| Geant4 Cross Reference |
1 # Category hadr-qgsm History
2
3 See `CONTRIBUTING.rst` for details of **required** info/format for each entry,
4 which **must** added in reverse chronological order (newest at the top).
5 It must **not** be used as a substitute for writing good git commit messages!
6
7 -------------------------------------------------------------------------------
8
9 ## 2023-03-09 Vladimir Ivanchenko (hadr-qgsm-V11-01-01)
10 - G4BaryonSplitter, G4MesonSplitter, G4QGSMSplittableHadron, G4SPBaryon -
11 attempt make code more uniform in order to reduce probability of warnings
12 observed in CMS, when LTO option is enabled
13
14 ## 2023-02-06 Gabriele Cosmo (hadr-qgsm-V11-01-00)
15 - Fixed potential uninitialised variables in G4QGSMSplitableHadron::GetValenceQuarkFlavors().
16
17 ## 2022-10-07 Gabriele Cosmo (hadr-qgsm-V11-00-03)
18 - Fixed compilation warning on Intel/icx compiler for variables set
19 but not used in G4QGSMSplitableHadron and G4QGSParticipants.
20
21 ## 2022-05-06 Vladimir Ivanchenko (hadr-qgsm-V11-00-02)
22 - G4QGSParticipants - do not print warning in the case of precision loss;
23 a confusing exception message was observed in CMS simulation, the problem
24 happens in high energy gamma-nuclear interaction
25
26 ## 2022-02-09 Gabriele Cosmo (hadr-qgsm-V11-00-01)
27 - Fixed compilation warning on Intel compilers for unused variables.
28
29 ## 2021-12-10 Ben Morgan (hadr-qgsm-V11-00-00)
30 - Change to new Markdown History format.
31
32 ---
33
34 # History entries prior to 11.0
35
36 13-Jul-2021 Alberto Ribon (hadr-qgsm-V10-07-02)
37 - G4QGSParticipants : improved initialization in the constructors,
38 as suggested by Coverity.
39
40 16-Apr-2021 Ben Morgan (hadr-qgsm-V10-07-01)
41 - Migrate build to modular CMake API
42
43 13-Apr-2021 A. Ribon (hadr-qgsm-V10-07-00)
44 - GNUmakefile, sources.cmake : removed the subdirectories
45 hadronic/models/management and hadronic/models/util
46 (that have been now deleted, with their classes moved to
47 hadronic/util and hadronic/management).
48 Removed also the useless dependency to hadronic/process.
49
50 17-Oct-2020 V.Ivanchenko (hadr-qgsm-V10-06-06)
51 - G4QGSParticipants - added protection for G4Exp (fixing outstanding
52 precision lost in gamma+proton interactions)
53
54 28-Jul-2020 A. Ribon (hadr-qgsm-V10-06-05)
55 - G4BaryonSplitter : removed inexisting in Geant4 excited hyperon states
56 (Sigma* and Xi*).
57
58 24-Jul-2020 A. Ribon (hadr-qgsm-V10-06-04)
59 - G4BaryonSplitter, G4SPBaryon : extension to charmed and bottom
60 baryons and anti-baryons.
61 - G4SingleDiffractiveExcitation, G4QGSDiffractiveExcitation,
62 G4QuarkExchange : in the ExciteParticipants method of these classe,
63 extension to charmed and bottom hadrons by assuming a minimum
64 projectile diffractive mass equal to the PDG mass plus 250 MeV;
65 in G4QuarkExchange, assumed also 50% for the probability of
66 projectile diffraction.
67 - G4Reggeons : in the constructor, replaced Omega_cc (PDG code 4432)
68 with Omega_c (PDG code 4332); added comments.
69
70 06-Jul-2020 A. Ribon (hadr-qgsm-V10-06-03)
71 - G4QGSParticipants : rolled back the change in the average
72 transverse momentum of partons in a hadron.
73
74 10-Jun-2020 A. Ribon (hadr-qgsm-V10-06-02)
75 Two, unrelated changes made by Vladimir Uzhinsky :
76 - G4QuarkExchange : improved treatment of antibaryon interactions in QGS.
77 The reggeon exchanges are now treated as annihilation and creation of
78 quark-antiquark pairs (to reflect in inelastic processes the non-vacuum
79 reggeon exchanges present in antiparticle-particle elastic scattering
80 amplitudes).
81 - G4QGSParticipants : the average transverse momentum of partons
82 in a hadron is set to zero (according to the study of transverse
83 momentum distributions of hadrons produced in hadronic
84 interactions, in particular the study of Xf - Pt correlations
85 presented by the NA49 Collaboration).
86
87 08-Mar-2020 V.Ivanchenko (hadr-qgsm-V10-06-01)
88 - G4QGSModel - clean-up: removed unused methods, delete
89 operators, use C++11 keywords, moved icc implementation to src
90
91 16-Jan-2020 A. Ribon (hadr-qgsm-V10-06-00)
92 - G4SPBaryonTable : changed the return type of the method 'length()' from
93 'double' to 'size_t' (to avoid warnings seen on Windows).
94
95 19-Nov-2019 A. Ribon (hadr-qgsm-V10-05-02)
96 - G4VAnnihilationCrossSection, G4AnnihilationCrossSection,
97 G4GammaAnnCrossSection, G4ASCCrossSection, G4QGSMParameters :
98 deleted unused classes.
99
100 24-Oct-2019 A. Ribon (hadr-qgsm-V10-05-01)
101 - G4Reggeons: Vladimir Uzhinsky extension of the class for charmed and
102 bottom hadrons following ideas of Grichine's implementation of
103 Glauber-Gribov heavy hadron - nucleon cross sections.
104
105 02-Apr-2019 A. Ribon (hadr-qgsm-V10-05-00)
106 - G4QGSParticipants : bug-fix (made by Vladimir Uzhinsky) in the
107 computation of the transverse mass in the method
108 G4QGSParticipants::DeterminePartonMomenta() .
109
110 20-Nov-2018 A. Ribon (hadr-qgsm-V10-04-08)
111 - Minor clean-up and indentation: no changes in the random sequence.
112
113 05-Nov-2018 V. Uzhinsky (hadr-qgsm-V10-04-07)
114 - Actions needed at bad situation in QGSM when it cannot generate strings
115 are introduced. See "Uzhi Nov. 2018".
116
117 25-Oct-2018 V. Uzhinsky (hadr-qgsm-V10-04-06)
118 - G4Reggeons.cc : Cross sections of K-meson - nucleon interactions are
119 improved. Pomeron and 2 non-vacuum exchanges are accounted. Initial
120 parameters for Kaons are taken from Kaidalov's paper (1976).
121
122 Gamma-nucleon cross sections are improved due to simple tunning of
123 parameters.
124
125 12-Oct-2018 A. Ribon (hadr-qgsm-V10-04-05)
126 - G4Reggeons : Coverity fix of uninitialized variables.
127
128 05-Feb-2018 A. Ribon (hadr-qgsm-V10-04-04)
129 - G4QGSParticipants : introduced protection against negative squared mass
130 in method PutOnMassShell(), which was causing some rare crashes.
131 If a negative squared mass occurs, a "JustWarning" exception is thrown
132 and the squared mass is set to 0, before calling the square root (which
133 is now computed only once).
134
135 18-Jan-2018 A. Ribon (hadr-qgsm-V10-04-03)
136 - Proposing a new tag - although exactly the same as the previous one -
137 after fixing the irreproducibility seen in gamma-nuclear (handled
138 by QGS) with a tag in hadronization.
139
140 19-Dec-2017 V. Uzhinsky (hadr-qgsm-V10-04-02)
141 - Improved QGSM.
142
143 19-Dec-2017 G. Cosmo (hadr-qgsm-V10-04-01)
144 - Fixed self-consistency in G4SPPartonInfo header (missing #include).
145 Thanks to Raphael Isemann for reporting this.
146
147 07-Dec-2017 A. Ribon (hadr-qgsm-V10-04-00)
148 - Brought back the development version of QGS
149 (as it was in hadr-qgsm-V10-03-04).
150
151 26-Oct-2017 A. Ribon (hadr-qgsm-V10-03-05)
152 - Brought back the stable, production QGS (as in 10.3).
153
154 27-Jun-2017 G. Folger (hadr-qgsm-V10-03-04)
155 - Fixed leak in G4QGSParticipants::GetList() for targets not deleted
156 after interaction.
157
158 19-Jan-2017 A. Ribon (hadr-qgsm-V10-03-03)
159 - Small fix in G4QGSParticipants to avoid a strange crash seen only
160 in optimized mode (a 4-vector with negative square mass).
161
162 14-Dec-2016 A. Ribon (hadr-qgsm-V10-03-02)
163 - After the release G4 10.3, with "stable" version, this tag brings back
164 the "development" version, similar (although not identical because
165 of some code clean-up and a bug fix included in the (internal) tag
166 hadr-qgsm-V10-03-01, see below) to G4 10.2.ref10.
167
168 11-Nov-2016 V. Uzhinsky (hadr-qgsm-V10-03-01)
169 - Bug is fixed in G4QGSParticipants with nucleon state counter (SetStatus(?)).
170
171 02-Nov-2016 A. Ribon (hadr-qgsm-V10-03-00)
172 - Fixed warning message in G4QuarkExchange .
173
174 28-Oct-2016 A. Ribon (hadr-qgsm-V10-02-07)
175 - Fixed warning message .
176
177 27-Oct-2016 A. Ribon (hadr-qgsm-V10-02-06)
178 - Fixed trivial error in source.cmake .
179
180 27-Oct-2016 A. Ribon (hadr-qgsm-V10-02-05)
181 - Fixed trivial error (forgotten deleted class) in source.cmake and
182 G4QGSModel.
183
184 27 Oct. 2016 V. Uzhinsky (hadr-qgsm-V10-02-04)
185 - Essential improvement of QGSM. ======
186 First of all, Pomeron parameters were set up according to A. Kaidalov and M. Poghosyan (2009-2010).
187 Non-vacuum reggeons - f and omega, were included in the calculations using parameters
188 by A. Kaidalov and M. Poghosyan (2009-2010).
189 New class G4Reggeons was created for calculations of X-sections.
190
191 Cutted non-vacuum regeons are interpreted as a creation of a single string, or as
192 a single string creation and one "stable" hadron. Such processes are described by
193 RRR diagram of Reggeon phenomenology. For implementation of the processes, a new class -
194 G4QuarkExchange, was created.
195
196 Main changes are in G4QGSParticipants.cc.
197
198 10-20 Implementation of Quark exchange simulation.
199 7-9 Oct. Creation and testing G4Reggeons.
200 6 Oct. Cleaned and improved G4SingleDiffractiveExcitation.cc and G4QGSDiffractiveExcitation.
201 4 Oct. G4SingleDiffractiveExcitation.cc was corrected to treat h+N and Gamma + N diffraction.
202 3 Oct. G4MesonSplitter prob. UUbar DDbar (0.5, 0.5) were changed to (0.8, 0.2) for gamma projectile.
203
204 19 Sept 2016 V. Uzhinsky (hadr-qgsm-V10-02-03)
205 - Saving of the initial state of QGSM
206
207 18 May 2016 Alberto Ribon (hadr-qgsm-V10-02-02)
208 - G4PomeronCrossSection : added class originally in the management/
209 directory.
210
211 14 April 2016 Alberto Ribon (hadr-qgsm-V10-02-01)
212 G4QGSMSplitableHadron : fixed bug in the case of gamma projectile
213 with P_minus = 0.
214
215 04 December 2015 Alberto Ribon (hadr-qgsm-V10-02-00)
216 Resumed the tag hadr-qgsm-V10-01-14, i.e. the new QGS model.
217 The files that are changed are: G4QGSDiffractiveExcitation.hh,
218 G4QGSMSplitableHadron.hh, G4QGSModel.icc, G4QGSParticipants.hh,
219 G4QGSMSplitableHadron.cc, G4GammaParticipants.cc, G4QGSParticipants.cc,
220 G4SingleDiffractiveExcitation.cc, G4QGSDiffractiveExcitation.cc and
221 G4SPBaryon.cc .
222
223 26 October 2015 Alberto Ribon (hadr-qgsm-V10-01-16)
224 After bringing the QGS string formation as it was in G4 10.1 (and before)
225 in the previous tag, check of 'while' loops and deploy the
226 fast math functions (G4Exp, G4Log and G4Pow).
227
228 23 October 2015 Alberto Ribon (hadr-qgsm-V10-01-15)
229 Reversed (temporarily, just for the coming release G4 10.2) the
230 improvements made after 10.1.ref05, in such a way to leave the
231 QGS string formation as it was in G4 10.1 (and before).
232 The files that are changed are: G4QGSDiffractiveExcitation.hh,
233 G4QGSMSplitableHadron.hh, G4QGSModel.icc, G4QGSParticipants.hh,
234 G4QGSMSplitableHadron.cc, G4GammaParticipants.cc, G4QGSParticipants.cc,
235 G4SingleDiffractiveExcitation.cc, G4QGSDiffractiveExcitation.cc and
236 G4SPBaryon.cc .
237 After the release G4 10.2, the tag hadr-qgsm-V10-01-14 will be resumed.
238
239 13 August 2015 Alberto Ribon (hadr-qgsm-V10-01-14)
240 G4GammaParticipants, G4QGSParticipants : Coverity fixes.
241
242 07 August 2015 Alberto Ribon (hadr-qgsm-V10-01-13)
243 G4QGSModel, G4QGSMSplitableHadron, G4GammaParticipants, G4QGSParticipants,
244 G4SingleDiffractiveExcitation and G4QGSDiffractiveExcitation :
245 checking of 'while' loops.
246
247 05 August 2015 Alberto Ribon (hadr-qgsm-V10-01-12)
248 G4ASCCrossSection, G4QGSMSplitableHadron, G4QGSParticipants,
249 G4SingleDiffractiveExcitation and G4QGSDiffractiveExcitation:
250 replaced std::exp, std::log and std::pow with the faster
251 G4Exp, G4Log and G4Pow, respectively.
252 This changes the random number sequence.
253
254 12 June 2015 Alberto Ribon (hadr-qgsm-V10-01-11)
255 G4QGSParticipants: fixed a memory leak.
256
257 10 June 2015 Alberto Ribon (hadr-qgsm-V10-01-10)
258 G4QGSParticipants: commented one forgotten debugging print out statement.
259
260 4 June 2015 V. Uzhinsky (hadr-qgsm-V10-01-09)
261 G4QGSMSplitableHadron - iterator deque used as data member is
262 replaced by "unsigned int" data member. I hope it avoid segmentation
263 fault.
264
265 28 May 2015 Alberto Ribon (hadr-qgsm-V10-01-08)
266 G4QGSParticipants : improved the kinematics treatment in the method
267 SamplingNucleonKinematics.
268
269 27 May 2015 Vladimir Uzhinsky (hadr-qgsm-V10-01-07)
270 A bug lead to Segmentation fault is erased. It was connected with G4Nucleus -> GetNextNucleon()
271 used at gamma projectile which gave pointer outside nucleon vector.
272 After that wrong counting of see parton pairs was obtained, and at iteration of the partons
273 GetNextParton went out of the parton vector.
274 The changes are:
275 G4VSplitableHadron* G4GammaParticipants::SelectInteractions
276
277 theNucleus->StartLoop();
278 G4Nucleon * pNucleon =0; // theNucleus->GetNextNucleon(); // Uzhi 27.05.2015
279
280 while( (pNucleon = theNucleus->GetNextNucleon()) )
281 ....
282
283 22 May 2015 Vladimir Uzhinsky (hadr-qgsm-V10-01-06)
284 A bug is fixed for gamma projectile. In G4QGSParticipants::BuildInteractions
285 for gamma instead of GetList SelectInteractions(theProjectile) is called.
286
287 21 May 2015 Vladimir Uzhinsky (hadr-qgsm-V10-01-05)
288 Class G4GammaParticipants is adjusted to new QGSM.
289
290 20 May 2015 Vladimir Uzhinsky (hadr-qgsm-V10-01-04)
291 A bug is fixed in G4QGSParticipants for gamma projectile.
292
293 19 May 2015 Vladimir Uzhinsky (hadr-qgsm-V10-01-03)
294 To avoid double deletion erasing of TheInvolvedNucleonsOfTarget and
295 TheInvolvedNucleonsOfProjectile was closed in G4QGSParticipants::~G4QGSParticipants().
296
297 15 May 2015 Vladimir Uzhinsky (hadr-qgsm-V10-01-02)
298 A bug was erased in G4SPBaryon.cc: setting of Delta0 isobar splitting
299 into quark and diquark was wring.
300
301 Energy-momentum conservation was improved, especially in the case when
302 diffraction interactions happend.
303
304 12 May 2015 Vladimir Uzhinsky (hadr-qgsm-V10-01-01)
305 Bug is erased with double delition of splitable hadrons.
306
307 30 April 2015 Vladimir Uzhinsky (hadr-qgsm-V10-01-00)
308 - Essential improvement of QGSM:
309 Reggeon cascading was implemented.
310 "Fermi motion" connected with the reggeon cascading was implemented.
311 New algorithm of parton kinematical properties determination was implemented.
312 Calculation of residual nucleus properties was implemented.
313 Most of the changes were made in G4QGSParticipants.cc
314
315 02 May 2013 Alberto Ribon (hadr-qgsm-V09-06-00)
316 --------------------------------------------------
317 - For thread safety, replaced CLHEP::RandFlat with G4RandFlat in
318 G4QGSMSplitableHadron.cc.
319
320 20 November 2012 V. Uzhinsky (hadr-qgsm-V09-05-04)
321 --------------------------------------------------
322 - An interface for a manipulation with nucleus-nucleus interactions was
323 introduced, especially for treating remnants of projectile nuclei.
324
325 27 September 2012, Gabriele Cosmo
326 --------------------------------------------------
327 - Explicitly use inclusion of headers for system of units and physical
328 constants, in plan to remove implicit inclusion from globals.hh.
329
330 17 June 2012, Gunter Folger (hadr-qgsm-V09-05-03)
331 --------------------------------------------------
332 - Fixes for coverity in G4QGSModel concerning copy ctor and operator = .
333
334 12 June 2012, Gunter Folger (hadr-qgsm-V09-05-02)
335 --------------------------------------------------
336 - Correct shadowing warnings
337
338 31 May 2012, Gunter Folger (hadr-qgsm-V09-05-01)
339 --------------------------------------------------
340 - Improve indentation;
341 - make copy ctor, =, ==, != operators private without implementation
342
343 25 May 2012, Gunter Folger (hadr-qgsm-V09-05-00)
344 --------------------------------------------------
345 - Add ModelDescription() to QGS
346
347 5 Aug 2011, M. Kelsey (hadr-qgsm-V09-04-04)
348 -----------------------------------------------------
349 - G4GammaParticipants.cc: Follow change in return value of
350 G4V3DNucleus::GetNucleons(), use const_cast<> to allow setting Hit().
351 - G4QGSParticipants.hh: Add G4V3DNucleus.hh (should move implementations to
352 .cc file).
353
354 Requires consistent changes in other packages:
355 hadr-modman-V09-04-01
356 hadr-mod-util-V09-04-02
357 had-partonstring-mgt-V09-04-01
358 hadr-qgsm-V09-04-04
359 had-theo-HE-V09-04-01
360
361 14 Jul 2011, G.Folger (hadr-qgsm-V09-04-03)
362 -----------------------------------------------------
363 - Fix coverity warnings in G4QGSParticipants.cc and G4SPBaryon.cc
364 (none was a real problem)
365
366 01 Jun 2011, G.Folger (hadr-qgsm-V09-04-02)
367 -----------------------------------------------------
368 - G4QGSParticipants: reduce energy of participant nucleons by binding energy.
369 This increases excitation energy, as calculated by initial-final. Without
370 this, excitation E often is close to 0, or negative.
371
372 01 Jun 2011, G.Folger (hadr-qgsm-V09-04-01)
373 -----------------------------------------------------
374 - Fix compilation warnings, gcc4.6, on alost unused variables. Move
375 "debug" variables into #ifdef
376
377 17 Mar 2011, G.Folger (hadr-qgsm-V09-04-00)
378 -----------------------------------------------------
379 - set limits for E/p checking
380
381 8 Sep 2010, G.Folger (hadr-qgsm-V09-03-01)
382 -----------------------------------------------------
383 - G4QGSModel.icc: use integer (A,Z) interface of nucleus
384
385 12-Mar-2010, G.Folger (hadr-qgsm-V09-03-00)
386 - remove G4PartonStringAnnihilator.{hh,cc} not used anywhere
387
388 19 May 2009, G.Folger (hadr-qgsm-V09-02-02)
389 -----------------------------------------------------
390 - fix in G4SPBaryon: for antibaryon, a diquark & quark was given instead of
391 anti-diquark & antiquark; note the reverse order, too.
392 Fixes problems with incident anti baryons, e.g. antiproton, manifesting
393 in problems with forming hadrons.
394
395 29 Apr 2009 m. Kosov (hadr-qgsm-V09-02-01)
396 ------------------------------------------------
397 Very important bug fix in G4QGSParticipants.cc to let QGSC working from E=0
398 Added by GF (19-May-09):
399 - this very important "bug" fix modifies G4G4QGSParticipants.cc and
400 G4GammaParticipants.cc:
401 changing the value of Threshold from 0.45 GeV to 0.GeV,
402 and disables an Exception if s < sqr(total mass + Threshold)
403
404 15 Sep 2008 G.Folger (hadr-qgsm-V09-01-01)
405 ------------------------------------------------
406 - Fix for bug found on windows in G4QGSParticipants.cc, bug 1018:
407 decrement of iterator fails, improve logic to not decrement.
408
409 31 Mar 2008 Dennis Wright (hadr-qgsm-V09-01-00)
410 -----------------------------------------------
411 - fix gcc-4.3 compiler warnings at lines 293, 395 of G4QGSMSplittableHadron.cc
412
413 24 Apr 2007 Gunter Folger (hadr-qgsm-V08-02-02)
414 ------------------------------------------------
415 - merge in change done by ftf dev; ie. in G4QGSParticipants, theDiffExcitaton
416 is constructed with default arguments.
417
418 25 Jan 2007 Gunter Folger (hadr-qgsm-V08-02-01)
419 ------------------------------------------------
420 - G4SoftStringBuilder.cc: Correct typo in #ifdef
421
422 24 Jan 2007 Gunter Folger (hadr-qgsm-V08-02-00)
423 ------------------------------------------------
424 - Correct E-p non-conservation in QGS. In 4QGSMSplitableHadron.cc the smaller
425 of the lightcone momenta Q+/Q- was ignored.
426 - G4QGSMSplitableHadron correct divide by 0 in SampleX()
427 - Add debugging output to several classes
428
429 30 Nov 2005 Gabriele Cosmo (hadr-qgsm-V07-01-00)
430 -----------------------------------------------
431 - Trivial fix in G4QGSParticipants and for support of CLHEP-2.0.X series.
432 - Created History file.