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ReinSehgalRESXSec.h
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1 //____________________________________________________________________________
2 /*!
3 
4 \class genie::ReinSehgalRESXSec
5 
6 \brief Computes the cross section for an exclusive 1pi reaction through
7  resonance neutrinoproduction according to the Rein-Sehgal model.
8 
9  This algorithm produces in principle what you could also get from
10  the genie::RESXSec algorithm (RES cross section integrator) by
11  specifying the genie::ReinSehgalRESPXSec as the differential
12  cross section model. However, ReinSehgalRESXSec offers a faster
13  alternative. Before computing any RES cross section this algorithm
14  computes and caches splines for resonance neutrino-production cross
15  sections. This improves the speed of the GENIE spline construction
16  phase if splines for multiple nuclear targets are to be computed.
17 
18  Is a concrete implementation of the XSecAlgorithmI interface.\n
19 
20 \ref D.Rein and L.M.Sehgal, Neutrino Excitation of Baryon Resonances
21  and Single Pion Production, Ann.Phys.133, 79 (1981)
22 
23 \author Costas Andreopoulos <c.andreopoulos \at cern.ch>
24  University of Liverpool
25 
26 \created March 09, 2006
27 
28 \cpright Copyright (c) 2003-2024, The GENIE Collaboration
29  For the full text of the license visit http://copyright.genie-mc.org
30 */
31 //____________________________________________________________________________
32 
33 #ifndef _REIN_SEHGAL_RES_XSEC_H_
34 #define _REIN_SEHGAL_RES_XSEC_H_
35 
37 
38 namespace genie {
39 
41 
42 public:
44  ReinSehgalRESXSec(string param_set);
45  virtual ~ReinSehgalRESXSec();
46 
47  // XSecIntegratorI interface implementation
48  double Integrate(const XSecAlgorithmI * model, const Interaction * i) const;
49 
50  // Overload the Algorithm::Configure() methods to load private data
51  // members from configuration options
52  void Configure(const Registry & config);
53  void Configure(string config);
54 
55 private:
56  void LoadConfig(void);
57 
58  bool fUsePauliBlocking; ///< account for Pauli blocking?
59 };
60 
61 } // genie namespace
62 #endif // _REIN_SEHGAL_RES_XSEC_H_
Cross Section Calculation Interface.
bool fUsePauliBlocking
account for Pauli blocking?
Summary information for an interaction.
Definition: Interaction.h:56
double Integrate(const XSecAlgorithmI *model, const Interaction *i) const
A registry. Provides the container for algorithm configuration parameters.
Definition: Registry.h:65
void Configure(const Registry &config)
Computes the cross section for an exclusive 1pi reaction through resonance neutrinoproduction accordi...
An ABC that caches resonance neutrinoproduction cross sections on free nucleons according to the Rein...