Exclusive electroproduction of [pi]+ mesons was studied by scattering 27.6 GeV positrons or electrons off a transversely polarized hydrogen target. The single-spin azimuthal asymmetry with respect to target polarization was measured as a function of the Mandelstam variable t, the Bjorken scaling variable xB, and the virtuality Q2 of the exchanged photon. The extracted Fourier components of the asymmetry were found to be consistent with zero, except one that was found to be large and that involves interference of contributions from longitudinal and transverse virtual photons.

Single-spin azimuthal asymmetry in exclusive electroproduction of [pi]+ mesons on transversely polarized protons

CAPILUPPI, Marco;CIULLO, Giuseppe;CONTALBRIGO, Marco;FERRETTI, Paola;GIORDANO, Francesca;LENISA, Paolo;PAPPALARDO, Luciano Libero;STANCARI, Michelle Dawn;STATERA, Marco;
2010

Abstract

Exclusive electroproduction of [pi]+ mesons was studied by scattering 27.6 GeV positrons or electrons off a transversely polarized hydrogen target. The single-spin azimuthal asymmetry with respect to target polarization was measured as a function of the Mandelstam variable t, the Bjorken scaling variable xB, and the virtuality Q2 of the exchanged photon. The extracted Fourier components of the asymmetry were found to be consistent with zero, except one that was found to be large and that involves interference of contributions from longitudinal and transverse virtual photons.
2010
A., Airapetian; N., Akopov; Z., Akopov; E., Aschenauer; W., Augustyniak; A., Avetissian; E., Avetisyan; B., Ball; S., Belostotski; N., Bianchi; H., Blok; H., Böttcher; C., Bonomo; A., Borissov; V., Bryzgalov; J., Burns; Capiluppi, Marco; G., Capitani; E., Cisbani; Ciullo, Giuseppe; Contalbrigo, Marco; Ferretti, Paola; W., Deconinck; R. D., Leo; L. D., Nardo; E. D., Sanctis; M., Diefenthaler; P. D., Nezza; J., Dreschler; M., Düren; M., Ehrenfried; G., Elbakian; F., Ellinghaus; R., Fabbri; A., Fantoni; L., Felawka; S., Frullani; D., Gabbert; V., Gapienko; F., Garibaldi; V., Gharibyan; Giordano, Francesca; S., Gliske; C., Hadjidakis; M., Hartig; D., Hasch; G., Hill; A., Hillenbrand; M., Hoek; Y., Holler; I., Hristova; Y., Imazu; A., Ivanilov; H., Jackson; H., Jo; S., Joosten; R., Kaiser; T., Keri; E., Kinney; A., Kisselev; N., Kobayashi; V., Korotkov; P., Kravchenko; L., Lagamba; R., Lamb; L., Lapikás; I., Lehmann; Lenisa, Paolo; L., Linden Levy; A. L., Ruiz; W., Lorenzon; X., Lu; X., Lu; B., Ma; D., Mahon; N., Makins; S., Manaenkov; L., Manfré; Y., Mao; B., Marianski; B. M., de la Ossa; H., Marukyan; C., Miller; Y., Miyachi; A., Movsisyan; V., Muccifora; M., Murray; A., Mussgiller; E., Nappi; Y., Naryshkin; A., Nass; W., Nowak; Pappalardo, Luciano Libero; R., Perez Benito; P., Reimer; A., Reolon; C., Riedl; K., Rith; G., Rosner; A., Rostomyan; J., Rubin; D., Ryckbosch; Y., Salomatin; F., Sanftl; A., Schäfer; G., Schnell; K., Schüler; B., Seitz; T., Shibata; V., Shutov; Stancari, Michelle Dawn; Statera, Marco; J., Steijger; H., Stenzel; J., Stewart; S., Taroian; A., Terkulov; A., Trzcinski; M., Tytgat; A., Vandenbroucke; P. v., der Nat; Y. V., Haarlem; C. V., Hulse; M., Varanda; D., Veretennikov; V., Vikhrov; I., Vilardi; C., Vogel; S., Wang; S., Yaschenko; H., Ye; Z., Ye; S., Yen; W., Yu; D., Zeiler; B., Zihlmann; P., Zupranski
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1412319
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 58
  • ???jsp.display-item.citation.isi??? 48
social impact