1 // ParticleData.h is a part of the PYTHIA event generator.
2 // Copyright (C) 2010 Torbjorn Sjostrand.
3 // PYTHIA is licenced under the GNU GPL version 2, see COPYING for details.
4 // Please respect the MCnet Guidelines, see GUIDELINES for details.
6 // Header file for the classes containing particle data.
7 // DecayChannel contains info on a single decay channel.
8 // ParticleDataEntry contains info on a single particle species.
9 // ParticleData collects info on all particles as a map.
11 #ifndef Pythia8_ParticleData_H
12 #define Pythia8_ParticleData_H
16 #include "PythiaStdlib.h"
17 #include "ResonanceWidths.h"
19 #include "StandardModel.h"
23 //==========================================================================
25 // Forward reference to some classes.
27 class ResonanceWidths;
30 class SUSYResonanceWidths;
32 //==========================================================================
34 // This class holds info on a single decay channel.
40 DecayChannel(int onModeIn = 0, double bRatioIn = 0., int meModeIn = 0,
41 int prod0 = 0, int prod1 = 0, int prod2 = 0, int prod3 = 0,
42 int prod4 = 0, int prod5 = 0, int prod6 = 0, int prod7 = 0)
43 : onModeSave(onModeIn), bRatioSave(bRatioIn), currentBRSave(0.),
44 onShellWidthSave(0.), openSecPos(1.), openSecNeg(1.),
45 meModeSave(meModeIn), nProd(0), hasChangedSave(true) {
46 prod[0] = prod0; prod[1] = prod1; prod[2] = prod2; prod[3] = prod3;
47 prod[4] = prod4; prod[5] = prod5; prod[6] = prod6; prod[7] = prod7;
48 for (int j = 0; j < 8; ++j) if (prod[j] != 0 && j == nProd) ++nProd; }
50 // Member functions for input.
51 void onMode(int onModeIn) {onModeSave = onModeIn; hasChangedSave = true;}
52 void bRatio(double bRatioIn, bool countAsChanged = true) {
53 bRatioSave = bRatioIn; if (countAsChanged) hasChangedSave = true;}
54 void rescaleBR(double fac) {bRatioSave *= fac; hasChangedSave = true;}
55 void meMode(int meModeIn) {meModeSave = meModeIn; hasChangedSave = true;}
56 void multiplicity(int multIn) {nProd = multIn; hasChangedSave = true;}
57 void product(int i, int prodIn) {prod[i] = prodIn; nProd = 0;
58 for (int j = 0; j < 8; ++j) if (prod[j] != 0 && j == nProd) ++nProd;
59 hasChangedSave = true;}
60 void setHasChanged(bool hasChangedIn) {hasChangedSave = hasChangedIn;}
62 // Member functions for output.
63 int onMode() const {return onModeSave;}
64 double bRatio() const {return bRatioSave;}
65 int meMode() const {return meModeSave;}
66 int multiplicity() const {return nProd;}
67 int product(int i) const {return (i >= 0 && i < nProd) ? prod[i] : 0;}
68 bool hasChanged() const { return hasChangedSave;}
70 // Check for presence of particles anywhere in decay list.
71 bool contains(int id1) const;
72 bool contains(int id1, int id2) const;
73 bool contains(int id1, int id2, int id3) const;
75 // Input/output for current selection of decay modes.
76 // Takes into account on/off switches and dynamic width for resonances.
77 void currentBR(double currentBRIn) {currentBRSave = currentBRIn;}
78 double currentBR() const {return currentBRSave;}
80 // Input/output for nominal partial width; used by resonances.
81 void onShellWidth(double onShellWidthIn) {
82 onShellWidthSave = onShellWidthIn;}
83 double onShellWidth() const {return onShellWidthSave;}
84 void onShellWidthFactor(double factor) {onShellWidthSave *= factor;}
86 // Input/output for fraction of secondary open widths; used by resonances.
87 void openSec(int idSgn, double openSecIn) {
88 if (idSgn > 0) openSecPos = openSecIn; else openSecNeg = openSecIn;}
89 double openSec(int idSgn) const {
90 return (idSgn > 0) ? openSecPos : openSecNeg;}
94 // Decay channel info.
96 double bRatioSave, currentBRSave, onShellWidthSave, openSecPos,
98 int meModeSave, nProd, prod[8];
103 //==========================================================================
105 // This class holds info on a single particle species.
107 class ParticleDataEntry {
111 // Constructors: for antiparticle exists or not.
112 ParticleDataEntry(int idIn = 0, string nameIn = " ",
113 int spinTypeIn = 0, int chargeTypeIn = 0, int colTypeIn = 0,
114 double m0In = 0., double mWidthIn = 0., double mMinIn = 0.,
115 double mMaxIn = 0., double tau0In = 0.) : idSave(abs(idIn)),
116 nameSave(nameIn), antiNameSave("void"), spinTypeSave(spinTypeIn),
117 chargeTypeSave(chargeTypeIn), colTypeSave(colTypeIn), m0Save(m0In),
118 mWidthSave (mWidthIn), mMinSave(mMinIn), mMaxSave(mMaxIn),
119 tau0Save(tau0In), hasAntiSave(false), hasChangedSave(true),
120 resonancePtr(0) {setDefaults();}
121 ParticleDataEntry(int idIn, string nameIn, string antiNameIn,
122 int spinTypeIn = 0, int chargeTypeIn = 0, int colTypeIn = 0,
123 double m0In = 0., double mWidthIn = 0., double mMinIn = 0.,
124 double mMaxIn = 0., double tau0In = 0.) : idSave(abs(idIn)),
125 nameSave(nameIn), antiNameSave(antiNameIn), spinTypeSave(spinTypeIn),
126 chargeTypeSave(chargeTypeIn), colTypeSave(colTypeIn), m0Save(m0In),
127 mWidthSave (mWidthIn), mMinSave(mMinIn), mMaxSave(mMaxIn),
128 tau0Save(tau0In), hasAntiSave(true), hasChangedSave(true),
129 resonancePtr(0) {setDefaults();
130 if (toLower(antiNameIn) == "void") hasAntiSave = false;}
132 // Destructor: delete any ResonanceWidths object.
133 ~ParticleDataEntry();
135 // Initialization of some particle flags.
138 // Store pointer to whole particle data table/database.
139 void initPtr( ParticleData* particleDataPtrIn) {
140 particleDataPtr = particleDataPtrIn;}
142 // Reset all the properties of an existing particle.
143 void setAll(string nameIn, string antiNameIn, int spinTypeIn = 0,
144 int chargeTypeIn = 0, int colTypeIn = 0, double m0In = 0.,
145 double mWidthIn = 0., double mMinIn = 0., double mMaxIn = 0.,
147 {nameSave = nameIn; antiNameSave = antiNameIn; hasAntiSave = true;
148 if (toLower(antiNameIn) == "void") hasAntiSave = false;
149 spinTypeSave = spinTypeIn; chargeTypeSave = chargeTypeIn;
150 colTypeSave = colTypeIn; m0Save = m0In; mWidthSave = mWidthIn;
151 mMinSave = mMinIn; mMaxSave = mMaxIn; tau0Save = tau0In;
152 setDefaults(); hasChangedSave = true;}
154 // Change current values one at a time (or set if not set before).
155 // (Must use set here since else name+signature clash with get methods.)
156 void setName(string nameIn) {nameSave = nameIn; hasChangedSave = true;}
157 void setAntiName(string antiNameIn) {antiNameSave = antiNameIn;
158 hasChangedSave = true;}
159 void setNames(string nameIn, string antiNameIn) {nameSave = nameIn;
160 antiNameSave = antiNameIn; hasAntiSave = true; if (toLower(antiNameIn)
161 == "void") hasAntiSave = false; hasChangedSave = true;}
162 void setSpinType(int spinTypeIn) {spinTypeSave = spinTypeIn;
163 hasChangedSave = true;}
164 void setChargeType(int chargeTypeIn) {chargeTypeSave = chargeTypeIn;
165 hasChangedSave = true;}
166 void setColType(int colTypeIn) {colTypeSave = colTypeIn;
167 hasChangedSave = true;}
168 void setM0(double m0In) {m0Save = m0In; setConstituentMass();
169 hasChangedSave = true;}
170 void setMWidth(double mWidthIn, bool countAsChanged = true) {
171 mWidthSave = mWidthIn; if (countAsChanged) hasChangedSave = true;}
172 void setMMin(double mMinIn) {mMinSave = mMinIn; hasChangedSave = true;}
173 void setMMax(double mMaxIn) {mMaxSave = mMaxIn; hasChangedSave = true;}
174 void setTau0(double tau0In) {tau0Save = tau0In; hasChangedSave = true;}
175 void setIsResonance(bool isResonanceIn) {isResonanceSave = isResonanceIn;
176 hasChangedSave = true;}
177 void setMayDecay(bool mayDecayIn, bool countAsChanged = true) {
178 mayDecaySave = mayDecayIn; if (countAsChanged) hasChangedSave = true;}
179 void setDoExternalDecay(bool doExternalDecayIn)
180 {doExternalDecaySave = doExternalDecayIn; hasChangedSave = true;}
181 void setIsVisible(bool isVisibleIn) {isVisibleSave = isVisibleIn;
182 hasChangedSave = true;}
183 void setDoForceWidth(bool doForceWidthIn) {doForceWidthSave = doForceWidthIn;
184 hasChangedSave = true;}
185 void setHasChanged(bool hasChangedIn) {hasChangedSave = hasChangedIn;
186 for (int i = 0; i < int(channels.size()); ++i)
187 channels[i].setHasChanged(hasChangedIn);}
189 // Give back current values.
190 int id() const { return idSave; }
191 bool hasAnti() const { return hasAntiSave; }
192 string name(int idIn = 1) const {
193 return (idIn > 0) ? nameSave : antiNameSave; }
194 int spinType() const {return spinTypeSave; }
195 int chargeType(int idIn = 1) const {
196 return (idIn > 0) ? chargeTypeSave : -chargeTypeSave; }
197 double charge(int idIn = 1) const {
198 return (idIn > 0) ? chargeTypeSave / 3. : -chargeTypeSave / 3.; }
199 int colType(int idIn = 1) const {
200 if (colTypeSave == 2) return colTypeSave;
201 return (idIn > 0) ? colTypeSave : -colTypeSave; }
202 double m0() const { return m0Save; }
203 double mWidth() const { return mWidthSave; }
204 double mMin() const { return mMinSave; }
205 double mMax() const { return mMaxSave; }
206 double m0Min() const {
207 return (modeBWnow == 0) ? m0Save : mMinSave; }
208 double m0Max() const {
209 return (modeBWnow == 0) ? m0Save : mMaxSave; }
210 double tau0() const { return tau0Save; }
211 bool isResonance() const { return isResonanceSave; }
212 bool mayDecay() const { return mayDecaySave; }
213 bool doExternalDecay() const { return doExternalDecaySave; }
214 bool isVisible() const { return isVisibleSave; }
215 bool doForceWidth() const { return doForceWidthSave; }
216 bool hasChanged() const { if (hasChangedSave) return true;
217 for (int i = 0; i < int(channels.size()); ++i)
218 if (channels[i].hasChanged()) return true; return false;}
220 // Set and give back several mass-related quantities.
222 double constituentMass() const { return constituentMassSave; }
224 double mRun(double mH);
226 // Give back other quantities.
227 bool useBreitWigner() const { return (modeBWnow > 0); }
228 bool canDecay() const { return (channels.size() > 0);}
229 bool isLepton() const { return (idSave > 10 && idSave < 19);}
230 bool isQuark() const { return (idSave != 0 && idSave < 9);}
231 bool isGluon() const { return (idSave == 21);}
232 bool isDiquark() const { return (idSave > 1000 && idSave < 10000
233 && (idSave/10)%10 == 0);}
234 bool isHadron() const;
235 bool isMeson() const;
236 bool isBaryon() const;
238 // Intermediate octet ccbar or bbar states in colour-octet model.
239 bool isOctetHadron() const {return (idSave == 9900441
240 || idSave == 9900443 || idSave == 9900551 || idSave == 9900553
241 || idSave == 9910441 || idSave == 9910551); }
242 int heaviestQuark(int idIn = 1) const;
243 int baryonNumberType(int idIn = 1) const;
245 // Reset to empty decay table.
246 void clearChannels() {channels.resize(0);}
248 // Add a decay channel to the decay table.
249 void addChannel(int onMode = 0, double bRatio = 0., int meMode = 0,
250 int prod0 = 0, int prod1 = 0, int prod2 = 0, int prod3 = 0,
251 int prod4 = 0, int prod5 = 0, int prod6 = 0, int prod7 = 0) {
252 channels.push_back( DecayChannel( onMode, bRatio, meMode, prod0,
253 prod1, prod2, prod3, prod4, prod5, prod6, prod7) ); }
256 int sizeChannels() const {return channels.size();}
258 // Gain access to a channel in the decay table.
259 DecayChannel& channel(int i){return channels[i];}
260 const DecayChannel& channel(int i) const {return channels[i];}
262 // Rescale sum of branching ratios to unity.
263 void rescaleBR(double newSumBR = 1.);
265 // Random choice of decay channel according to branching ratios.
266 bool preparePick(int idSgn, double mHat = 0., int idInFlav = 0);
267 DecayChannel& pickChannel();
269 // Access methods stored in ResonanceWidths.
270 void setResonancePtr(ResonanceWidths* resonancePtrIn);
271 ResonanceWidths* getResonancePtr() {return resonancePtr;}
272 void resInit(Info* infoPtrIn, Settings* settingsPtrIn,
273 ParticleData* particleDataPtrIn, Couplings* couplingsPtrIn);
274 double resWidth(int idSgn, double mHat, int idIn = 0,
275 bool openOnly = false, bool setBR = false);
276 double resWidthOpen(int idSgn, double mHat, int idIn = 0);
277 double resWidthStore(int idSgn, double mHat, int idIn = 0);
278 double resOpenFrac(int idSgn);
279 double resWidthRescaleFactor();
280 double resWidthChan(double mHat, int idAbs1 = 0, int idAbs2 = 0);
284 // Constants: could only be changed in the code itself.
285 static const int INVISIBLENUMBER, INVISIBLETABLE[38];
286 static const double MAXTAU0FORDECAY,MINMASSRESONANCE, NARROWMASS,
287 CONSTITUENTMASSTABLE[6];
291 string nameSave, antiNameSave;
292 int spinTypeSave, chargeTypeSave, colTypeSave;
293 double m0Save, mWidthSave, mMinSave, mMaxSave, tau0Save,
295 bool hasAntiSave, isResonanceSave, mayDecaySave, doExternalDecaySave,
296 isVisibleSave, doForceWidthSave, hasChangedSave;
298 // Extra data for mass selection according to a Breit-Wigner.
300 double atanLow, atanDif, mThr;
302 // A vector containing all the decay channels of the particle.
303 vector<DecayChannel> channels;
305 // Summed branching ratio of currently open channels.
308 // Pointer to ResonanceWidths object; only used for some particles.
309 ResonanceWidths* resonancePtr;
311 // Pointer to the full particle data table.
312 ParticleData* particleDataPtr;
314 // Set constituent mass.
315 void setConstituentMass();
317 // Useful functions for string handling.
318 string toLower(const string& nameConv);
322 //==========================================================================
324 // This class holds a map of all ParticleDataEntries.
331 ParticleData() : isInit(false) {}
333 // Initialize pointers.
334 void initPtr(Info* infoPtrIn, Settings* settingsPtrIn, Rndm* rndmPtrIn,
335 Couplings* couplingsPtrIn) {infoPtr = infoPtrIn; settingsPtr = settingsPtrIn;
336 rndmPtr = rndmPtrIn; couplingsPtr = couplingsPtrIn;}
338 // Read in database from specific file.
339 bool init(string startFile = "../xmldoc/ParticleData.xml") {
340 initCommon(); return readXML(startFile);}
342 // Overwrite existing database by reading from specific file.
343 bool reInit(string startFile, bool xmlFormat = true) { initCommon();
344 return (xmlFormat) ? readXML(startFile) : readFF(startFile);}
346 // Initialize pointers, normal Breit-Wigners and special resonances.
347 void initWidths(vector<ResonanceWidths*> resonancePtrs);
349 // Read or list whole (or part of) database from/to an XML file.
350 bool readXML(string inFile, bool reset = true) ;
351 void listXML(string outFile);
353 // Read or list whole (or part of) database from/to a free format file.
354 bool readFF(string inFile, bool reset = true) ;
355 void listFF(string outFile);
357 // Read in one update from a single line.
358 bool readString(string lineIn, bool warn = true, ostream& os = cout) ;
360 // Print out table of whole database, or of only part of it.
361 void listAll(ostream& os = cout) {list(false, true, os);}
362 void listChanged(ostream& os = cout) {list(true, false, os);}
363 void listChanged(bool changedRes, ostream& os = cout) {
364 list(true, changedRes, os);}
365 void list(bool changedOnly = false, bool changedRes = true,
368 // Print out specified particles.
369 void list(int idList, ostream& os = cout) {vector<int> idListTemp;
370 idListTemp.push_back(idList); list( idListTemp, os);}
371 void list(vector<int> idList, ostream& os = cout);
373 // Check that table makes sense, especially for decays.
374 void checkTable(ostream& os = cout) {checkTable(1, os);};
375 void checkTable(int verbosity, ostream& os = cout) ;
378 void addParticle(int idIn, string nameIn = " ", int spinTypeIn = 0,
379 int chargeTypeIn = 0, int colTypeIn = 0, double m0In = 0.,
380 double mWidthIn = 0., double mMinIn = 0., double mMaxIn = 0.,
381 double tau0In = 0.) { pdt[abs(idIn)] = ParticleDataEntry(idIn,
382 nameIn, spinTypeIn, chargeTypeIn, colTypeIn, m0In, mWidthIn,
383 mMinIn, mMaxIn, tau0In); }
384 void addParticle(int idIn, string nameIn, string antiNameIn,
385 int spinTypeIn = 0, int chargeTypeIn = 0, int colTypeIn = 0,
386 double m0In = 0., double mWidthIn = 0., double mMinIn = 0.,
387 double mMaxIn = 0., double tau0In = 0.) { pdt[abs(idIn)]
388 = ParticleDataEntry(idIn, nameIn, antiNameIn, spinTypeIn,
389 chargeTypeIn, colTypeIn, m0In, mWidthIn, mMinIn, mMaxIn, tau0In); }
391 // Reset all the properties of an entry in one go..
392 void setAll(int idIn, string nameIn, string antiNameIn,
393 int spinTypeIn = 0, int chargeTypeIn = 0, int colTypeIn = 0,
394 double m0In = 0., double mWidthIn = 0., double mMinIn = 0.,
395 double mMaxIn = 0.,double tau0In = 0.) { if (isParticle(idIn))
396 pdt[abs(idIn)].setAll( nameIn, antiNameIn, spinTypeIn, chargeTypeIn,
397 colTypeIn, m0In, mWidthIn, mMinIn, mMaxIn, tau0In); }
399 // Query existence of an entry.
400 bool isParticle(int idIn) {
401 if (pdt.find(abs(idIn)) == pdt.end()) return false;
402 if (idIn > 0 || pdt[abs(idIn)].hasAnti()) return true;
405 // Return the id of the sequentially next particle stored in table.
406 int nextId(int idIn) ;
408 // Change current values one at a time (or set if not set before).
409 void name(int idIn, string nameIn) {
410 if (isParticle(idIn)) pdt[abs(idIn)].setName(nameIn); }
411 void antiName(int idIn, string antiNameIn) {
412 if (isParticle(idIn)) pdt[abs(idIn)].setAntiName(antiNameIn); }
413 void names(int idIn, string nameIn, string antiNameIn) {
414 if (isParticle(idIn)) pdt[abs(idIn)].setNames(nameIn, antiNameIn); }
415 void spinType(int idIn, int spinTypeIn) {
416 if (isParticle(idIn)) pdt[abs(idIn)].setSpinType(spinTypeIn); }
417 void chargeType(int idIn, int chargeTypeIn) {
418 if (isParticle(idIn)) pdt[abs(idIn)].setChargeType(chargeTypeIn); }
419 void colType(int idIn, int colTypeIn) {
420 if (isParticle(idIn)) pdt[abs(idIn)].setColType(colTypeIn); }
421 void m0(int idIn, double m0In) {
422 if (isParticle(idIn)) pdt[abs(idIn)].setM0(m0In); }
423 void mWidth(int idIn, double mWidthIn) {
424 if (isParticle(idIn)) pdt[abs(idIn)].setMWidth(mWidthIn); }
425 void mMin(int idIn, double mMinIn) {
426 if (isParticle(idIn)) pdt[abs(idIn)].setMMin(mMinIn); }
427 void mMax(int idIn, double mMaxIn) {
428 if (isParticle(idIn)) pdt[abs(idIn)].setMMax(mMaxIn); }
429 void tau0(int idIn, double tau0In) {
430 if (isParticle(idIn)) pdt[abs(idIn)].setTau0(tau0In); }
431 void isResonance(int idIn, bool isResonanceIn) {
432 if (isParticle(idIn)) pdt[abs(idIn)].setIsResonance(isResonanceIn); }
433 void mayDecay(int idIn, bool mayDecayIn) {
434 if (isParticle(idIn)) pdt[abs(idIn)].setMayDecay(mayDecayIn); }
435 void doExternalDecay(int idIn, bool doExternalDecayIn) {
436 if (isParticle(idIn))
437 pdt[abs(idIn)].setDoExternalDecay(doExternalDecayIn); }
438 void isVisible(int idIn, bool isVisibleIn) {
439 if (isParticle(idIn)) pdt[abs(idIn)].setIsVisible(isVisibleIn); }
440 void doForceWidth(int idIn, bool doForceWidthIn) {
441 if (isParticle(idIn)) pdt[abs(idIn)].setDoForceWidth(doForceWidthIn); }
442 void hasChanged(int idIn, bool hasChangedIn) {
443 if (isParticle(idIn)) pdt[abs(idIn)].setHasChanged(hasChangedIn); }
445 // Give back current values.
446 bool hasAnti(int idIn) {
447 return isParticle(idIn) ? pdt[abs(idIn)].hasAnti() : false ; }
448 string name(int idIn) {
449 return (isParticle(abs(idIn))) ? pdt[abs(idIn)].name(idIn) : " "; }
450 int spinType(int idIn) {
451 return isParticle(idIn) ? pdt[abs(idIn)].spinType() : 0 ; }
452 int chargeType(int idIn) {
453 return isParticle(idIn) ? pdt[abs(idIn)].chargeType(idIn) : 0 ; }
454 double charge(int idIn) {
455 return isParticle(idIn) ? pdt[abs(idIn)].charge(idIn) : 0 ; }
456 int colType(int idIn) {
457 return isParticle(idIn) ? pdt[abs(idIn)].colType(idIn) : 0 ; }
458 double m0(int idIn) {
459 return isParticle(idIn) ? pdt[abs(idIn)].m0() : 0. ; }
460 double mWidth(int idIn) {
461 return isParticle(idIn) ? pdt[abs(idIn)].mWidth() : 0. ; }
462 double mMin(int idIn) {
463 return isParticle(idIn) ? pdt[abs(idIn)].mMin() : 0. ; }
464 double m0Min(int idIn) {
465 return isParticle(idIn) ? pdt[abs(idIn)].m0Min() : 0. ; }
466 double mMax(int idIn) {
467 return isParticle(idIn) ? pdt[abs(idIn)].mMax() : 0. ; }
468 double m0Max(int idIn) {
469 return isParticle(idIn) ? pdt[abs(idIn)].m0Max() : 0. ; }
470 double tau0(int idIn) {
471 return isParticle(idIn) ? pdt[abs(idIn)].tau0() : 0. ; }
472 bool isResonance(int idIn) {
473 return isParticle(idIn) ? pdt[abs(idIn)].isResonance() : false ; }
474 bool mayDecay(int idIn) {
475 return isParticle(idIn) ? pdt[abs(idIn)].mayDecay() : false ; }
476 bool doExternalDecay(int idIn) {
477 return isParticle(idIn) ? pdt[abs(idIn)].doExternalDecay() : false ; }
478 bool isVisible(int idIn) {
479 return isParticle(idIn) ? pdt[abs(idIn)].isVisible() : false ; }
480 bool doForceWidth(int idIn) {
481 return isParticle(idIn) ? pdt[abs(idIn)].doForceWidth() : false ; }
482 bool hasChanged(int idIn) {
483 return isParticle(idIn) ? pdt[abs(idIn)].hasChanged() : false ; }
485 // Give back special mass-related quantities.
486 bool useBreitWigner(int idIn) {
487 return isParticle(idIn) ? pdt[abs(idIn)].useBreitWigner() : false ; }
488 double constituentMass(int idIn) {
489 return isParticle(idIn) ? pdt[abs(idIn)].constituentMass() : 0. ; }
490 double mass(int idIn) {
491 return isParticle(idIn) ? pdt[abs(idIn)].mass() : 0. ; }
492 double mRun(int idIn, double mH) {
493 return isParticle(idIn) ? pdt[abs(idIn)].mRun(mH) : 0. ; }
495 // Give back other quantities.
496 bool canDecay(int idIn) {
497 return isParticle(idIn) ? pdt[abs(idIn)].canDecay() : false ; }
498 bool isLepton(int idIn) {
499 return isParticle(idIn) ? pdt[abs(idIn)].isLepton() : false ; }
500 bool isQuark(int idIn) {
501 return isParticle(idIn) ? pdt[abs(idIn)].isQuark() : false ; }
502 bool isGluon(int idIn) {
503 return isParticle(idIn) ? pdt[abs(idIn)].isGluon() : false ; }
504 bool isDiquark(int idIn) {
505 return isParticle(idIn) ? pdt[abs(idIn)].isDiquark() : false ; }
506 bool isHadron(int idIn) {
507 return isParticle(idIn) ? pdt[abs(idIn)].isHadron() : false ; }
508 bool isMeson(int idIn) {
509 return isParticle(idIn) ? pdt[abs(idIn)].isMeson() : false ; }
510 bool isBaryon(int idIn) {
511 return isParticle(idIn) ? pdt[abs(idIn)].isBaryon() : false ; }
512 bool isOctetHadron(int idIn) {
513 return isParticle(idIn) ? pdt[abs(idIn)].isOctetHadron() : false ; }
514 int heaviestQuark(int idIn) {
515 return isParticle(idIn) ? pdt[abs(idIn)].heaviestQuark(idIn) : 0 ; }
516 int baryonNumberType(int idIn) {
517 return isParticle(idIn) ? pdt[abs(idIn)].baryonNumberType(idIn) : 0 ; }
519 // Change branching ratios.
520 void rescaleBR(int idIn, double newSumBR = 1.) {
521 if (isParticle(idIn)) pdt[abs(idIn)].rescaleBR(newSumBR); }
523 // Access methods stored in ResonanceWidths.
524 void setResonancePtr(int idIn, ResonanceWidths* resonancePtrIn) {
525 if (isParticle(idIn)) pdt[abs(idIn)].setResonancePtr( resonancePtrIn);}
526 void resInit(int idIn) { if (isParticle(idIn))
527 pdt[abs(idIn)].resInit(infoPtr, settingsPtr, this, couplingsPtr);}
528 double resWidth(int idIn, double mHat, int idInFlav = 0,
529 bool openOnly = false, bool setBR = false) {
530 return isParticle(idIn) ? pdt[abs(idIn)].resWidth(idIn, mHat,
531 idInFlav, openOnly, setBR) : 0.;}
532 double resWidthOpen(int idIn, double mHat, int idInFlav = 0) {
533 return isParticle(idIn) ? pdt[abs(idIn)].resWidthOpen(idIn, mHat,
535 double resWidthStore(int idIn, double mHat, int idInFlav = 0) {
536 return isParticle(idIn) ? pdt[abs(idIn)].resWidthStore(idIn, mHat,
538 double resOpenFrac(int id1In, int id2In = 0, int id3In = 0);
539 double resWidthRescaleFactor(int idIn) { return isParticle(idIn)
540 ? pdt[abs(idIn)].resWidthRescaleFactor() : 0.;}
541 double resWidthChan(int idIn, double mHat, int idAbs1 = 0,
542 int idAbs2 = 0) { return isParticle(idIn)
543 ? pdt[abs(idIn)].resWidthChan( mHat, idAbs1, idAbs2) : 0.;}
545 // Return pointer to entry.
546 ParticleDataEntry* particleDataEntryPtr(int idIn) {
547 return (isParticle(idIn)) ? &pdt[abs(idIn)] : &pdt[0]; }
551 // Common data, accessible for the individual particles.
553 double maxEnhanceBW, mQRun[7], Lambda5Run;
555 // The individual particle need access to the full database.
556 friend class ParticleDataEntry;
558 // Pointer to various information on the generation.
561 // Pointer to the settings database.
562 Settings* settingsPtr;
564 // Pointer to the random number generator.
567 // Pointer to Standard Model couplings.
568 Couplings* couplingsPtr;
570 // All particle data stored in a map.
571 map<int, ParticleDataEntry> pdt;
573 // Pointer to current particle (e.g. when reading decay channels).
574 ParticleDataEntry* particlePtr;
576 // Flag that initialization has been performed.
579 // Method for common setting of particle-specific info.
582 // Useful functions for string handling.
583 string toLower(const string& name);
584 bool boolString(string tag);
585 string attributeValue(string line, string attribute);
586 bool boolAttributeValue(string line, string attribute);
587 int intAttributeValue(string line, string attribute);
588 double doubleAttributeValue(string line, string attribute);
592 //==========================================================================
594 } // end namespace Pythia8
596 #endif // Pythia8_ParticleData_H