物理セミナー/Physics seminar
| カテゴリ | |
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| 開始 | 2017/11/14（火）16:00 |
| 終了 | 2017/11/14（火）17:00 |
| 会場 | Room 345, Building #4, Tsukuba-campus (MCU 281) |
| 講演タイトル | Production of tensor meson f2(1270) and tensor glueball in gamma-gamma collisions within the QCD factorisation framework |
| 講演者 | Nokolay Kivel (Johannes Gutenberg University Mainz) |
| 言語 | 英語/English |
| 連絡先 | hideki.miyake@kek.jp (4896) |
| ウェブサイト | https://www2.kek.jp/physics-seminar/ |
| 食堂・売店 | 利用予定なし／0 |
概要
Motivated by the first measurement of the transition form factor $\gamma^*\gamma \to f_2(1270)$ at large momentum transfers by the BELLE collaboration we present an improved QCD analysis of this reaction in the framework of collinear factorization including contributions of twist-three quark-antiquark-gluon operators and an estimate of soft end-point corrections using light-cone sum rules.
The results appear to be in a good agreement with the data, in particular the predicted scaling behavior is reproduced in all cases.
We also study tensor glueball production in the reaction $\gamma\gamma\rightarrow G_2\pi^0$. The corresponding cross section is computed at higher momentum transfer. We obtain that under some plausible assumptions this cross section could be measured in BELLE-II experiment.
カテゴリ
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国際会議・研究会
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コロキウム
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セミナー
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談話会・交流会