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Offline Energy Calculation



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The below list is for each stack/resonance in reverse chronological order; the resonance name is followed by the start date of the data taking and the "nominal" energy from the logbook. The avalable links give a table of the calculated energy, the luminosity (from the web) and the energy weighted with the luminosity run per run for that particular "nominal" point. It is also available a plot of the energy, the sigma of the beam and the dL versus time.

The reference orbit used for the calculation is the psi' of stack 67. The "old" reference orbit is the psi' of stack 1. The energy calculation keeps in account the saturation of the BPMs.

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Last update of this page -- 23:30 September 2, 1997



Stack 79 - * pipi97-09-17: nominal 3270 MeV
Stack 79 - * chione97-09-17: nominal 3495 MeV
Stack 79 - * chitwo97-09-16: nominal 3555.8 MeV; 3 runs at luminosities of 6.5, 4.0 and 2.0 x 10^31
Stack 79 - * ddbar97-09-16: nominal 3859 MeV
Stack 79 - * ddbar97-09-15: nominal 4289 MeV
Stack 78 - * chizero97-09-12: nominal 3430.0 MeV
Stack 77 - * chizero97-09-10: nominal 3430 MeV
Stack 77 - * etacp97-09-09: nominal 3633.1 MeV
Stack 76 - * pipi97-09-06: nominal 3320 MeV

Stack 75 - * chione97-09-05: nominal 3510.90 MeV
text information , energy vs time (ps).
Stack 74 - * chione97-09-02: nominal 3510.9 MeV
text information , energy vs time (ps).
Stack 73 - * etac97-09-01: nominal 3101 MeV
Stack 72 - * chizero97-08-31: nominal 3407.4 MeV
Stack 71 - * chizero97-08-30: nominal 3406.4 MeV
Stack 70 - * chizero97-08-29: nominal 3415.2 MeV
Stack 69 - * chizero97-08-28: nominal 3415.4 MeV
Stack 69 - * etacp97-08-27: nominal 3633.4 MeV
Stack 68 - * chizero97-08-23: nominal 3418.0 MeV
Stack 68 - * ddbar97-08-23: nominal 3726 MeV

Stack 67 - * psip97-08-18: nominal 3687.0, 3686.5, 3686.23, 3686.0, 3685.7, 3685.45 and 3685.001 MeV
THIS SCAN HAS BEEN USED AS REFERENCE ORBIT. THE ONLY ENERGY CALCULATION AVAILABLE ARE THE ONES FROM THE OLD REFERENCE ORBIT.
text information , energy vs time (ps).
Stack 66 - * pipi97-08-16: nominal 3216 MeV
not available yet
Stack 65 - * chione97-08-13: nominal 3513.1, 3511.5, 3511.1, 3510.75, 3510.4, 3510.0 and 3508.7 MeV
text information , energy vs time (ps).
Stack 64 - * hc97-08-11: nominal 3526.1 MeV
text information , energy vs time (ps).
Stack 63 - * hc97-08-07: nominal 3525.5 MeV
text information , energy vs time (ps).
Stack 62 - * jpsi97-08-04: nominal 3525.1 Mev
text information , energy vs time (ps).
Stack 61 - * 1p197-07-31: nominal Mev
text information , energy vs time (ps).
Stack 60 - * jpsi97-07-27: nominal 3096.6 Mev
OLD REFERENCE ORBIT DATA!
text info non available, energy vs time (ps).
Stack 60 - * hc97-07-27: nominal 3525.5 Mev
text information , energy vs time (ps).
Stack 59 - * hc97-07-25: nominal 3525.5 Mev
text information , energy vs time (ps).
Stack 58 - * hc97-07-22: nominal3524.7 Mev
text information , energy vs time (ps).
Stack 57 - * hc97-07-19: nominal 3525.8 MeV
text information , energy vs time (ps). -
Stack 56 - * hc97-07-17: nominal 3525.7 MeV
text information , energy vs time (ps). -
Stack 55 - * hc97-07-04: nominal 3525.2 MeV
information , energy vs time (ps).
Stack 54 - * hc97-07-03: nominal 3526.5 MeV
text information , energy vs time (ps). -
Stack 53 - * hc97-06-28: nominal 3527.2 MeV
text information , energy vs time (ps).
Stack 52 - * hc97-06-25: nominal 3526.35 MeV
text information , energy vs time (ps).
Stack 51 - * hc97-06-22: nominal 3526.3 MeV
text information , energy vs time (ps).
Stack 50 - * hc97-06-19: nominal 3528.5 MeV
text information , energy vs time (ps).
Stack 50 - * chitwo97-06-19: nominal 3555.9 MeV
text information , energy vs time (ps).
Stack 49 - * etac97-06-15 2982.7 MeV
Stack 48 - * etac97-06-13 2985.9 MeV
Stack 47 - * etac97-06-11 2930.6 MeV
Stack 46 - * etac97-06-09 2911 MeV
Stack 45 - * etac97-06-07 2956.3 MeV
Stack 44 - * etac97-06-05 2956.2 MeV
Stack 43 - * etac97-06-02 3004.4 MeV
Stack 42 - * etac97-05-31 2912 MeV
Stack 42 - * jpsi97-05-31: 3096.90 MeV
Stack 41 - * etac97-05-28 2972.9 MeV
Stack 40 - * etac97-05-19 2966.39 MeV
Stack 40 - * psip97-05-17: 3686.18, 3686.35, 3686.01, 3685.75, 3685.60, 3685.31 and 3685.0 MeV
OLD INFORMATION CALCULATED WITH ETA PARAMETER
text information (temporary), energy vs time (ps).
Stack 39 - * etac97-05-16 2951.0 MeV
Stack 39 - * psip97-05-15: 3686.95 and 3686.40 MeV
text information, energy vs time (ps).
Stack 38 - * chitwo97-05-13: 3556.19, 3555.96 and 3555.59 MeV
text information , energy vs time (ps).
Stack 37 - * etac97-05-11 2989.97 MeV
Stack 36 - * etac97-05-10 3001.1 MeV
Stack 35 - * etac97-05-05 2951.1 MeV
Stack 34 - * etac97-05-03 2990.4 MeV
Stack 33 - * etac97-05-01 3000.7 MeV
Stack 32 - * etac97-04-29 2975.2 MeV
Stack 31 - * etac97-04-27 2985.6 MeV
Stack 30 - * etac97-04-25 3008.8 MeV
Stack 29 - * etac97-04-24 2930.2 MeV
Stack 28 - * etac97-04-23 2929.3 MeV
Stack 27 - * etac97-04-21 2950.2 MeV
Stack 26 - * etac97-04-20 2969.8 MeV
Stack 25 - * etac97-04-17 2995.80 MeV
Stack 24 - * etac97-04-15 2973.75 MeV
Stack 23 - * etac97-04-13 2929.98 MeV
Stack 23 - * jpsi97-04-12 3096.9 MeV (trigger tests)
Stack 22 - * psip97-04-09: 3686.125, 3686.275, 3685.987, 3685.816, and 3685.72 MeV
text information , energy vs time (ps).
Stack 21 - * chione97-03-18: 3511.8, 3510.7 and 3509.2 MeV
text information energy vs time (ps). - warning: for this stack dL /e835/people/6 mm.
Stack 21 - * 1P1 97-03-15: nominal 3526.8 and 3525.6 MeV
OLD REFERENCE ORBIT DATA!
text information , energy vs time (ps).
Stack 20 - * chione97-03-13: 3511.27 and 3509.87 MeV
text information , energy vs time (ps).
Stack 20 - * 1P1 97-03-12: nominal 3526.60 MeV
OLD REFERENCE ORBIT DATA!
text information , energy vs time (ps).
Stack 20 - * chitwo97-03-10: 3557.978, 3556.768, 3556.065, 3555.605 and 3554.638 MeV>
text information , energy vs time (ps).
Stack 19 - * jpsi97-03-04
Stack 19 - * chione97-03-03: 3510.6 MeV
text information , energy vs time (ps). -
Stack 19 - * 1P1 97-03-01: nominal 3526.27 MeV
text information , energy vs time (ps). - warning: for this stack dL /e835/people/9 mm.
Stack 18 - * etac97-02-27 2980 MeV (again)
Stack 17 - * etac97-02-25 2980 MeV
Stack 17 - * etacp97-02-24 3576 MeV
OLD REFERENCE ORBIT DATA!
text information , energy vs time (ps).
Stack 17 - * psip97-02-23
text information , energy vs time (ps).
Stack 16 - * etac97-02-21 2988 MeV
Stack 15 - * etac97-02-19 2965 MeV
Stack 15 - * 1P1 97-02-18: nominal 3536 MeV
OLD REFERENCE ORBIT DATA!
text information , energy vs time (ps). - warning: for this stack dL /e835/people/6 mm.
Stack 15 - * etacp97-02-16 3640 and 3608 MeV
Stack 14 - * etac97-02-14 3025 MeV
Stack 14 - * etacp97-02-13: 3650 MeV
Stack 13 - * etac97-02-12 3025 MeV
Stack 13 - * etacp97-02-10: 3660 and 3585 MeV
Stack 12 - * etac97-02-07 2950 MeV
Stack 12 - * etacp97-02-05: 3595 and (again) 3580 MeV
Stack 11 - * etacp97-02-02: 3590 and 3580 MeV
Stack 10 - * etacp97-01-30 3655 and 3643 MeV
Stack 09 - * etac97-01-27 2988 MeV
Stack 09 - * chitwo97-01-26 peak at both high and low luminosity
text information not available yet, energy vs time (ps).
Stack 09 - * etacp97-01-24: 3600 MeV
Stack 08 - * etacp97-01-20 3610 MeV
Stack 08 - * psip97-01-19
text information , energy vs time (ps).
Stack 07 - * jpsi96-12-07
Stack 07 - * etacp96-12-05 3630 and 3620 MeV
Stack 07 - * psip96-12-04
Stack 06 - * etacp96-11-28 3635, 3615 and 3604 MeV
Stack 06 - * psip96-11-27
text information , energy vs time (ps).
Stack 05 - * jpsi96-11-23: nominal 3096.91
OLD REFERENCE ORBIT DATA!
text information , energy vs time (ps).
Stack 05 - * etacp96-11-20 3644 and 3625 MeV
Stack 04 - * chitwo96-11-10: nominal 3557, 3556, 3555, and 3544 MeV
text information , energy vs time (ps).
Stack 03 - * chitwo96-10-25: nominal 3556.56
,text information , energy vs time (ps).
Stack 02 - * psip96-10-07
Stack 01 - * psip96-10-01

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useful links:

E835 Home Page


Luminosity Home Page
Golden Data Stream and DSTs Page
BPM position vs time stack per stack
ACNET run number stack per stack
Single Value Decomposition Threshold Plots
Beam Position and Angle at the target from BPMs
BPM saturation history
Systematic error in the energy calculation neglecting 2nd order terms in the calculation of dL
E835 run info table (under construction)


Maintained by Gabriele Garzoglio and Federico Bertini.
Comments, problems or questions -- please send mail.