排序方式： 共有52条查询结果，搜索用时 156 毫秒
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W. Bartel D. Cords P. Dittmann R. Eichler R. Felst D. Haidt H. Krehbiel B. Naroska L.H. O&#x;Neill P. Steffen H. Wenninger Y. Zhang E. Elsen M. Helm A. Petersen P. Warming G. Weber S. Bethke C. Yanagisawa 《Physics letters. [Part B]》1981,100(4):364-366
A search for narrow resonances in e+e? annihilation between 33.00 and 36.72 GeV is reported. No evidence is found for the existence of such states. The 90% confidence upper limit on the integrated resonance cross section is determined to be 28 nb MeV, a value significantly below that expected for the lowest t bound state. 相似文献
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Abe K Amako K Arai Y Asano Y Chiba M Chiba Y Daigo M Emura T Endo I Fukawa M Fukui T Fukushima Y Haba J Haidt D Hayashibara I Hemmi Y Higuchi M Hirose T Hojo Y Homma Y Hoshi Y Ikegami Y Ishihara N Kamitani T Kanematsu N Kanzaki J Kikuchi R Kondo T Koseki T Kurashige H Matsui T Minami M Miyake K Mori S Nagashima Y Nakamura T Nakano I Narita Y Odaka S Ogawa K Ohama T Ohsugi T Okamoto A Ono A Osabe H Oyama T Saito H Sakae H Sakamoto H Sakamoto S Sakano M Sakuda M Sasao N Sato M Shioden M Shirai J 《Physical review letters》1989,63(17):1776-1779
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D. Haidt 《The European Physical Journal C - Particles and Fields》2004,35(4):519-526
The low-x data of the structure function F
2 measured by the collaborations H1 and ZEUS are compared with the prediction of the DGLAP equations. A new method of comparing data and theory is presented. The systematic and quantitative analysis shows that the predicted 1/x behavior deviates increasingly from the observed one as x decreases below 10-3.Received: 31 October 2003, Published online: 26 May 2004 相似文献
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W. Bartel D. Cords P. Dittmann R. Eichler R. Felst D. Haidt H. Krehbiel K. Meier B. Naroska L.H. O&#x;Neill P. Steffen H. Wenninger E. Elsen A. Petersen P. Warming G. Weber S. Bethke C. Yanagisawa 《Physics letters. [Part B]》1982,114(1):71-75
Muons from a multihadron sample are used to determine an upper limit τ<1.4 × 10?12s (95% CL) on the lifetime of beauty particles. The data are obtained with the JADE detector at PETRA. The result is interpreted within the standard model. 相似文献