Uppsala University

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cond-mat.mtrl-sci2025

Spin-Reorientation Dynamics and Strong-Spin Phonon Coupling in Ce-substituted SmCrO $_{3}$

Shaona Das, Ravi Kiran Dokala, Subhash Thota

We report the influence of Ce $^{3 +}$ substitution on the magnetic structures and phonon dynamics in SmCrO $_{3}$ perovskites. Magnetic landscapes are spanned by long-range canted anti…

cond-mat.mtrl-sci2025

Giant-Magnetocaloric effect and phonon dynamics in (GdCe)CrO $_{3}$

Ravi Kiran Dokala, Shaona Das, Subhash Thota

We investigate the effect of Ce $^{3 +}$ substitution on the magnetic ordering and phonon dynamics of the GdCrO $_{3}$ orthorhombic perovskite. The Ce doped compound exhibits long-range…

cond-mat.mes-hall2025

Spin Reorientation Driven Renormalization of Spin-Phonon Coupling in Fe $_{4}$ GeTe $_{2}$

Riju Pal, Md. Nur Hasan, Chumki Nayak +9

Quasi-2D van der Waals ferromagnet Fe $_{4}$ GeTe $_{2}$ , featuring the simultaneous presence of high Curie temperature ( $T_{C}$ $\sim 270$ K) and a spin-reorientation transition a…

eess.SY2025★ 1 cited

Decentralized Voltage Control of AC Microgrids with Constant Power Loads using Control Barrier Functions

Grigoris Michos, George C. Konstantopoulos

This paper proposes a novel nonlinear decentralized voltage controller for constrained regulation of meshed AC Microgrid networks with high penetration of time-varying constant pow…

hep-ex2025

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ and the Axial Charge of the $Ξ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we study the semileptonic decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ for the first time at an electron-…

astro-ph.SR2025★ 5 cited

The stellar activity-rotation-age relationship under the lens of asteroseismology

C. Pezzotti, J. Bétrisey, G. Buldgen +6

In low-mass stars, the connection between magnetic activity, rotation period, and age provides key insights into the functioning of dynamos. Fully understanding the activity-rotati…

astro-ph.CO2025

Euclid preparation. Review of forecast constraints on dark energy and modified gravity

Euclid Collaboration, N. Frusciante, M. Martinelli +326

The Euclid mission has been designed to provide, as one of its main deliverables, information on the nature of the gravitational interaction, which determines the expansion of the…

cond-mat.mtrl-sci2025★ 16 cited

Magnetic properties of the Fe $_{5}$ SiB $_{2}$ -Fe $_{5}$ PB $_{2}$ system

Daniel Hedlund, Johan Cedervall, Alexander Edström +6

The magnetic properties of the compound Fe $_{5}$ Si $_{1 - x}$ P $_{x}$ B $_{2}$ have been studied, with a focus on the Curie temperature $T_{C}$ , saturation magnetization $M_\textrm{S}…

astro-ph.IM2025

Euclid Quick Data Release (Q1). From simulations to sky: Advancing machine-learning lens detection with real Euclid data

Euclid Collaboration, N. E. P. Lines, T. E. Collett +301

In the era of large-scale surveys like Euclid, machine learning has become an essential tool for identifying rare yet scientifically valuable objects, such as strong gravitational…

hep-ex2025★ 1 cited

Evidence for the semileptonic decays $Λ_{c}^{+} \to Σ^{\pm} π^{\mp} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +680

Using $4.5 f b^{- 1}$ of $e^{+} e^{-}$ collision data collected by the BESIII detector at center-of-mass energies between $4.600$ and $4.699 G e V$ , we search for the semileptonic decays…

hep-ph2025

Kinetic Mixing and Axial Charges in the Parity-Doublet Model

Christian Kummer, Stefan Leupold, Lorenz von Smekal

The standard parity doublet model with its mass-mixing mechanism fails to describe the axial charge $g_{A}$ of the nucleon. While $g_{A} = 1$ in the original Gell-Mann--Levy model, whi…

astro-ph.SR2025★ 2 cited

High-angular-resolution ALMA imaging of the inhomogeneous dynamical atmosphere of the asymptotic giant branch star W Hya

K. Ohnaka, K. T. Wong, G. Weigelt +1

We present high-angular-resolution imaging of the asymptotic giant branch star W Hya with the Atacama Large Millimeter/submillimeter Array (ALMA) to probe the dynamics and chemistr…

hep-ex2025

Search for the decays $X (3872) \to K_{S}^{0} K^{\pm} π^{\mp}$ and $K^{*} (892) K ˉ$ at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using a 10.9 fb $^{- 1}$ data sample collected by the BESIII detector at center-of-mass energies from 4.16 to 4.34 GeV, we search for the charmless decays $X(3872) \to K_{S}^{0}K^{\p…

hep-ex2025★ 2 cited

Search for heavy neutral leptons in B-meson decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1184

A search for long-lived heavy neutral leptons produced in B-meson decays and decaying to a $μ^{\pm} π^{\mp}$ final state is performed with data collected by the LHCb experiment in pro…

hep-ex2025

Measurement of the top-quark production cross-section and charge asymmetry at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1173

The first measurements of the top- and antitop-quark differential production cross-sections and the top-quark charge asymmetry in the forward region are presented, using proton-pro…

hep-ex2025

Precision measurement of CP violation and branching fractions in $B^{\pm} \to K_{S}^{0} h^{\pm}$ $(h = π, K)$ decays and search for the rare decay $B_{c}^{\pm} \to K_{S}^{0} K^{\pm}$

R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta +1177

The decay $B^{\pm} \to K_{S}^{0} π^{\pm}$ , with a $C P$ asymmetry expected to be close to zero in the Standard Model, is theoretically clean and sensitive to potential new ph…

hep-ex2025★ 1 cited

Measurement of the branching fractions and longitudinal polarisations of $B_{(s)}^{0} \to K^{* 0} K^{* 0}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1183

A time- and flavour-integrated amplitude analysis of $B^{0}$ and $B_{s}^{0}$ decays to the $(K^{+} π^{-}) (K^{-} π^{+})$ final state in the $K^*(892)^0 \kern 0.18em \overline{\kern -0.18em K}{}^{*}…

cs.CV2025

A method for tissue-mask supported whole-body image registration in the UK Biobank

Yasemin Utkueri, Elin Lundström, Håkan Ahlström +2

The UK Biobank is a large-scale study collecting imaging and non-imaging health data. Robust and accurate inter-subject image registration of these whole-body MR images would enabl…

cond-mat.supr-con2025★ 3 cited

Nonlocal Josephson diode effect in minimal Kitaev chains

Jorge Cayao, Masatoshi Sato

We study the emergence of the nonlocal Josephson effect in a system composed of three laterally coupled minimal Kitaev chains and exploit it to realize the nonlocal Josephson diode…

hep-ex2025

Observation of the rare baryonic decay $B^{+} \to p Λ ˉ$ and measurement of its weak decay parameter

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1182

The first observation of the decay $B^{+} \to p Λ ˉ$ is presented, using proton-proton collision data collected by the LHCb experiment between 2016 and 2018 at a cent…

astro-ph.GA2025

Euclid preparation: LXXXI. The impact of nonparametric star formation histories on spatially resolved galaxy property estimation using synthetic Euclid images

Euclid Collaboration, A. Nersesian, Abdurro'uf +283

We analyzed the spatially resolved and global star formation histories (SFHs) for a sample of 25 TNG50-SKIRT Atlas galaxies to assess the feasibility of reconstructing accurate SFH…

astro-ph.GA2025

Euclid Quick Data Release (Q1): Hunting for luminous z > 6 galaxies in the Euclid Deep Fields -- forecasts and first bright detections

Euclid Collaboration, N. Allen, P. A. Oesch +309

The evolution of the rest-frame ultraviolet luminosity function (UV LF) is a powerful probe of early star formation and stellar mass build-up. At z > 6, its bright end (MUV < -21)…

astro-ph.GA2025

Euclid Quick Data Release (Q1): Identification of massive galaxy candidates at the end of the Epoch of Reionisation

Euclid Collaboration, R. Navarro-Carrera, K. I. Caputi +295

Probing the presence and properties of massive galaxies at high redshift is one of the most critical tests for galaxy formation models. In this work, we search for galaxies with st…

astro-ph.SR2025★ 5 cited

Evidence for the Keplerian orbit of a close companion around a giant star

Mats Esseldeurs, Leen Decin, Joris De Ridder +31

Close companions influence stellar evolution through tidal interactions, mass transfer, and mass loss effects. While such companions are detected around young stellar objects, main…

Spin-Reorientation Dynamics and Strong-Spin Phonon Coupling in Ce-substituted SmCrO3​

Giant-Magnetocaloric effect and phonon dynamics in (GdCe)CrO3​

Spin Reorientation Driven Renormalization of Spin-Phonon Coupling in Fe4​GeTe2​

Decentralized Voltage Control of AC Microgrids with Constant Power Loads using Control Barrier Functions

Measurements of the Absolute Branching Fraction of the Semileptonic Decay Ξ−→Λe−νˉe​ and the Axial Charge of the Ξ−

The stellar activity-rotation-age relationship under the lens of asteroseismology

Euclid preparation. Review of forecast constraints on dark energy and modified gravity

Magnetic properties of the Fe5​SiB2​-Fe5​PB2​ system

Euclid Quick Data Release (Q1). From simulations to sky: Advancing machine-learning lens detection with real Euclid data

Evidence for the semileptonic decays Λc+​→Σ±π∓e+νe​

Kinetic Mixing and Axial Charges in the Parity-Doublet Model

High-angular-resolution ALMA imaging of the inhomogeneous dynamical atmosphere of the asymptotic giant branch star W Hya

Search for the decays X(3872)→KS0​K±π∓ and K∗(892)Kˉ at BESIII

Search for heavy neutral leptons in B-meson decays

Measurement of the top-quark production cross-section and charge asymmetry at LHCb

Precision measurement of CP violation and branching fractions in B±→KS0​h± (h=π,K) decays and search for the rare decay Bc±​→KS0​K±

Measurement of the branching fractions and longitudinal polarisations of B(s)0​→K∗0K∗0 decays

A method for tissue-mask supported whole-body image registration in the UK Biobank

Nonlocal Josephson diode effect in minimal Kitaev chains

Observation of the rare baryonic decay B+→pΛˉ and measurement of its weak decay parameter

Euclid preparation: LXXXI. The impact of nonparametric star formation histories on spatially resolved galaxy property estimation using synthetic Euclid images

Euclid Quick Data Release (Q1): Hunting for luminous z > 6 galaxies in the Euclid Deep Fields -- forecasts and first bright detections

Euclid Quick Data Release (Q1): Identification of massive galaxy candidates at the end of the Epoch of Reionisation

Evidence for the Keplerian orbit of a close companion around a giant star

Spin-Reorientation Dynamics and Strong-Spin Phonon Coupling in Ce-substituted SmCrO $_{3}$

Giant-Magnetocaloric effect and phonon dynamics in (GdCe)CrO $_{3}$

Spin Reorientation Driven Renormalization of Spin-Phonon Coupling in Fe $_{4}$ GeTe $_{2}$

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ and the Axial Charge of the $Ξ^{-}$

Magnetic properties of the Fe $_{5}$ SiB $_{2}$ -Fe $_{5}$ PB $_{2}$ system

Evidence for the semileptonic decays $Λ_{c}^{+} \to Σ^{\pm} π^{\mp} e^{+} ν_{e}$

Search for the decays $X (3872) \to K_{S}^{0} K^{\pm} π^{\mp}$ and $K^{*} (892) K ˉ$ at BESIII

Precision measurement of CP violation and branching fractions in $B^{\pm} \to K_{S}^{0} h^{\pm}$ $(h = π, K)$ decays and search for the rare decay $B_{c}^{\pm} \to K_{S}^{0} K^{\pm}$

Measurement of the branching fractions and longitudinal polarisations of $B_{(s)}^{0} \to K^{* 0} K^{* 0}$ decays

Observation of the rare baryonic decay $B^{+} \to p Λ ˉ$ and measurement of its weak decay parameter