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wimpmass [2009/06/18 11:36]
gunion |
wimpmass [2009/06/18 11:43] (current)
gunion |
| The code for solving the system is {{:wimpmass-1.00.tar.gz|here}}. Use "tar -xvzf <filename>" to unzip. [[http://root.cern.ch/drupal/|ROOT]] is needed for | The code for solving the system is {{:wimpmass-1.00.tar.gz|here}}. Use "tar -xvzf <filename>" to unzip. [[http://root.cern.ch/drupal/|ROOT]] is needed for |
| compiling. See the "README" file for instructions on how to run the | compiling. See the "README" file for instructions on how to run the |
| code. A description of how to run a few examples is given at [[wimpmass#how to run the examples|below]]. A Mathematica notebook used to symbolically reduce the equation system to a univariate polynomial equation is | code. A description of how to run a few examples is given [[wimpmass#how to run the examples|below]]. A Mathematica notebook used to symbolically reduce the equation system described in the above references to a univariate polynomial equation is |
| kept {{:solve3quad.nb.gz|here}} (To use this file only--remove the ".gz" extension before using it. It is not zipped. The extension is only used to avoid conflict with the Wiki), though it is not needed to run the code. | kept {{:solve3quad.nb.gz|here}} (To use this file only--remove the ".gz" extension before using it. It is not zipped. The extension is only used to avoid conflict with the Wiki); this mathematica notebook is not needed to run the main code --- it was simply used in constructing the final code. |
| |
| ==== (b) Two visible particles per decay chain ==== | ==== (b) Two visible particles per decay chain ==== |
| the {{:wimpmass-1.00.tar.gz|same place}} as (a), but the two can be compiled | the {{:wimpmass-1.00.tar.gz|same place}} as (a), but the two can be compiled |
| independently, and ROOT is not needed in this case. See the "README" file for instructions on how to run the | independently, and ROOT is not needed in this case. See the "README" file for instructions on how to run the |
| code. A description on how to run a few examples is given at [[wimpmass#how to run the examples|below]]. | code. A description on how to run a few examples is given [[wimpmass#how to run the examples|below]]. |
| |
| ==== (c) One visible particle per decay chain ==== | ==== (c) One visible particle per decay chain ==== |
| In this case, there are two unknown masses: the mass of the dark | In this case, there are two unknown masses: the mass of the dark |
| matter particle and that of its mother particle. The kinematic | matter particle and that of its mother particle. The kinematic |
| constraints divide the 2-dimensional masses space to an allowed region and a forbidden region, which are separated by the variable | constraints divide the 2-dimensional mass space into an allowed region and a forbidden region, which are separated by the variable |
| [[http://www.hep.phy.cam.ac.uk/~lester/mt2/index.html|"MT2"]]. See the following for a reference, which also | [[http://www.hep.phy.cam.ac.uk/~lester/mt2/index.html|"MT2"]]. See the following for a reference, which also |
| describes a fast algorithm for calculating MT2. | describes a fast algorithm for calculating MT2. |
| [[http://arxiv.org/abs/0810.5178|arXiv:0810.5178]] | [[http://arxiv.org/abs/0810.5178|arXiv:0810.5178]] |
| |
| The code for calculating MT2 using the algorithm is currently separate from those the cases (a) and (b), which is available | The code for calculating MT2 using the algorithm is currently separate from those for the cases (a) and (b); it is available |
| {{:mt2-1.01a.tar.gz|here}}. Please read the README file for usage. | {{:mt2-1.01a.tar.gz|here}}. Please read the README file for usage. |
| | |
