Kinematics

HRS Calibration

HRS(L) and HRS (R) C(e,e')

Kin	Ein [MeV]	HRS(L) Electrons		HRS(R) Electrons		BigBite (not in use)		Neutron Arm (not in use)		Target	Plots	MCEEP
H#		P(e')	Theta (e')	P(e')	Theta (e')	P	Theta	P	Theta
1	1162	1204.2	15	1204.2	-15					Carbon	Kin Map
2	1162	1181.1	15	1181.1	-15					Carbon	Kin Map
3	1162	1157.9	15	1157.9	-15					Carbon	Kin Map
4	1162	1134.7	15	1134.7	-15					Carbon	Kin Map
5	1162	1111.6	15	1111.6	-15					Carbon	Kin Map		-

Quasi Elastic C(e,e'p)

• This calibration should be done AFTER the change to 2 pass

Kin	Ein [MeV]	HRS(L) Electrons		HRS(R) Protons		BigBite (not in use)		Neutron Arm (not in use)		Target	Plots	MCEEP
G#		P(e')	Theta (e')	P(p)	Theta (p)	P	Theta	P	Theta
1	2262	2090.3	15	592	-65.8					Carbon	Kin Map
2	2262	2139.9	12.5	493	-69.5					Carbon	Kin Map

Quasi Elastic C(e,e'p)

• This calibration should be done AFTER polarity change

Kin	Ein [MeV]	HRS(L) Protons		HRS(R) Electrons		BigBite (not in use)		Neutron Arm (not in use)		Target	Plots	MCEEP
G#		P(p)	Theta (p)	P(e')	Theta (e')	P	Theta	P	Theta
3	2262	592	65.8	2090.3	-15					Carbon	Kin Map
4	2262	493	69.5	2139.9	-12.5					Carbon	Kin Map

BigBite Calibration

H(e,e'p) HRS(L) and BigBite

Kin	Ein [MeV]	HRS(L) Electrons		HRS(R) (not in use)		BigBite (-68 Deg)*		Neutron Arm (not in use, at 50 deg)		Target	Plots	MCEEP
A#		P(e')	Theta (e')	P	Theta	P(p)	Theta (p)	P	Theta
1	1162	1099.0	17.5		-12.5	349.5	-71.0		-50	4cm LH2	Kin Map
2	1162	1077.5	20.5		-12.5	407.1	-68.0		-50	4 cm LH2	Kin Map
3	1162	1057.9	23		-12.5	454.2	-65.5		-50	4 cm LH2	Kin Map
4	2262	2139.7	12.5		-12.5	494.4	-69.5		-50	4 cm LH2	Kin Map
5	2262	2090.3	15		-12.5	593.0	-65.8		-50	4 cm LH2	Kin Map		-

• We do not know how to get within the constrains protons of more than 600 MeV/c to BB for Calibration.
• 1st pass is not sure due to Qweak

Full acceptance calibration of BigBite C(e,e'p) and C(e,p)

Kin	Ein [MeV]	HRS(L) (Electrons)		HRS(R) (not in use) (not in use)		BigBite (-68 Deg)*		Neutron Arm (not in use, at 50 deg)		Target	Plots	MCEEP
B#		P(e')	Theta (e')	P	Theta	P(p)	Theta (p)	P	Theta
1	2262	2090.3	15		-12.5		-68		-50	1 mm Carbon	Kin Map
2	2262	2090.3	15		-12.5		-68		-50	multifoil Carbon	Kin Map

Full acceptance calibration of BigBite d(e,e'p) and d(e,p)

Kin	Ein [MeV]	HRS(L) (Electrons)		HRS(R) (not in use) (not in use)		BigBite (-68 Deg)*		Neutron Arm (not in use, at 50 deg)		Target	Plots	MCEEP
C#		P(e')	Theta (e')	P	Theta	P(p)	Theta (p)	P	Theta
1	2262	2090.3	15		-12.5		-68		-50	4 cm LH2	Kin Map

Neutron Array calibration

H(e,e'p) HRS(L) and Neutron Array for protons

Kin	Ein [MeV]	HRS(L) Electrons		HRS(R) (not in use)		BigBite (Not in use)		Neutron Arm no lead wall 50 Deg 15m from target		Target	Plots	MCEEP
D#		P(e')	Theta (e')	P	Theta	P(p)	Theta (p)	P	Theta
1	2262	1777.75	27.5		-12.5		-68	1069.2	-50	4 cm LH2	Kin Map

d(e,e'pn) x<1 HRS(L), HRS(R) and Neutron Array (n - efficiency)

Kin	Ein [MeV]	HRS(L) PROTONS		HRS(R) ELECTRONS		BigBite at -99 Deg, Magnet on detector off		Neutron Arm Behind BigBite and lead wall		Target	Plots	MCEEP
E#		P(p)	Theta (p)	P(e')	Theta(e')	P	Theta	P(n)	Theta(n)
1	2262	778.7	59.2	1948.7	-12.5		-99	250	-99	4 cm LH2	Kin Map
2	2262	985.8	51.9	1757.9	-12.5		-99	400	-99	4 cm LH2	Kin Map

• In this calibration we need to switch the polarity of HRS arms.

D(e,e'pn) Triple coincidence for x>1

Kin	Ein [MeV]	HRS(L) Electrons		HRS(R) Protons		BigBite		Neutron Arm		Target	Plots	MCEEP
L#		P(e')	Theta (e')	P	Theta	P(p)	Theta (p)	P	Theta
1	4462	3609.4	20.3	1375.5	-33.4	500	-98.2	500	-98.2	4 cm LD2	Kin Map