Evidence for a long-range component in the pion emission source in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

Evidence for a long-range component in the pion emission source in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

Emission source functions are extracted from correlation functions constructed from charged pions produced at mid-rapidity in Au+Au collisions at sqrt(s_NN)=200 GeV. The source parameters extracted from these functions at low k_T, give first indications of a long tail for the pion emission source. T...

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Veröffentlicht in:Physical review letters 2007, Vol.98
Hauptverfasser: Adler, S.S., Afanasiev, S., Aidala, C., N. Ajitanand, N., Akiba, Y., Alexander, J., Amirikas, R., Aphecetche, Laurent, H. Aronson, S., Averbeck, R., C. Awes, T., Azmoun, R., Babintsev, V., Baldisseri, A., N. Barish, K., D. Barnes, P., Bassalleck, B., Bathe, S., Batsouli, S., Baublis, V., Bazilevsky, A., Belikov, S., Berdnikov, Y., Bhagavatula, S., G. Boissevain, J., Borel, H., Borenstein, S., L. Brooks, M., S. Brown, D., Bruner, N., Bucher, D., Buesching, H., Bumazhnov, V., Bunce, G., M. Burward-Hoy, J., Butsyk, S., Camard, X., Chai, J.-S., Chand, P., C. Chang, W., Chernichenko, S., Y. Chi, C., Chiba, J., Chiu, M., J. Choi, I., Choi, J., K. Choudhury, R., Chujo, T., Chung, P., Cianciolo, V., Cobigo, Y., A. Cole, B., Constantin, P., Csanád, M., Csörgő, T., d'Enterria, D., David, G., Delagrange, H., Denisov, A., Deshpande, A., J. Desmond, E., Devismes, A., Dietzsch, O., Drapier, O., Drees, A., Du Rietz, R., Durum, A., Dutta, D., V. Efremenko, Y., El Chenawi, K., Enokizono, A., En'Yo, H., Esumi, S., Ewell, L., E. Fields, D., Fleuret, F., L. Fokin, S., D. Fox, B., Fraenkel, Z., E. Frantz, J., Franz, A., D. Frawley, A., Fung, S.-Y., Garpman, S., K. Ghosh, T., Glenn, A., Gogiberidze, G., Gonin, M., Gosset, J., Goto, Y., Granier de Cassagnac, R., Grau, N., V. Greene, S., Grosse Perdekamp, M., Guryn, W., Gustafsson, H.-Å., Hachiya, T., S. Haggerty, J., Hamagaki, H., G. Hansen, A.
Format: Artikel
Sprache:eng
Schlagworte:
Nuclear Experiment
Physics
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Zusammenfassung:Emission source functions are extracted from correlation functions constructed from charged pions produced at mid-rapidity in Au+Au collisions at sqrt(s_NN)=200 GeV. The source parameters extracted from these functions at low k_T, give first indications of a long tail for the pion emission source. The source extension cannot be explained solely by simple kinematic considerations. The possible role of a halo of secondary pions from resonance emissions is explored.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.98.132301