421 |
return lnl; |
return lnl; |
422 |
|
|
423 |
} |
} |
424 |
|
/** |
425 |
|
* Returns the effective angle, relative to the sensor, on each plane. |
426 |
|
* @param ip plane (0-5) |
427 |
|
* @param iv view (0=x 1=y) |
428 |
|
*/ |
429 |
|
Float_t TrkTrack::GetEffectiveAngle(int ip, int iv){ |
430 |
|
|
431 |
|
if(ip<0 || ip>5){ |
432 |
|
cout << "Float_t TrkTrack::GetEffectiveAngle(int "<<ip<<", int "<<iv<<") ==> wrong input"<<endl; |
433 |
|
return 0.; |
434 |
|
} |
435 |
|
|
436 |
|
float v[3]={xv[ip],yv[ip],zv[ip]}; |
437 |
|
//----------------------------------------- |
438 |
|
// effective angle (relative to the sensor) |
439 |
|
//----------------------------------------- |
440 |
|
float axv_geo = axv[ip]; |
441 |
|
float muhall_h = 297.61; //cm**2/Vs |
442 |
|
float BY = TrkParams::GetBY(v); |
443 |
|
float axv_eff = 0; |
444 |
|
if(ip==5) axv_geo = -1*axv_geo; |
445 |
|
if(ip==5) BY = -1*BY; |
446 |
|
axv_eff = 180.*atan( tan(axv_geo*acos(-1.)/180.) + muhall_h * BY * 0.0001)/acos(-1.); |
447 |
|
//----------------------------------------- |
448 |
|
// effective angle (relative to the sensor) |
449 |
|
//----------------------------------------- |
450 |
|
float ayv_geo = ayv[ip]; |
451 |
|
float muhall_e = 1258.18; //cm**2/Vs |
452 |
|
float BX = TrkParams::GetBX(v); |
453 |
|
float ayv_eff = 0; |
454 |
|
ayv_eff = 180.*atan( tan(ayv_geo*acos(-1.)/180.) + muhall_e * BX * 0.0001)/acos(-1.); |
455 |
|
|
456 |
|
if (iv==0)return axv_eff; |
457 |
|
else if(iv==1)return ayv_eff; |
458 |
|
else{ |
459 |
|
cout << "Float_t TrkTrack::GetEffectiveAngle(int "<<ip<<", int "<<iv<<") ==> wrong input"<<endl; |
460 |
|
return 0.; |
461 |
|
} |
462 |
|
|
463 |
|
}; |
464 |
|
|
465 |
//-------------------------------------- |
//-------------------------------------- |
466 |
// |
// |
467 |
// |
// |