کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1845528 1528093 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-photon physics at KLOE/KLOE-2
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Two-photon physics at KLOE/KLOE-2
چکیده انگلیسی

Studies of γγ interactions are performed with the KLOE detector, without tagging of the outgoing e+e−. The data sample is from an integrated luminosity of 240pb−1 collected at the ϕ-factory DAΦNE with e+e− beams colliding at , below the ϕ resonance peak. We present preliminary results concerning the measurement of the σe+e−→e+e−η cross section, using the η→π+π−π0 and η→3π0 channels, leading to consistent values, as well as the analysis of the four photon invariant mass, showing the contribution of the e+e−→e+e−π0π0 process in the small mass region of the spectrum. A brief status of the KLOE-2 e± taggers is reported.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Proceedings Supplements - Volumes 225–227, April–June 2012, Pages 121-125