NFDI4DS | UHH-SEMS - Publication Details

P. Bordalo

ORCID: 0000-0002-3651-6370

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A5103735515

Research Areas

Particle physics theoretical and experimental studies
High-Energy Particle Collisions Research
Quantum Chromodynamics and Particle Interactions
Particle Detector Development and Performance
Radiation Detection and Scintillator Technologies
Dark Matter and Cosmic Phenomena
Nuclear reactor physics and engineering
Superconducting Materials and Applications
Particle Accelerators and Free-Electron Lasers
Nuclear Physics and Applications
Muon and positron interactions and applications
Nuclear physics research studies
Neutrino Physics Research
Particle accelerators and beam dynamics
Advanced NMR Techniques and Applications
Cold Atom Physics and Bose-Einstein Condensates
Atomic and Subatomic Physics Research
Calibration and Measurement Techniques
Quantum, superfluid, helium dynamics
Bayesian Methods and Mixture Models
Stochastic processes and statistical mechanics
Distributed and Parallel Computing Systems
Photocathodes and Microchannel Plates
Astronomical Observations and Instrumentation
DNA and Biological Computing

LIP - Laboratory of Instrumentation and Experimental Particle Physics
2015-2024

Instituto Politécnico de Lisboa
2001-2020

University of Lisbon
2003-2020

Joint Institute for Nuclear Research
2019

University of Aveiro
2017-2019

Fundação para a Ciência e Tecnologia
2005-2015

Friedrich-Alexander-Universität Erlangen-Nürnberg
2015

Bielefeld University
2014

Helsinki Institute of Physics
2007

University of Helsinki
2007

The COMPASS experiment at CERN

OPENALEX - Publications

P. Abbon E. Albrecht V. Alexakhin Yu. Alexandrov G. D. Alexeev and 95 more

10.1016/j.nima.2007.03.026 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2007-04-05

SND@LHC: the scattering and neutrino detector at the LHC

OPENALEX - Publications

Giovanni Acampora C. Ahdida R. Albanese C. Albrecht A. Alexandrov and 95 more

Abstract SND@LHC is a compact and stand-alone experiment designed to perform measurements with neutrinos produced at the LHC in pseudo-rapidity region of 7.2 < η 8.4. The located 480 m downstream ATLAS interaction point, TI18 tunnel. detector composed hybrid system based on an 830 kg target made tungsten plates, interleaved emulsion electronic trackers, also acting as electromagnetic calorimeter, followed by hadronic calorimeter muon identification system. able distinguish interactions...

10.1088/1748-0221/19/05/p05067 article EN cc-by Journal of Instrumentation 2024-05-01

Evidence for deconfinement of quarks and gluons from the J/ψ suppression pattern measured in Pb-Pb collisions at the CERN-SPS

OPENALEX - Publications

M.C. Abreu B. Alessandro C. Alexa R. Arnaldi M. Atayan and 85 more

10.1016/s0370-2693(00)00237-9 article EN Physics Letters B 2000-03-01

Study of the isospin symmetry breaking in the light quark sea of the nucleon from the Drell-Yan process

OPENALEX - Publications

A. Baldit C. Barrière J. Castor T. Chambon A. Devaux and 48 more

10.1016/0370-2693(94)90884-2 article EN Physics Letters B 1994-07-01

The deuteron spin-dependent structure function g1d and its first moment

OPENALEX - Publications

V. Alexakhin Yu. Alexandrov G. D. Alexeev M. Alexeev A. Amoroso and 95 more

10.1016/j.physletb.2006.12.076 article EN Physics Letters B 2007-02-05

Collins and Sivers asymmetries for pions and kaons in muon–deuteron DIS

OPENALEX - Publications

M. Alekseev V. Alexakhin Yu. Alexandrov G. D. Alexeev A. Amoroso and 95 more

10.1016/j.physletb.2009.01.060 article EN Physics Letters B 2009-01-31

A new measurement of the Collins and Sivers asymmetries on a transversely polarised deuteron target

OPENALEX - Publications

E.S. Ageev V. Alexakhin Yu. Alexandrov G. D. Alexeev M. Alexeev and 95 more

10.1016/j.nuclphysb.2006.10.027 article EN Nuclear Physics B 2006-11-16

Anomalous suppression in PbPb interactions at 158 GeV/c per nucleon

OPENALEX - Publications

M.C. Abreu B. Alessandro C. Alexa J. Astruc C. Baglin and 85 more

10.1016/s0370-2693(97)00915-5 article EN Physics Letters B 1997-10-01

The production of in 200 GeV/nucleon oxygen-uranium interactions

OPENALEX - Publications

C. Baglin A. Bussière J.P. Guillaud H. Ogren F. Staley and 47 more

10.1016/0370-2693(89)90905-2 article EN Physics Letters B 1989-04-01

Angular distributions of muon pairs produced by 194 GeV/c negative pions

OPENALEX - Publications

S. Falciano M. Guanziroli H. Hofer P. Lecomte P. Le Coultre and 20 more

10.1007/bf01551072 article EN Zeitschrift für Physik C 1986-12-01

The spin-dependent structure function of the proton g1p and a test of the Bjorken sum rule

OPENALEX - Publications

M. Alekseev V. Alexakhin Yu. Alexandrov G.D. Alexeev A. Amoroso and 95 more

10.1016/j.physletb.2010.05.069 article EN Physics Letters B 2010-06-02

Measurement of the Collins and Sivers asymmetries on transversely polarised protons

OPENALEX - Publications

M. Alekseev V.Yu. Alexakhin Yu. Alexandrov G.D. Alexeev A. Amoroso and 95 more

10.1016/j.physletb.2010.08.001 article EN Physics Letters B 2010-08-05

II – Experimental investigation of transverse spin asymmetries in μ-p SIDIS processes: Sivers asymmetries

OPENALEX - Publications

C. Adolph M.G. Alekseev V.Yu. Alexakhin Yu. Alexandrov G. D. Alexeev and 95 more

The COMPASS Collaboration at CERN has measured the transverse spin azimuthal asymmetry of charged hadrons produced in semi-inclusive deep inelastic scattering using a 160 GeV μ+ beam and transversely polarised NH3 target. Sivers proton been extracted Bjorken x range 0.003<x<0.7. new measurements have small statistical systematic uncertainties few percent confirm with considerably better accuracy previous measurement. is found to be compatible zero for negative positive hadrons, clear...

10.1016/j.physletb.2012.09.056 article EN cc-by Physics Letters B 2012-09-26

Quark helicity distributions from longitudinal spin asymmetries in muon–proton and muon–deuteron scattering

OPENALEX - Publications

M. Alekseev V. Alexakhin Yu. Alexandrov G.D. Alexeev A. Amoroso and 95 more

10.1016/j.physletb.2010.08.034 article EN Physics Letters B 2010-08-21

Probing dense baryon-rich matter with virtual photons

OPENALEX - Publications

J. Adamczewski-Musch O. Arnold C. Behnke A. Belounnas A. Belyaev and 95 more

10.1038/s41567-019-0583-8 article EN Nature Physics 2019-07-29

First Measurement of Transverse-Spin-Dependent Azimuthal Asymmetries in the Drell-Yan Process

OPENALEX - Publications

M. Aghasyan R. Akhunzyanov G.D. Alexeev M.G Alexeev A. Amoroso and 95 more

The first measurement of transverse-spin-dependent azimuthal asymmetries in the pion-induced Drell-Yan (DY) process is reported. We use CERN SPS 190 GeV/c π^{-} beam and a transversely polarized ammonia target. Three giving access to different transverse-momentum-dependent (TMD) parton distribution functions (PDFs) are extracted using dimuon events with invariant mass between 4.3 GeV/c^{2} 8.5 GeV/c^{2}. Within experimental uncertainties, observed sign Sivers asymmetry found be consistent...

10.1103/physrevlett.119.112002 article EN cc-by Physical Review Letters 2017-09-12

The spin structure functiong1pof the proton and a test of the Bjorken sum rule

OPENALEX - Publications

C. Adolph R. Akhunzyanov M. Alexeev G.D. Alexeev A. Amoroso and 95 more

New results for the double spin asymmetry A1p and proton longitudinal structure function g1p are presented. They were obtained by COMPASS Collaboration using polarised 200 GeV muons scattered off a longitudinally NH3 target. The data collected in 2011 complement those recorded 2007 at 160 GeV, particular lower values of x. improve statistical precision g1p(x) about factor two region x≲0.02. A next-to-leading order QCD fit to g1 world is performed. It leads new determination quark...

10.1016/j.physletb.2015.11.064 article EN cc-by Physics Letters B 2015-11-27

I – Experimental investigation of transverse spin asymmetries in μ-p SIDIS processes: Collins asymmetries

OPENALEX - Publications

C. Adolph M. Alekseev V. Alexakhin Yu. Alexandrov G. D. Alexeev and 95 more

10.1016/j.physletb.2012.09.055 article EN Physics Letters B 2012-09-26

Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised protons

OPENALEX - Publications

C. Adolph R. Akhunzyanov M. Alexeev G. D. Alexeev A. Amoroso and 95 more

Measurements of the Collins and Sivers asymmetries for charged pions neutral kaons produced in semi-inclusive deep-inelastic scattering high energy muons off transversely polarised protons are presented. The results were obtained using all available COMPASS proton data, which taken years 2007 2010. exhibit valence region a non-zero signal there hints also kaons. found to be positive compatible with zero otherwise.

10.1016/j.physletb.2015.03.056 article EN cc-by Physics Letters B 2015-04-05

Proton-number fluctuations in sNN=2.4 GeV Au + Au collisions studied with the High-Acceptance DiElectron Spectrometer (HADES)

OPENALEX - Publications

J. Adamczewski-Musch O. Arnold C. Behnke A. Belounnas A. Belyaev and 95 more

We present an analysis of proton number fluctuations in $\sqrt{s_{NN}}$ = 2.4 GeV Au+Au collisions measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI. With help extensive detector simulations done IQMD transport model events including nuclear clusters, various nuisance effects influencing observed cumulants have been investigated. Acceptance and efficiency corrections applied as a function fine grained rapidity transverse momentum bins, well considering local track...

10.1103/physrevc.102.024914 article EN Physical review. C 2020-08-24

Observation of Collider Muon Neutrinos with the SND@LHC Experiment

OPENALEX - Publications

R. Albanese A. Alexandrov F. Alicante A. Anokhina Takashi Asada and 95 more

We report the direct observation of muon neutrino interactions with SND@LHC detector at Large Hadron Collider. A dataset proton-proton collisions sqrt[s]=13.6 TeV collected by in 2022 is used, corresponding to an integrated luminosity 36.8 fb^{-1}. The search based on information from active electronic components detector, which covers pseudorapidity region 7.2<η<8.4, inaccessible other experiments collider. Muon candidates are identified through their charged-current interaction topology, a...

10.1103/physrevlett.131.031802 article EN cc-by Physical Review Letters 2023-07-19

Angular distributions of muon pairs produced by negative pions on deuterium and tungsten

OPENALEX - Publications

M. Guanziroli D. A. Jensen P. Le Coultre H. Suter V. L. Telegdi and 14 more

10.1007/bf01549713 article EN Zeitschrift für Physik C 1988-12-01

Anomalous suppression in Pb+Pb collisions at 158×A GeV/c

OPENALEX - Publications

Michel Gonin M.C. Abreu C. Alexa B. Alessandro J. Astruc and 83 more

10.1016/s0375-9474(96)00373-9 article EN Nuclear Physics A 1996-12-01

Gluon polarization in the nucleon from quasi-real photoproduction of high-pT hadron pairs

OPENALEX - Publications

E.S. Ageev V. Alexakhin Yu. Alexandrov G.D. Alexeev A. Amoroso and 95 more

We present a determination of the gluon polarization Delta G/G in nucleon, based on helicity asymmetry quasi-real photoproduction events, Q^2<1(GeV/c)^2, with pair large transverse-momentum hadrons final state. The data were obtained by COMPASS experiment at CERN using 160 GeV polarized muon beam scattered 6-LiD target. for selected events is = 0.002 +- 0.019(stat.) 0.003(syst.). From this value, we obtain leading-order QCD analysis G/G=0.024 0.089(stat.) 0.057(syst.) x_g 0.095 and mu^2...

10.1016/j.physletb.2005.11.049 article EN cc-by Physics Letters B 2005-11-29

Measurement of the spin structure of the deuteron in the DIS region

OPENALEX - Publications

E.S. Ageev V. Alexakhin Yu. Alexandrov G. D. Alexeev A. Amoroso and 95 more

10.1016/j.physletb.2005.03.025 article EN Physics Letters B 2005-03-23

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