NA60 results on pT spectra and the ρ spectral function in In-In collisions

J. Seixas; R. Arnaldi; R. Averbeck; K. Banicz; J. Castor; B. Chaurand; C. Cicalò; A. Colla; P. Cortese; S. Damjanovic; A. David; A. De Falco; A. Devaux; A. Drees; L. Ducroux; H. En'Yo; A. Ferretti; M. Floris; A. Förster; P. Force; N. Guettet; A. Guichard; H. Gulkanian; M. Keil; L. Kluberg; C. Lourenço; J. Lozano; F. Manso; A. Masoni; P. Martins; A. Neves; H. Ohnishi; C. Oppedisano; P. Parracho; P. Pillot; G. Puddu; E. Radermacher; P. Ramalhete; P. Rosinsky; E. Scomparin; S. Serci; R. Shahoyan; P. Sonderegger; H. J. Specht; R. Tieulent; G. Usai; R. Veenhof; H. K. Wöhri

doi:10.1088/0954-3899/34/8/S148

NA60 results on p_T spectra and the ρ spectral function in In-In collisions

J. Seixas, R. Arnaldi, R. Averbeck, K. Banicz, J. Castor, B. Chaurand, C. Cicalò, A. Colla, P. Cortese, S. Damjanovic, A. David, A. De Falco, A. Devaux, A. Drees, L. Ducroux, H. En'Yo, A. Ferretti, M. Floris, A. Förster, P. ForceN. Guettet, A. Guichard, H. Gulkanian, M. Keil, L. Kluberg, C. Lourenço, J. Lozano, F. Manso, A. Masoni, P. Martins, A. Neves, H. Ohnishi, C. Oppedisano, P. Parracho, P. Pillot, G. Puddu, E. Radermacher, P. Ramalhete, P. Rosinsky, E. Scomparin, S. Serci, R. Shahoyan, P. Sonderegger, H. J. Specht, R. Tieulent, G. Usai, R. Veenhof, H. K. Wöhri

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

Abstract

The NA60 experiment at the CERN SPS has studied low-mass muon pairs in 158 AGeV In-In collisions. A strong excess of pairs is observed above the yield expected from neutral meson decays. The unprecedented sample size of close to 400K events and the good mass resolution of about 2% have made it possible to isolate the excess by subtraction of the decay sources (keeping the ρ). The shape of the resulting mass spectrum exhibits considerable broadening, but essentially no shift in mass. The acceptance-corrected transverse-momentum spectra have a shape atypical for radial flow and show a significant mass dependence, pointing to different sources in different mass regions.

Lingua originale	Inglese
Numero di articolo	S148
pagine (da-a)	S1023-S1027
Rivista	Journal of Physics G: Nuclear and Particle Physics
Volume	34
Numero di pubblicazione	8
DOI	https://doi.org/10.1088/0954-3899/34/8/S148
Stato di pubblicazione	Pubblicato - 1 ago 2007
Pubblicato esternamente	Sì

Accesso al documento

10.1088/0954-3899/34/8/S148

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Seixas, J., Arnaldi, R., Averbeck, R., Banicz, K., Castor, J., Chaurand, B., Cicalò, C., Colla, A., Cortese, P., Damjanovic, S., David, A., De Falco, A., Devaux, A., Drees, A., Ducroux, L., En'Yo, H., Ferretti, A., Floris, M., Förster, A., ... Wöhri, H. K. (2007). NA60 results on p_T spectra and the ρ spectral function in In-In collisions. Journal of Physics G: Nuclear and Particle Physics, 34(8), S1023-S1027. Articolo S148. https://doi.org/10.1088/0954-3899/34/8/S148

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title = "NA60 results on pT spectra and the ρ spectral function in In-In collisions",

abstract = "The NA60 experiment at the CERN SPS has studied low-mass muon pairs in 158 AGeV In-In collisions. A strong excess of pairs is observed above the yield expected from neutral meson decays. The unprecedented sample size of close to 400K events and the good mass resolution of about 2\% have made it possible to isolate the excess by subtraction of the decay sources (keeping the ρ). The shape of the resulting mass spectrum exhibits considerable broadening, but essentially no shift in mass. The acceptance-corrected transverse-momentum spectra have a shape atypical for radial flow and show a significant mass dependence, pointing to different sources in different mass regions.",

author = "J. Seixas and R. Arnaldi and R. Averbeck and K. Banicz and J. Castor and B. Chaurand and C. Cical{\`o} and A. Colla and P. Cortese and S. Damjanovic and A. David and \{De Falco\}, A. and A. Devaux and A. Drees and L. Ducroux and H. En'Yo and A. Ferretti and M. Floris and A. F{\"o}rster and P. Force and N. Guettet and A. Guichard and H. Gulkanian and M. Keil and L. Kluberg and C. Louren{\c c}o and J. Lozano and F. Manso and A. Masoni and P. Martins and A. Neves and H. Ohnishi and C. Oppedisano and P. Parracho and P. Pillot and G. Puddu and E. Radermacher and P. Ramalhete and P. Rosinsky and E. Scomparin and S. Serci and R. Shahoyan and P. Sonderegger and Specht, \{H. J.\} and R. Tieulent and G. Usai and R. Veenhof and W{\"o}hri, \{H. K.\}",

year = "2007",

month = aug,

day = "1",

doi = "10.1088/0954-3899/34/8/S148",

language = "English",

volume = "34",

pages = "S1023--S1027",

journal = "Journal of Physics G: Nuclear and Particle Physics",

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Seixas, J, Arnaldi, R, Averbeck, R, Banicz, K, Castor, J, Chaurand, B, Cicalò, C, Colla, A, Cortese, P, Damjanovic, S, David, A, De Falco, A, Devaux, A, Drees, A, Ducroux, L, En'Yo, H, Ferretti, A, Floris, M, Förster, A, Force, P, Guettet, N, Guichard, A, Gulkanian, H, Keil, M, Kluberg, L, Lourenço, C, Lozano, J, Manso, F, Masoni, A, Martins, P, Neves, A, Ohnishi, H, Oppedisano, C, Parracho, P, Pillot, P, Puddu, G, Radermacher, E, Ramalhete, P, Rosinsky, P, Scomparin, E, Serci, S, Shahoyan, R, Sonderegger, P, Specht, HJ, Tieulent, R, Usai, G, Veenhof, R & Wöhri, HK 2007, 'NA60 results on p_T spectra and the ρ spectral function in In-In collisions', Journal of Physics G: Nuclear and Particle Physics, vol. 34, n. 8, S148, pagg. S1023-S1027. https://doi.org/10.1088/0954-3899/34/8/S148

TY - JOUR

T1 - NA60 results on pT spectra and the ρ spectral function in In-In collisions

AU - Seixas, J.

AU - Arnaldi, R.

AU - Averbeck, R.

AU - Banicz, K.

AU - Castor, J.

AU - Chaurand, B.

AU - Cicalò, C.

AU - Colla, A.

AU - Cortese, P.

AU - Damjanovic, S.

AU - David, A.

AU - De Falco, A.

AU - Devaux, A.

AU - Drees, A.

AU - Ducroux, L.

AU - En'Yo, H.

AU - Ferretti, A.

AU - Floris, M.

AU - Förster, A.

AU - Force, P.

AU - Guettet, N.

AU - Guichard, A.

AU - Gulkanian, H.

AU - Keil, M.

AU - Kluberg, L.

AU - Lourenço, C.

AU - Lozano, J.

AU - Manso, F.

AU - Masoni, A.

AU - Martins, P.

AU - Neves, A.

AU - Ohnishi, H.

AU - Oppedisano, C.

AU - Parracho, P.

AU - Pillot, P.

AU - Puddu, G.

AU - Radermacher, E.

AU - Ramalhete, P.

AU - Rosinsky, P.

AU - Scomparin, E.

AU - Serci, S.

AU - Shahoyan, R.

AU - Sonderegger, P.

AU - Specht, H. J.

AU - Tieulent, R.

AU - Usai, G.

AU - Veenhof, R.

AU - Wöhri, H. K.

PY - 2007/8/1

Y1 - 2007/8/1

N2 - The NA60 experiment at the CERN SPS has studied low-mass muon pairs in 158 AGeV In-In collisions. A strong excess of pairs is observed above the yield expected from neutral meson decays. The unprecedented sample size of close to 400K events and the good mass resolution of about 2% have made it possible to isolate the excess by subtraction of the decay sources (keeping the ρ). The shape of the resulting mass spectrum exhibits considerable broadening, but essentially no shift in mass. The acceptance-corrected transverse-momentum spectra have a shape atypical for radial flow and show a significant mass dependence, pointing to different sources in different mass regions.

AB - The NA60 experiment at the CERN SPS has studied low-mass muon pairs in 158 AGeV In-In collisions. A strong excess of pairs is observed above the yield expected from neutral meson decays. The unprecedented sample size of close to 400K events and the good mass resolution of about 2% have made it possible to isolate the excess by subtraction of the decay sources (keeping the ρ). The shape of the resulting mass spectrum exhibits considerable broadening, but essentially no shift in mass. The acceptance-corrected transverse-momentum spectra have a shape atypical for radial flow and show a significant mass dependence, pointing to different sources in different mass regions.

UR - https://www.scopus.com/pages/publications/34547457605

U2 - 10.1088/0954-3899/34/8/S148

DO - 10.1088/0954-3899/34/8/S148

M3 - Article

SN - 0954-3899

VL - 34

SP - S1023-S1027

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

IS - 8

M1 - S148