共查询到20条相似文献,搜索用时 15 毫秒
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Mariana Frank Nathan Isgur Patrick J. ODonnell John Weinstein 《Physics letters. [Part B]》1985,158(5):442-448
We show that the “δ(980) dominance” of the decay ι(1440)→ Kπ, apparently contradicting the failure to observe the decay ι→ ηππ, can be explained in the K molecule interpretation of the S1 and δ scalar mesons as an effect of K final state interactions. 相似文献
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S. M. Lietti C. A. de S. Pires 《The European Physical Journal C - Particles and Fields》2004,35(1):137-143
In this work, we investigate the sensitivity of the process
at LHC for the photonic 3- and 4-point functions that appear in non-commutative QED. We show that this process serves to study the behavior of the space-space as well as of the space-time non-commutativity. We also show that this process can probe the non-commutative scale
in the range of a few TeV.Received: 9 February 2004, Revised: 27 February 2004, Published online: 8 April 2004 相似文献
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G.J. Gounaris P.I. Porfyriadis F.M. Renard 《The European Physical Journal C - Particles and Fields》1999,9(4):673-686
We study the helicity amplitudes of the process at high energy, which in the standard and SUSY models first arise at the one-loop order. In the standard model (SM), the
diagrams involve , charged-quark, and lepton loops, while in SUSY, we also have contributions from chargino-, charged-sfermion, and Higgs-loop
diagrams. The SUSY contributions are most important in the region above the threshold for producing the supersymmetric partners;
there, they interfere most effectively with the primarily imaginary SM amplitudes. Simple expressions for the relevant one-loop
functions are given which provide a direct overview of the behaviour of the helicity amplitudes in the whole parameter space
at high energies. The various characteristics of a large set of observables are studied in detail.
Received: 3 February 1999 / Pulished online: 30 June 1999 相似文献
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Artuso M He D Goldberg M Horwitz N Kennett R Moneti GC Muheim F Mukhin Y Playfer S Rozen Y Stone S Thulasidas M Vasseur G Zhu G Bartelt J Csorna SE Egyed Z Jain V Sheldon P Akerib DS Barish B Chadha M Chan S Cowen DF Eigen G Miller JS O'Grady C Urheim J Weinstein AJ Acosta D Athanas M Masek G Paar H Sivertz M Bean A Gronberg J Kutschke R Menary S Morrison RJ Nakanishi S Nelson HN Nelson TK Richman JD Ryd A Tajima H Schmidt D Sperka D Witherell MS Procario M Yang S Balest R Cho K Daoudi M 《Physical review D: Particles and fields》1994,50(9):5484-5490