We study the process e+e−→e+e−η′ in the double-tag mode and measure for the first time the γ⋆γ⋆→η′ transition form factor Fη′(Q21,Q22) in the momentum-transfer range 2<Q21, Q22<60  GeV2. The analysis is based on a data sample corresponding to an integrated luminosity of around 469  fb−1 collected at the PEP-II e+e− collider with the BABAR detector at center-of-mass energies near 10.6 GeV.

Measurement of the γ∗γ∗ →η′ transition form factor / Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D.N., Kolomensky, Yu.G., Fritsch, M., Koch, H., Schroeder, T., Hearty, C., Mattison, T.S., Mckenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin, V.P., Golubev, V.B., Kozyrev, E.A., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - STAMPA. - 98:11(2018), pp. 112002.1-112002.11. [10.1103/PhysRevD.98.112002]

Measurement of the γ∗γ∗ →η′ transition form factor

Lanceri, L.;Vitale, L.;
2018-01-01

Abstract

We study the process e+e−→e+e−η′ in the double-tag mode and measure for the first time the γ⋆γ⋆→η′ transition form factor Fη′(Q21,Q22) in the momentum-transfer range 2
File in questo prodotto:
File Dimensione Formato  
PhysRevD.98.112002.pdf

accesso aperto

Tipologia: Documento in Versione Editoriale
Licenza: Creative commons
Dimensione 653.88 kB
Formato Adobe PDF
653.88 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS 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/11368/2941850
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 38
  • ???jsp.display-item.citation.isi??? 29
social impact