Flavour Les Houches Accord
From Wiki Les Houches 09
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for modifications and improvements. Please don't modify the current proposal unless a consensus is reached on the | 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 [http://www.lpthe.jussieu.fr/LesHouches09Wiki/index.php?title=Talk:Flavor_Les_Houches_Accord discussion] page associated to this page. | discussion subpage. For general comments on the FLHA, not related to a specific block, you can also use the [http://www.lpthe.jussieu.fr/LesHouches09Wiki/index.php?title=Talk:Flavor_Les_Houches_Accord discussion] page associated to this page. | ||
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=== Blocks for program and model information === | === Blocks for program and model information === | ||
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#process observable error | #process observable error | ||
1 1 2.97350499e-04 # BR(b->s gamma) | 1 1 2.97350499e-04 # BR(b->s gamma) | ||
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= Minutes of meetings = | = Minutes of meetings = | ||
Revision as of 08:52, 25 June 2009
Contents |
Purpose of the accord
The objective of this accord a clear and well-defined structure for interfacing computational tools of "New Physics" models with low-energy flavour calculations. It should hence provide a 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.
NB: FLHA block names generically begin with "F".
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 the hadron masses in GeV. The hadrons are labeled with the PDG codes as usual.
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
The lifetimes are taken directly from PDG in sec.
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 code2 ratio comment 321 211 1.18900000e+00 # f_K/f_pi
Blocks for Wilson coefficients
Block FWCOEF Q= 1.60846e+02 #Effective Wilson coefficients in the standard basis #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 #Effective Wilson coefficients in the standard basis #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
It might be better to split the Wilson coefficients into two blocks corresponding to Delta_F=1 and Delta_F=2.
Block Flavor observables
Block FOBS # Flavor observables #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
The first column here specifies the underlying process (e.g. b to s gamma) and the second column defines the observable (e.g. BR, isospin,...). The numbering of the processes and observables is not set yet.
Block theoretical errors
Block FOBSERR # Theoretical error for flavor observables #process observable error 1 1 2.97350499e-04 # BR(b->s gamma)
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 [3]
minutes