摘要:

AbstractSome important types of spectroscopic experiments which allow to detect substructures masked by the Doppler width of the lines are discussed within a unified theoretical framework. It is pointed out that, in case of a three‐ or more‐level system, besides saturation effects also processes of Raman type play an essential role. The effect of high intensity of one (monochromatic) partial wave on the shape and width of the resonances (inverted Lamb dip) is studied in detail taking fully into account the dynamic Stark effect in addition to the power‐broadening of the holes burnt into the absorption pr

ISSN:0015-8208    

DOI:10.1002/prop.19740220102

出版商:WILEY‐VCH Verlag    

年代:1974

数据来源: WILEY

摘要:

AbstractIn the present paper it is shown that the Born diagram model with an overall phenomenological form factor suggested in papers [2, 3] on the basis of the ideas of universal interaction ofQ‐meson with hadrons describes well the experimental data on the reaction π−p →Q°n in a wide range of energies 2.7 GeV/c≦QL≦ 17 GeV/cat small momentum transfers |t| ≦ 0.2 (GeV/c)2. The connection of the Born diagram model with the other high energy models is considered. On one hand, we show that the absorption account in many respects, though not literally, comes to forming an overall form factor. On the other hand, the normalization of amplitudes of the traditional absorptive one‐pion exchange models to the Born diagrams att= 0 lays on the absorptive parameters the condition σtotC/8πA= 1 corresponding to the total absorption of the low partial waves. In this case the one‐pion exchange models with absorption coincide at alltwith the Born diagram model with absorption and the reaction aplitudes are independent of a choice of the initial vecto

ISSN:0015-8208    

DOI:10.1002/prop.19740220103

出版商:WILEY‐VCH Verlag    

年代:1974

数据来源: WILEY

ISSN:0015-8208    

DOI:10.1002/prop.19740220104

出版商:WILEY‐VCH Verlag    

年代:1974

数据来源: WILEY

ISSN:0015-8208    

DOI:10.1002/prop.19740220101

出版商:WILEY‐VCH Verlag    

年代:1974

数据来源: WILEY