Access content directly

Nicolas Constans

54
Documents

Presentation

Docteur en physique, journaliste scientifique. Auteur du blog du journal *Le Monde*, [*Dans les pas des archéologues*](http://archeo.blog.lemonde.fr/ "Dans les pas des archéologue, blog d'archéologie du journal Le Monde").

Publications

Du raisin sauvage dans le vin des Gallo-Romains

N. Constans
La Recherche, 2013, 477
Journal articles hal-01609770v1

Les premiers hominidés en huit questions

N. Constans
La Recherche, 2010, 438
Journal articles hal-01384456v1

Olivier Joubert, champion des circuits

Nicolas Constans
Interstices, 2005
Journal articles hal-01352600v1

Charmonium production and nuclear absorption in p-A interactions at 450 GeV

B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan , C. Baglin
European Physical Journal C: Particles and Fields, 2004, 33, pp.31-40. ⟨10.1140/epjc/s2003-01539-y⟩
Journal articles in2p3-00020479v1

$\phi$ production in Pb-Pb collisions at 158 GeV/c per nucleon incident momentum

B. Alessandro , C. Alexa , R. Arnaldi , J. Astruc , M. Atayan
Physics Letters B, 2003, 555, pp.147-155. ⟨10.1016/S0370-2693(02)03267-7⟩
Journal articles in2p3-00013711v1

Charmonia and Drell-Yan production in proton-nucleus collisions at the CERN SPS

B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan , C. Baglin
Physics Letters B, 2003, 553, pp.167-178. ⟨10.1016/S0370-2693(02)03265-3⟩
Journal articles in2p3-00012438v1
Image document

Pseudorapidity distributions of charged particles as a function of centrality in Pb-Pb collisions at 158 and 40 GeV per nucleon incident energy

M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
Physics Letters B, 2002, 530, pp.33-42. ⟨10.1016/S0370-2693(02)01352-7⟩
Journal articles in2p3-00011381v1
Image document

Scaling of charged particle multiplicity in Pb-Pb collisions at SPS energies

M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
Physics Letters B, 2002, 530, pp.43-55. ⟨10.1016/S0370-2693(02)01353-9⟩
Journal articles in2p3-00011383v1
Image document

Transverse momentum distributions of $J/\psi,\psi'$, Drell-Yan and continuum dimuons produced in Pb-Pb interactions at the SPS

M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
Physics Letters B, 2001, 499, pp.85-96. ⟨10.1016/S0370-2693(01)00019-3⟩
Journal articles in2p3-00008256v1
Image document

The dependence of the anomalous $J/\psi$ suppression on the number of participant nucleons

M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
Physics Letters B, 2001, 521, pp.195-203. ⟨10.1016/S0370-2693(01)01225-4⟩
Journal articles in2p3-00010537v1
Image document

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

M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
Physics Letters B, 2000, 477, pp.28-36. ⟨10.1016/S0370-2693(00)00237-9⟩
Journal articles in2p3-00007753v1
Image document

Dimuon and charm production in nucleus-nucleus collisions at the CERN-SPS

M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , J. Astruc
European Physical Journal C: Particles and Fields, 2000, 14, pp.443-455. ⟨10.1007/s100520000373⟩
Journal articles in2p3-00009703v1
Image document

Low mass dimuon production in proton and ion induced interactions at SPS

M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , J. Astruc
European Physical Journal C: Particles and Fields, 2000, 13, pp.69-78. ⟨10.1007/s100520000288⟩
Journal articles in2p3-00003710v1

Observation of a threshold effect in the anomalous $J/\psi$ suppression

M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , J. Astruc
Physics Letters B, 1999, 450, pp.456-466. ⟨10.1016/S0370-2693(99)00178-1⟩
Journal articles in2p3-00001376v1

New results on nuclear dependence of J/$\psi$ and $\psi'$ production in 450 GeV pA collisions

R. Shahoyan , M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
Rencontres de Moriond ``QCD and Hadronic Interactions'' 37, 2002, Les Arcs, France
Conference papers in2p3-00011970v1

Pseudorapidity distributions of charged particles in Pb-Pb collisions at SPS energies from the NA50 experiment

M. Idzik , M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Winter Meeting on Nuclear Physics 40, Jan 2002, Bormio, Italy. pp.5-15
Conference papers in2p3-00011530v1

Transverse momentum distribution of J/$\psi$ mesons produced in p-A and Pb-Pb interactions at the CERN SPS

N.S. Topilskaya , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Conference on Ultrarelativistic Nucleus Nucleus Collisions 16 Quark Matter 2002, Jul 2002, Nantes, France. pp.675c-678c
Conference papers in2p3-00012336v1

J/$\psi$ production in proton-nucleus and nucleus-nucleus interactions at the CERN SPS

F. Prino , M-C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Workshop on Gross Properties of Nuclei and Nuclear Excitations 30, Jan 2002, Hirschegg, Austria. pp.254-263
Conference papers in2p3-00011439v1

Enhancement of intermediate mass dimuons in nucleus nucleus collisions at the CERN SPS

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Conference on Ultrarelativistic Nucleus-Nucleus Collisions - QM2001 15, Jan 2001, Stony Brook, United States. pp.539c-542c
Conference papers in2p3-00013578v1

Charmonia suppression in p-A collisions at 450 GeV/c : new results from NA50

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
Quark Matter 2001 15, Jan 2001, Long Island, United States. pp.543c-546c
Conference papers in2p3-00010996v1

Latest results from Na50 on J/$\psi$ suppression in Pb-Pb collisions at 158 GeV/c

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Nuclear Physics Conference INPC 2001, Jul 2001, Berkeley, United States
Conference papers in2p3-00012213v1

J/$\psi,\psi'$ and DY production in proton nucleus collisions at 450 GeV incident energy at the NA50 experiment

M-C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Winter Meeting on Nuclear Physics 39, Jan 2001, Bormio, Italy. pp.304-315
Conference papers in2p3-00009530v1

Centrality behaviour of J/$\psi$ production in NA50

M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Symposium on Multiparticle Dynamics 31, Sep 2001, Datong, China. pp.127-131
Conference papers in2p3-00011890v1

Centrality states suppression and transverse momentum distribution in Pb-Pb collisions at the CERN SPS

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Symposium on Multiparticle Dynamics, ISMD2001, 2001, Datong, China
Conference papers in2p3-00011668v1

Recent results on J/$\psi$ from experiment NA50

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Conference on Ultrarelativistic Nucleus-Nucleus Collisions - QM2001 15, Jan 2001, Stony Brook, United States. pp.127c-134c
Conference papers in2p3-00013579v1

Charmonia states suppression and transverse momentum distribution in Pb-Pb collisions at the CERN SPS

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Workshop on QCD Theory and Experiment, 2001, Martina Franca, Italy
Conference papers in2p3-00011667v1

$\phi$ and $\rho + \omega$ vector-mesons produced in lead induced collisions

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Conference on Strange Quarks in Matter 6 SQM 2001, Sep 2001, Frankfurt, Germany. pp.1809-1817
Conference papers in2p3-00011669v1

The Npart dependence of the anomalous J/$\psi$ suppression in Pb-Pb collisions at the CERN SPS

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
Rencontres de Moriond ``QCD and Hadronic Interactions'' 36, Mar 2001, Les Arcs, France
Conference papers in2p3-00012201v1

Evidence for deconfinement from the J/$\psi$ suppression pattern in Pb-Pb collisions by the NA50 experiment

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Conference on Quark Confinement and the Hadron Spectrum 4, Jul 2000, Vienna, Austria. pp.357-360
Conference papers in2p3-00010878v1

Transverse flow in heavy ion interactions at the CERN SPS

P. Saturnini , M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Workshop on Multiparticle Production 9 New Frontiers in Soft Physics and Correlations on the Threshold of the Third Millennium, Jun 2000, Torino, Italy. pp.55-61
Conference papers in2p3-00009924v1

Production of the $\phi$ vector-meson in heavy ion collisions

C. Quintans , M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Conference on Strangeness in Quark Matter 5 Strangeness 2000, Jul 2000, Berkeley, United States. pp.405-412
Conference papers in2p3-00009787v1
Image document

Results on open charm from NA50

M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Conference on Strangeness in Quark Matter 5 Strangeness 2000, Jul 2000, Berkeley, United States. pp.677-684
Conference papers in2p3-00007901v1

Charmonium suppression in Pb-Pb collisions and quark-gluon deconfinement

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
Structure of the Nucleus at the Dawn of the Century, May 2000, Bologna, Italy. pp.91-97
Conference papers in2p3-00010877v1
Image document

Enhancement of intermediate mass dimuons in nucleus-nucleus collisions at the CERN-SPS

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
Rencontres du Vietnam 4, Jul 2000, Hanoi, Vietnam. pp.509-518
Conference papers in2p3-00011619v1

Searching for QGP: the J/$\psi$ probe in the NA50/CERN experiment

S. Ramos , M-C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
Intersections between Particle and Nuclear Physics 7, May 2000, Quebec, Canada. pp.341-345
Conference papers in2p3-00013554v1

NA50 results on Pb-Pb interactions at 158 GeV per nucleon

D. Jouan , M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
CRIS 2000 Catania Relativistic Ions Studies 3, May 2000, Acicastello, Italy. pp.157c-164c
Conference papers in2p3-00008203v1

Latest results from NA50 on J/$\psi$ suppression and multiplicity distributions in Pb-Pb collisions at 158GeV/c

S. Beole , M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Winter Meeting on Nuclear Physics 38, Jan 2000, Bormio, Italy. pp.231-240c
Conference papers in2p3-00005414v1

J/$\psi$ suppression in ultrarelativistic heavy-ion collisions

M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , M. Atayan
International Conference on Nuclear Reaction Mechanisms 9, Jun 2000, Varenna, Italy
Conference papers in2p3-00012153v1

$\phi$ production in Pb-Pb collisions at 158 GeV/c per nucleon in the NA50 experiment

L. Villatte , M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Winter Meeting on Nuclear Physics 38, Jan 2000, Bormio, Italy. pp.231-240
Conference papers in2p3-00005349v1
Image document

Results from the NA50 experiment on J/$\psi$ suppression in PbPb collisions at the CERN SPS

M. Monteno , M. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Workshop on Multiparticle Production ``New Frontiers in Soft Physics and Correlations on the Threshold of the Third Millenium 9, Jun 2000, Torino, Italy. pp.43-54
Conference papers in2p3-00009840v1

Charmonium production in Pb-Pb collisions at 158 A GeV

M.C. Abreu , B. Allessandro , C. Alexa , R. Arnaldi , J. Astruc
Indian Summer School on the Relativistic Heavy-Ion Physics 12, Aug 1999, Prague, Czech Republic. pp.114-119
Conference papers in2p3-00019692v1

Dimuon enhancement in nucleus-nucleus ultrarelativistic interactions

P. Bordalo , M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions 14 Quark matter'99, May 1999, Torino, Italy. pp.538c-541c
Conference papers in2p3-00007735v1

Study of J/$\Psi$ suppression in Pb-Pb collisions at the CERN SPS

A. de Falco , M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Europhysics Conference on High Energy Physics HEP-EPS 99, Jul 1999, Tampere, Finland. pp.959-961
Conference papers in2p3-00007902v1
Image document

Charmonium production in Pb-Pb collisions

N. de Marco , M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Conference on Particles and Nuclei. 15 PANIC '99, Jun 1999, Uppsala, Sweden. pp.765c-768c
Conference papers in2p3-00005338v1
Image document

Strangeness measurements in NA50 experiment with Pb projectiles

M.P. Comets , M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Conference on Particles and Nuclei. 15 PANIC '99, Jun 1999, Uppsala, Sweden. pp.721c-724c
Conference papers in2p3-00005337v1

The elliptic flow of neutral transverse energy in heavy ion interactions at SPS energies

P. Saturnini , M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions 14 Quark matter'99, May 1999, Torino, Italy. pp.345c-348c
Conference papers in2p3-00007734v1

$\phi \rho$ and $\omega$ production in Pb-Pb collisions at 158GeV/c$^2$ per nucleon

N. Willis , M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions 14 Quark matter'99, May 1999, Torino, Italy. pp.534c-547c
Conference papers in2p3-00007732v1

The elliptic flow of neutral transverse energy in heavy ion interactions at SPS energies

M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi , J. Astruc
QM'99 Quark Matter '99, International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, May 1999, Turin, Italy. pp.345c-348c
Conference papers in2p3-00010999v1

Latest results from NA50 on J/$\psi$ suppression in Pb-Pb collisions

C. Cicalo , M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions 14 Quark matter'99, May 1999, Torino, Italy. pp.93c-103c
Conference papers in2p3-00007736v1

Summary of J/$\psi$ suppression data and preliminary results on multiplciity distributions in Pb-Pb collisions from the NA50 experiment

D. Idzik , M.C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Symposium on Multiparticle Dynamics 29, Aug 1999, Providence,Rhod Island, United States
Conference papers in2p3-00012123v1

Fission of lead projectiles in Pb-nucleus collisions at the SPS

E. Vercellin , M C. Abreu , B. Alessandro , C. Alexa , R. Arnaldi
International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions 14 Quark matter'99, May 1999, Torino, Italy. pp.321c-324c
Conference papers in2p3-00007733v1