منابع مشابه
Electroproduction of K mesons at CLAS
Quark models predict baryon resonances [1] that have not yet been observed via strong interactions. These resonances could be detected via electroand photoproduction of strange mesons. Of special interest are the nucleon resonances N which some of them could couple strongly to KΛ and KΣ [2]. Moreover, higher mass nucleon resonances could favor decaying into KΣ, near threshold. Using a quark-pai...
متن کامل1 Hyperon photo - and electroproduction at CLAS
(Received: February 7, 2008) The large acceptance and high multiplicity capabilities of the CLAS detector make it possible to study a wide range of previously unmeasured strange baryon production processes. Studies of the decay angular distributions of electroproduced strange baryons have yielded several interesting new results. The Λ(1520) electroproduction decay angular distributions shed lig...
متن کاملPion Electroproduction Using Clas
Measurements of the p(e;e p)πo reaction in the ∆(1232) resonance region have been performed with the CLAS detector at Jefferson Lab using beam energies of 1.645 and 2.445 GeV. Cross sections were measured over a range of four-momentum transfer Q2= 0.4-1.8 (GeV/c)2. Decay angular distributions in the πo p center-of-mass were obtained with full coverage in cosθ π and φ π. This permits the extract...
متن کاملElectroproduction of Vector Mesons
Exclusive electroproduction of vector mesons (VMs) is a particularly good process for studying the transition from the soft to the hard regime of strong interactions [1], the former being well described within the Regge phenomenology while the latter by perturbative QCD (pQCD). The interest in this interplay comes from the need to understand at which scale a partonic language is applicable. The...
متن کاملHard Electroproduction of Vector Mesons
In this talk I am going to report on an ongoing analysis [1, 2, 3] of hard electroproduction of light vector mesons within the handbag approach which is based on QCD factorization into hard subprocesses and generalized parton distributions (GPDs) encoding the soft, nonperturbative physics. As is well-known the leading-twist contribution (i.e. employing the collinear approximation) evaluated to ...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2005
ISSN: 0375-9474
DOI: 10.1016/j.nuclphysa.2005.03.017