| 16 | | * Use comma to specify decay chains. For instance "x x > Z W, Z >y y, W > k k" means "x x > Z W" where Z then decays to yy and W to kk. |
| 17 | | * Coupling orders are automatically detected to generate the leading order processes. To explicitly specify coupling orders, add them after the process on the same line:<br />x x > y y y / z QCD=0<br />x x > Z W QED=2, Z > y y, W > k k<br />Note that if a coupling order is omitted, it defaults to infinity (or, for restricted couplings such as HIG in the HEFT model, to the restricted value). |
| 18 | | * Use the multi-label "p" to indicate a proton or an anti-proton.<br /> The symbol "p~" does not exist. In fact the type of initial state (pp or ppbar or parton-parton fixed energy) is specified later, during the run, in the run_card.dat.<br />The multi-lable "j" suggests a final-state jet. |
| | 16 | * Use comma to specify decay chains. For instance "x x > Z W, Z >y y, W > k k" means "x x > Z W" where Z then decays to yy and W to kk. |
| | 17 | * Coupling orders are automatically detected to generate the leading order processes. To explicitly specify coupling orders, add them after the process on the same line:[[br]]x x > y y y / z QCD=0[[br]]x x > Z W QED=2, Z > y y, W > k k[[br]]Note that if a coupling order is omitted, it defaults to infinity (or, for restricted couplings such as HIG in the HEFT model, to the restricted value). |
| | 18 | * Use the multi-label "p" to indicate a proton or an anti-proton.[[br]] The symbol "p~" does not exist. In fact the type of initial state (pp or ppbar or parton-parton fixed energy) is specified later, during the run, in the run_card.dat.[[br]]The multi-lable "j" suggests a final-state jet. |
| 24 | | || t > b e+ ve || <img alt="" align="center" src="/twiki/pub/Main/InputEx/t.gif" /> || Decay of the top. Particle one is decayed, particles 2,3,4 are the decay products || |
| 25 | | || u u~ > d d~ QED=2 || <img alt="" src="/twiki/pub/Main/InputEx/uux_ddx_9999.gif" /> || Both the QCD and QED are set to 2. This entails that all the possible contributions (W,gluon,photon,Z) appear. In total 4 diagrams appear. || |
| 26 | | || u u~ > d d~ || <img alt="" align="center" src="/twiki/pub/Main/InputEx/uux_ddx_9900.gif" /> || No coupling orders are specified, so only the dominating (QCD) contribution is included. The QED contributions (W,photon,Z) are now off. || |
| 27 | | || u u~ > d d~ /w+ QCD=0 || <img alt="" src="/twiki/pub/Main/InputEx/uux_ddx_0099_w.gif" /> || The maximum number of QCD couplings is set to zero, and the contribution from an internal W+ (or W-) are eliminated. As a result only the contributions from the exchange of a photon and a Z appear. || |
| 28 | | || u u~ > z > d d~ a QCD=0 || <img alt="" src="/twiki/pub/Main/InputEx/uux_z_ddxa_0099.gif" /> || The maximum number of QCD couplings is set to zero, and the presence of a Z in an s-channel diagram is requested. As a result possible contributions from the exchange of a W in the t-channel or a photon in the s-channel are excluded. || |
| 29 | | || g g > t t~, (t >b w+, w+ > e+ ve), (t~ > b~ w-, w- > e- ve~) || <img alt="" src="/twiki/pub/Main/InputEx/gg_ttx_0204.gif" /> || This is t tbar production with semileptonic decays for both tops. No coupling orders are specified, so he production process will have only the dominating QCD contribution. The requirement of having the two top on-shell avoids the generation of non resonant contributions such as gg>bb~ZZ with the subsequent decays of the Z's, giving in total 203 diagrams instead of just 3. || |
| | 24 | || t > b e+ ve || <img alt="" align="center" src="/twiki/pub/Main/InputEx/t.gif" /> || Decay of the top. Particle one is decayed, particles 2,3,4 are the decay products || |
| | 25 | || u u~ > d d~ QED=2 || <img alt="" src="/twiki/pub/Main/InputEx/uux_ddx_9999.gif" /> || Both the QCD and QED are set to 2. This entails that all the possible contributions (W,gluon,photon,Z) appear. In total 4 diagrams appear. || |
| | 26 | || u u~ > d d~ || <img alt="" align="center" src="/twiki/pub/Main/InputEx/uux_ddx_9900.gif" /> || No coupling orders are specified, so only the dominating (QCD) contribution is included. The QED contributions (W,photon,Z) are now off. || |
| | 27 | || u u~ > d d~ /w+ QCD=0 || <img alt="" src="/twiki/pub/Main/InputEx/uux_ddx_0099_w.gif" /> || The maximum number of QCD couplings is set to zero, and the contribution from an internal W+ (or W-) are eliminated. As a result only the contributions from the exchange of a photon and a Z appear. || |
| | 28 | || u u~ > z > d d~ a QCD=0 || <img alt="" src="/twiki/pub/Main/InputEx/uux_z_ddxa_0099.gif" /> || The maximum number of QCD couplings is set to zero, and the presence of a Z in an s-channel diagram is requested. As a result possible contributions from the exchange of a W in the t-channel or a photon in the s-channel are excluded. || |
| | 29 | || g g > t t~, (t >b w+, w+ > e+ ve), (t~ > b~ w-, w- > e- ve~) || <img alt="" src="/twiki/pub/Main/InputEx/gg_ttx_0204.gif" /> || This is t tbar production with semileptonic decays for both tops. No coupling orders are specified, so he production process will have only the dominating QCD contribution. The requirement of having the two top on-shell avoids the generation of non resonant contributions such as gg>bb~ZZ with the subsequent decays of the Z's, giving in total 203 diagrams instead of just 3. || |
| 33 | | || p p > e+ ve || P0_qq_lvl <br /> <p> </p> <p> </p> || d~ u -> e+ ve <br /> u d~ -> e+ ve || s~ c -> e+ ve <br /> c s~ -> e+ ve || The special codes p and j, sum over gluon, and n light quark flavors and their anti_particles, as specified by the option. MadGraph is able to identify and combine explicitly identical subprocesses, and combine processes with same type of particles in the initial and final state (q/g/l/vl) into single directories || |
| 34 | | || p p > W+ j j, W+ > l+ vl || P0_qq_lvlqq <br /> P0_gq_lvlgq <br />P0_gg_lvlqq || u~ u -> e+ ve u~ d <br /> g g -> mu+ vm s c~ <br /> ... || u~ u -> mu+ vm u~ d <br /> g g -> e+ ve s c~ <br /> ... || In this example, W+ + jets production is requested, with the subsequent leptonic decay of the W+. If l=e,mu is chosen in the options, then both possibilities are included. MadGraph is able to identify and combine explicitly identical subprocesses, and combine processes with same type of particles in the initial and final state (q/g/l/vl) into common directories. || |
| | 33 | || p p > e+ ve || P0_qq_lvl <br /> |
| | 34 | |
| | 35 | </p> <p> </p> || d~ u -> e+ ve [[br]] u d~ -> e+ ve || s~ c -> e+ ve [[br]] c s~ -> e+ ve || The special codes p and j, sum over gluon, and n light quark flavors and their anti_particles, as specified by the option. MadGraph is able to identify and combine explicitly identical subprocesses, and combine processes with same type of particles in the initial and final state (q/g/l/vl) into single directories || |
| | 36 | || p p > W+ j j, W+ > l+ vl || P0_qq_lvlqq [[br]] P0_gq_lvlgq [[br]]P0_gg_lvlqq || u~ u -> e+ ve u~ d [[br]] g g -> mu+ vm s c~ [[br]] ... || u~ u -> mu+ vm u~ d [[br]] g g -> e+ ve s c~ [[br]] ... || In this example, W+ + jets production is requested, with the subsequent leptonic decay of the W+. If l=e,mu is chosen in the options, then both possibilities are included. MadGraph is able to identify and combine explicitly identical subprocesses, and combine processes with same type of particles in the initial and final state (q/g/l/vl) into common directories. || |
