Flavour Les Houches Accord

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Contents

Purpose of the accord

The accord will provide model independent parametrization of flavor related quantities based on the existing SLHA structure. That will allow to different programs to talk and to be interfaced, and to users to have a clear and well-defined result that can eventually be used for different purposes.

Interested people

Genevieve BELANGER, Fawzi BOUDJEMA, Sven HEINEMEYER, Sabine KRAML, Nazila MAHMOUDI, Margarete MUHLLEITNER, Will REECE, Juergen REUTER, Pietro SLAVICH

Current proposal (status 24/06/09)

Each block's name links to a respective discussion page where you can find more information and make suggestions for modifications and improvements. Please don't modify the current proposal unless a consensus is reached on the discussion subpage. For general comments on the FLHA, not related to a specific block, you can also use the discussion page associated to this page.

Blocks for program and model information

Block FCINFO  # Program information
    1     SUPERISO         # flavor calculator
    2     2.6              # version number
Block FMODSEL   # Model selection
    1     1   # Extradimension (UED)

Block SM inputs

Block SMINPUTS  # Standard Model inputs
    1     1.27839951e+02   # alpha_em^(-1)
    2     1.16570000e-05   # G_Fermi
    3     1.17200002e-01   # alpha_s(M_Z)
    4     9.11699982e+01   # m_{Z}(pole)
    5     4.19999981e+00   # m_{b}(m_{b})
    6     1.72399994e+02   # m_{top}(pole)
    7     1.77699995e+00   # m_{tau}(pole)

Block Hadron mass spectrum

Block FMASS  # Hadron mass spectrum in GeV
#PDG code  mass             particle
  211     1.39600000e-01   # pi+
  313     8.91700000e-01   # K*
  321     4.93700000e-01   # K+
  421     1.86484000e+00   # D0
  431     1.96849000e+00   # D_s+
  521     5.27950000e+00   # B+
  531     5.36630000e+00   # B_s

This block gives blablabla and is used for blablabla .....

Block lifetimes

Block FLIFE  # Lifetime in sec 
#PDG code  lifetime         particle
  211     2.60330000e-08   # pi+
  321     1.23800000e-08   # K+
  431     5.00000000e-13   # D_s+
  521     1.63800000e-12   # B+
  531     1.42500000e-12   # B_s

Blocks for decay constants

Block FCONST  # Decay constant in GeV
#PDG code  decay constant   particle
  431     2.41000000e-01   # D_s+
  521     2.00000000e-01   # B+
  531     2.45000000e-01   # B_s
Block FCONSTRATIO  # Ratio of decay constant in GeV
#PDG code1 PDG code2  ratio            comment
  321         211     1.18900000e+00   # f_K/f_pi


Block FWCOEF Q= 1.60846e+02

  1. Effective Wilson coefficients in the standard basis
  2. order number value
    0     2     1.00000000e+00
    0     7     -1.82057567e-01
    0     8     -1.06651571e-01
    1     1     2.33177662e+01
    1     4     5.29677461e-01
    1     7     1.35373179e-01
    1     8     -6.94496405e-01
    2     1     3.08498153e+02
    2     2     4.91587899e+01
    2     3     -7.01872509e+00
    2     4     1.25624440e+01
    2     5     8.76122785e-01
    2     6     1.64273022e+00
    2     7     7.05439463e-01
    2     8     -4.65529650e+00

Block FWCOEF Q= 2.34384e+00

  1. Effective Wilson coefficients in the standard basis
  2. order number value
    0     1     -8.47809531e-01
    0     2     1.06562816e+00
    0     3     -1.34214747e-02
    0     4     -1.29110603e-01
    0     5     1.36343067e-03
    0     6     2.88022278e-03
    0     7     -3.73787589e-01
    0     8     -1.80398551e-01
    1     1     1.52422776e+01
    1     2     -2.13433897e+00
    1     3     9.52880033e-02
    1     4     -4.81776851e-01
    1     5     -2.10727176e-02
    1     6     -1.22929476e-02
    1     7     2.14544819e+00
    1     8     -5.16870265e-01
    2     7     1.98785400e+01

Block FOBS # Flavor observables

  1. process observable value
    1     1     2.97350499e-04   # BR(b->s gamma)
    1     2     8.25882011e-02   # Delta0(B->K* gamma)
    2     1     3.46978963e-09   # BR(B_s->mu+ mu-)
    3     1     1.09699841e-04   # BR(B_u->tau nu)
    3     2     9.96640362e-01   # R(B_u->tau nu)
    4     1     6.96556180e-03   # BR(B+->D0 tau nu)
    4     2     2.97261612e-01   # BR(B+->D0 tau nu)/BR(B+-> D0 e nu)
    5     1     4.81251996e-02   # BR(D_s->tau nu)
    6     1     4.96947301e-03   # BR(D_s->mu nu)
    7     1     6.45414388e-01   # BR(K->mu nu)/BR(pi->mu nu)
    7     2     9.99985822e-01   # R_l23

Block FDOBS # Theoretical error for flavor observables

   11     2.97350499e-04   # BR(b->s gamma)

Block FOBSSM # SM prediction for flavor observables

   11     2.97350499e-04   # BR(b->s gamma)

Block FPRECOBS # Other observables

    1     1.93849647e-10   # a_muon

Minutes of meetings

Les Houches, first meeting, 19 June 2009 3:00pm

slides [1]

minutes [2]

Les Houches, second meeting, 24 June 2009 3:00pm

slides

minutes

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