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Experiment: Measurement of the Σ+ π− Photoproduction Line Shapes Near the Λ(1405), 2012
Spokespersons: R. A. Schumacher
Measurement comment: Low and High Photon Energy = 2.47 2.73 GeV Low, High, Mean W = 2.35 2.45 2.40 GeV Kaon angle range (cosine) = -0.60 0.88
Publication:
Quantity measured: dσ/dM, mcbn/GeV
Differential cross section, where M is invariant mass of reaction products
Beam: γ, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: K+ Σ+ π−, polarization: none
| W : | 2.35 — 2.45 GeV |
|---|---|
| Eγ : | 2.47 — 2.73 GeV |
|
Observable quantity measured (Y axis): dσ/dM, mcbn/GeV
Parameter (X axis): M, GeV |
Click here to get data in text file, delimited with tabs.
Measured data:
|
M,
GeV |
dσ/dM,
mcbn/GeV |
Stat. error,
mcbn/GeV |
Total error,
mcbn/GeV |
|---|---|---|---|
| 1.3025 | 0 | 0 | 0 |
| 1.3075 | 0 | 0 | 0 |
| 1.3125 | 0 | 0 | 0 |
| 1.3175 | 0 | 0 | 0 |
| 1.3225 | 0 | 0 | 0 |
| 1.3275 | 0 | 0 | 0 |
| 1.3325 | 0 | 0 | 0 |
| 1.3375 | 0 | 0 | 0 |
| 1.3425 | 0.077 | 0.067 | 0.075 |
| 1.3475 | 0.007 | 0.018 | 0.018 |
| 1.3525 | 0.09 | 0.042 | 0.047 |
| 1.3575 | 0.195 | 0.054 | 0.059 |
| 1.3625 | 0.232 | 0.05 | 0.053 |
| 1.3675 | 0.406 | 0.063 | 0.063 |
| 1.3725 | 0.305 | 0.043 | 0.045 |
| 1.3775 | 0.398 | 0.046 | 0.049 |
| 1.3825 | 0.534 | 0.044 | 0.051 |
| 1.3875 | 0.557 | 0.041 | 0.044 |
| 1.3925 | 0.658 | 0.044 | 0.05 |
| 1.3975 | 0.715 | 0.042 | 0.056 |
| 1.4025 | 0.739 | 0.04 | 0.051 |
| 1.4075 | 0.8 | 0.039 | 0.061 |
| 1.4125 | 0.845 | 0.04 | 0.054 |
| 1.4175 | 0.905 | 0.04 | 0.076 |
| 1.4225 | 0.814 | 0.038 | 0.057 |
| 1.4275 | 0.775 | 0.038 | 0.058 |
| 1.4325 | 0.555 | 0.034 | 0.039 |
| 1.4375 | 0.426 | 0.032 | 0.033 |
| 1.4425 | 0.262 | 0.029 | 0.032 |
| 1.4475 | 0.191 | 0.026 | 0.028 |
| 1.4525 | 0.206 | 0.024 | 0.024 |
| 1.4575 | 0.151 | 0.024 | 0.027 |
| 1.4625 | 0.152 | 0.022 | 0.023 |
| 1.4675 | 0.122 | 0.02 | 0.022 |
| 1.4725 | 0.144 | 0.022 | 0.022 |
| 1.4775 | 0.134 | 0.022 | 0.022 |
| 1.4825 | 0.135 | 0.023 | 0.024 |
| 1.4875 | 0.16 | 0.024 | 0.025 |
| 1.4925 | 0.128 | 0.024 | 0.025 |
| 1.4975 | 0.076 | 0.02 | 0.021 |
| 1.5025 | 0.09 | 0.022 | 0.023 |
| 1.5075 | 0.104 | 0.025 | 0.025 |
| 1.5125 | 0.147 | 0.032 | 0.032 |
| 1.5175 | 0.145 | 0.034 | 0.034 |
| 1.5225 | 0.046 | 0.025 | 0.025 |
| 1.5275 | 0.039 | 0.02 | 0.02 |
| 1.5325 | 0.143 | 0.028 | 0.029 |
| 1.5375 | 0.134 | 0.026 | 0.026 |
| 1.5425 | 0.172 | 0.026 | 0.029 |
| 1.5475 | 0.207 | 0.027 | 0.037 |
| 1.5525 | 0.165 | 0.024 | 0.03 |
| 1.5575 | 0.176 | 0.026 | 0.033 |
| 1.5625 | 0.156 | 0.025 | 0.03 |
| 1.5675 | 0.13 | 0.024 | 0.026 |
| 1.5725 | 0.159 | 0.025 | 0.031 |
| 1.5775 | 0.13 | 0.022 | 0.026 |
| 1.5825 | 0.148 | 0.025 | 0.029 |
| 1.5875 | 0.117 | 0.023 | 0.025 |
| 1.5925 | 0.142 | 0.026 | 0.029 |
| 1.5975 | 0.091 | 0.026 | 0.027 |