The NA62 experiment collected a large sample of charged kaon decays in 2007 with a highly efficient trigger for decays into electrons. A measurement of the Ï0electromagnetic transition form factor slope parameter from 1.11Ã106fully reconstructed K±âϱÏD0, ÏD0âe+eâγ events is reported. The measured value a=(3.68±0.57)Ã10â2is in good agreement with theoretical expectations and previous measurements, and represents the most precise experimental determination of the slope in the time-like momentum transfer region.
Measurement of the pi0 electromagnetic transition form factor slope / Lazzeroni, C., Lurkin, N., Romano, A., The Na62 Collaboration, N., Blazek, T., Ceccucci, A., Danielsson, H., Falaleev, V., Gatignon, L., Goy Lopez, S., Hallgren, B., Maier, A., Peters, A., Piccini, M., Riedler, P., Frabetti, P.L., Gersabeck, E., Kekelidze, V., Madigozhin, D., Misheva, M., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 768:(2017), pp. 38-45. [10.1016/j.physletb.2017.02.042]
Measurement of the pi0 electromagnetic transition form factor slope
Bizzeti, A.;
2017
Abstract
The NA62 experiment collected a large sample of charged kaon decays in 2007 with a highly efficient trigger for decays into electrons. A measurement of the Ï0electromagnetic transition form factor slope parameter from 1.11Ã106fully reconstructed K±âϱÏD0, ÏD0âe+eâγ events is reported. The measured value a=(3.68±0.57)Ã10â2is in good agreement with theoretical expectations and previous measurements, and represents the most precise experimental determination of the slope in the time-like momentum transfer region.| File | Dimensione | Formato | |
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2017_plb768_38-45_pi0_em_transition_ff_slope.pdf
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