NFDI4DS | UHH-SEMS - Publication Details

D. Badagnani

ORCID: 0000-0001-9766-4222

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A5029828439

Research Areas

Dark Matter and Cosmic Phenomena
Astrophysics and Cosmic Phenomena
Quantum Chromodynamics and Particle Interactions
Neutrino Physics Research
Particle physics theoretical and experimental studies
Educational theories and practices
Black Holes and Theoretical Physics
Atomic and Subatomic Physics Research
Educational methodologies and cognitive development
Social Skills and Education
Gamma-ray bursts and supernovae
Science Education and Pedagogy
Radio Astronomy Observations and Technology
Atmospheric Ozone and Climate
High-Energy Particle Collisions Research
Historical Studies in Science
Advanced NMR Techniques and Applications
Particle Detector Development and Performance
Literacy and Educational Practices
Higher Education Teaching and Evaluation
E-Learning and Knowledge Management
Physics of Superconductivity and Magnetism
History of Education in Spain
Educational Innovations and Technology
Higher Education and Sustainability

National University of Tierra del Fuego
2019-2023

ORCID
2022

Universidad Nacional de La Plata
2008-2019

Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2009-2010

Consejo Nacional de Investigaciones Científicas y Técnicas
2008-2010

Universidad Complutense de Madrid
2010

Université Grenoble Alpes
2008

Pierre Auger Observatory
2007

RWTH Aachen University
2007

Universidad Nacional de Cuyo
1999

Correlation of the Highest-Energy Cosmic Rays with Nearby Extragalactic Objects

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta C. Aguirre D. Allard and 95 more

Using data collected at the Pierre Auger Observatory during past 3.7 years, we demonstrated a correlation between arrival directions of cosmic rays with energy above 6 × 10 19 electron volts and positions active galactic nuclei (AGN) lying within ∼75 megaparsecs. We rejected hypothesis an isotropic distribution these least 99% confidence level from prescribed priori test. The observed is compatible that highest-energy particles originate nearby extragalactic sources whose flux has not been...

10.1126/science.1151124 article EN Science 2007-11-09

Observation of the Suppression of the Flux of Cosmic Rays above4×1019 eV

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta C. Aguirre D. Allard and 95 more

The energy spectrum of cosmic rays above 2.5 x 10;{18} eV, derived from 20,000 events recorded at the Pierre Auger Observatory, is described. spectral index gamma particle flux, J proportional, variantE;{-gamma}, energies between 4 eV and 10;{19} 2.69+/-0.02(stat)+/-0.06(syst), steepening to 4.2+/-0.4(stat)+/-0.06(syst) higher energies. hypothesis a single power law rejected with significance greater than 6 standard deviations. data are consistent prediction by Greisen Zatsepin Kuz'min.

10.1103/physrevlett.101.061101 article EN Physical Review Letters 2008-08-04

Measurement of the Depth of Maximum of Extensive Air Showers above1018 eV

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta E. J. Ahn D. Allard and 95 more

We describe the measurement of depth maximum, X{max}, longitudinal development air showers induced by cosmic rays. Almost 4000 events above 10;{18} eV observed fluorescence detector Pierre Auger Observatory in coincidence with at least one surface station are selected for analysis. The average shower maximum was found to evolve energy a rate (106{-21}{+35}) g/cm{2}/decade below 10{18.24+/-0.05} eV, and (24+/-3) this energy. measured shower-to-shower fluctuations decrease from about 55 26...

10.1103/physrevlett.104.091101 article EN Physical Review Letters 2010-03-01

Measurement of the energy spectrum of cosmic rays above 1018 eV using the Pierre Auger Observatory

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta E. J. Ahn D. Allard and 95 more

10.1016/j.physletb.2010.02.013 article EN Physics Letters B 2010-03-01

Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta C. Aguirre D. Allard and 95 more

10.1016/j.astropartphys.2008.01.002 article EN Astroparticle Physics 2008-04-01

The fluorescence detector of the Pierre Auger Observatory

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta C. Aguirre E. J. Ahn and 95 more

10.1016/j.nima.2010.04.023 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2010-05-26

Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter

OPENALEX - Publications

P. Abreu M. Aglietta E. J. Ahn D. Allard I. Allekotte and 95 more

10.1016/j.astropartphys.2010.08.010 article EN Astroparticle Physics 2010-09-08

Upper limit on the cosmic-ray photon flux above 1019eV using the surface detector of the Pierre Auger Observatory

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta C. Aguirre D. Allard and 95 more

10.1016/j.astropartphys.2008.01.003 article EN Astroparticle Physics 2008-05-01

Trigger and aperture of the surface detector array of the Pierre Auger Observatory

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta E. J. Ahn D. Allard and 95 more

10.1016/j.nima.2009.11.018 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2010-01-01

Upper Limit on the Diffuse Flux of Ultrahigh Energy Tau Neutrinos from the Pierre Auger Observatory

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta C. Aguirre D. Allard and 95 more

The surface detector array of the Pierre Auger Observatory is sensitive to Earth-skimming tau neutrinos that interact in Earth's crust. Tau leptons from ${\ensuremath{\nu}}_{\ensuremath{\tau}}$ charged-current interactions can emerge and decay atmosphere produce a nearly horizontal shower with significant electromagnetic component. data collected between 1 January 2004 31 August 2007 are used place an upper limit on diffuse flux at EeV energies. Assuming...

10.1103/physrevlett.100.211101 article EN Physical Review Letters 2008-05-27

Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta C. Aguirre E. J. Ahn and 95 more

10.1016/j.astropartphys.2009.04.003 article EN Astroparticle Physics 2009-07-01

Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta C. Aguirre E. J. Ahn and 95 more

Data collected at the Pierre Auger Observatory are used to establish an upper limit on diffuse flux of tau neutrinos in cosmic radiation. Earth-skimming ${\ensuremath{\nu}}_{\ensuremath{\tau}}$ may interact Earth's crust and produce a $\ensuremath{\tau}$ lepton by means charged-current interactions. The emerge from Earth decay atmosphere nearly horizontal shower with typical signature, persistent electromagnetic component even very large atmospheric depths. search procedure select events...

10.1103/physrevd.79.102001 article EN Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology 2009-05-01

An upper limit to the photon fraction in cosmic rays above 1019eV from the Pierre Auger Observatory

OPENALEX - Publications

J. Abraham M. Aglietta C. Aguirre D. Allard I. Allekotte and 95 more

10.1016/j.astropartphys.2006.10.004 article EN Astroparticle Physics 2007-03-01

The exposure of the hybrid detector of the Pierre Auger Observatory

OPENALEX - Publications

P. Abreu M. Aglietta E. J. Ahn D. Allard I. Allekotte and 95 more

10.1016/j.astropartphys.2010.10.001 article EN Astroparticle Physics 2010-10-11

Anisotropy studies around the galactic centre at EeV energies with the Auger Observatory

OPENALEX - Publications

J. Abraham M. Aglietta C. Aguirre D. Allard I. Allekotte and 95 more

10.1016/j.astropartphys.2006.11.002 article EN Astroparticle Physics 2007-04-01

Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory

OPENALEX - Publications

J. Abraham P. Abreu M. Aglietta C. Aguirre E. J. Ahn and 95 more

10.1016/j.astropartphys.2009.06.004 article EN Astroparticle Physics 2009-09-01

Tadpole versus anomaly cancellation in D = 4,6 compact IIB orientifolds

OPENALEX - Publications

G. Aldazábal D. Badagnani Luis E. Ibáñez Ángel M. Uranga

10.1088/1126-6708/1999/06/031 article EN Journal of High Energy Physics 1999-06-29

The use of πNΔ gauge couplings in elastic πNscattering

OPENALEX - Publications

A. Mariano C. Barbero D. Badagnani

We perform a phenomenological analysis on the use of ?N?(1232) alternative couplings in ?N scattering, within single and well-controlled dynamical model. compare numerical results for elastic cross section obtained using conventional couplings, already adopted several reaction calculations, with those so-called ?spin-3/2 gauge-invariant? vertexes suggested recently. Confronting experimental cross-sectional data region around resonance, we see that these are by no means equivalent differences...

10.1088/0954-3899/39/3/035005 article EN Journal of Physics G Nuclear and Particle Physics 2012-02-10

Inconsistency of the ‘spin-3/2 gauge invariant’ interaction of Rarita–Schwinger fields

OPENALEX - Publications

D. Badagnani A. Mariano C. Barbero

We perform the Dirac quantization of Rarita-Schwinger fields interacting with a spinor and first derivative pseudoscalar field.We achieve calculations for two forms this interaction: we review conventional coupling lowest order, reproducing well known inconsistencies in its anticommutator algebra.Then, analysis on next order term popularly as 'spin-3/2 gauge invariant interaction', which is claimed to be free these inconsistencies.Nevertheless find that direct application formalism leads...

10.1088/1361-6471/44/2/025001 article EN Journal of Physics G Nuclear and Particle Physics 2017-01-05

Consistence between $\pi N{\rm{\Delta }}$ spin-3/2 gauge couplings and electromagnetic gauge invariance

OPENALEX - Publications

D. Badagnani C. Barbero A. Mariano

We review the consistency between recently proposed spin-3/2 gauge interaction for Δ resonance with nucleons (N) and pions (π), fundamental electromagnetic invariance in any radiative amplitude. show that: (1) introduced through minimal substitution all derivatives breaks invariance; (2) corrections (in general not zero effective Lagrangian theory) of strong vertexes at one loop reintroduce conventional π derivative interaction. In fact, analyzing elastic scattering amplitude, we that chiral...

10.1088/0954-3899/42/12/125001 article EN Journal of Physics G Nuclear and Particle Physics 2015-11-03

Evidence on the coherence–pieces debate from the force concept inventory

OPENALEX - Publications

D. Badagnani Diego Petrucci Osvaldo Cappannini

We use force concept inventory (FCI) data to probe the consistency of commonsense physics as a knowledge system.The source this is administration FCI first-year science university students.Data quality was checked using item response theory and studying answer distributions for each question.We find apparently paradoxical results: depending on how analysed, answers seem highly systematic or almost random-like.These results are compatible with others found in literature can be construed...

10.1088/1361-6404/aa940f article EN European Journal of Physics 2017-10-17

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