On the Symmetrical Vector Meson Pair Theory of Nuclear Interaction

1947 ◽  
Vol 72 (11) ◽  
pp. 1126-1126
Author(s):  
O. Brulin ◽  
S. Hjalmars
2011 ◽  
Vol 702 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Peng Sun ◽  
Gang Hao ◽  
Cong-Feng Qiao
Keyword(s):  

1990 ◽  
Vol 05 (14) ◽  
pp. 2705-2719 ◽  
Author(s):  
N.N. ACHASOV ◽  
V.A. KARNAKOV ◽  
G.N. SHESTAKOV

The resonance type enhancements discovered recently near the γγ→VV′ reaction thresholds are discussed in detail. It is shown that the signal in the reaction γγ→ρω can be caused by the [Formula: see text] state production. The data on the reaction γγ→K*+K*− are explained by the charged K* Regge exchange. The partial-wave compositions are presented for the OPE and OKE mechanisms in the reactions γγ→ωω and [Formula: see text]. The reaction γγ→φρ is discussed. It is pointed out too that the enhancements in γγ→ρω, [Formula: see text], γγ→ωω in the region 1.8–2 GeV can be caused by the production of the radial excitations of the tensor mesons. The possible further strategy of the search for the [Formula: see text] states in γγ collisions and in the other reactions is discussed.


2019 ◽  
Vol 199 ◽  
pp. 01014
Author(s):  
K. Piscicchia ◽  
M. Bazzi ◽  
G. Belloti ◽  
A. M. Bragadireanu ◽  
D. Bosnar ◽  
...  

The AMADEUS experiment at the DAΦNE collider of LNF-INFN deals with the investigation of the at-rest, or low-momentum, K− interactions in light nuclear targets, with the aim to constrain the low energy QCD models in the strangeness sector. The 0 step of the experiment consisted in the reanalysis of the 2004/2005 KLOE data, exploiting K− absorptions in H, 4He, 9Be and 12C, leading to the first invariant mass spectroscopic study with very low momentum (about 100 MeV) in-flight K− captures. With AMADEUS step 1 a dedicated pure Carbon target was implemented in the central region of the KLOE detector, providing a high statistic sample of pure at-rest K− nuclear interaction. The first measurement of the non-resonant transition amplitude $\left| {{A_{{K^ - }n \to \Lambda {\pi ^ - }}}} \right|$ at $\sqrt s = 33\,MeV$ below the K̄N threshold is presented, in relation with the Λ(1405) properties studies. The analysis procedure adopted in the serarch for K− multi-nucleon absorption cross sections and Branching Ratios will be also described.


1974 ◽  
Author(s):  
A. Levy ◽  
D. Brick ◽  
M. Hodous ◽  
R. Hulsizer ◽  
V. Kistiakowsky ◽  
...  

2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
Patrick Draper ◽  
Jonathan Kozaczuk ◽  
Scott Thomas

Abstract A primary goal of a future e+e− collider program will be the precision measurement of Higgs boson properties. For practical reasons it is of interest to determine the minimal set of detector specifications required to reach this and other scientific goals. Here we investigate the precision obtainable for the e+e−Zhμ+μ−X inclusive cross section and the Higgs boson mass using the di-muon recoil method, considering a detector that has only an inner tracking system within a solenoidal magnetic field, surrounded by many nuclear interaction lengths of absorbing material, and an outer muon identification system. We find that the sensitivity achievable in these measurements with such a tracking detector is only marginally reduced compared to that expected for a general purpose detector with additional electromagnetic and hadronic calorimeter systems. The difference results mainly from multi-photon backgrounds that are not as easily rejected with tracking detectors. We also comment on the prospects for an analogous measurement of the e+e−→Zh→e+e−X inclusive cross section. Finally, we study searches for light scalars utilizing the di-muon recoil method, estimating the projected reach with a tracking or general purpose detector.


2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
C. A. Flett ◽  
J. A. Gracey ◽  
S. P. Jones ◽  
T. Teubner

Abstract We compute the exclusive electroproduction, γ*p → Vp, of heavy quarkonia V to NLO in the collinear factorisation scheme, which has been formally proven for this process. The inclusion of an off-shell virtuality Q2 carried by the photon extends the photoproduction phase space of the exclusive heavy quarkonia observable to electroproduction kinematics. This process is relevant for diffractive scattering at HERA and the upcoming EIC, as well as at the proposed LHeC and FCC.


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