Neutron emission in electromagnetic dissociation of ultrarelativistic Pb ions

New data on forward neutron emission in fragmentation of 30A-GeV /sup 208/Pb ions on Al, Cu, Sn, and Pb nuclei are presented. The measurements were performed at the CERN SPS in the framework of the ALICE-LUMI experiment. The measured cross sections are compared with predictions of the RELDIS model f...

Descripción completa

Detalles Bibliográficos
Autores principales: Golubeva, M B, Arnaldi, R, Cicalò, C, Cortese, P, De Marco, N, Dellacasa, G, Efthymiopoulos, I, Ferretti, A, Gallio, M, Gatignon, L, Guber, F F, Karavicheva, T L, Karpechev, E V, Kurepin, A B, Maevskaya, A I, Musso, A, Oppedisano, C, Piccotti, A, Pshenichnov, I A, Puddu, G, Reshetin, A I, Scomparin, E, Shileev, K A, Siddi, E, Szymanski, P, Tiflov, V V, Topilskaya, N S, Vercellin, E
Lenguaje:eng
Publicado: 2005
Materias:
Nuclear Physics
Acceso en línea:https://dx.doi.org/10.1103/PhysRevC.71.024905
http://cds.cern.ch/record/908930
_version_ 1780908849119625216
author Golubeva, M B
Arnaldi, R
Cicalò, C
Cortese, P
De Marco, N
Dellacasa, G
Efthymiopoulos, I
Ferretti, A
Gallio, M
Gatignon, L
Guber, F F
Karavicheva, T L
Karpechev, E V
Kurepin, A B
Maevskaya, A I
Musso, A
Oppedisano, C
Piccotti, A
Pshenichnov, I A
Puddu, G
Reshetin, A I
Scomparin, E
Shileev, K A
Siddi, E
Szymanski, P
Tiflov, V V
Topilskaya, N S
Vercellin, E
author_facet Golubeva, M B
Arnaldi, R
Cicalò, C
Cortese, P
De Marco, N
Dellacasa, G
Efthymiopoulos, I
Ferretti, A
Gallio, M
Gatignon, L
Guber, F F
Karavicheva, T L
Karpechev, E V
Kurepin, A B
Maevskaya, A I
Musso, A
Oppedisano, C
Piccotti, A
Pshenichnov, I A
Puddu, G
Reshetin, A I
Scomparin, E
Shileev, K A
Siddi, E
Szymanski, P
Tiflov, V V
Topilskaya, N S
Vercellin, E
author_sort Golubeva, M B
collection CERN
description New data on forward neutron emission in fragmentation of 30A-GeV /sup 208/Pb ions on Al, Cu, Sn, and Pb nuclei are presented. The measurements were performed at the CERN SPS in the framework of the ALICE-LUMI experiment. The measured cross sections are compared with predictions of the RELDIS model for electromagnetic interactions and with results of the abrasion-ablation model for hadronic interactions. The electromagnetic excitation of a Pb projectile followed by single- and double-neutron emission is found to be the dominant process in full agreement with theoretical estimations. The measured 1nX cross sections are generally well described. The measured 2nX data, which are 4-5 times lower than the 1nX data, are slightly underestimated by theory. Nevertheless, the sum of 1nX and 2nX cross sections is in good agreement with theory. This confirms the predictive power of the RELDIS model, which can be used to calculate the sum of 1nX and 2nX emission rates for the purpose of calibration of luminosity measurements in PbPb collisions at the Large Hadron Collider at CERN
id cern-908930
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2005
record_format invenio
spelling cern-9089302019-09-30T06:29:59Zdoi:10.1103/PhysRevC.71.024905http://cds.cern.ch/record/908930engGolubeva, M BArnaldi, RCicalò, CCortese, PDe Marco, NDellacasa, GEfthymiopoulos, IFerretti, AGallio, MGatignon, LGuber, F FKaravicheva, T LKarpechev, E VKurepin, A BMaevskaya, A IMusso, AOppedisano, CPiccotti, APshenichnov, I APuddu, GReshetin, A IScomparin, EShileev, K ASiddi, ESzymanski, PTiflov, V VTopilskaya, N SVercellin, ENeutron emission in electromagnetic dissociation of ultrarelativistic Pb ionsNuclear PhysicsNew data on forward neutron emission in fragmentation of 30A-GeV /sup 208/Pb ions on Al, Cu, Sn, and Pb nuclei are presented. The measurements were performed at the CERN SPS in the framework of the ALICE-LUMI experiment. The measured cross sections are compared with predictions of the RELDIS model for electromagnetic interactions and with results of the abrasion-ablation model for hadronic interactions. The electromagnetic excitation of a Pb projectile followed by single- and double-neutron emission is found to be the dominant process in full agreement with theoretical estimations. The measured 1nX cross sections are generally well described. The measured 2nX data, which are 4-5 times lower than the 1nX data, are slightly underestimated by theory. Nevertheless, the sum of 1nX and 2nX cross sections is in good agreement with theory. This confirms the predictive power of the RELDIS model, which can be used to calculate the sum of 1nX and 2nX emission rates for the purpose of calibration of luminosity measurements in PbPb collisions at the Large Hadron Collider at CERNoai:cds.cern.ch:9089302005
spellingShingle Nuclear Physics
Golubeva, M B
Arnaldi, R
Cicalò, C
Cortese, P
De Marco, N
Dellacasa, G
Efthymiopoulos, I
Ferretti, A
Gallio, M
Gatignon, L
Guber, F F
Karavicheva, T L
Karpechev, E V
Kurepin, A B
Maevskaya, A I
Musso, A
Oppedisano, C
Piccotti, A
Pshenichnov, I A
Puddu, G
Reshetin, A I
Scomparin, E
Shileev, K A
Siddi, E
Szymanski, P
Tiflov, V V
Topilskaya, N S
Vercellin, E
Neutron emission in electromagnetic dissociation of ultrarelativistic Pb ions
title Neutron emission in electromagnetic dissociation of ultrarelativistic Pb ions
title_full Neutron emission in electromagnetic dissociation of ultrarelativistic Pb ions
title_fullStr Neutron emission in electromagnetic dissociation of ultrarelativistic Pb ions
title_full_unstemmed Neutron emission in electromagnetic dissociation of ultrarelativistic Pb ions
title_short Neutron emission in electromagnetic dissociation of ultrarelativistic Pb ions
title_sort neutron emission in electromagnetic dissociation of ultrarelativistic pb ions
topic Nuclear Physics
url https://dx.doi.org/10.1103/PhysRevC.71.024905
http://cds.cern.ch/record/908930
work_keys_str_mv AT golubevamb neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT arnaldir neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT cicaloc neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT cortesep neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT demarcon neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT dellacasag neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT efthymiopoulosi neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT ferrettia neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT galliom neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT gatignonl neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT guberff neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT karavichevatl neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT karpechevev neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT kurepinab neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT maevskayaai neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT mussoa neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT oppedisanoc neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT piccottia neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT pshenichnovia neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT puddug neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT reshetinai neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT scomparine neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT shileevka neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT siddie neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT szymanskip neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT tiflovvv neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT topilskayans neutronemissioninelectromagneticdissociationofultrarelativisticpbions
AT vercelline neutronemissioninelectromagneticdissociationofultrarelativisticpbions

Ejemplares similares