Tootfinder

Constraints on Barrow and Tsallis Holographic Dark Energy from DESI DR2 BAO data
Giuseppe Gaetano Luciano, Andronikos Paliathanasis, Emmanuel N. Saridakis
https://arxiv.org/abs/2506.03019

Constraints on Barrow and Tsallis Holographic Dark Energy from DESI DR2 BAO data
Barrow and Tsallis Holographic Dark Energy (HDE) are two recently proposed extensions of the standard HDE framework, incorporating generalized corrections to horizon entropy through the use of Barrow and Tsallis entropies. Tsallis entropy arises from non-extensive statistical phenomena which account for long-range correlations and deviations from additivity, while Barrow entropy emerges from quantum-gravitational effects on the horizon geometry, associated with fractal modifications and deforma…

A Bayesian PINN Framework for Barrow-Tsallis Holographic Dark Energy with Neutrinos: Toward a Resolution of the Hubble Tension
Muhammad Yarahmadi, Amin Salehi
https://arxiv.org/abs/2506.02235

A Bayesian PINN Framework for Barrow-Tsallis Holographic Dark Energy with Neutrinos: Toward a Resolution of the Hubble Tension
We investigate the Barrow-Tsallis Holographic Dark Energy (BTHDE) model using both traditional Markov Chain Monte Carlo (MCMC) methods and a Bayesian Physics-Informed Neural Network (PINN) framework, employing a range of cosmological observations. Our analysis incorporates data from Cosmic Microwave Background (CMB), Baryon Acoustic Oscillations (BAO), CMB lensing, Cosmic Chronometers (CC), and the Pantheon+ Type Ia supernova compilation. We focus on constraining the Hubble constant $ H_0 $, th…

Testing T2K's Bayesian constraints with priors in alternate parameterisations
Collaboration, Abe, Abe, Akutsu, Alarakia-Charles, Hakim, Monsalve, Anthony, Aoki, Apte, Arai, Arihara, Arimoto, Ashida, Atkin, Babu, Baranov, Barker, Barr, Barrow, Bates, Bathe-Peters, Batkiewicz-Kwasniak, Baudis, Berardi, Berns, Bhattacharjee, Blanchet, Blondel, Boistier, Bolognesi, Bordoni, Boyd, Bronner, Bubak, Avanzini, Caballero, Cadoux, Calabria, Cao, Cap, Carabadjac, Cartwright, Casado, Catanesi, …

Testing T2K's Bayesian constraints with priors in alternate parameterisations
Bayesian analysis results require a choice of prior distribution. In long-baseline neutrino oscillation physics, the usual parameterisation of the mixing matrix induces a prior that privileges certain neutrino mass and flavour state symmetries. Here we study the effect of privileging alternate symmetries on the results of the T2K experiment. We find that constraints on the level of CP violation (as given by the Jarlskog invariant) are robust under the choices of prior considered in the analysis…

Interacting Barrow holographic dark energy model in the presence of radiation and matter
Gopinath Guin, Souvik Paul, Sunandan Gangopadhyay
https://arxiv.org/abs/2507.01070

Interacting Barrow holographic dark energy model in the presence of radiation and matter
We have studied the effect of radiation in the interacting barrow holographic dark energy model for a non-flat universe. For both open and closed universes, we have obtained the evolution equation for the density parameters for dark energy, dark matter and radiation for a specific kind of interaction among the seven possible linear interactions; the analysis with the remaining six interactions will be updated soon in this manuscript. We have then numerically solved those coupled differential eq…

Wonderful #biochar making workshop yesterday at Bellingen Northbank Community Gardens. After all our worry about the ECL that is forming, the weather ended up being perfect. Booked out and then extras so it was a big and enthusiastic group with an inspiring range of applications for it and lots we leaned from them. We emptied the cooled down demo barrel this morning and there was a nice barrow …

Measurement of charged-current muon neutrino-argon interactions without pions in the final state using the MicroBooNE detector
MicroBooNE collaboration, P. Abratenko, D. Andrade Aldana, L. Arellano, J. Asaadi, A. Ashkenazi, S. Balasubramanian, B. Baller, A. Barnard, G. Barr, D. Barrow, J. Barrow, V. Basque, J. Bateman, O. Benevides Rodrigues, S. Berkman, A. Bhat, M. Bhattacharya, M. Bishai, A. Blake, B. Bogart, T. Bolton, M. B. Brunetti, L. Camilleri, D. Caratelli, F. Cavanna, G. Cerat…

Measurement of charged-current muon neutrino-argon interactions without pions in the final state using the MicroBooNE detector
We report a new measurement of flux-integrated differential cross sections for charged-current (CC) muon neutrino interactions with argon nuclei that produce no final state pions $(ν_μ\mathrm{CC}0π)$. These interactions are of particular importance as a topologically defined signal dominated by quasielastic-like interactions. This measurement was performed with the MicroBooNE liquid argon time projection chamber detector located at the Fermilab Booster Neutrino Beam (BNB), and uses an exposu…

Holographic dark energy models in $f(Q,T)$ gravity and cosmic constraint
Xuwei Zhang, Xiaofeng Yang, Yunliang Ren, Shuangnan Chen, Yangjun Shi, Cheng Cheng, Xiaolong He
https://arxiv.org/abs/2506.17933

Holographic dark energy models in $f(Q,T)$ gravity and cosmic constraint
In this work, we propose a new model that combines holographic dark energy with modified gravity $f(Q,T)$ to explore a possible explanation for the accelerated expansion of the universe. We incorporate the holographic principle into non-metric gravity with non-minimal matter coupling and introduce the Barrow holographic dark energy model to account for a tighter corrections, allowing for a more generalized discussion. Furthermore, we perform parameter estimation using the latest observational d…

York's Cavity Formalism and Quantum Modified Thermodynamics of (2 1)D Black Holes
Prince A Ganai, Nadeem Ul Islam, Nazir A Ganaie
https://arxiv.org/abs/2506.09086

York's Cavity Formalism and Quantum Modified Thermodynamics of (2+1)D Black Holes
We investigate the thermodynamic behavior of $(2+1)$ dimensional BTZ black holes using York's cavity formalism, in which the black hole is enclosed within a finite-radius boundary held at a fixed temperature. This canonical ensemble construction enables the precise derivation of thermodynamic quantities such as temperature, energy, entropy, pressure, and heat capacity via the integral Euclidean path approach. Extending this analysis, we incorporate quantum corrections through Barrow entropy, a …

Results from the T2K experiment on neutrino mixing including a new far detector $\mu$-like sample
Collaboration, Abe, Abe, Akutsu, Alarakia-Charles, Hakim, Monsalve, Anthony, Aoki, Apte, Arai, Arihara, Arimoto, Ashida, Atkin, Babu, Baranov, Barker, Barr, Barrow, Bates, Bathe-Peters, Batkiewicz-Kwasniak, Baudis, Berardi, Berns, Bhattacharjee, Blanchet, Blondel, Boistier, Bolognesi, Bordoni, Boyd, Bronner, Bubak, Avanzini, Caballero, Cadoux, Calabria, Cao, Cap, Carabadjac, Cartwright, Ca…

Results from the T2K experiment on neutrino mixing including a new far detector $μ$-like sample
T2K has made improved measurements of three-flavor neutrino mixing with 19.7(16.3)$\times 10^{20}$ protons on target in (anti-)neutrino-enhanced beam modes. A new sample of muon-neutrino events with tagged pions has been added at the far detector, increasing the neutrino-enhanced muon-neutrino sample size by 42.5%. In addition, new samples have been added at the near detector, and significant improvements have been made to the flux and neutrino interaction modeling. T2K data continues to prefer…