BmnRun9DMflat.h

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/*
    BM@N alignment routine
    BM@N experiment at NICA complex, JINR, 2026
 
    Department: Math & Soft Group of HEP lab
    Author:     Claude (Opus 5.5)
    Supervisor: Igor Polev
 
    BmnRun9DMflat class declaration
    Run9 representation of BmnRun9DM without composite nodes
*/
 
#ifndef BMNRUN9DMFLAT_H
#define BMNRUN9DMFLAT_H
 
#include "BmnRun9DM.h"
 
/*
 *  The elements and their order are those of BmnRun9DM, with or without the
 *  target. Only the station-half composites are gone: the parametrization is
 *  flat. A coherent motion of a station half is then carried by its elements
 *  alone, so the flat presigmas are the hierarchical ones added in quadrature.
 */
 
class BmnRun9DMflat : public BmnRun9DM
{
  public:
    virtual std::vector<Composite> Composites() const override { return {}; }
 
    explicit BmnRun9DMflat(Bool_t withTarget = kTRUE)
        : BmnRun9DM(withTarget)
    {
        fDescription = withTarget ? "Run9 VSP, FSD, GEM zones all independent plus the target, flat: 111 elements"
                                  : "Run9 VSP, FSD, GEM zones all independent, no target, flat: 110 elements";
    }
    virtual ~BmnRun9DMflat() override;   // out-of-line vtable anchor
};
 
#endif   // BMNRUN9DMFLAT_H