* $Id: crckin.cards,v 1.1 1997/04/15 20:21:56 waananen Exp waananen $ * * Use the NREF CARD from the cards file of the generator NREF 9600 * Various debug levels are supported - check the source code DEBU 0 * File to be processed by CRCKIN FILI 'krlw02.epio |EPIO' * Resulting file with Color Reconnection FILO 'krlw02.crc.epio |EPIO' NEVT 100 RMAR 1492 11212 ENDQ KCAR 0 / $TEXT POFF ************************************************************************ * CRCM : Color reconnection mode * --> = 0 : No reconnection * = 1 : Instantaneous reconnection - reconnection before shower * = 2 : Intermediate reconnection - reconnection after shower * = 3 : Strings described as spheres - instantaneous overlap. * = 4 : Strings described as spheres - time retarded overlap. * = 5 : Strings described as cylinders - instantaneous overlap. * = 6 : Strings described as cylinders - time retarded overlap. * = 7 : Strings as Vortex lines. May reconnect when they cross. * = 8 : Strings as Vortex lines. May reconnect when the total * String length is reduced. * SNFQ : Save Non Four-Quark events? * = 0 : No * --> = 1 : Yes * KCRB : Keep the Color Reconnection banks KFLJE and KCRC? * --> = 0 : No * = 1 : Yes * FRFR : Force Re-Fragmentation for CRCM=0? * --> = 0 : No * = 1 : Yes * RURN : Re-use Random Numbers from old generation? * This option is intended for test purposes _only_. * To use it you must first have created a Kingal file * with the seeds of RANMAR in the last three positions * of the KCRH bank. One thing to check is to have RURN=1, * FRFR=0 and CRCM=0. The output from this should equal * the output from RURN=0, FRFR=0 and CRCM=0. For this to * actually work one must first hack kinmar.f so that the * RNDM array that RNDM creates has length 1. * Also you must disable the secondary vertex spreading in * KGDECL or make sure that no RANMAR random numbers are * used between the call to LUEXEC and KGDECL. (This is the * case for KRLW02 for example). KGDECL holds the secondary * vertex spreading and is the only place in standard Kingal * where a random numbers are used. Hint: beware of LUTAUD. * * Note that when comparing outputs the results are not * quite the same due to loss of precision when * transferring to and from EPIO. If you really need high * precision - use unformatted IO. Ask the author for a * version of CRCKIN with this implemented. * Also Kingal does not perform garbage collection in * KEEVT so that the output from CRCKIN might be smaller * even though it contains the same banks (except the ones * that were dropped. * * --> = 0 : No * = 1 : Yes * * CRCM SNFQ KCRB FRFR RURN KCRC 6 1 1 1 1 * ************************************************************************ * Advanced Color Reconnection card (for use when IEXCRC>=4) * * Reference: T. Sjostrand, V.A.Khoze: Z. Phys. C62 (1994),281-309 * Short Summary: * Color reconnection is based on the overlap in time and space of * the two W systems. The extension of the system in time is described * by a Gaussian with sigma TFRAG. The spacial size is described * either by a sphere or a cylinder Gaussian distributed radius with * sigma RHAD or a vortex. * * TFRAG : Sigma of the timal distribution of the two W systems. * RHAD : Sigma of the distribution of radius of sphere/cylinder * RPROB : Strength of reconnection probability * * Recommended values: RHAD RPROB (see Reference above) * Sphere : 0.5 0.6 * Cylinder : 0.7 0.6 * * TFRAG RHAD RPROB GCRC 1.5 0.7 0.6 * ************************************************************************ * * Extra Parameters (which are not saved on the KINGAL EPIO file) * * These parameters are generator dependent and should be known by the * corresponding generator experts. They are the ones that are not put * in the LUND-ALEPH banks (eg. PMA1) or in the PART bank. * * KRLW02: *PMA1 7 / 150. *PMA1 8 / 300. END$