Kinematics for E98-108

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Kinematics for E98-108

January 2001 Kinematics of 1^st Part of E98-108

To better accept the Sigma-hyperon within our acceptance, Joerg Reinhold had found that we should change the electron momentum by dropping it by about 1%. As of 1-24-01, we have done that.

In December 2000 John LeRose investigated the maximum momentum of the HRSR. The maximum current in the Right Dipole of 1135.19 Amps corresponds to 3.1447 GeV/c.
At 5.618 GeV incident beam energy, we will first run the four Q²=2.35 (GeV/c)² points, then the LT-interference points, and finally the four Q²=1.90 (GeV/c)²

January 2001 Kinematics of 1^st Part of E98-108
L/T Separation Kinematics

E₀	Q²	W	E_f	theta_e	P_K	theta_K	t(=t_min)	Epsilon	diff cross sec	counts/
GeV	(GeV/c)²	GeV	GeV/c	deg.	GeV/c	deg.	GeV²		nb/GeV-sr²	hours
5.618	2.35	1.80	3.077	21.14	1.741	-22.40	-.9498	.7960	1.06	1E4/ 4
5.618	2.35	1.85	2.981	21.48	1.893	-21.38	-.8562	.7812	1.00	4E3/ 4
5.618	2.35	1.98	2.719	22.51	2.266	-18.83	-.6737	.7368	0.826	1E4/ 4
5.618	2.35	2.08	2.504	23.46	2.542	-16.98	-.5716	.6962	0.710	1E4/ 4
5.618	1.90	1.905	3.110	18.89	1.890	-21.02	-.6183	.8103	1.877	1E4/ 4
5.618	1.90	1.94	3.039	19.11	1.986	-20.29	-.5790	.7997	1.798	1E4 / 4
5.618	1.90	2.00	2.925	19.52	2.147	-19.03	-.5203	.7801	1.842	1E4/ 4
5.618	1.90	2.14	2.608	20.64	2.521	-16.41	-.4143	.7262	1.312	1E4 / 4

Maximum |t| Sig LT-interference Kinematics

E₀	Q²	W	E_f	theta_e	P_K	theta_K	t	theta_CM	Asym.	counts/
GeV	(GeV/c)²	GeV	GeV	deg.	GeV/c	deg.	GeV²	degrees		hours
5.618	1.90	1.94	3.039	19.11	1.930	-14.67/-25.91	-.6802	21.61	.11	2 x 1E4 / 4+4
5.618	1.90	1.94	3.039	19.11	1.890	-12.69/-27.88	-.7602	29.02	.20	2 x 1E4 / 4+4
5.618	1.90	2.00	2.924	19.52	2.104	-14.27/-23.88	-.6000	18.20	.11	2 x 1E4 / 4+4
5.618	1.90	2.00	2.924	19.52	2.068	-12.55/-25.59	-.6650	24.61	.20	2 x 1E4 / 4+4