64 citations · 317 across the 27 of their papers we have counts for
28 papers
FINESSE: A Versatile Beamline for Fundamental Interactions with Neutrons at the European Spallation SourcE
J. Amaral, J. Barrow, M. Bartis +71
FINESSE (A Versatile Beamline for \textbf{F}undamental \textbf{I}nteractions with \textbf{N}eutrons at the \textbf{E}uropean \textbf{S}pallation \textbf{S}ourc\textbf{E}) is a prop…
Vertex reconstruction for a search for neutron-antineutron conversions with HIBEAM
Alexander Burgman, Sze Chun Yiu, Yamna Shaikh +13
The HIBEAM/NNBAR programme (incorporated into the FINESSE/NNBAR programme) at the European Spallation Source is proposed to search for neutrons converting to antineutrons. An impor…
Advancements in Computing and Simulation Techniques for the HIBEAM-NNBAR Experiment
Bernhard Meirose, Jorge Amaral, Alexander Burgman +14
The HIBEAM-NNBAR program is a proposed two-stage experiment at the European Spallation Source focusing on searches for baryon number violation processes as well as ultralight dark…
Fundamental Nuclear and Particle Physics At Neutron Sources
H. Abele, J. Amaral, W. R. Anthony +121
Fundamental neutron and neutrino physics at neutron sources, combining precision measurements and theory, can probe new physics at energy scales well beyond the highest energies pr…
Brazilian Report on Dark Matter 2024
I. F. M. Albuquerque, J. Alcaniz, A. Alves +51
One of the key scientific objectives for the next decade is to uncover the nature of dark matter (DM). We should continue prioritizing targets such as weakly-interacting massive pa…
Prompt emission of relativistic protons up to GeV energies from M6.4-class solar flare on July 17, 2023
Carlos Navia, Marcel Oliveira, Andre Nepomuceno
We show evidence of particle acceleration at GEV energies associated directly with protons from the prompt emission of a long-duration M6-class solar flare on July 17, 2023, rather…
HighNESS Conceptual Design Report: Volume I
V. Santoro, O. Abou El Kheir, D. Acharya +87
The European Spallation Source, currently under construction in Lund, Sweden, is a multidisciplinary international laboratory. Once completed to full specifications, it will operat…
Compton-Getting effect due to terrestrial orbital motion observed on cosmic ray flow from Mexico-city Neutron Monitor
Carlos Navia, Marcel de Oliveira, Andre Nepomuceno
We look for a diurnal anisotropy in the cosmic ray flow, using the Mexico-City Neutron Monitor (NM) detector, due to the Earth's orbital motion and predicted by Compton-Getting (C-…
Alignment of air showers produced by ultra-high energy cosmic rays at the Pierre Auger Observatory
Carlos Navia, Marcel de Oliveira, Andre Nepomuceno
We show that the energy-weighted angular (zenith, azimuth) distribution of extensive air showers (EAS), produced by Ultra High Energy (UHE) cosmic rays at the Pierre Auger Observat…
Particle Physics at the European Spallation Source
H. Abele, A. Alekou, A. Algora +176
Presently under construction in Lund, Sweden, the European Spallation Source (ESS) will be the world's brightest neutron source. As such, it has the potential for a particle physic…
The Development of the NNBAR Experiment
F. Backman, J. Barrow, Y. Beßler +40
The NNBAR experiment for the European Spallation Source will search for free neutrons converting to antineutrons with a sensitivity improvement of three orders of magnitude compare…
A Computing and Detector Simulation Framework for the HIBEAM/NNBAR Experimental Program at the ESS
J. Barrow, G. Brooijmans, J. I. M. Damian +22
The HIBEAM/NNBAR program is a proposed two-stage experiment at the European Spallation Source focusing on searches for baryon number violation via processes in which neutrons conve…
On a chi^2-function with previously estimated background
Fernando M. L. Almeida, Andre A. Nepomuceno
There are intensive efforts searching for new phenomena in many present and future scientific experiments such as LHC at CERN, CLIC, ILC and many others. These new signals are usua…
New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the European Spallation Source
A. Addazi, K. Anderson, S. Ansell +92
The violation of Baryon Number, , is an essential ingredient for the preferential creation of matter over antimatter needed to account for the observed baryon asymmetr…
On the short term modulation of cosmic rays by high-speed streams at the Pierre Auger surface array detectors
M. N. de Oliveira, C. R. A. Augusto, C. E. Navia +1
We present an analysis of the short-term modulation (one rotation of Bartels-27 days) of the galactic cosmic rays (GCR) by the solar wind, based on the cosmic ray rates observed by…
Limits on 331 vector bosons from LHC proton collision data
Andre Nepomuceno, Bernhard Meirose
In this paper, limits are set on bileptons masses and couplings in the context of the the 331 Model, as well as generic, non-331 Models predicting bileptons. The following measurab…
Possible GeV counterpart at the ground level associated with Fermi LAT gamma-ray bursts
C. R. A. Augusto, C. E. Navia, M. N. de Oliveira +3
From June 2014 to February 2017, the Fermi LAT detected 46 gamma-ray bursts (GRBs) with photon energies above 20 MeV, and the trigger coordinates of seven of them were within the F…
The 2015 Summer Solstice Storm: one of the major geomagnetic storms of solar cycle 24 observed at ground level
C. R. A. Augusto, C. E. Navia, M. N. de Oliveira +8
We report on the 22-23 June 2015 geomagnetic storm. There has been a shortage of intense geomagnetic storms during the current solar cycle 24 in relation to the previous cycle. Thi…
Relativistic proton levels from region AR 12673 (GLE \#72) and the heliospheric current sheet as a SunEarth magnetic connection
C. R. A. Augusto, C. E. Navia, M. N. de Oliveira +4
On 2017 September 10 Neutron Monitors (NMs) apparatus located at ground level and high latitudes detected an increase in the counting rate associated to solar energetic particles (…
Torsion Limits From Production at the LHC
Fernando Marroquim, Fernando de Andrade, Maria A. B. do Vale +1
Torsion models constitute a well known class of extended quantum gravity models. In this work, one investigates the phenomenological consequences of a torsion field interacting wit…
Muon Excess at Sea Level during the Progress of a Geomagnetic Storm and High Speed Stream Impact Near the Time of Eath's Heliospheric Sheet Crossing
C. R. A. Augusto, C. E. Navia, M. N. de Oliveira +3
In this article we present results of the study on the association between the muon flux variation at ground level, registered by the \textit{\textit{New-Tupi}} muon telescopes ($2…
First results on Bilepton production based on LHC collision data and predictions for Run II
Andre Nepomuceno, Bernhard Meirose, Felipe Eccard
The LHC potential for discovering doubly-charged vector bileptons is investigated considering the measurable process . The study…
Prompt emission from GRB 150915A in the GeV energy range detected at ground by the New-Tupi detector: A review
C. R. A. Augusto, C. E. Navia, M. N. de Oliveira +3
Since 2014, a new detector (New-Tupi) consisting of four plastic scintillators () placed in pairs and located in Niteroi, Rio de Janeiro, Brazil, has b…
Ground level observations of relativistic solar particles on Oct 29th, 2015: Is it a new GLE on the current solar cycle?
C. R. A. Augusto, C. E. Navia, M. N. de Oliveira +2
On Oct. 29th, 2015, the Earth crossed through a fold in the heliospheric current sheet. This is called a "solar sector boundary crossing". Under this circumstances, a large coronal…