Dimuon and charm production in nucleus-nucleus collisions at the CERN-SPS: The NA38 and NA50 collaborations

M. C. Abreu; B. Alessandro; C. Alexa; R. Arnaldi; J. Astruc; M. Atayan; C. Baglin; A. Baldit; M. Bedjidian; F. Bellaiche; S. Beolè; V. Boldea; P. Bordalo; A. Borhani; A. Bussière; L. Capelli; V. Capony; L. Casagrande; J. Castor; T. Chambon; B. Chaurand; I. Chevrot; B. Cheynis; E. Chiavassa; C. Cicalò; T. Claudino; M. P. Comets; N. Constans; S. Constantinescu; J. Cruz; A. De Falco; N. De Marco; G. Dellacasa; A. Devaux; S. Dita; O. Drapier; L. Ducroux; B. Espagnon; J. Fargeix; F. Fleuret; P. Force; M. Gallio; Y. K. Gavrilov; C. Gerschel; P. Giubellino; M. B. Golubeva; M. Gonin; A. A. Grigorian; J. Y. Grossiord; F. F. Guber; A. Guichard; H. Gulkanyan; R. Hakobyan; R. Haroutunian; M. Idzik; D. Jouan; T. L. Karavitcheva; L. Kluberg; A. B. Kurepin; Y. Le Bornec; C. Lourenço; P. Macciotta; M. Mac Cormick; A. Marzari-Chiesa; M. Masera; A. Masoni; S. Mehrabyan; M. Monteno; S. Mourgues; A. Musso; F. Ohlsson-Malek; P. Petiau; A. Piccotti; J. R. Pizzi; G. Puddu; C. Quintans; C. Racca; L. Ramello; S. Ramos; P. Rato-Mendes; L. Riccati; A. Romana; I. Ropotar; P. Saturnini; E. Scomparin; S. Serci; R. Shahoyan; S. Silva; M. Sitta; C. Soave; P. Sonderegger; X. Tarrago; N. S. Topilskaya; G. L. Usai; E. Vercellin; L. Villatte; N. Willis

doi:10.1007/s100520000373

Dimuon and charm production in nucleus-nucleus collisions at the CERN-SPS: The NA38 and NA50 collaborations

M. C. Abreu, B. Alessandro, C. Alexa, R. Arnaldi, J. Astruc, M. Atayan, C. Baglin, A. Baldit, M. Bedjidian, F. Bellaiche, S. Beolè, V. Boldea, P. Bordalo, A. Borhani, A. Bussière, L. Capelli, V. Capony, L. Casagrande, J. Castor, T. ChambonB. Chaurand, I. Chevrot, B. Cheynis, E. Chiavassa, C. Cicalò, T. Claudino, M. P. Comets, N. Constans, S. Constantinescu, J. Cruz, A. De Falco, N. De Marco, G. Dellacasa, A. Devaux, S. Dita, O. Drapier, L. Ducroux, B. Espagnon, J. Fargeix, F. Fleuret, P. Force, M. Gallio, Y. K. Gavrilov, C. Gerschel, P. Giubellino, M. B. Golubeva, M. Gonin, A. A. Grigorian, J. Y. Grossiord, F. F. Guber, A. Guichard, H. Gulkanyan, R. Hakobyan, R. Haroutunian, M. Idzik, D. Jouan, T. L. Karavitcheva, L. Kluberg, A. B. Kurepin, Y. Le Bornec, C. Lourenço, P. Macciotta, M. Mac Cormick, A. Marzari-Chiesa, M. Masera, A. Masoni, S. Mehrabyan, M. Monteno, S. Mourgues, A. Musso, F. Ohlsson-Malek, P. Petiau, A. Piccotti, J. R. Pizzi, G. Puddu, C. Quintans, C. Racca, L. Ramello, S. Ramos, P. Rato-Mendes, L. Riccati, A. Romana, I. Ropotar, P. Saturnini, E. Scomparin, S. Serci, R. Shahoyan, S. Silva, M. Sitta, C. Soave, P. Sonderegger, X. Tarrago, N. S. Topilskaya, G. L. Usai, E. Vercellin, L. Villatte, N. Willis

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Abstract

Muon pair production in p-A, S-U and Pb-Pb collisions has been studied by the NA38 and NA50 collaborations at the CERN SPS. In this paper we present an analysis of the dimuon invariant mass region between the φ and the J/ψ. In p-A collisions we find that, after the subtraction of the combinatorial background due to π and K decays, the superposition of dimuons from semi-leptonic decays of D mesons and from the Drell-Yan process reproduces well the measured mass and transverse momentum spectra. The yield of open charm dimuons required to fit our data leads to a charm production cross section in good agreement with previous measurements. A linear extrapolation of the p-A sources with the product of the mass numbers of the projectile and target nuclei, A × B, underestimates the dimuon yield measured in S-U and Pb-Pb collisions. The excess increases with the number of participant nucleons, and the ratio between the observed dimuon yield and the expected sources reaches a factor 2 for central Pb-Pb interactions. The kinematical distributions of the measured dimuon excess are compatible with those expected from the open charm contribution.

Original language	English
Pages (from-to)	443-455
Number of pages	13
Journal	European Physical Journal C
Volume	14
Issue number	3
DOIs	https://doi.org/10.1007/s100520000373
Publication status	Published - 1 Jan 2000

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Abreu, M. C., Alessandro, B., Alexa, C., Arnaldi, R., Astruc, J., Atayan, M., Baglin, C., Baldit, A., Bedjidian, M., Bellaiche, F., Beolè, S., Boldea, V., Bordalo, P., Borhani, A., Bussière, A., Capelli, L., Capony, V., Casagrande, L., Castor, J., ... Willis, N. (2000). Dimuon and charm production in nucleus-nucleus collisions at the CERN-SPS: The NA38 and NA50 collaborations. European Physical Journal C, 14(3), 443-455. https://doi.org/10.1007/s100520000373

@article{eccd28d9acbd48c093ba99d2ec3889c4,

title = "Dimuon and charm production in nucleus-nucleus collisions at the CERN-SPS: The NA38 and NA50 collaborations",

abstract = "Muon pair production in p-A, S-U and Pb-Pb collisions has been studied by the NA38 and NA50 collaborations at the CERN SPS. In this paper we present an analysis of the dimuon invariant mass region between the φ and the J/ψ. In p-A collisions we find that, after the subtraction of the combinatorial background due to π and K decays, the superposition of dimuons from semi-leptonic decays of D mesons and from the Drell-Yan process reproduces well the measured mass and transverse momentum spectra. The yield of open charm dimuons required to fit our data leads to a charm production cross section in good agreement with previous measurements. A linear extrapolation of the p-A sources with the product of the mass numbers of the projectile and target nuclei, A × B, underestimates the dimuon yield measured in S-U and Pb-Pb collisions. The excess increases with the number of participant nucleons, and the ratio between the observed dimuon yield and the expected sources reaches a factor 2 for central Pb-Pb interactions. The kinematical distributions of the measured dimuon excess are compatible with those expected from the open charm contribution.",

author = "Abreu, \{M. C.\} and B. Alessandro and C. Alexa and R. Arnaldi and J. Astruc and M. Atayan and C. Baglin and A. Baldit and M. Bedjidian and F. Bellaiche and S. Beol{\`e} and V. Boldea and P. Bordalo and A. Borhani and A. Bussi{\`e}re and L. Capelli and V. Capony and L. Casagrande and J. Castor and T. Chambon and B. Chaurand and I. Chevrot and B. Cheynis and E. Chiavassa and C. Cical{\`o} and T. Claudino and Comets, \{M. P.\} and N. Constans and S. Constantinescu and J. Cruz and \{De Falco\}, A. and \{De Marco\}, N. and G. Dellacasa and A. Devaux and S. Dita and O. Drapier and L. Ducroux and B. Espagnon and J. Fargeix and F. Fleuret and P. Force and M. Gallio and Gavrilov, \{Y. K.\} and C. Gerschel and P. Giubellino and Golubeva, \{M. B.\} and M. Gonin and Grigorian, \{A. A.\} and Grossiord, \{J. Y.\} and Guber, \{F. F.\} and A. Guichard and H. Gulkanyan and R. Hakobyan and R. Haroutunian and M. Idzik and D. Jouan and Karavitcheva, \{T. L.\} and L. Kluberg and Kurepin, \{A. B.\} and \{Le Bornec\}, Y. and C. Louren{\c c}o and P. Macciotta and \{Mac Cormick\}, M. and A. Marzari-Chiesa and M. Masera and A. Masoni and S. Mehrabyan and M. Monteno and S. Mourgues and A. Musso and F. Ohlsson-Malek and P. Petiau and A. Piccotti and Pizzi, \{J. R.\} and G. Puddu and C. Quintans and C. Racca and L. Ramello and S. Ramos and P. Rato-Mendes and L. Riccati and A. Romana and I. Ropotar and P. Saturnini and E. Scomparin and S. Serci and R. Shahoyan and S. Silva and M. Sitta and C. Soave and P. Sonderegger and X. Tarrago and Topilskaya, \{N. S.\} and Usai, \{G. L.\} and E. Vercellin and L. Villatte and N. Willis",

year = "2000",

month = jan,

day = "1",

doi = "10.1007/s100520000373",

language = "English",

volume = "14",

pages = "443--455",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "3",

}

Abreu, MC, Alessandro, B, Alexa, C, Arnaldi, R, Astruc, J, Atayan, M, Baglin, C, Baldit, A, Bedjidian, M, Bellaiche, F, Beolè, S, Boldea, V, Bordalo, P, Borhani, A, Bussière, A, Capelli, L, Capony, V, Casagrande, L, Castor, J, Chambon, T, Chaurand, B, Chevrot, I, Cheynis, B, Chiavassa, E, Cicalò, C, Claudino, T, Comets, MP, Constans, N, Constantinescu, S, Cruz, J, De Falco, A, De Marco, N, Dellacasa, G, Devaux, A, Dita, S, Drapier, O, Ducroux, L, Espagnon, B, Fargeix, J, Fleuret, F, Force, P, Gallio, M, Gavrilov, YK, Gerschel, C, Giubellino, P, Golubeva, MB, Gonin, M, Grigorian, AA, Grossiord, JY, Guber, FF, Guichard, A, Gulkanyan, H, Hakobyan, R, Haroutunian, R, Idzik, M, Jouan, D, Karavitcheva, TL, Kluberg, L, Kurepin, AB, Le Bornec, Y, Lourenço, C, Macciotta, P, Mac Cormick, M, Marzari-Chiesa, A, Masera, M, Masoni, A, Mehrabyan, S, Monteno, M, Mourgues, S, Musso, A, Ohlsson-Malek, F, Petiau, P, Piccotti, A, Pizzi, JR, Puddu, G, Quintans, C, Racca, C, Ramello, L, Ramos, S, 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, NS, Usai, GL, Vercellin, E, Villatte, L & Willis, N 2000, 'Dimuon and charm production in nucleus-nucleus collisions at the CERN-SPS: The NA38 and NA50 collaborations', European Physical Journal C, vol. 14, no. 3, pp. 443-455. https://doi.org/10.1007/s100520000373

TY - JOUR

T1 - Dimuon and charm production in nucleus-nucleus collisions at the CERN-SPS

T2 - The NA38 and NA50 collaborations

AU - Abreu, M. C.

AU - Alessandro, B.

AU - Alexa, C.

AU - Arnaldi, R.

AU - Astruc, J.

AU - Atayan, M.

AU - Baglin, C.

AU - Baldit, A.

AU - Bedjidian, M.

AU - Bellaiche, F.

AU - Beolè, S.

AU - Boldea, V.

AU - Bordalo, P.

AU - Borhani, A.

AU - Bussière, A.

AU - Capelli, L.

AU - Capony, V.

AU - Casagrande, L.

AU - Castor, J.

AU - Chambon, T.

AU - Chaurand, B.

AU - Chevrot, I.

AU - Cheynis, B.

AU - Chiavassa, E.

AU - Cicalò, C.

AU - Claudino, T.

AU - Comets, M. P.

AU - Constans, N.

AU - Constantinescu, S.

AU - Cruz, J.

AU - De Falco, A.

AU - De Marco, N.

AU - Dellacasa, G.

AU - Devaux, A.

AU - Dita, S.

AU - Drapier, O.

AU - Ducroux, L.

AU - Espagnon, B.

AU - Fargeix, J.

AU - Fleuret, F.

AU - Force, P.

AU - Gallio, M.

AU - Gavrilov, Y. K.

AU - Gerschel, C.

AU - Giubellino, P.

AU - Golubeva, M. B.

AU - Gonin, M.

AU - Grigorian, A. A.

AU - Grossiord, J. Y.

AU - Guber, F. F.

AU - Guichard, A.

AU - Gulkanyan, H.

AU - Hakobyan, R.

AU - Haroutunian, R.

AU - Idzik, M.

AU - Jouan, D.

AU - Karavitcheva, T. L.

AU - Kluberg, L.

AU - Kurepin, A. B.

AU - Le Bornec, Y.

AU - Lourenço, C.

AU - Macciotta, P.

AU - Mac Cormick, M.

AU - Marzari-Chiesa, A.

AU - Masera, M.

AU - Masoni, A.

AU - Mehrabyan, S.

AU - Monteno, M.

AU - Mourgues, S.

AU - Musso, A.

AU - Ohlsson-Malek, F.

AU - Petiau, P.

AU - Piccotti, A.

AU - Pizzi, J. R.

AU - Puddu, G.

AU - Quintans, C.

AU - Racca, C.

AU - Ramello, L.

AU - Ramos, S.

AU - Rato-Mendes, P.

AU - Riccati, L.

AU - Romana, A.

AU - Ropotar, I.

AU - Saturnini, P.

AU - Scomparin, E.

AU - Serci, S.

AU - Shahoyan, R.

AU - Silva, S.

AU - Sitta, M.

AU - Soave, C.

AU - Sonderegger, P.

AU - Tarrago, X.

AU - Topilskaya, N. S.

AU - Usai, G. L.

AU - Vercellin, E.

AU - Villatte, L.

AU - Willis, N.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - Muon pair production in p-A, S-U and Pb-Pb collisions has been studied by the NA38 and NA50 collaborations at the CERN SPS. In this paper we present an analysis of the dimuon invariant mass region between the φ and the J/ψ. In p-A collisions we find that, after the subtraction of the combinatorial background due to π and K decays, the superposition of dimuons from semi-leptonic decays of D mesons and from the Drell-Yan process reproduces well the measured mass and transverse momentum spectra. The yield of open charm dimuons required to fit our data leads to a charm production cross section in good agreement with previous measurements. A linear extrapolation of the p-A sources with the product of the mass numbers of the projectile and target nuclei, A × B, underestimates the dimuon yield measured in S-U and Pb-Pb collisions. The excess increases with the number of participant nucleons, and the ratio between the observed dimuon yield and the expected sources reaches a factor 2 for central Pb-Pb interactions. The kinematical distributions of the measured dimuon excess are compatible with those expected from the open charm contribution.

AB - Muon pair production in p-A, S-U and Pb-Pb collisions has been studied by the NA38 and NA50 collaborations at the CERN SPS. In this paper we present an analysis of the dimuon invariant mass region between the φ and the J/ψ. In p-A collisions we find that, after the subtraction of the combinatorial background due to π and K decays, the superposition of dimuons from semi-leptonic decays of D mesons and from the Drell-Yan process reproduces well the measured mass and transverse momentum spectra. The yield of open charm dimuons required to fit our data leads to a charm production cross section in good agreement with previous measurements. A linear extrapolation of the p-A sources with the product of the mass numbers of the projectile and target nuclei, A × B, underestimates the dimuon yield measured in S-U and Pb-Pb collisions. The excess increases with the number of participant nucleons, and the ratio between the observed dimuon yield and the expected sources reaches a factor 2 for central Pb-Pb interactions. The kinematical distributions of the measured dimuon excess are compatible with those expected from the open charm contribution.

U2 - 10.1007/s100520000373

DO - 10.1007/s100520000373

M3 - Article

AN - SCOPUS:0038831425

SN - 1434-6044

VL - 14

SP - 443

EP - 455

JO - European Physical Journal C

JF - European Physical Journal C

IS - 3

ER -

Dimuon and charm production in nucleus-nucleus collisions at the CERN-SPS: The NA38 and NA50 collaborations

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