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ZHANG Yu, XIE Jujun, CHEN Xurong. Scalar Meson f0(980) Photoproduction in γp→pf0(980) Reaction[J]. Nuclear Physics Review, 2016, 33(4): 409-413. doi: 10.11804/NuclPhysRev.33.04.409
Citation: ZHANG Yu, XIE Jujun, CHEN Xurong. Scalar Meson f0(980) Photoproduction in γp→pf0(980) Reaction[J]. Nuclear Physics Review, 2016, 33(4): 409-413. doi: 10.11804/NuclPhysRev.33.04.409

Scalar Meson f0(980) Photoproduction in γp→pf0(980) Reaction

doi: 10.11804/NuclPhysRev.33.04.409
Funds:  National Basic Research Program of China(973 Program)(2014CB845406); National Natural Science Foundation of China (11475227)
  • Received Date: 2015-12-25
  • Rev Recd Date: 2016-03-15
  • Publish Date: 2016-12-20
  • We study the scalar meson f0(980) in the γp→pf0(980) reaction within an effective Lagrangian approach. Based on previous studies, we calculate the differential cross sections of this reaction. We take two types of the propagators of vector mesons ρ and ω, one is the Regge form, the other one is the normal Feynman propagator. It is found that our theoretical results for the differential cross sections with the Feynman propagator are in agreement with the current experimental data. For the total cross sections, the results with the two types of propagator are much different. On the other hand, we predict the π+π- invariant mass distribution of the γp→pf0(980)→pπ+π- reaction. We find that the π+π- invariant mass distribution depends sensitively on the value of the coupling constant gf0KK. We hope that the future experiments can test our model calculation and give further constraints on the value of gf0KK and also the nature of f0(980).
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Scalar Meson f0(980) Photoproduction in γp→pf0(980) Reaction

doi: 10.11804/NuclPhysRev.33.04.409
Funds:  National Basic Research Program of China(973 Program)(2014CB845406); National Natural Science Foundation of China (11475227)

Abstract: We study the scalar meson f0(980) in the γp→pf0(980) reaction within an effective Lagrangian approach. Based on previous studies, we calculate the differential cross sections of this reaction. We take two types of the propagators of vector mesons ρ and ω, one is the Regge form, the other one is the normal Feynman propagator. It is found that our theoretical results for the differential cross sections with the Feynman propagator are in agreement with the current experimental data. For the total cross sections, the results with the two types of propagator are much different. On the other hand, we predict the π+π- invariant mass distribution of the γp→pf0(980)→pπ+π- reaction. We find that the π+π- invariant mass distribution depends sensitively on the value of the coupling constant gf0KK. We hope that the future experiments can test our model calculation and give further constraints on the value of gf0KK and also the nature of f0(980).

ZHANG Yu, XIE Jujun, CHEN Xurong. Scalar Meson f0(980) Photoproduction in γp→pf0(980) Reaction[J]. Nuclear Physics Review, 2016, 33(4): 409-413. doi: 10.11804/NuclPhysRev.33.04.409
Citation: ZHANG Yu, XIE Jujun, CHEN Xurong. Scalar Meson f0(980) Photoproduction in γp→pf0(980) Reaction[J]. Nuclear Physics Review, 2016, 33(4): 409-413. doi: 10.11804/NuclPhysRev.33.04.409
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