Measurement of eta '(958) formation in two-photon collisions at lep1
文献类型：期刊论文
| 作者 | Acciarri, M; Adriani, O; Aguilar-Benitez, M; Ahlen, S; Alcaraz, J; Alemanni, G; Allaby, J; Aloisio, A; Alverson, G; Alviggi, MG |
| 刊名 | Physics letters b
 |
| 出版日期 | 1998-02-05 |
| 卷号 | 418期号:3-4页码:399-410 |
| ISSN号 | 0370-2693 |
| 通讯作者 | Acciarri, m() |
| 英文摘要 | The formation of the eta' in the reaction e(+)e(-)-->e(+)e(-)eta'-->e(+)e(-)pi(+)pi(-)gamma has been measured by the l3 detector at a centre-of-mass energy of 91 gev. the radiative width of the eta' has been found to be gamma(gamma gamma)=4.17+/-0.10(stat.)+/-0.27(sys.)kev. the q(2) dependence of the eta' formation cross section has been measured for q(2) less than or equal to 10 gev2 and the eta' electromagnetic transition form factor has been determined. the form factor can be parametrised by a pole form with lambda=0.900+/-0.046(stat.)+/-0.022(sys.)gev. it is also consistent with recent non-perturbative qcd calculations. (c) 1998 elsevier science b.v. |
| WOS关键词 | RELATIVISTIC QUARK-MODEL ; TRANSITION FORM-FACTOR ; 2-PHOTON INTERACTIONS ; RADIATIVE WIDTH ; L3 EXPERIMENT ; MESONS ; ETA' ; DETECTOR ; CONSTRUCTION ; CALORIMETER |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000072938800021 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176262 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Acciarri, M |
| 作者单位 | 1.Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy 2.Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany 3.Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany 4.NIKHEF, Natl Inst High Energy Phys, NL-1009 DB Amsterdam, Netherlands 5.Univ Amsterdam, NL-1009 DB Amsterdam, Netherlands 6.Univ Michigan, Ann Arbor, MI 48109 USA 7.IN2P3, Lab Annecy Le Vieux Phys Particules, LAPP, CNRS, F-74941 Annecy Le Vieux, France 8.Johns Hopkins Univ, Baltimore, MD 21218 USA 9.Univ Basel, Inst Phys, CH-4056 Basel, Switzerland 10.Inst High Energy Phys, IHEP, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Acciarri, M,Adriani, O,Aguilar-Benitez, M,et al. Measurement of eta '(958) formation in two-photon collisions at lep1[J]. Physics letters b,1998,418(3-4):399-410. |
| APA | Acciarri, M.,Adriani, O.,Aguilar-Benitez, M.,Ahlen, S.,Alcaraz, J.,...&Ziegler, F.(1998).Measurement of eta '(958) formation in two-photon collisions at lep1.Physics letters b,418(3-4),399-410. |
| MLA | Acciarri, M,et al."Measurement of eta '(958) formation in two-photon collisions at lep1".Physics letters b 418.3-4(1998):399-410. |
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