Expertini Research Research

Browse Research Papers

950+ open-access research outputs.

โœ• Clear
๐Ÿ” fernando amat ๐Ÿ“‚ Physics
Showing 950 results for "fernando amat" in Physics
Physics Preprint PDF DOI

Multi-wavelength study of EP250416a / GRB 250416C: An Optically Dark Long GRB with a Late Jet Break

Guoying Zhao, Duo-Le Cao, Rong-Feng Shen, Hui Sun, Chi-Chuan Jin, Wei-Min Yuan, Chen-Wei Wang, Shao-Lin Xiong, Dmitry Svinkin, Dong Xu, Shuai-Qing Jiang, Peter G. Jonker, Yun Wang, Hao Zhou, Chang Zhou, Xinlei Chen, Kaushik Chatterjee, Xue-Feng Wu, Xiao-Feng Wang, Chun Chen, Yuan Liu, Andrew J. Levan, Jennifer Alexandra Chacon Chavez, Jonathan Quirola-Vasquez, Franz E. Bauer, Antonio Martin-Carrillo, Gregory Corcoran, Daniele B. Malesani, Dmitry Frederiks, Anna Ridnaia, Alexandra L. Lysenko, Mikhail Ulanov ยท 2026

We present multi-wavelength study of the $\gamma$/X-ray transient EP250416a (also designated GRB 250416C), triggered by the Einstein Probe (EP) Wide-field X-ray Telescope and also by SVOM and Konus-Wiโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Investigation of Nonlinear Collective Dynamics in Relativistic Heavy-Ion Collisions Using A Multi-Phase Transport Model

Zhi-Jie Yang, Hao-jie Xu, Jie Zhao, Hanlin Li ยท 2026

The nonlinear response coefficient, $\chi_{4,22}$, is a crucial observable for probing the dynamical properties of the quark-gluon plasma (QGP). While traditionally understood as a signature of mediumโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

XRF 241001A/SN 2024aiiq: A Faint Soft X-ray Transient Detected by SVOM with a Broad-Line Type Ic Supernova Revealed by JWST

B. Schneider, M. Brunet, B. P. Gompertz, D. Turpin, D. B. Malesani, O. Godet, A. J. Levan, F. Daigne, N. Sarin, N. A. Rakotondrainibe, A. Martin-Carrillo, J. T. Palmerio, C. C. Thone, H. L. Li, A. Saccardi, A. de Ugarte Postigo, S. Antier, V. Buat, D. Durovcikova, L. Izzo, J. K. Leung, G. Mo, Y. L. Qiu, S. D. Vergani, J. Wang, J. Y. Wei, L. P. Xin, R. Mochkovitch, B. Zhang, H. B. Cai, S. Campana, A. Coleiro, B. Cordier, P. D'Avanzo, N. Dagoneau, V. D'Elia, Y. W. Dong, D. Gotz, S. Guillot, X. H. Han, D. H. Hartmann, L. Huang, Y. F. Huang, P. Jakobsson, A. Klotz, C. Lachaud, X. M. Lu, P. Maggi, M. De Pasquale, F. Piron, R. Salvaterra, S. Schanne, J. Sollerman, N. R. Tanvir, Z. Vidadi, P. Wang, C. Wu, S. L. Xiong, Y. Xu, T. Zafar, P. P. Zhang, S. N. Zhang, S. J. Zheng ยท 2026

X-ray flashes (XRFs) are a type of gamma-ray bursts (GRBs) with prompt emission predominantly below 30 keV poorly detected by previous missions. The advent of the SVOM mission, with its wide-field insโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Impact of nuclear deformation on particle production in $Ne+Ne$ collisions at \texorpdfstring{\five}{sqrt(sNN)=5.36 TeV} from AMPT-SM

M. U. Ashraf, A. M. Khan, M. Shahid, Faraz Mohd Mehdi ยท 2026

We present a systematic study of particle production in $Ne+Ne$ collisions at $\sqrt{s_{\mathrm{NN}}} = 5.36$ TeV using the A Multi-Phase Transport (AMPT) model with string melting (SM) configuration.โ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Stripping Symmetry: Electrochemical Oxidation to a Superconducting Polar Metal in Au2Pb0.914P2

Scott B. Lee, Stephanie R. Dulovic, Joseph W. Stiles, Xin Zhang, Fatmagul Katmer, Sudipta Chatterjee, Jaime Moya, Allana G. Iwanicki, Abby N. Neill, Chris Lygouras, Tieyan Chang, Tyrel M. McQueen, Yu-Sheng Chen, Leslie M. Schoop ยท 2026

Polar metals and noncentrosymmetric superconductors are exceptionally rare, yet their broken inversion symmetry can give rise to emergent electronic phenomena including mixed singlet-triplet supercondโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

An archival search for gamma-ray bursts gravitationally lensed by galaxy clusters

Dan Ryczanowski, Benjamin P. Jones, Benjamin P. Gompertz, Graham P. Smith ยท 2026

Discoveries of gamma-ray bursts (GRBs) have become commonplace in recent decades, totalling $\mathcal{O}(10^4)$ unique detections across various missions. However, there have been no confirmed discoveโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Probing the chiral magnetic effect via transverse spherocity event classification in relativistic heavy-ion collisions

Somdeep Dey, Abhisek Saha ยท 2026

We present the first study of the Chiral Magnetic Effect (CME) using transverse spherocity as an event-shape classifier in Pb+Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV, simulated with the A Multi-Phโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Fluid Acceleration in Heavy-Ion Collisions

Song-Ze Zhong, Xian-Gai Deng, Xu-Guang Huang, Yu-Gang Ma ยท 2026

We study the generation and space-time evolution of fluid acceleration in heavy-ion collisions using AMPT and UrQMD transport models combined with a Gaussian smearing method. The peak proper acceleratโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Charge-Dependent Directed Flow in Symmetric Nuclear Collisions

Vipul Bairathi, Kishora Nayak ยท 2026

The directed flow ($v_1$) of identified hadrons ($\pi^{\pm}, K^{\pm}, p, \bar{p}, \phi, \Lambda$, and $\bar{\Lambda}$) is studied in symmetric nuclear collisions (O+O, Cu+Cu, Ru+Ru, Au+Au, and U+U) atโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Investigating peculiar prompt emission properties of the multi-Peaked GRB 250129A

Ankur Ghosh, Tamador K. M. Aldowma, Soebur Razzaque ยท 2026

We present a high-energy spectral analysis of GRB 250129A, which was triggered by the Swift-BAT. The burst exhibits a complex, multi-peaked temporal structure characterized by two distinct emission epโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Measurement of the transverse-momentum fraction of strange hadrons from jet-like correlation structures in pp collisions at $\sqrt{s} = 13$ TeV

ALICE Collaboration ยท 2026

The first measurements of the average transverse-momentum fraction ($\langle z \rangle$) as a function of transverse momentum ($p_{\rm T}$) for strange baryons ($\Lambda$ and $\bar{\Lambda}$) and straโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Tightening Cosmological Constraints Within and Beyond $\Lambda$CDM Using Gamma-Ray Bursts Calibrated with Type Ia Supernovae

Wei Hong, Luca Izzo, Massimo Della Valle, Orlando Luongo, Marco Muccino, Tong-Jie Zhang ยท 2026

Context. Gamma-ray bursts (GRBs) reach redshifts beyond Type Ia supernovae (SNe Ia) and can extend distance measurements into the early Universe, but their use as distance indicators is limited by theโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Local kinetic sensors for adaptive mesh and algorithm refinement

R. M. Strassle, S. A. Hosseini, I. V. Karlin ยท 2026

This paper presents novel refinement sensors for the application to adaptive mesh and algorithm refinement (AMAR) with kinetic models, such as discrete velocity and lattice Boltzmann methods. While reโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Measurement of correlations between elliptic flow and mean transverse momentum in pp, p-Pb, and Pb-Pb collisions at the LHC

ALICE Collaboration ยท 2026

Measurements of the event-by-event correlation between elliptic flow ($v_2$) and the mean transverse momentum ($[p_{\rm T}]$) using the modified Pearson correlation coefficient $\rho(v_2^2,[p_{\rm T}]โ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Do the Amati and Yonetoku Relations Evolve with Redshift for Swift GRBs?

Ali M. Hasan, Walid J. Azzam ยท 2026

Gamma-ray bursts (GRBs) are extremely powerful stellar explosions that have been observed to huge distances with redshifts exceeding 9. Although GRBs are not standard candles, one may standardize themโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Enhancement of metallicity by Na doping in La$_3$Ni$_2$O$_{7+{\delta}}$

Yingying Gao, Wei Zhou, W. H. Guo, Chunqiang Xu, H. F. Chen, Z. D. Han, Xiaofeng Xu, Yinzhong Wu, Bin Qian ยท 2026

The observation of high-$T_c$ superconductivity in bilayer nickelate La$_3$Ni$_2$O$_7$ under high pressure provides a new venue for exploring novel unconventional superconductors and elucidating the mโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Quantum Speedup for Network Coordination via Fourier Sparsity

Vinayak Dixit ยท 2026

Network coordination - synchronising traffic signals, scheduling trains, assigning communication slots requires minimising pairwise costs across coupled systems. These problems are NP-hard yet share aโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Improved Pion-Kaon Identification in Heavy-Ion Collisions with a Two-Dimensional Transformation

Shaowei Lan, Bijun Fan, Like Liu ยท 2026

Accurate identification of charged pions and kaons is essential for precision measurements in relativistic heavy-ion collisions, but becomes increasingly challenging at intermediate and high transversโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Short-duration GRB 250221A Afterglow Driven by Two-Component Jets from the merger of a compact star

Xiao Tian, Hou-Jun Lu, Xiao-Xuan Liu, Xiao-Fei Dong, Jia Ren, Wen-Long Zhang, En-Wei Liang ยท 2026

GRB 250221A is a short gamma-ray burst (GRB) at redshift $z=0.768$, with a duration of 1.8 s and no extended emission in either Swift/Burst Alert Telescope or Konus-Wind bands. A remarkable rebrightenโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Observation of flow vector fluctuations in p$-$Pb collisions at $\mathbf{\sqrt{\textit{s}_{_{\bf NN}}}}=$ 5.02 TeV

ALICE Collaboration ยท 2026

Measurements of transverse momentum ($p_{\rm T}$) and pseudorapidity ($\eta$) dependent flow vector fluctuations in p$-$Pb collisions at $\sqrt{s_{_{\rm NN}}} = 5.02$ TeV at the CERN Large Hadron Collโ€ฆ

Read Paper โ†’
Page 1 of 48 Next โ†’