| 1 | | === Write here |
| | 1 | === Description of the UFO models to generate Dirac magentic monopoles |
| | 2 | |
| | 3 | Dirac magentic monopoles can be generated by Drell-Yan process or photon fusion process. The UFO models shown here describe both the processes and generate the corresponding LHE files. These models were tested for three spin cases (0, 1/2 and 1) and two processes (photon fusion and Drell-Yan). |
| | 4 | a. velocity independent coupling models: mono_spinzero, mono_spinhalf and mono_spinone. |
| | 5 | b. velocity dependent coupling models: mono_spinzero_beta, mono_spinhalf_beta, mono_spinone_beta. |
| | 6 | |
| | 7 | Details of these models can be found in arXiv:1808.08942. |
| | 8 | |
| | 9 | A. Instructions to run Drell-Yan spin zero model: |
| | 10 | |
| | 11 | a. Part 1 of the script to run spin zero monopole model (put the following snippet in a textfile named 'Spin0ScriptDY.txt'): |
| | 12 | ''' |
| | 13 | import model mono_spinzero_beta |
| | 14 | generate p p > a > mm+ mm- |
| | 15 | output Pre5For |
| | 16 | |
| | 17 | ''' |
| | 18 | |
| | 19 | b. Part 2 of the script to run spin zero monopole model (put the following snippet in a textfile named 'Spin0ScriptDY2.txt'): |
| | 20 | |
| | 21 | ''' |
| | 22 | launch Pre5For |
| | 23 | analysis=MADANALYSIS_4 |
| | 24 | set run_card ebeam1 6500 |
| | 25 | set ebeam2 6500 |
| | 26 | set lpp1 1 |
| | 27 | set lpp2 1 |
| | 28 | set pdlabel nn23lo1 |
| | 29 | set lhaid 230000 |
| | 30 | set nevents 1000 |
| | 31 | set dynamical_scale_choice -1 |
| | 32 | set fixed_couplings False |
| | 33 | set param_card mass 25 125 |
| | 34 | set mass 4110000 6000 |
| | 35 | set decay 4110000 0.000000e+0 |
| | 36 | set gch 1 1.0 |
| | 37 | |
| | 38 | ''' |
| | 39 | |
| | 40 | |
| | 41 | c. Run the part 1 of the script: ./bin/mg5_aMC Spin0ScriptDY.txt |
| | 42 | |
| | 43 | d. A new folder named Pre5For will be generated. |
| | 44 | |
| | 45 | e. Go to Pre5For/Sources and open genps.inc. |
| | 46 | |
| | 47 | f. Use the absolute path of 'maxparticles.inc' on line 5. |
| | 48 | |
| | 49 | g. Run the part 2 of the script: ./bin/mg5_aMC Spin0ScriptDY2.txt |
| | 50 | |
| | 51 | h. If you don't change the part 1 of the script at all (you only need to change it to import different monopole models), then you just need to use steps c-f only once. After that, in step g, change the mass parameter in script 2 and run for different mass points. |
| | 52 | |
| | 53 | i. For different spin models, one just needs to import those corresponding models in the part 1 of the script. |
| | 54 | |
| | 55 | |
| | 56 | |
| | 57 | B. Instructions to run photon fusion spin zero model: |
| | 58 | |
| | 59 | a. Part 1 of the script to run spin zero monopole model (put the following snippet in a textfile named 'Spin0Script.txt'): |
| | 60 | ''' |
| | 61 | import model mono_spinzero_beta |
| | 62 | generate a a > mm+ mm- |
| | 63 | output Pre5 |
| | 64 | |
| | 65 | ''' |
| | 66 | |
| | 67 | b. Part 2 of the script to run spin zero monopole model (put the following snippet in a textfile named 'Spin0Script2.txt'): |
| | 68 | |
| | 69 | ''' |
| | 70 | launch Pre5 |
| | 71 | analysis=madanalysis5 |
| | 72 | set run_card ebeam1 6500 |
| | 73 | set ebeam2 6500 |
| | 74 | set lpp1 2 |
| | 75 | set lpp2 2 |
| | 76 | set pdlabel nn23lo1 |
| | 77 | set lhaid 230000 |
| | 78 | set nevents 1000 |
| | 79 | set dynamical_scale_choice -1 |
| | 80 | set fixed_couplings False |
| | 81 | set param_card mass 25 125 |
| | 82 | set mass 4110000 6000 |
| | 83 | set decay 4110000 0.000000e+0 |
| | 84 | set gch 1 1.0 |
| | 85 | |
| | 86 | ''' |
| | 87 | |
| | 88 | |
| | 89 | c. Run the part 1 of the script: ./bin/mg5_aMC Spin0Script.txt |
| | 90 | |
| | 91 | d. A new folder named Pre5 will be generated. |
| | 92 | |
| | 93 | e. Go to Pre5/Sources and open genps.inc. |
| | 94 | |
| | 95 | f. Use the absolute path of 'maxparticles.inc' on line 5. |
| | 96 | |
| | 97 | g. Run the part 2 of the script: ./bin/mg5_aMC Spin0Script2.txt |
| | 98 | |
| | 99 | h. If you don't change the part 1 of the script at all (you only need to change it to import different monopole models), then you just need to use steps c-f only once. After that, in step g, change the mass parameter in script 2 and run for different mass points. |
| | 100 | |
| | 101 | i. For different spin models, one just needs to import those corresponding models in the part 1 of the script. |