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Measurement E69M2

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Experiment: E89-032, 1999

Spokespersons: A. Stavinskiy

Publication:

Quantity measured: R, dimensionless
Correlation function R(q)=Nr(q)/Nm(q), Nr and Nm are the numbers of proton pairs from the real events and those combined from protons taken from different events, respectively.
Beam: γ, polarization: none
Target: He4 (Z=2, A=4), polarization: none
Final state: ppX, polarization: none

W : 0.5 — 3.5 GeV
xb : 0
Eγ : 0.5 — 3.5 GeV

Observable quantity measured (Y axis): R, dimensionless
Plot measurement data

Parameter (X axis): q, GeV/c

Click here to get data in text file, delimited with tabs.

Measured data:

q,
GeV/c
R,
dimensionless
Data errors,
dimensionless
0.015 1.175 0.919
0.025 5.477 2.565
0.035 6.399 2.132
0.045 6.741 1.607
0.055 5.383 0.951
0.065 4.144 0.553
0.075 3.55 0.367
0.085 2.732 0.226
0.095 2.599 0.18
0.105 2.104 0.129
0.115 1.832 0.1
0.125 1.626 0.086
0.135 1.61 0.078
0.145 1.301 0.063
0.155 1.263 0.058
0.165 1.285 0.056
0.175 1.146 0.049
0.185 1.112 0.046
0.195 1.008 0.041
0.205 0.993 0.039
0.215 0.971 0.037
0.225 0.949 0.035
0.235 0.989 0.035
0.245 0.994 0.034
0.255 0.983 0.033
0.265 0.974 0.032
0.275 0.986 0.031
0.285 0.969 0.03
0.295 0.977 0.029
0.305 0.98 0.029
0.315 0.925 0.027
0.325 0.978 0.027
0.335 0.979 0.027
0.345 0.965 0.026
0.355 1.111 0.028
0.365 1.029 0.026
0.375 0.977 0.024
0.385 1.023 0.025