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Study of e+e−→pp¯ in the vicinity of ψ(3770)
Study of e+e−→pp¯ in the vicinity of ψ(3770)
Using 2917 pb−1 of data accumulated at 3.773 GeV , 44.5 pb−1 of data accumulated at 3.65 GeV and data accumulated during a ψ(3770) line-shape scan with the BESIII detector, the reaction e+e−→pp¯ is studied considering a possible interference between resonant and continuum amplitudes. The cross section of e+e−→ψ(3770)→pp¯ , σ(e+e−→ψ(3770)→pp¯) , is found to have two solutions, determined to be (0.059−0.020+0.070±0.012) pb with the phase angle ϕ=(255.8−26.6+39.0±4.8)° ( <0.166 pb at the 90% confidence level), or σ(e+e−→ψ(3770)→pp¯)=(2.57−0.13+0.12±0.12) pb with ϕ=(266.9−6.3+6.1±0.9)° both of which agree with a destructive interference. Using the obtained cross section of ψ(3770)→pp¯ , the cross section of pp¯→ψ(3770) , which is useful information for the future PANDA experiment, is estimated to be either (9.8−3.9+11.8) nb ( <27.5 nb at 90% C.L.) or (425.6−43.7+42.9) nb .
- Oregon State University United States
4215
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citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).0 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).0 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
Citations provided by BIP!Popularity provided by BIP!- National Science Foundation (NSF)
- 0010118
- Directorate for Engineering | Division of Civil, Mechanical & Manufacturing Innovation
- Oregon State University United States
Using 2917 pb−1 of data accumulated at 3.773 GeV , 44.5 pb−1 of data accumulated at 3.65 GeV and data accumulated during a ψ(3770) line-shape scan with the BESIII detector, the reaction e+e−→pp¯ is studied considering a possible interference between resonant and continuum amplitudes. The cross section of e+e−→ψ(3770)→pp¯ , σ(e+e−→ψ(3770)→pp¯) , is found to have two solutions, determined to be (0.059−0.020+0.070±0.012) pb with the phase angle ϕ=(255.8−26.6+39.0±4.8)° ( <0.166 pb at the 90% confidence level), or σ(e+e−→ψ(3770)→pp¯)=(2.57−0.13+0.12±0.12) pb with ϕ=(266.9−6.3+6.1±0.9)° both of which agree with a destructive interference. Using the obtained cross section of ψ(3770)→pp¯ , the cross section of pp¯→ψ(3770) , which is useful information for the future PANDA experiment, is estimated to be either (9.8−3.9+11.8) nb ( <27.5 nb at 90% C.L.) or (425.6−43.7+42.9) nb .