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diff --git a/t/hej_test.cc b/t/hej_test.cc
index 01c0434..bc89eb2 100644
--- a/t/hej_test.cc
+++ b/t/hej_test.cc
@@ -1,683 +1,639 @@
/**
* \authors The HEJ collaboration (see AUTHORS for details)
* \date 2019-2022
* \copyright GPLv2 or later
*/
#include "hej_test.hh"
#include <algorithm>
#include <cmath>
#include <cstddef>
#include <cstdlib>
#include <iterator>
#include <memory>
#include <numeric>
#include <random>
#include <utility>
#include "HEJ/EWConstants.hh"
#include "HEJ/Particle.hh"
#include "HEJ/PDG_codes.hh"
+#include "HEJ/utility.hh"
namespace {
const HEJ::ParticleProperties Wprop{80.385, 2.085};
const HEJ::ParticleProperties Zprop{91.187, 2.495};
const HEJ::ParticleProperties Hprop{125, 0.004165};
constexpr double vev = 246.2196508;
const HEJ::EWConstants ew_parameters{vev, Wprop, Zprop, Hprop};
}
HEJ::Event::EventData get_process(int const njet, int const pos_boson){
using namespace HEJ::pid;
HEJ::Event::EventData ev;
if(njet == 0){
switch(pos_boson){
case 0:
ev.outgoing.push_back({higgs, { 0, 0, 44, 132}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -44, 44}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 88, 88}, {}};
return ev;
default: // jet idx: -1 -1
ev.outgoing.push_back({gluon, { -24, 12, -57, 63}, {}});
ev.outgoing.push_back({gluon, { 24, -12, 41, 49}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -64, 64}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 48, 48}, {}};
return ev;
}
}
if(njet == 1){
switch(pos_boson){
case 0:
ev.outgoing.push_back({higgs, { 16, -32, -99, 163}, {}});
ev.outgoing.push_back({gluon, { -16, 32, 76, 84}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -135, 135}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 112, 112}, {}};
return ev;
case 1:
ev.outgoing.push_back({gluon, { -92, 84, -57, 137}, {}});
ev.outgoing.push_back({higgs, { 92, -84, -79, 193}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -233, 233}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 97, 97}, {}};
return ev;
default: // jet idx: 0 -1 -1
ev.outgoing.push_back({gluon, { 23, 28, -44, 57}, {}});
ev.outgoing.push_back({gluon, { -11, -24, -12, 29}, {}});
ev.outgoing.push_back({gluon, { -12, -4, 39, 41}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -72, 72}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 55, 55}, {}};
return ev;
}
}
if(njet == 2){
switch(pos_boson){
case 0:
ev.outgoing.push_back({higgs, { 198, 33, -170, 291}, {}});
ev.outgoing.push_back({gluon, {-154, 68, 44, 174}, {}});
ev.outgoing.push_back({gluon, { -44, -101, 88, 141}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -322, 322}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 284, 284}, {}};
return ev;
case 1:
ev.outgoing.push_back({gluon, { -6, 82, -159, 179}, {}});
ev.outgoing.push_back({higgs, { 195, -106, 74, 265}, {}});
ev.outgoing.push_back({gluon, {-189, 24, 108, 219}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -320, 320}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 343, 343}, {}};
return ev;
case 2:
ev.outgoing.push_back({gluon, { -80, -80, -140, 180}, {}});
ev.outgoing.push_back({gluon, { -60, -32, 0, 68}, {}});
ev.outgoing.push_back({higgs, { 140, 112, 177, 281}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -246, 246}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 283, 283}, {}};
return ev;
default:
ev.outgoing.push_back({gluon, { -72, 24, 18, 78}, {}});
ev.outgoing.push_back({gluon, { 72, -24, 74, 106}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -46, 46}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 138, 138}, {}};
return ev;
}
}
if(njet == 3){
switch(pos_boson){
case 0:
ev.outgoing.push_back({higgs, { 152, -117, -88, 245}, {}});
ev.outgoing.push_back({gluon, {-146, 62, -11, 159}, {}});
ev.outgoing.push_back({gluon, { 126, -72, 96, 174}, {}});
ev.outgoing.push_back({gluon, {-132, 127, 144, 233}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -335, 335}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 476, 476}, {}};
return ev;
case 1:
ev.outgoing.push_back({gluon, {-191, 188, -128, 297}, {}});
ev.outgoing.push_back({higgs, { 199, 72, -76, 257}, {}});
ev.outgoing.push_back({gluon, { 184, -172, -8, 252}, {}});
ev.outgoing.push_back({gluon, {-192, -88, 54, 218}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -591, 591}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 433, 433}, {}};
return ev;
case 2:
ev.outgoing.push_back({gluon, { -42, 18, -49, 67}, {}});
ev.outgoing.push_back({gluon, { -12, -54, -28, 62}, {}});
ev.outgoing.push_back({higgs, { 99, 32, -16, 163}, {}});
ev.outgoing.push_back({gluon, { -45, 4, 72, 85}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -199, 199}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 178, 178}, {}};
return ev;
case 3:
ev.outgoing.push_back({gluon, { -65, -32, -76, 105}, {}});
ev.outgoing.push_back({gluon, { -22, 31, -34, 51}, {}});
ev.outgoing.push_back({gluon, { -12, -67, -36, 77}, {}});
ev.outgoing.push_back({higgs, { 99, 68, -4, 173}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -278, 278}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 128, 128}, {}};
return ev;
default:
ev.outgoing.push_back({gluon, { -90, -135, 30, 165}, {}});
ev.outgoing.push_back({gluon, {-108, 198, 76, 238}, {}});
ev.outgoing.push_back({gluon, { 198, -63, 126, 243}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -207, 207}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 439, 439}, {}};
return ev;
}
}
if(njet == 4){
switch(pos_boson){
case 0:
ev.outgoing.push_back({higgs, { 199, 72, -76, 257}, {}});
ev.outgoing.push_back({gluon, {-200, -155, -64, 261}, {}});
ev.outgoing.push_back({gluon, { 198, 194, 57, 283}, {}});
ev.outgoing.push_back({gluon, { 1, 32, 8, 33}, {}});
ev.outgoing.push_back({gluon, {-198, -143, 186, 307}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -515, 515}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 626, 626}, {}};
return ev;
case 1:
ev.outgoing.push_back({gluon, { 198, 61, -162, 263}, {}});
ev.outgoing.push_back({higgs, { 199, 72, -76, 257}, {}});
ev.outgoing.push_back({gluon, {-200, 135, 144, 281}, {}});
ev.outgoing.push_back({gluon, {-198, -186, 171, 321}, {}});
ev.outgoing.push_back({gluon, { 1, -82, 122, 147}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -535, 535}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 734, 734}, {}};
return ev;
case 2:
ev.outgoing.push_back({gluon, {-180, -27, -164, 245}, {}});
ev.outgoing.push_back({gluon, {-108, 78, -36, 138}, {}});
ev.outgoing.push_back({higgs, { 196, -189, 68, 307}, {}});
ev.outgoing.push_back({gluon, {-107, 136, 76, 189}, {}});
ev.outgoing.push_back({gluon, { 199, 2, 178, 267}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -512, 512}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 634, 634}, {}};
return ev;
case 3:
ev.outgoing.push_back({gluon, { -12, -30, -84, 90}, {}});
ev.outgoing.push_back({gluon, { -72, 22, -96, 122}, {}});
ev.outgoing.push_back({gluon, { 68, 0, -51, 85}, {}});
ev.outgoing.push_back({higgs, { 64, 72, -81, 177}, {}});
ev.outgoing.push_back({gluon, { -48, -64, 84, 116}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -409, 409}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 181, 181}, {}};
return ev;
case 4:
ev.outgoing.push_back({gluon, { -72, -49, -72, 113}, {}});
ev.outgoing.push_back({gluon, { -48, 0, -36, 60}, {}});
ev.outgoing.push_back({gluon, { -12, 54, -36, 66}, {}});
ev.outgoing.push_back({gluon, { 68, -77, -56, 117}, {}});
ev.outgoing.push_back({higgs, { 64, 72, -81, 177}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -407, 407}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 126, 126}, {}};
return ev;
default:
ev.outgoing.push_back({gluon, { 248, -56, -122, 282}, {}});
ev.outgoing.push_back({gluon, { 249, 30, -10, 251}, {}});
ev.outgoing.push_back({gluon, {-249, -18, 26, 251}, {}});
ev.outgoing.push_back({gluon, {-248, 44, 199, 321}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -506, 506}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 599, 599}, {}};
return ev;
}
}
if(njet == 6){
switch(pos_boson){
case 0:
ev.outgoing.push_back({higgs, { 349, 330, -94, 505}, {}});
ev.outgoing.push_back({gluon, {-315, -300, 0, 435}, {}});
ev.outgoing.push_back({gluon, { 347, 306, 18, 463}, {}});
ev.outgoing.push_back({gluon, {-249, -342, 162, 453}, {}});
ev.outgoing.push_back({gluon, { 345, 312, 284, 545}, {}});
ev.outgoing.push_back({gluon, {-324, -126, 292, 454}, {}});
ev.outgoing.push_back({gluon, {-153, -180, 304, 385}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -1137, 1137}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 2103, 2103}, {}};
return ev;
case 1:
ev.outgoing.push_back({gluon, { 242, 241, -182, 387}, {}});
ev.outgoing.push_back({higgs, { 243, 238, -190, 409}, {}});
ev.outgoing.push_back({gluon, {-218, -215, -74, 315}, {}});
ev.outgoing.push_back({gluon, {-224, -224, 112, 336}, {}});
ev.outgoing.push_back({gluon, { 241, 182, 154, 339}, {}});
ev.outgoing.push_back({gluon, { -53, -234, 126, 271}, {}});
ev.outgoing.push_back({gluon, {-231, 12, 156, 279}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -1117, 1117}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 1219, 1219}, {}};
return ev;
case 2:
ev.outgoing.push_back({gluon, { 151, 102, -42, 187}, {}});
ev.outgoing.push_back({gluon, { -86, -46, -17, 99}, {}});
ev.outgoing.push_back({higgs, { 152, 153, 0, 249}, {}});
ev.outgoing.push_back({gluon, { -60, -135, 64, 161}, {}});
ev.outgoing.push_back({gluon, { 150, 123, 110, 223}, {}});
ev.outgoing.push_back({gluon, {-154, -49, 98, 189}, {}});
ev.outgoing.push_back({gluon, {-153, -148, 144, 257}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -504, 504}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 861, 861}, {}};
return ev;
case 3:
ev.outgoing.push_back({gluon, { 198, 197, -66, 287}, {}});
ev.outgoing.push_back({gluon, {-198, -189, -54, 279}, {}});
ev.outgoing.push_back({gluon, {-200, -64, 2, 210}, {}});
ev.outgoing.push_back({higgs, { 199, 158, 6, 283}, {}});
ev.outgoing.push_back({gluon, {-199, -184, 172, 321}, {}});
ev.outgoing.push_back({gluon, { 196, 168, 177, 313}, {}});
ev.outgoing.push_back({gluon, { 4, -86, 92, 126}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -745, 745}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 1074, 1074}, {}};
return ev;
case 4:
ev.outgoing.push_back({gluon, { 151, 102, -42, 187}, {}});
ev.outgoing.push_back({gluon, { -86, -133, -14, 159}, {}});
ev.outgoing.push_back({gluon, {-154, -104, -8, 186}, {}});
ev.outgoing.push_back({gluon, { -60, 11, 0, 61}, {}});
ev.outgoing.push_back({higgs, { 152, 153, 0, 249}, {}});
ev.outgoing.push_back({gluon, { 150, 125, 90, 215}, {}});
ev.outgoing.push_back({gluon, {-153, -154, 126, 251}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -578, 578}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 730, 730}, {}};
return ev;
case 5:
ev.outgoing.push_back({gluon, { -15, -90, -94, 131}, {}});
ev.outgoing.push_back({gluon, { -11, 82, -74, 111}, {}});
ev.outgoing.push_back({gluon, { 23, -80, -64, 105}, {}});
ev.outgoing.push_back({gluon, { -48, -25, -36, 65}, {}});
ev.outgoing.push_back({gluon, { -12, 99, -16, 101}, {}});
ev.outgoing.push_back({higgs, { 68, 92, -18, 170}, {}});
ev.outgoing.push_back({gluon, { -5, -78, 54, 95}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -513, 513}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 265, 265}, {}};
return ev;
case 6:
ev.outgoing.push_back({gluon, { 198, 197, -66, 287}, {}});
ev.outgoing.push_back({gluon, { 4, -84, -18, 86}, {}});
ev.outgoing.push_back({gluon, {-198, -60, -36, 210}, {}});
ev.outgoing.push_back({gluon, { 196, -78, -36, 214}, {}});
ev.outgoing.push_back({gluon, {-200, 45, 0, 205}, {}});
ev.outgoing.push_back({gluon, {-199, -178, 2, 267}, {}});
ev.outgoing.push_back({higgs, { 199, 158, 6, 283}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -850, 850}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 702, 702}, {}};
return ev;
default:
ev.outgoing.push_back({gluon, {-350, -112, -280, 462}, {}});
ev.outgoing.push_back({gluon, { 347, 266, -322, 543}, {}});
ev.outgoing.push_back({gluon, {-349, -314, -38, 471}, {}});
ev.outgoing.push_back({gluon, { 349, 348, 12, 493}, {}});
ev.outgoing.push_back({gluon, {-342, -54, 23, 347}, {}});
ev.outgoing.push_back({gluon, { 345, -134, 138, 395}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -1589, 1589}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 1122, 1122}, {}};
return ev;
}
}
if(njet == 7){
switch(pos_boson){
case -1: // jet idx: -1 0 1 2 3 4 5
ev.outgoing.push_back({gluon, { -15, -18, -54, 59}, {}});
ev.outgoing.push_back({gluon, { -11, 98, -70, 121}, {}});
ev.outgoing.push_back({gluon, { 23, -100, -64, 121}, {}});
ev.outgoing.push_back({gluon, { 68, 93, -20, 117}, {}});
ev.outgoing.push_back({gluon, { -5, -92, -12, 93}, {}});
ev.outgoing.push_back({gluon, { -48, -76, -2, 90}, {}});
ev.outgoing.push_back({gluon, { -12, 95, 56, 111}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -439, 439}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 273, 273}, {}};
return ev;
case -2: // jet idx: 0 1 2 3 4 -1 -1
ev.outgoing.push_back({gluon, { -5, -86, -82, 119}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
ev.outgoing.push_back({gluon, { -48, -14, 20, 54}, {}});
ev.outgoing.push_back({gluon, { 23, -50, 26, 61}, {}});
ev.outgoing.push_back({gluon, { -12, 95, 56, 111}, {}});
ev.outgoing.push_back({gluon, { -15, -18, 54, 59}, {}});
ev.outgoing.push_back({gluon, { -11, -20, 88, 91}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -215, 215}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 397, 397}, {}};
return ev;
case -3: // jet idx: 0 0 1 2 2 3 4
// jet pt fraction: 0.6 0.38 1 0.49 0.51 1 1
ev.outgoing.push_back({gluon, { 23, -94, -62, 1.2e+02}, {}});
ev.outgoing.push_back({gluon, { -5, -62, -34, 71}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 1.2e+02}, {}});
ev.outgoing.push_back({gluon, { -12, 95, 56, 1.1e+02}, {}});
ev.outgoing.push_back({gluon, { -11, 98, 70, 1.2e+02}, {}});
ev.outgoing.push_back({gluon, { -48, -1e+02, 82, 1.4e+02}, {}});
ev.outgoing.push_back({gluon, { -15, -30, 78, 85}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -2.78e+02, 2.78e+02}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 4.88e+02, 4.88e+02}, {}};
return ev;
case -4: // jet idx: 0 1 1 2 3 4 4
// jet pt fraction: 1 0.51 0.49 1 1 0.25 0.75
ev.outgoing.push_back({gluon, { -5, -88, -64, 109}, {}});
ev.outgoing.push_back({gluon, { -11, 98, -70, 121}, {}});
ev.outgoing.push_back({gluon, { -12, 95, -56, 111}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
ev.outgoing.push_back({gluon, { 23, -70, 22, 77}, {}});
ev.outgoing.push_back({gluon, { -15, -32, 16, 39}, {}});
ev.outgoing.push_back({gluon, { -48, -96, 75, 131}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -381, 381}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 324, 324}, {}};
return ev;
case -5: // jet idx: 0 1 -1 -1 2 3 4
ev.outgoing.push_back({gluon, { -15, -26, -62, 69}, {}});
ev.outgoing.push_back({gluon, { -48, -60, -54, 94}, {}});
ev.outgoing.push_back({gluon, { 23, 10, -14, 29}, {}});
ev.outgoing.push_back({gluon, { -5, -20, 0, 21}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
ev.outgoing.push_back({gluon, { -11, -92, 40, 101}, {}});
ev.outgoing.push_back({gluon, { -12, 95, 56, 111}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -278, 278}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 264, 264}, {}};
return ev;
case -6: // jet idx: 0 1 1 2 -1 2 3
// jet pt fraction: 1 0.63 0.36 0.49 1 0.51 1
ev.outgoing.push_back({gluon, { 68, 93, -20, 117}, {}});
ev.outgoing.push_back({gluon, { -48, -100, 26, 114}, {}});
ev.outgoing.push_back({gluon, { -15, -62, 26, 69}, {}});
ev.outgoing.push_back({gluon, { -12, 95, 56, 111}, {}});
ev.outgoing.push_back({gluon, { -5, -28, 20, 35}, {}});
ev.outgoing.push_back({gluon, { -11, 98, 70, 121}, {}});
ev.outgoing.push_back({gluon, { 23, -96, 92, 135}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -216, 216}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 486, 486}, {}};
return ev;
case -7: // jet idx: 0 1 2 2 3 3 4
// jet pt fraction: 1 1 0.51 0.49 0.18 0.82 1
ev.outgoing.push_back({gluon, { -15, -80, -100, 129}, {}});
ev.outgoing.push_back({gluon, { 23, -96, -92, 135}, {}});
ev.outgoing.push_back({gluon, { -11, 98, -70, 121}, {}});
ev.outgoing.push_back({gluon, { -12, 95, -56, 111}, {}});
ev.outgoing.push_back({gluon, { -5, -22, -10, 25}, {}});
ev.outgoing.push_back({gluon, { -48, -88, -31, 105}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -541, 541}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 202, 202}, {}};
return ev;
case -8: // jet idx: 0 1 2 2 2 3 4
// jet pt fraction: 1 1 0.21 0.37 0.41 1 1
ev.outgoing.push_back({gluon, { -48, -44, -62, 90}, {}});
ev.outgoing.push_back({gluon, { -12, 95, -56, 111}, {}});
ev.outgoing.push_back({gluon, { -5, -50, -22, 55}, {}});
ev.outgoing.push_back({gluon, { 23, -90, -34, 99}, {}});
ev.outgoing.push_back({gluon, { -15, -100, -28, 105}, {}});
ev.outgoing.push_back({gluon, { 68, 93, -20, 117}, {}});
ev.outgoing.push_back({gluon, { -11, 96, 76, 123}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -423, 423}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 277, 277}, {}};
return ev;
case -9: // jet idx: 0 1 2 1 3 0 4
// jet pt fraction: 0.72 0.51 1 0.49 1 0.28 1
ev.outgoing.push_back({gluon, { -15, -98, -62, 117}, {}});
ev.outgoing.push_back({gluon, { -12, 95, -56, 111}, {}});
ev.outgoing.push_back({gluon, { 23, -76, -40, 89}, {}});
ev.outgoing.push_back({gluon, { -11, 92, -40, 101}, {}});
ev.outgoing.push_back({gluon, { -48, -68, -34, 90}, {}});
ev.outgoing.push_back({gluon, { -5, -38, -14, 41}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -446, 446}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 220, 220}, {}};
return ev;
case -10: // jet idx: 0 1 3 2 4 3 1
// jet pt fraction: 1 0.33 0.51 1 1 0.49 0.67
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
ev.outgoing.push_back({gluon, { -5, -48, 16, 51}, {}});
ev.outgoing.push_back({gluon, { -12, 95, 56, 111}, {}});
ev.outgoing.push_back({gluon, { 23, -76, 52, 95}, {}});
ev.outgoing.push_back({gluon, { -48, -60, 54, 94}, {}});
ev.outgoing.push_back({gluon, { -11, 92, 68, 115}, {}});
ev.outgoing.push_back({gluon, { -15, -96, 72, 121}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -183, 183}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 521, 521}, {}};
return ev;
case -11: // jet idx: 0 1 2 3 4 -1 5
// jet pt fraction: 1 1 1 1 1 1 1
ev.outgoing.push_back({gluon, { -11, 98, -70, 121}, {}});
ev.outgoing.push_back({gluon, { -15, -98, -62, 117}, {}});
ev.outgoing.push_back({gluon, { 23, -90, -2, 93}, {}});
ev.outgoing.push_back({gluon, { -48, -76, 2, 90}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
ev.outgoing.push_back({gluon, { -5, -22, 10, 25}, {}});
ev.outgoing.push_back({gluon, { -12, 95, 56, 111}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -360, 360}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 314, 314}, {}};
return ev;
case -12: // jet idx: 0 1 -1 2 3 4 3
// jet pt fraction: 1 1 1 1 0.35 1 0.65
ev.outgoing.push_back({gluon, { 23, -94, -62, 115}, {}});
ev.outgoing.push_back({gluon, { -12, 95, -56, 111}, {}});
ev.outgoing.push_back({gluon, { -5, -28, 4, 29}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
ev.outgoing.push_back({gluon, { -15, -58, 34, 69}, {}});
ev.outgoing.push_back({gluon, { -11, 92, 68, 115}, {}});
ev.outgoing.push_back({gluon, { -48, -100, 82, 138}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -302, 302}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 392, 392}, {}};
return ev;
case -13: // jet idx: 0 1 2 3 3 4 2
// jet pt fraction: 1 1 0.5 0.35 0.65 1 0.5
ev.outgoing.push_back({gluon, { -15, -98, -62, 117}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
ev.outgoing.push_back({gluon, { -12, 95, 56, 111}, {}});
ev.outgoing.push_back({gluon, { -5, -28, 20, 35}, {}});
ev.outgoing.push_back({gluon, { -48, -96, 75, 131}, {}});
ev.outgoing.push_back({gluon, { 23, -62, 50, 83}, {}});
ev.outgoing.push_back({gluon, { -11, 96, 76, 123}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -241, 241}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 476, 476}, {}};
return ev;
case -14: // jet idx: 0 1 2 3 3 4 2
// jet pt fraction: 1 1 0.52 0.35 0.65 1 0.48
ev.outgoing.push_back({gluon, { 23, -94, -62, 115}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
ev.outgoing.push_back({gluon, { -12, 95, 56, 111}, {}});
ev.outgoing.push_back({gluon, { -15, -96, 72, 121}, {}});
ev.outgoing.push_back({gluon, { -5, -42, 38, 57}, {}});
ev.outgoing.push_back({gluon, { -48, -44, 62, 90}, {}});
ev.outgoing.push_back({gluon, { -11, 88, 88, 125}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -231, 231}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 505, 505}, {}};
return ev;
case -15: // jet idx: 0 -1 1 0 2 3 4
// jet pt fraction: 0.51 1 1 0.49 1 1 1
ev.outgoing.push_back({gluon, { -11, 98, -70, 121}, {}});
ev.outgoing.push_back({gluon, { -5, -16, -12, 21}, {}});
ev.outgoing.push_back({gluon, { 23, -94, -62, 115}, {}});
ev.outgoing.push_back({gluon, { -12, 95, -56, 111}, {}});
ev.outgoing.push_back({gluon, { 68, 93, 20, 117}, {}});
ev.outgoing.push_back({gluon, { -48, -76, 70, 114}, {}});
ev.outgoing.push_back({gluon, { -15, -100, 80, 129}, {}});
- ev.incoming[0] = {gluon, { 0, 0, -379, 379}, {}};
- ev.incoming[1] = {gluon, { 0, 0, 349, 349}, {}};
return ev;
}
}
throw HEJ::unknown_option{"unknown process"};
}
+double mass(HEJ::Particle const & p) {
+ static constexpr double M_PROTON = 0.938;
+ using namespace HEJ::pid;
+ switch(p.type){
+ case Higgs:
+ return Hprop.mass;
+ case Z:
+ case Z_photon_mix:
+ return Zprop.mass;
+ case Wm:
+ case Wp:
+ return Wprop.mass;
+ case proton:
+ return M_PROTON;
+ default:
+ if(is_massless(p)) return 0.;
+ throw std::invalid_argument{
+ name(p.type) + " has unknown mass"
+ };
+ }
+}
+
+void repair_momenta(HEJ::Event::EventData & ev) {
+ double E_sum = 0., pz_sum = 0.;
+ for(auto & out: ev.outgoing) {
+ const double m = mass(out);
+ const double psq = out.px()*out.px() + out.py()*out.py() + out.pz()*out.pz();
+ const double E = sqrt(psq + m * m);
+ out.p.reset(out.px(), out.py(), out.pz(), E);
+ assert(HEJ::nearby_ep(out.p.m(), m, 1e-7*E));
+ E_sum += E;
+ pz_sum += out.pz();
+ }
+ const double p0 = (E_sum - pz_sum)/2.;
+ const double p1 = (E_sum + pz_sum)/2.;
+ ev.incoming[0].p.reset(0, 0, -p0, p0);
+ ev.incoming[1].p.reset(0, 0, +p1, p1);
+}
+
HEJ::Event::EventData parse_configuration(
std::array<std::string,2> const & in, std::vector<std::string> const & out,
int const overwrite_boson
){
auto boson = std::find_if(out.cbegin(), out.cend(),
[](std::string const & id){
return !HEJ::is_parton(HEJ::to_ParticleID(id)); });
int const pos_boson = (overwrite_boson!=0)?overwrite_boson:
((boson == out.cend())?-1:std::distance(out.cbegin(), boson));
std::size_t njets = out.size();
if( (overwrite_boson == 0) && boson != out.cend()) --njets;
HEJ::Event::EventData ev{get_process(njets, pos_boson)};
ASSERT((pos_boson<0) || (ev.outgoing[pos_boson].type == HEJ::ParticleID::higgs));
for(std::size_t i=0; i<out.size(); ++i){
ev.outgoing[i].type = HEJ::to_ParticleID(out[i]);
+ }
+ for(std::size_t i=0; i<in.size(); ++i){
+ ev.incoming[i].type = HEJ::to_ParticleID(in[i]);
+ }
+ repair_momenta(ev);
+ for(std::size_t i = 0; i < out.size(); ++i) {
// decay W
if( std::abs(ev.outgoing[i].type) == HEJ::ParticleID::Wp )
ev.decays[i]=decay_W(ev.outgoing[i]);
// decay Z
if( ev.outgoing[i].type == HEJ::ParticleID::Z_photon_mix )
ev.decays[i]=decay_Z(ev.outgoing[i]);
}
- for(std::size_t i=0; i<in.size(); ++i){
- ev.incoming[i].type = HEJ::to_ParticleID(in[i]);
- }
shuffle_particles(ev);
return ev;
}
-
HEJ::Event::EventData rapidity_order_ps(
std::array<std::string,2> const & in,
std::vector<std::string> const & out,
bool reconstruct /* = false */,
std::unordered_map< size_t, std::vector<std::string> > decays /* = {} */,
bool shuffle
) {
using namespace HEJ::pid;
HEJ::Event::EventData evd;
const size_t n_out {out.size()};
// Arbitrary non-zero mT2 shift in lieu of mass property of Z_photon_mix
constexpr double arbitrary_mT2 = 80.*80.;
// Arbitrary Parameters
constexpr double pT {40.};
constexpr double start_y {-4.5};
constexpr double min_dy {0.5}; // chosen to be above typical jet-radius
const double dy {std::max(-2.*start_y/(n_out-1), min_dy)};
// Kinematic parameters
std::array<double,2> cs_phi {1., 0.};
std::array<double,2> cs_dphi {cos(2.*M_PI/n_out), sin(2.*M_PI/n_out)};
double y {start_y};
double sum_pE {0.};
double sum_pz {0.};
// Outgoing
evd.outgoing.reserve(n_out);
for(size_t i = 0; i < n_out; ++i) {
auto pid = HEJ::to_ParticleID(out[i]);
// Kinematics
double mT2 = pT*pT;
if(HEJ::is_AWZH_boson(pid)) {
// Z_photon_mix has no properties
if(pid == Z_photon_mix) { mT2 += arbitrary_mT2; }
// regular bosons
else {
auto const ref = ew_parameters.prop(pid);
mT2 += ref.mass*ref.mass;
}
}
double pz {sqrt(mT2)*sinh(y)};
double pE {sqrt(mT2)*cosh(y)};
evd.outgoing.push_back({pid, {pT*cs_phi[0], pT*cs_phi[1], pz, pE}, {}});
sum_pE+=pE;
sum_pz+=pz;
// Update cos,sin, y
cs_phi = {cs_phi[0] * cs_dphi[0] - cs_phi[1] * cs_dphi[1],
cs_phi[1] * cs_dphi[0] + cs_phi[0] * cs_dphi[1]};
y += dy;
}
// Specified decays
evd.decays.reserve(decays.size());
for(auto const & decay : decays) {
auto const parent = evd.outgoing.at(decay.first);
std::vector<HEJ::Particle> progeny = decay_kinematics(parent);
for(std::size_t i = 0; i < decay.second.size(); ++i) {
progeny[i].type = HEJ::to_ParticleID(decay.second[i]);
}
evd.decays.emplace(decay.first, std::move(progeny));
}
// Reconstruct decays
if(reconstruct) { evd.reconstruct_intermediate(ew_parameters); }
// Incoming
double p0 {0.5*(sum_pE - sum_pz)};
evd.incoming[0] = {HEJ::to_ParticleID(in[0]),{0,0,-p0,p0},{}};
double p1 {0.5*(sum_pE + sum_pz)};
evd.incoming[1] = {HEJ::to_ParticleID(in[1]),{0,0,+p1,p1},{}};
// Shuffle
if(shuffle) { shuffle_particles(evd); }
return evd;
}
namespace {
std::mt19937_64 RAN{0};
}
void shuffle_particles(HEJ::Event::EventData & ev) {
// incoming
std::shuffle(ev.incoming.begin(), ev.incoming.end(), RAN);
// outgoing (through index)
auto old_outgoing = std::move(ev).outgoing;
std::vector<std::size_t> idx(old_outgoing.size());
std::iota(idx.begin(), idx.end(), 0);
std::shuffle(idx.begin(), idx.end(), RAN);
ev.outgoing.clear();
ev.outgoing.reserve(old_outgoing.size());
for(std::size_t i: idx) {
ev.outgoing.emplace_back(std::move(old_outgoing[i]));
}
// find decays again
if(!ev.decays.empty()){
auto old_decays = std::move(ev).decays;
ev.decays.clear();
for(std::size_t i=0; i<idx.size(); ++i) {
auto decay = old_decays.find(idx[i]);
if(decay != old_decays.end())
ev.decays.emplace(i, std::move(decay->second));
}
for(auto & decay: ev.decays){
std::shuffle(decay.second.begin(), decay.second.end(), RAN);
}
}
}
bool couple_quark(std::string const & boson, std::string & quark){
if(std::abs(HEJ::to_ParticleID(boson)) == HEJ::ParticleID::Wp){
auto qflav{ HEJ::to_ParticleID(quark) };
if(!HEJ::is_anyquark(qflav)) return false;
const int W_charge = HEJ::to_ParticleID(boson)>0?1:-1;
if(W_charge*qflav < 0 && !(std::abs(qflav)%2)) return false; // not anti-down
if(W_charge*qflav > 0 && (std::abs(qflav)%2)) return false; // not up
quark=std::to_string(qflav-W_charge);
}
if(HEJ::to_ParticleID(boson) == HEJ::ParticleID::Z_photon_mix){
auto qflav{ HEJ::to_ParticleID(quark) };
if(!HEJ::is_anyquark(qflav)) return false;
}
return true;
}
std::vector<HEJ::Particle> decay_kinematics( HEJ::Particle const & parent ) {
std::vector<HEJ::Particle> decay_products(2);
const double E = parent.m()/2;
const double theta = 2.*M_PI*RAN()/static_cast<double>(RAN.max());
const double cos_phi = 2.*RAN()/static_cast<double>(RAN.max())-1.;
const double sin_phi = std::sqrt(1. - cos_phi*cos_phi); // Know 0 < phi < pi
const double px = E*std::cos(theta)*sin_phi;
const double py = E*std::sin(theta)*sin_phi;
const double pz = E*cos_phi;
decay_products[0].p.reset(px, py, pz, E);
decay_products[1].p.reset(-px, -py, -pz, E);
for(auto & particle: decay_products) particle.p.boost(parent.p);
return decay_products;
}
std::vector<HEJ::Particle> decay_W( HEJ::Particle const & parent ){
if(parent.m() == 0.) // we can't decay massless partons
return {};
std::array<HEJ::ParticleID, 2> decays{};
if(parent.type==HEJ::ParticleID::Wp){
// order matters: first particle, second anti
decays[0] = HEJ::ParticleID::nu_e;
decays[1] = HEJ::ParticleID::e_bar;
} else {
// this function is for testing: we don't check that parent==W boson
decays[0] = HEJ::ParticleID::e;
decays[1] = HEJ::ParticleID::nu_e_bar;
}
std::vector<HEJ::Particle> decay_products = decay_kinematics(parent);
for(std::size_t i = 0; i < decay_products.size(); ++i){
decay_products[i].type = decays[i];
}
return decay_products;
}
std::vector<HEJ::Particle> decay_Z( HEJ::Particle const & parent ){
if(parent.m() == 0.) // we can't decay massless partons
return {};
std::array<HEJ::ParticleID, 2> decays{};
// order matters: first particle, second anti
decays[0] = HEJ::ParticleID::electron;
decays[1] = HEJ::ParticleID::positron;
std::vector<HEJ::Particle> decay_products = decay_kinematics(parent);
for(std::size_t i = 0; i < decay_products.size(); ++i){
decay_products[i].type = decays[i];
}
return decay_products;
}

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