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F-DET-HCAL-BCK.2

Requirement details, history, relationships and interfaces associated with requirement F-DET-HCAL-BCK.2

CURRENT RECORD

Record Date: 03/02/2026 15:19
Identifier:	F-DET-HCAL-BCK.2	WBS:	6.03.01.05
Date Modified:		TBD:	FALSE
Status Date:		Status:	Approved
Description:	Shall accommodate the ability to complement e/m calorimeter by tail catching capability for electron ID purposes, especially below 3-4 GeV/c.
Comments:

ARCHIVE RECORDS

Record Date: 05/16/2025 17:04
Identifier:	F-DET-HCAL-BCK.2	WBS:	6.10.06
Date Modified:		TBD:	FALSE
Status Date:		Status:	Approved
Description:	Shall accommodate the ability to complement e/m calorimeter by tail catching capability for electron ID purposes, especially below 3-4 GeV/c.
Comments:

Record Date: 05/15/2025 20:34
Identifier:	F-DET-HCAL-BCK.2	WBS:
Date Modified:		TBD:	FALSE
Status Date:		Status:
Description:	Shall accommodate the ability to complement e/m calorimeter by tail catching capability for electron ID purposes, especially below 3-4 GeV/c.
Comments:

Record Date: 01/27/2025 16:43
Identifier:	F-DET-HCAL-BCK.2	WBS:	6.10.06
Date Modified:		TBD:	FALSE
Status Date:		Status:	Approved
Description:	Shall accommodate the ability to complement e/m calorimeter by tail catching capability for electron ID purposes, especially below 3-4 GeV/c.
Comments:

RELATIONSHIPS

Parents
G-DET-HCAL-BCK.1	Backward HCal shall provide functionality of a tail catcher for the high resolution e/m calorimeter in electron identification, as well as for jet kinematics measurement at small Bjorken x
Children
P-DET-HCAL-BCK.2	Shall provide capability to have energy resolution s(E)/E ~ 100%/sqrt(E) + a 10% constant term.
P-DET-HCAL-BCK.4	Must provide space to have tower depth of 3-4 interaction lengths (together with the e/m PWO crystal calorimeter) in order to suppress longitudinal leakage for relatively small hadron energies in the e-endcap.

INTERFACES

This function not yet implemented.