PYTHIA  8.303
Public Member Functions | Public Attributes | List of all members
CoupSUSY Class Reference

#include <SusyCouplings.h>

Public Member Functions

 CoupSUSY ()
 Constructor.
 
void initSUSY (SusyLesHouches *slhaPtrIn, Info *infoPtrIn)
 Initialize. More...
 
complex getLsqqG (int iGenSq, int idQ)
 Assume generation index for Squark. Translate if PDG code instead.
 
complex getRsqqG (int iGenSq, int idQ)
 
complex getLsqsqZ (int idSq1, int idSq2)
 
complex getRsqsqZ (int idSq1, int idSq2)
 
complex getLsqqX (int iSq, int idQ, int iNeut)
 
complex getRsqqX (int iSq, int idQ, int iNeut)
 
int idNeut (int idChi)
 Return neutralino, chargino, sup, sdown and slepton flavour codes. More...
 
int idChar (int idChi)
 Return chargino flavour codes.
 
int idSup (int iSup)
 Return sup flavour codes.
 
int idSdown (int iSdown)
 Return sdown flavour codes.
 
int idSlep (int iSlep)
 Function to return slepton flavour codes.
 
int typeNeut (int idPDG)
 Reverse lookup for neutralinos and charginos. More...
 
int typeChar (int idPDG)
 Check whether particle is a Chargino.
 

Public Attributes

bool isInit
 Status flag. Flags for NMSSM and RPV couplings.
 
bool isSUSY
 
bool isNMSSM
 
bool isLLE
 
bool isLQD
 
bool isUDD
 
double mWpole
 Z and W pole masses and widths.
 
double wWpole
 
double mZpole
 
double wZpole
 
double mW
 
double mZ
 
double sin2W
 
double sinW
 
double cosW
 
double tanb
 Tanbeta.
 
double cosb
 
double sinb
 
double muHiggs
 Higgs-sector parameters.
 
double alphaHiggs
 
double mAHiggs
 
complex LsddG [7][4]
 ~qq~g couplings
 
complex RsddG [7][4]
 
complex LsuuG [7][4]
 
complex RsuuG [7][4]
 
complex OLpp [6][6]
 ~chi0~chi0Z couplings
 
complex ORpp [6][6]
 
complex OLp [3][3]
 ~chi+~chi-Z couplings
 
complex ORp [3][3]
 
complex OL [6][3]
 ~chi0~chi+W couplings
 
complex OR [6][3]
 
double LqqZ [7]
 qqZ couplings
 
double RqqZ [7]
 
complex LsdsdZ [7][7]
 ~q~qZ couplings
 
complex RsdsdZ [7][7]
 
complex LsusuZ [7][7]
 
complex RsusuZ [7][7]
 
complex LudW [4][4]
 udW couplings
 
complex RudW [4][4]
 
complex LsusdW [7][7]
 ~u~dW couplings
 
complex RsusdW [7][7]
 
complex LsddX [7][4][6]
 ~qq~chi0 couplings
 
complex RsddX [7][4][6]
 
complex LsuuX [7][4][6]
 
complex RsuuX [7][4][6]
 
complex LsduX [7][4][3]
 ~du~chi+ couplings
 
complex RsduX [7][4][3]
 
complex LsudX [7][4][3]
 ~ud~chi+ couplings
 
complex RsudX [7][4][3]
 
double LllZ [7]
 llZ couplings
 
double RllZ [7]
 
complex LlvW [4][4]
 lvW couplings
 
complex RlvW [4][4]
 
complex LslslZ [7][7]
 ~l~lZ couplings
 
complex RslslZ [7][7]
 
complex LsvsvZ [7][7]
 
complex RsvsvZ [7][7]
 
complex LslsvW [7][7]
 ~l~vW couplings
 
complex RslsvW [7][7]
 
complex LsvvX [7][4][6]
 ~ll~chi0 couplings
 
complex RsvvX [7][4][6]
 
complex LsllX [7][4][6]
 
complex RsllX [7][4][6]
 
complex LsvlX [7][4][3]
 ~vl~chi+ couplings
 
complex RsvlX [7][4][3]
 
complex LslvX [7][4][3]
 ~lv~chi+ couplings
 
complex RslvX [7][4][3]
 
double rvLLE [4][4][4]
 RPV couplings.
 
double rvLQD [4][4][4]
 
double rvUDD [4][4][4]
 
complex Rusq [7][7]
 Squark and slepton mixing matrix: needed for RPV.
 
complex Rdsq [7][7]
 
complex Rsl [7][7]
 
complex Rsv [7][7]
 
SusyLesHouchesslhaPtr
 

Detailed Description

CoupSUSY Auxiliary class to compute and store various SM and SUSY couplings.

Member Function Documentation

int idNeut ( int  idChi)

Return neutralino, chargino, sup, sdown and slepton flavour codes.

Return neutralino flavour codes.

void initSUSY ( SusyLesHouches slhaPtrIn,
Info infoPtrIn 
)

Initialize.

The CoupSUSY class.

Constants: could be changed here if desired, but normally should not. These are of technical nature, as described for each. Initialize SM+SUSY couplings (only performed once).

Save pointers.

Allow verbose printout for debug purposes.

Only initialize SUSY parts if SUSY is actually switched on

Is NMSSM switched on?

Initialize pole masses

Running masses and weak mixing angle (default to pole values if no running available)

Possibility to force on-shell sin2W definition, mostly intended for cross-checks

Possibility to use running sin2W definition, derived from gauge couplings in running SLHA blocks (normally defined at SUSY scale)

double tan2W = pow2(gp)/pow2(g); if (DBSUSY) cout << " tan2W = " << tan2W << endl;

Tan(beta) By default, use the running one in HMIX (if not found, use MINPAR)

Verbose output

Higgs sector

If RPV, assume alpha = asin(RVHMIX(1,2)) (ignore Higgs-Sneutrino mixing)

Define approximate alpha by simple SM limit

Pass SLHA input to 2HDM sector

h0

H0

A0

H^+

Triple higgs couplings

Shorthand for squark mixing matrices

Construct ~g couplings

Construct qqZ couplings

q[i] q[i] Z (def with extra factor 2 compared to [Okun])

tmp: verbose output

Construct ~q~qZ couplings

Squarks can have off-diagonal couplings as well

~d[i] ~d[j] Z

~u[i] ~u[j] Z

tmp: verbose output

In RPV, the slepton mixing matrices include Higgs bosons Here we just extract the entries corresponding to the slepton PDG codes I.e., slepton-Higgs mixing is not supported.

Charged sleptons

Check for Higgs-slepton mixing in RVLMIX

Neutral sleptons

Check for Higgs-sneutrino mixing in RVHMIX

Construct llZ couplings;

tmp: verbose output

Construct ~l~lZ couplings Initialize

~v[i] ~v[j] Z

Construct udW couplings Loop over up [i] and down [j] quark generation

CKM matrix (use Pythia one if no SLHA) (NB: could also try input one if no running one found, but would then need to compute from Wolfenstein)

u[i] d[j] W

tmp: verbose output

Construct ~u~dW couplings Loop over ~u[k] and ~d[l] flavours

Loop over u[i] and d[j] flavours

CKM matrix (use Pythia one if no SLHA) (NB: could also try input one if no running one found, but would then need to compute from Wolfenstein)

~u[k] ~d[l] W (add one term for each quark flavour i,j)

tmp: verbose output

Construct lvW couplings

tmp: verbose output

Construct ~l~vW couplings

Only left-handed sneutrinos

tmp: verbose output

Now we come to the ones with really many indices

RPV: check for lepton-neutralino mixing (not supported)

Construct ~chi0 couplings (allow for 5 neutralinos in NMSSM)

Ni1, Ni2, Ni3, Ni4, Ni5

In RPV, ignore neutrino-neutralino mixing

Change to positive mass convention

~chi0 [i] ~chi0 [j] Z : loop over [j]

neutralino [j] higgsino components

Change to positive mass convention

~chi0 [i] ~chi0 [j] Z : couplings

tmp: verbose output

~chi0 [i] ~chi+ [j] W : loop over [j]

Chargino mixing

RPV: ignore lepton-chargino mixing

~chi0 [i] ~chi+ [j] W : couplings

tmp: verbose output

~qqX couplings Quark Charges

Loop over quark [k] generation

Set quark masses Initial guess 0,0,0,mc,mb,mt with the latter from the PDT

Compute running mass from Yukawas and vevs if possible.

tmp: verbose output

Loop over squark [j] flavour

Squark mixing

~d[j] d[k] ~chi0[i] Changed according to new notation

~u[j] u[k] ~chi0[i]

tmp: verbose output

tmp: verbose output

tmp: verbose output

tmp: verbose output

Start slepton couplings Lepton Charges

Need to define lepton mass

Set lepton masses

~l[j] l[k] ~chi0[i] Changed according to new notation

No sneutrino mixing; only left handed ~v[j] v[k] ~chi0[i]

tmp: verbose output

tmp: verbose output

tmp: verbose output

RPV: check for lepton-chargino mixing (not supported)

Construct ~chi+ couplings sqrt(2)

Ui1, Ui2, Vi1, Vi2

~chi+ [i] ~chi- [j] Z : loop over [j]

Chargino mixing

~chi+ [i] ~chi- [j] Z : couplings

tmp: verbose output

Loop over quark [l] flavour

Set quark [l] masses Initial guess 0,0,0,mc,mb,mt with the latter from the PDT

Compute running mass from Yukawas and vevs if possible.

Loop over squark [j] flavour

Initialise to zero

Loop over off-diagonal quark [k] generation

Set quark [k] masses Initial guess 0,0,0,0,mb,mt with the latter from the PDT

Compute running mass from Yukawas and vevs if possible.

CKM matrix (use Pythia one if no SLHA) (NB: could also try input one if no running one found, but would then need to compute from Wolfenstein)

Squark mixing

~d[j] u[l] ~chi+[i]

~u[j] d[l] ~chi+[i]

tmp: verbose output

tmp: verbose output

Loop over slepton [j] flavour

Set lepton [k] masses

No lepton mixing

~l[j] v[l] ~chi+[i]

~v[j] l[l] ~chi+[i]

No right handed sneutrinos

tmp: verbose output

tmp: verbose output

Shorthand for RPV couplings The input LNV lambda couplings

The input LNV lambda' couplings

The input BNV lambda'' couplings

Symmetry properties

lambda(i,j,k)=-lambda(j,i,k)

lambda''(k,j,i)=-lambda''(k,i,j)

Store the squark mixing matrix

Let everyone know we are ready

int typeNeut ( int  idPDG)

Reverse lookup for neutralinos and charginos.

Return neutralino code; zero if not a (recognized) neutralino.

Member Data Documentation

double mW

Running masses and weak mixing angle (default to pole values if no running available)

SusyLesHouches* slhaPtr

Pointer to SLHA instance Used in SusyResonanceWidths for checking if decay table exists


The documentation for this class was generated from the following files: