to the ground state of $${}^\mathbf{82 }{\hbox {Kr}}$$82Kr from the NEMO-3 experiment

   https://doi.org/10.1140/epjc/s10052-018-6295-x  

   Arnold, R.; Augier, C.; Barabash, A. S.; Basharina-Freshville, A.; Blondel, S.; Blot, S.; Bongrand, M.; Boursette, D.; Brudanin, V.; Busto, J.; et al (October 2018, The European Physical Journal C)
2. Electron-impact excitation of the 5$$\varvec{\,^2\mathbf{S}_{1/2} \rightarrow 5\,^2\mathbf{P}_{1/2}}$$ and 5$$\varvec{\,^2\mathbf{P}_{3/2}}$$ transitions in rubidium by 40 eV electrons: theory and experiment

   https://doi.org/10.1140/epjd/s10053-022-00413-7  

   Hamilton, K. R.; Zatsarinny, O.; Bartschat, K.; Predojević, B.; Šević, D.; Marinković, B. P.; Brunger, M. J. (May 2022, The European Physical Journal D)

   Abstract We report on a series of detailed Breit-Pauli and Dirac B-spline R-matrix (DBSR) differential cross section (DCS) calculations for excitation of the $$5\,^2\mathrm{S}_{1/2} \rightarrow 5\,^2\mathrm{P}_{1/2}$$ 5 2 S 1 / 2 → 5 2 P 1 / 2 and $$5\,^2\mathrm{S}_{1/2}\rightarrow 5\,^2\mathrm{P}_{3/2}$$ 5 2 S 1 / 2 → 5 2 P 3 / 2 states in rubidium by 40 eV incident electrons. The early BP computations shown here were carried out with both 5 states and 12 states, while the DBSR models coupled 150 and 325 states, respectively. We also report corresponding results from a limited set of DCS measurements on the unresolved $$5\,^2\mathrm{P}_{1/2,3/2}$$ 5 2 P 1 / 2 , 3 / 2 states, with the experimental data being restricted to the scattered electron angular range 2– $$10^\circ $$ 10 ∘ . Typically, good agreement is found between our calculated and measured DCS for excitation of the unresolved $$5\,^2\mathrm{P}_{1/2,3/2}$$ 5 2 P 1 / 2 , 3 / 2 states, with best accord being found between the DBSR predictions and the measured data. The present theoretical and experimental results are also compared with predictions from earlier 40 eV calculations using the nonrelativistic Distorted-Wave Born Approximation and a Relativistic Distorted-Wave model. Graphic abstract 

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3. Investigating the $$\mathbf {\text {p--}\uppi ^{\pm }}$$ and $$\mathbf {\text {p--p--}\uppi ^{\pm }}$$ dynamics with femtoscopy in pp collisions at $$\mathbf {\sqrt{\textit{s}}=13}$$ TeV

   https://doi.org/10.1140/epja/s10050-025-01615-4  

   Acharya, S; Agarwal, A; Aglieri_Rinella, G; Aglietta, L; Agnello, M; Agrawal, N; Ahammed, Z; Ahmad, S; Ahn, S U; Ahuja, I; et al (August 2025, The European Physical Journal A)

   Abstract The interaction between pions and nucleons plays a crucial role in hadron physics. It represents a fundamental building block of the low-energy QCD dynamics and is subject to several resonance excitations. This work studies the$$\text {p--}\uppi ^{\pm }$$ $\text{p--}{\pi }^{\pm }$ dynamics using femtoscopic correlations in high-multiplicity pp collisions at$$\sqrt{s} = 13$$ $\sqrt{s}=13$  TeV measured by ALICE at the LHC. As the final-state interaction between protons and pions is well constrained by scattering experiments and the study of pionic hydrogen, the results give access to information on the particle-emitting source in pp collisions using the femtoscopy methods. The scaling of the source size of primordial protons and pions against their pair transverse mass is extracted. The results are compared with the source sizes studied with p–p,$$\text {p--K}^+$$ ${\text{p--K}}^{+}$ , and$$\uppi ^\pm $$ ${\pi }^{\pm }$ –$$\uppi ^\pm $$ ${\pi }^{\pm }$ pairs by ALICE in the same collision system and are found to be in agreement for the different particle pairs. This reinforces recent findings by ALICE of a common emission source for all hadron-pairs in pp collisions at LHC energies. Furthermore, the$$\text {p--p--}\uppi ^{\pm }$$ $\text{p--p--}{\pi }^{\pm }$ systems are studied using three-particle femtoscopy in pp collisions at$$\sqrt{s} = 13$$ $\sqrt{s}=13$  TeV. The presence of three-body effects is analyzed utilizing the cumulant expansion method. In this formalism, the known two-body interactions are subtracted in order to isolate the three-body effects. For both,$$\text {p--p--}\uppi ^{+}$$ $\text{p--p--}{\pi }^{+}$ and$$\text {p--p--}\uppi ^{-}$$ $\text{p--p--}{\pi }^{-}$ , a non-zero cumulant is found, indicating effects beyond pairwise interactions. These results give information on the coupling of the pion to multiple nucleons. 

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4. Multiplicity dependence of charged-particle jet production in pp collisions at $$\mathbf {\sqrt{s}}=\mathbf {13~TeV}$$

   https://doi.org/10.1140/epjc/s10052-022-10405-x  

   Acharya, S.; Adamová, D.; Adler, A.; Adolfsson, J.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; et al (June 2022, The European Physical Journal C)

   Abstract The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of $$\sqrt{s} = 13\ {\mathrm {TeV}}$$ s = 13 TeV is studied for the first time. Jets are reconstructed from charged particles using the anti- $$k_\mathrm {T}$$ k T algorithm with resolution parameters R varying from 0.2 to 0.7. The jets are measured in the pseudorapidity range $$|\eta _{\mathrm{jet}}|< 0.9-R$$ | η jet | < 0.9 - R and in the transverse momentum range $$5 

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5. Stable minimal hypersurfaces in $$\mathbf{R}^5$$

   https://doi.org/10.4007/annals.2026.204.1.5  

   Chodosh, Otis; Li, Chao; Minter, Paul; Stryker, Douglas (July 2026, Annals of Mathematics)

   We show that a complete, two-sided stable minimal hypersurface in 𝐑^5 is flat. 

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