Privacy and Security Notice

Privacy and Security Notice

E99007 , GEp(II)

Run summaries and settings

Q²= 5.6 GeV², first part (11/12 - 11/21)
Q²= 5.6 GeV², second part (12/1 - 12/7)
Q²= 4.8 GeV²
Q²= 4.0 GeV²
Q²= 3.5 GeV²

Beam energy

Before the Thanksgiving break (11/3-11/21, 2000), beam energy was measured with Arc and EP.

Arc (11/6) E = 4606.7 +/- 1.5 MeV (see Halog entry)
EP (11/21) E = 4606.7 +/- 0.6 MeV (see Halog entry)

After the Thanksgiving break (12/1-12/19, 2000), beam energy was measured with EP only.

EP (12/1) E = 4588.5 +/- 0.8 (stat) MeV . Coplanarity for trigger was not good, and there was a fair amount of background (see Halog entry)

Kinematic cuts

	Q² = 3.5 GeV²	Q² = 4.0 GeV²	Q² = 4.8 GeV²	Q² = 5.6 GeV²
theta_p (mrd)	-70 / +70	-70 / +63	-70 / +65	-70 / +65
phi_p (mrd)	-26 / +18	-28 / +26	-28 / +30	-29 / +31
y_p (mm)	-45 / +40	-42 / +38	-35 / +32	-30 / +28
delta_p (%)	-3.3 / +4.5	-5.5 / +4.8	-5.2 / +4.4	-5.5 / +4.0
theta_e (mrd)	-65 / +70	-80 / +80	-110 / +110	-150 / +150
phi_e (mrd)	-30 / +25	-40 / +40	-60 / +60	-80 / +80
zclose (cm)	320 / 385	270 / 385	270 / 385	270 / 385