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The dependence of the anomalous $J/\psi$ suppression on the number of participant nucleons
The observation of an anomalous J/$\psi$ suppression in Pb-Pb collisions by the NA50 collaboration can be considered as the most striking indication for the deconfinement of quarks and gluons at SPS energies. In this letter, we determine the J/$\psi$ suppression pattern as a function of the forward...
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| Lenguaje: | eng |
| Publicado: |
2001
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0370-2693(01)01225-4 http://cds.cern.ch/record/523302 |
| _version_ | 1780897857747812352 |
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| author | Abreu, M C Alessandro, B Alexa, C Arnaldi, R Ataian, M R Baglin, C Baldit, A Bedjidian, Marc Beolè, S Boldea, V Bordalo, P Borges, G Bussière, A Capelli, L Castor, J I Castanier, C Chaurand, B Chevrot, I Cheynis, B Chiavassa, E Cicalò, C Claudino, T Comets, M P Constans, N Constantinescu, S Cortese, P De Marco, N De Falco, A Dellacasa, G Devaux, A Dita, S Drapier, O Ducroux, L Espagnon, B Fargeix, J Force, P Gallio, M Gavrilov, Yu K Gerschel, C Giubellino, P Golubeva, M B Gonin, M Grigorian, A A Grigorian, S Grossiord, J Y Guber, F F Guichard, A Gulkanian, H R Hakobyan, R S Haroutunian, R Idzik, M Jouan, D Karavitcheva, T L Kluberg, L Kurepin, A B Le Bornec, Y Lourenço, C Macciotta, P MacCormick, M Marzari-Chiesa, A Masera, M Masoni, A Monteno, M Musso, A Petiau, P Piccotti, A Pizzi, J R Prino, F Puddu, G Quintans, C Ramos, S Ramello, L Rato-Mendes, P Riccati, L Romana, A Santos, H Saturnini, P Scalas, E Scomparin, E Serci, S Shahoyan, R Sigaudo, F Silva, S Sitta, M Sonderegger, P Tarrago, X Topilskaya, N S Usai, G L Vercellin, Ermanno Villatte, L Willis, N |
| author_facet | Abreu, M C Alessandro, B Alexa, C Arnaldi, R Ataian, M R Baglin, C Baldit, A Bedjidian, Marc Beolè, S Boldea, V Bordalo, P Borges, G Bussière, A Capelli, L Castor, J I Castanier, C Chaurand, B Chevrot, I Cheynis, B Chiavassa, E Cicalò, C Claudino, T Comets, M P Constans, N Constantinescu, S Cortese, P De Marco, N De Falco, A Dellacasa, G Devaux, A Dita, S Drapier, O Ducroux, L Espagnon, B Fargeix, J Force, P Gallio, M Gavrilov, Yu K Gerschel, C Giubellino, P Golubeva, M B Gonin, M Grigorian, A A Grigorian, S Grossiord, J Y Guber, F F Guichard, A Gulkanian, H R Hakobyan, R S Haroutunian, R Idzik, M Jouan, D Karavitcheva, T L Kluberg, L Kurepin, A B Le Bornec, Y Lourenço, C Macciotta, P MacCormick, M Marzari-Chiesa, A Masera, M Masoni, A Monteno, M Musso, A Petiau, P Piccotti, A Pizzi, J R Prino, F Puddu, G Quintans, C Ramos, S Ramello, L Rato-Mendes, P Riccati, L Romana, A Santos, H Saturnini, P Scalas, E Scomparin, E Serci, S Shahoyan, R Sigaudo, F Silva, S Sitta, M Sonderegger, P Tarrago, X Topilskaya, N S Usai, G L Vercellin, Ermanno Villatte, L Willis, N |
| author_sort | Abreu, M C |
| collection | CERN |
| description | The observation of an anomalous J/$\psi$ suppression in Pb-Pb collisions by the NA50 collaboration can be considered as the most striking indication for the deconfinement of quarks and gluons at SPS energies. In this letter, we determine the J/$\psi$ suppression pattern as a function of the forward hadronic energy $E_{ZDC}$ measured in a Zero Degree Calorimeter (ZDC). The direct connection between $E_{ZDC}$ and the geometry of the collision allows us to calculate, within a Glauber approach, the precise relation between the number of participant nucleons $N_{part}$ and $E_{ZDC}$. Then, we check if the experimental data can be better explained by a sudden or a smooth onset of the anomalous J/$\psi$ suppression as a function of the number of participants. |
| id | cern-523302 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2001 |
| record_format | invenio |
| spelling | cern-5233022019-09-30T06:29:59Zdoi:10.1016/S0370-2693(01)01225-4http://cds.cern.ch/record/523302engAbreu, M CAlessandro, BAlexa, CArnaldi, RAtaian, M RBaglin, CBaldit, ABedjidian, MarcBeolè, SBoldea, VBordalo, PBorges, GBussière, ACapelli, LCastor, J ICastanier, CChaurand, BChevrot, ICheynis, BChiavassa, ECicalò, CClaudino, TComets, M PConstans, NConstantinescu, SCortese, PDe Marco, NDe Falco, ADellacasa, GDevaux, ADita, SDrapier, ODucroux, LEspagnon, BFargeix, JForce, PGallio, MGavrilov, Yu KGerschel, CGiubellino, PGolubeva, M BGonin, MGrigorian, A AGrigorian, SGrossiord, J YGuber, F FGuichard, AGulkanian, H RHakobyan, R SHaroutunian, RIdzik, MJouan, DKaravitcheva, T LKluberg, LKurepin, A BLe Bornec, YLourenço, CMacciotta, PMacCormick, MMarzari-Chiesa, AMasera, MMasoni, AMonteno, MMusso, APetiau, PPiccotti, APizzi, J RPrino, FPuddu, GQuintans, CRamos, SRamello, LRato-Mendes, PRiccati, LRomana, ASantos, HSaturnini, PScalas, EScomparin, ESerci, SShahoyan, RSigaudo, FSilva, SSitta, MSonderegger, PTarrago, XTopilskaya, N SUsai, G LVercellin, ErmannoVillatte, LWillis, NThe dependence of the anomalous $J/\psi$ suppression on the number of participant nucleonsParticle Physics - ExperimentThe observation of an anomalous J/$\psi$ suppression in Pb-Pb collisions by the NA50 collaboration can be considered as the most striking indication for the deconfinement of quarks and gluons at SPS energies. In this letter, we determine the J/$\psi$ suppression pattern as a function of the forward hadronic energy $E_{ZDC}$ measured in a Zero Degree Calorimeter (ZDC). The direct connection between $E_{ZDC}$ and the geometry of the collision allows us to calculate, within a Glauber approach, the precise relation between the number of participant nucleons $N_{part}$ and $E_{ZDC}$. Then, we check if the experimental data can be better explained by a sudden or a smooth onset of the anomalous J/$\psi$ suppression as a function of the number of participants.CERN-EP-2001-069oai:cds.cern.ch:5233022001-10-11 |
| spellingShingle | Particle Physics - Experiment Abreu, M C Alessandro, B Alexa, C Arnaldi, R Ataian, M R Baglin, C Baldit, A Bedjidian, Marc Beolè, S Boldea, V Bordalo, P Borges, G Bussière, A Capelli, L Castor, J I Castanier, C Chaurand, B Chevrot, I Cheynis, B Chiavassa, E Cicalò, C Claudino, T Comets, M P Constans, N Constantinescu, S Cortese, P De Marco, N De Falco, A Dellacasa, G Devaux, A Dita, S Drapier, O Ducroux, L Espagnon, B Fargeix, J Force, P Gallio, M Gavrilov, Yu K Gerschel, C Giubellino, P Golubeva, M B Gonin, M Grigorian, A A Grigorian, S Grossiord, J Y Guber, F F Guichard, A Gulkanian, H R Hakobyan, R S Haroutunian, R Idzik, M Jouan, D Karavitcheva, T L Kluberg, L Kurepin, A B Le Bornec, Y Lourenço, C Macciotta, P MacCormick, M Marzari-Chiesa, A Masera, M Masoni, A Monteno, M Musso, A Petiau, P Piccotti, A Pizzi, J R Prino, F Puddu, G Quintans, C Ramos, S Ramello, L Rato-Mendes, P Riccati, L Romana, A Santos, H Saturnini, P Scalas, E Scomparin, E Serci, S Shahoyan, R Sigaudo, F Silva, S Sitta, M Sonderegger, P Tarrago, X Topilskaya, N S Usai, G L Vercellin, Ermanno Villatte, L Willis, N The dependence of the anomalous $J/\psi$ suppression on the number of participant nucleons |
| title | The dependence of the anomalous $J/\psi$ suppression on the number of participant nucleons |
| title_full | The dependence of the anomalous $J/\psi$ suppression on the number of participant nucleons |
| title_fullStr | The dependence of the anomalous $J/\psi$ suppression on the number of participant nucleons |
| title_full_unstemmed | The dependence of the anomalous $J/\psi$ suppression on the number of participant nucleons |
| title_short | The dependence of the anomalous $J/\psi$ suppression on the number of participant nucleons |
| title_sort | dependence of the anomalous $j/\psi$ suppression on the number of participant nucleons |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/S0370-2693(01)01225-4 http://cds.cern.ch/record/523302 |
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