Leptonic decay of the Upsilon(1S) meson at third order in QCD

Beneke, Martin; Kiyo, Yuichiro; Marquard, Peter; Penin, Alexander; Piclum, Jan; Seidel, Dirk; Steinhauser, Matthias

doi:10.1103/PhysRevLett.112.151801

arXiv 2014-01-13 DOI 10.1103/PhysRevLett.112.151801 0 مشاهدة

Leptonic decay of the Upsilon(1S) meson at third order in QCD

Beneke, Martin · Kiyo, Yuichiro · Marquard, Peter · Penin, Alexander · Piclum, Jan · Seidel, Dirk · Steinhauser, Matthias

High Energy Physics - Phenomenology

الأصل · EN

We present the complete next-to-next-to-next-to-leading order short-distance and bound-state QCD correction to the leptonic decay rate Gamma(Upsilon(1S)->l+l-) of the lowest-lying spin-1 bottomonium state. The perturbative QCD prediction is compared to the measurement Gamma(Upsilon(1S)->e+e-)=1.340(18) keV.

الترجمة العربية

لا توجد ترجمة عربية لهذا البحث بعد. كن أوّل من يطلبها: تستغرق ثوانيَ معدودة، وتُحفظ النتيجة لكل قارئ قادم.

اقرأ على arXiv