Observation of fission in Pb-Pb interactions at [Formula Presented]

M. C. Abreu; B. Alessandro; C. Alexa; R. Arnaldi; J. Astruc; M. Atayan; C. Baglin; A. Baldit; L. Bardi; M. Bedjidian; F. Bellaiche; S. Beolè; V. Boldea; P. Bordalo; A. Bussière; L. Casagrande; J. Castor; T. Chambon; B. Chaurand; I. Chevrot; B. Cheynis; E. Chiavassa; C. Cicalò; M. P. Comets; S. Constantinescu; P. Cortese; J. Cruz; A. DeFalco; N. DeMarco; G. Dellacasa; A. Devaux; S. Dita; O. Drapier; 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; G. Landaud; Y. LeBornec; C. Lourenço; L. Luquin; M. MacCormick; M. P. Macciotta; 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; W. Prado da Silva; 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; C. Vale; E. Vercellin; N. Willis

doi:10.1103/PhysRevC.59.876

Observation of fission in Pb-Pb interactions at [Formula Presented]

M. C. Abreu, B. Alessandro, C. Alexa, R. Arnaldi, J. Astruc, M. Atayan, C. Baglin, A. Baldit, L. Bardi, M. Bedjidian, F. Bellaiche, S. Beolè, V. Boldea, P. Bordalo, A. Bussière, L. Casagrande, J. Castor, T. Chambon, B. Chaurand, I. ChevrotB. Cheynis, E. Chiavassa, C. Cicalò, M. P. Comets, S. Constantinescu, P. Cortese, J. Cruz, A. DeFalco, N. DeMarco, G. Dellacasa, A. Devaux, S. Dita, O. Drapier, 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, G. Landaud, Y. LeBornec, C. Lourenço, L. Luquin, M. MacCormick, M. P. Macciotta, 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, W. Prado da Silva, 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, C. Vale, E. Vercellin, N. Willis

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

The NA50 experiment at the CERN SPS has been equipped with a Cerenkov quartz detector to measure the charge of projectilelike fragments emitted in interactions of the lead beam of 158A GeV with a 12 mm thick lead target. A clear fission peak has been observed in the light output distribution of the fragment detector and the measured number of fission events per incident Pb ion is (1.26 +/- 0.16) x 10(-2). The information provided by the NA50 zero-degree calorimeter has allowed us to check that fission occurs in extremely peripheral collisions. To provide the first information about the fission mechanism, the expected yield of electromagnetic fission events in our experimental conditions has been computed: it turns out to be about 40% smaller than the observed one. The approximations necessarily made in our calculation as well as the contribution due to fission induced by nuclear interaction could account for such a difference. [S0556-2813(99)05501-6].

Lingua originale	Inglese
pagine (da-a)	876-883
Numero di pagine	8
Rivista	Physical Review C - Nuclear Physics
Volume	59
Numero di pubblicazione	2
DOI	https://doi.org/10.1103/PhysRevC.59.876
Stato di pubblicazione	Pubblicato - 1999
Pubblicato esternamente	Sì

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10.1103/PhysRevC.59.876

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Abreu, M. C., Alessandro, B., Alexa, C., Arnaldi, R., Astruc, J., Atayan, M., Baglin, C., Baldit, A., Bardi, L., Bedjidian, M., Bellaiche, F., Beolè, S., Boldea, V., Bordalo, P., Bussière, A., Casagrande, L., Castor, J., Chambon, T., Chaurand, B., ... Willis, N. (1999). Observation of fission in Pb-Pb interactions at [Formula Presented]. Physical Review C - Nuclear Physics, 59(2), 876-883. https://doi.org/10.1103/PhysRevC.59.876

@article{e0a3e1801d34472b8fcfda39d562532b,

title = "Observation of fission in Pb-Pb interactions at [Formula Presented]",

abstract = "The NA50 experiment at the CERN SPS has been equipped with a Cerenkov quartz detector to measure the charge of projectilelike fragments emitted in interactions of the lead beam of [Formula Presented] with a 12 mm thick lead target. A clear fission peak has been observed in the light output distribution of the fragment detector and the measured number of fission events per incident Pb ion is [Formula Presented] The information provided by the NA50 zero-degree calorimeter has allowed us to check that fission occurs in extremely peripheral collisions. To provide the first information about the fission mechanism, the expected yield of electromagnetic fission events in our experimental conditions has been computed: it turns out to be about [Formula Presented] smaller than the observed one. The approximations necessarily made in our calculation as well as the contribution due to fission induced by nuclear interaction could account for such a difference.",

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 L. Bardi and M. Bedjidian and F. Bellaiche and S. Beol{\`e} and V. Boldea and P. Bordalo and A. Bussi{\`e}re 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 Comets, \{M. P.\} and S. Constantinescu and P. Cortese and J. Cruz and A. DeFalco and N. DeMarco and G. Dellacasa and A. Devaux and S. Dita and O. Drapier 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 G. Landaud and Y. LeBornec and C. Louren{\c c}o and L. Luquin and M. MacCormick and Macciotta, \{M. P.\} 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 \{Prado da Silva\}, W. 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 C. Vale and E. Vercellin and N. Willis",

year = "1999",

doi = "10.1103/PhysRevC.59.876",

language = "English",

volume = "59",

pages = "876--883",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "2",

}

Abreu, MC, Alessandro, B, Alexa, C, Arnaldi, R, Astruc, J, Atayan, M, Baglin, C, Baldit, A, Bardi, L, Bedjidian, M, Bellaiche, F, Beolè, S, Boldea, V, Bordalo, P, Bussière, A, Casagrande, L, Castor, J, Chambon, T, Chaurand, B, Chevrot, I, Cheynis, B, Chiavassa, E, Cicalò, C, Comets, MP, Constantinescu, S, Cortese, P, Cruz, J, DeFalco, A, DeMarco, N, Dellacasa, G, Devaux, A, Dita, S, Drapier, O, 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, Landaud, G, LeBornec, Y, Lourenço, C, Luquin, L, MacCormick, M, Macciotta, MP, Marzari-Chiesa, A, Masera, M, Masoni, A, Mehrabyan, S, Monteno, M, Mourgues, S, Musso, A, Ohlsson-Malek, F, Petiau, P, Piccotti, A, Pizzi, JR, Prado da Silva, W, 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, Vale, C, Vercellin, E & Willis, N 1999, 'Observation of fission in Pb-Pb interactions at [Formula Presented]', Physical Review C - Nuclear Physics, vol. 59, n. 2, pagg. 876-883. https://doi.org/10.1103/PhysRevC.59.876

TY - JOUR

T1 - Observation of fission in Pb-Pb interactions at [Formula Presented]

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 - Bardi, L.

AU - Bedjidian, M.

AU - Bellaiche, F.

AU - Beolè, S.

AU - Boldea, V.

AU - Bordalo, P.

AU - Bussière, A.

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 - Comets, M. P.

AU - Constantinescu, S.

AU - Cortese, P.

AU - Cruz, J.

AU - DeFalco, A.

AU - DeMarco, N.

AU - Dellacasa, G.

AU - Devaux, A.

AU - Dita, S.

AU - Drapier, O.

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 - Landaud, G.

AU - LeBornec, Y.

AU - Lourenço, C.

AU - Luquin, L.

AU - MacCormick, M.

AU - Macciotta, M. P.

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 - Prado da Silva, W.

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 - Vale, C.

AU - Vercellin, E.

AU - Willis, N.

PY - 1999

Y1 - 1999

N2 - The NA50 experiment at the CERN SPS has been equipped with a Cerenkov quartz detector to measure the charge of projectilelike fragments emitted in interactions of the lead beam of [Formula Presented] with a 12 mm thick lead target. A clear fission peak has been observed in the light output distribution of the fragment detector and the measured number of fission events per incident Pb ion is [Formula Presented] The information provided by the NA50 zero-degree calorimeter has allowed us to check that fission occurs in extremely peripheral collisions. To provide the first information about the fission mechanism, the expected yield of electromagnetic fission events in our experimental conditions has been computed: it turns out to be about [Formula Presented] smaller than the observed one. The approximations necessarily made in our calculation as well as the contribution due to fission induced by nuclear interaction could account for such a difference.

AB - The NA50 experiment at the CERN SPS has been equipped with a Cerenkov quartz detector to measure the charge of projectilelike fragments emitted in interactions of the lead beam of [Formula Presented] with a 12 mm thick lead target. A clear fission peak has been observed in the light output distribution of the fragment detector and the measured number of fission events per incident Pb ion is [Formula Presented] The information provided by the NA50 zero-degree calorimeter has allowed us to check that fission occurs in extremely peripheral collisions. To provide the first information about the fission mechanism, the expected yield of electromagnetic fission events in our experimental conditions has been computed: it turns out to be about [Formula Presented] smaller than the observed one. The approximations necessarily made in our calculation as well as the contribution due to fission induced by nuclear interaction could account for such a difference.

U2 - 10.1103/PhysRevC.59.876

DO - 10.1103/PhysRevC.59.876

M3 - Article

SN - 0556-2813

VL - 59

SP - 876

EP - 883

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 2

ER -

Observation of fission in Pb-Pb interactions at [Formula Presented]

Abstract

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