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Results on open charm from NA50
The NA50 and NA38 experiments have studied muon pair production in p- A and nucleus-nucleus collisions at the CERN SPS. Results on dimuons in the invariant mass region between the $\phi$ and the J/$\psi$ masses (IMR) are presented. The standard sources of muon pairs in the IMR are the Drell-Yan proc...
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| Lenguaje: | eng |
| Publicado: |
2001
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/0954-3899/27/3/353 http://cds.cern.ch/record/513312 |
| _version_ | 1780897571937452032 |
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| author | Masera, M Abreu, M C Alessandro, B Alexa, C Arnaldi, R Ataian, M R Baglin, C Baldit, A Bedjidian, Marc Beolè, S Boldea, V Bordalo, P Bussière, A Capelli, L Casagrande, L Castor, J I Chambon, T Chaurand, B Chevrot, I Cheynis, B Chiavassa, E Cicalò, C Claudino, T Comets, M P Constans, N Constantinescu, S De Falco, A De Marco, N 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 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 Mehrabyan, S S 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 Ropotar, I Saturnini, P Scomparin, E Serci, S Shahoyan, R Silva, S Sitta, M Soave, C Sonderegger, P Tarrago, X Topilskaya, N S Usai, G L Vercellin, Ermanno Villatte, L Willis, N |
| author_facet | Masera, M Abreu, M C Alessandro, B Alexa, C Arnaldi, R Ataian, M R Baglin, C Baldit, A Bedjidian, Marc Beolè, S Boldea, V Bordalo, P Bussière, A Capelli, L Casagrande, L Castor, J I Chambon, T Chaurand, B Chevrot, I Cheynis, B Chiavassa, E Cicalò, C Claudino, T Comets, M P Constans, N Constantinescu, S De Falco, A De Marco, N 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 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 Mehrabyan, S S 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 Ropotar, I Saturnini, P Scomparin, E Serci, S Shahoyan, R Silva, S Sitta, M Soave, C Sonderegger, P Tarrago, X Topilskaya, N S Usai, G L Vercellin, Ermanno Villatte, L Willis, N |
| author_sort | Masera, M |
| collection | CERN |
| description | The NA50 and NA38 experiments have studied muon pair production in p- A and nucleus-nucleus collisions at the CERN SPS. Results on dimuons in the invariant mass region between the $\phi$ and the J/$\psi$ masses (IMR) are presented. The standard sources of muon pairs in the IMR are the Drell-Yan process and the semileptonic decay of charmed mesons. A new four-dimensional unfolding method is applied to the data. The p-A results are well described in terms of these known sources, which, in contrast, fail to explain nucleus-nucleus data: an extra yield of muon pairs is observed. Although this excess is compatible with an enhanced production of charmed hadrons, other possible sources cannot be excluded. In particular, a comparison between data and predictions from a theoretical model which calculates the production of thermal dimuons is presented in this paper. (13 refs). |
| id | cern-513312 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2001 |
| record_format | invenio |
| spelling | cern-5133122019-09-30T06:29:59Zdoi:10.1088/0954-3899/27/3/353http://cds.cern.ch/record/513312engMasera, MAbreu, M CAlessandro, BAlexa, CArnaldi, RAtaian, M RBaglin, CBaldit, ABedjidian, MarcBeolè, SBoldea, VBordalo, PBussière, ACapelli, LCasagrande, LCastor, J IChambon, TChaurand, BChevrot, ICheynis, BChiavassa, ECicalò, CClaudino, TComets, M PConstans, NConstantinescu, SDe Falco, ADe Marco, NDellacasa, GDevaux, ADita, SDrapier, ODucroux, LEspagnon, BFargeix, JForce, PGallio, MGavrilov, Yu KGerschel, CGiubellino, PGolubeva, M BGonin, MGrigorian, A AGrossiord, 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, AMehrabyan, S SMonteno, MMusso, APetiau, PPiccotti, APizzi, J RPrino, FPuddu, GQuintans, CRamos, SRamello, LRato-Mendes, PRiccati, LRomana, ARopotar, ISaturnini, PScomparin, ESerci, SShahoyan, RSilva, SSitta, MSoave, CSonderegger, PTarrago, XTopilskaya, N SUsai, G LVercellin, ErmannoVillatte, LWillis, NResults on open charm from NA50Particle Physics - ExperimentThe NA50 and NA38 experiments have studied muon pair production in p- A and nucleus-nucleus collisions at the CERN SPS. Results on dimuons in the invariant mass region between the $\phi$ and the J/$\psi$ masses (IMR) are presented. The standard sources of muon pairs in the IMR are the Drell-Yan process and the semileptonic decay of charmed mesons. A new four-dimensional unfolding method is applied to the data. The p-A results are well described in terms of these known sources, which, in contrast, fail to explain nucleus-nucleus data: an extra yield of muon pairs is observed. Although this excess is compatible with an enhanced production of charmed hadrons, other possible sources cannot be excluded. In particular, a comparison between data and predictions from a theoretical model which calculates the production of thermal dimuons is presented in this paper. (13 refs).oai:cds.cern.ch:5133122001 |
| spellingShingle | Particle Physics - Experiment Masera, M Abreu, M C Alessandro, B Alexa, C Arnaldi, R Ataian, M R Baglin, C Baldit, A Bedjidian, Marc Beolè, S Boldea, V Bordalo, P Bussière, A Capelli, L Casagrande, L Castor, J I Chambon, T Chaurand, B Chevrot, I Cheynis, B Chiavassa, E Cicalò, C Claudino, T Comets, M P Constans, N Constantinescu, S De Falco, A De Marco, N 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 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 Mehrabyan, S S 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 Ropotar, I Saturnini, P Scomparin, E Serci, S Shahoyan, R Silva, S Sitta, M Soave, C Sonderegger, P Tarrago, X Topilskaya, N S Usai, G L Vercellin, Ermanno Villatte, L Willis, N Results on open charm from NA50 |
| title | Results on open charm from NA50 |
| title_full | Results on open charm from NA50 |
| title_fullStr | Results on open charm from NA50 |
| title_full_unstemmed | Results on open charm from NA50 |
| title_short | Results on open charm from NA50 |
| title_sort | results on open charm from na50 |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1088/0954-3899/27/3/353 http://cds.cern.ch/record/513312 |
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