Chirally enhanced corrections to FCNC processes in the generic MSSM

Andreas Crivellin; Ulrich Nierste

RECORD

Chirally enhanced corrections to FCNC processes in the generic MSSM

Andreas Crivellin, Ulrich Nierste

High Energy Physics - Phenomenology · Submitted 30 Aug 2009

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Our corrections substantially change the values of the parameters delta^{d,LL}_{23}, delta^{d,LR}_{23}, delta^{d,RL}_{23}, and delta^{d,RR}_{23} extracted from Br[B->X_s gamma] if tan(beta) is large.

how it is stated · asserted 1.00 read the record →

Comment (0) Read on arXiv ↗

Cite ▾

Claim paper

The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

Open the compiled record

Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 5,756 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.20 · human participants 0.01 · controlled comparison 0.37 · randomized assignment 0.01 · states quantitative result 0.31 · compares with prior results 0.90 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; show every role.

Chirally enhanced supersymmetric QCD corrections to FCNC processes are investigated in the framework of the MSSM with generic sources of flavor violation. These corrections arise from flavor-changing self-energy diagrams and can be absorbed into a finite renormalization of the squark-quark-gluino vertex. In this way enhanced two-loop and even three-loop diagrams can be efficiently included into a leading-order (LO) calculation. Our corrections substantially change the values of the parameters delta^{d,LL}_{23}, delta^{d,LR}_{23}, delta^{d,RL}_{23}, and delta^{d,RR}_{23} extracted from Br[B->X_s gamma] if tan(beta) is large. We find stronger (weaker) constraints compared to the LO result for negative (positive) values of mu. The constraints on delta^{d,LR,RL}_{13} and delta^{d,LR,RL}_{23} from B_d mixing and B_s mixing change drastically if the third-generation squark masses differ from those of the first two generations. K mixing is more strongly affected by the chirally enhanced loop diagrams and even sub-percent deviations from degenerate down and strange squark masses lead to profoundly stronger constraints on delta^{d,LR,RL}_{12}.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	Chirally enhanced supersymmetric QCD corrections to FCNC processes are investigated in the framework of the MSSM with generic sources of flavor violation.	contribution 0.96	0.80	0.07	asserted 0.91
s1	These corrections arise from flavor-changing self-energy diagrams and can be absorbed into a finite renormalization of the squark-quark-gluino vertex.	method 0.72	0.44	0.06	asserted 1.00
s2	In this way enhanced two-loop and even three-loop diagrams can be efficiently included into a leading-order (LO) calculation.	method 0.92	0.56	0.11	asserted 0.92
s3	Our corrections substantially change the values of the parameters delta^{d,LL}_{23}, delta^{d,LR}_{23}, delta^{d,RL}_{23}, and delta^{d,RR}_{23} extracted from Br[B->X_s gamma] if tan(beta) is large.	result 0.99	0.88	0.37	asserted 1.00
s4	We find stronger (weaker) constraints compared to the LO result for negative (positive) values of mu.	result 0.98	0.96	0.17	asserted 1.00
s5	The constraints on delta^{d,LR,RL}_{13} and delta^{d,LR,RL}_{23} from B_d mixing and B_s mixing change drastically if the third-generation squark masses differ from those of the first two generations.	result 1.00	0.84	0.13	asserted 1.00
s6	K mixing is more strongly affected by the chirally enhanced loop diagrams and even sub-percent deviations from degenerate down and strange squark masses lead to profoundly stronger constraints on delta^{d,LR,RL}_{12}.	result 0.99	0.83	0.18	asserted 1.00

What kind of paper the classifier reports this is: theoretical result 0.94 · evidence from proof or derivation 0.52.

What was examined, and what was not

sources read

arXiv listing abstract v2

not examined

full text
figures and tables
references and citing sentences
relations to other papers

levels run

P abstract

not run

S sections
T body sentences
C citations
R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

Chirally enhanced supersymmetric QCD corrections to FCNC processes are investigated in the framework of the MSSM with generic sources of flavor violation. These corrections arise from flavor-changing self-energy diagrams and can be absorbed into a finite renormalization of the squark-quark-gluino vertex. In this way enhanced two-loop and even three-loop diagrams can be efficiently included into a leading-order (LO) calculation. Our corrections substantially change the values of the parameters delta^{d,LL}_{23}, delta^{d,LR}_{23}, delta^{d,RL}_{23}, and delta^{d,RR}_{23} extracted from Br[B->X_s gamma] if tan(beta) is large. We find stronger (weaker) constraints compared to the LO result for negative (positive) values of mu. The constraints on delta^{d,LR,RL}_{13} and delta^{d,LR,RL}_{23} from B_d mixing and B_s mixing change drastically if the third-generation squark masses differ from those of the first two generations. K mixing is more strongly affected by the chirally enhanced loop diagrams and even sub-percent deviations from degenerate down and strange squark masses lead to profoundly stronger constraints on delta^{d,LR,RL}_{12}.

Human review

How Pith checks papers → · Full audit of this paper →

References

Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Forward backward CP asymmetry in $\tau^- \to K \pi \nu_{\tau}$ in the Left-Right Inverse seesaw model
hep-ph 2026-04 unverdicted novelty 6.0 of 10

The Left-Right Inverse Seesaw model generates a non-decoupling scalar operator that enhances the differential forward-backward CP asymmetry A_CP^FB(s) near K* and K0* resonances in τ → Kπν_τ while leaving the integrat...
Effective Higgs Vertices in the generic MSSM
hep-ph 2010-12 conditional novelty 6.0 of 10

New tan(beta)-enhanced corrections to Higgs-quark couplings arise from ordinary holomorphic A-terms whenever flavor-diagonal non-holomorphic terms are also present.
SUSY_FLAVOR v2.5: a computational tool for FCNC and CP-violating processes in the MSSM
hep-ph 2012-03 conditional novelty 5.0 of 10

SUSY_FLAVOR v2.5 is an updated public Fortran code that calculates a broad set of MSSM flavor and CP observables with exact sfermion diagonalization and resummation of chirally enhanced corrections.
Complete resummation of chirally-enhanced loop-effects in the MSSM with non-minimal sources of flavor-violation
hep-ph 2011-03 accept novelty 5.0 of 10

The authors give analytic, all-orders resummed effective vertices for chirally-enhanced gluino, chargino and neutralino loop corrections in the general MSSM, valid in the decoupling limit.
Anatomy and Phenomenology of FCNC and CPV Effects in SUSY Theories
hep-ph 2009-09 accept novelty 5.0 of 10

Correlation patterns among B, K, D and lepton observables separate supersymmetric flavour models with right-handed currents from those with left-handed currents, and both from Little-Higgs and Randall-Sundrum alternatives.

Show 1 more citing papers

B -> X_d gamma and constraints on new physics
hep-ph 2011-06 conditional novelty 4.0 of 10

Using an improved measurement and reduced hadronic uncertainties, the authors tighten the Standard Model prediction for B to X_d gamma and derive updated bounds on new physics, including |V^R_td| below 1.5 times 10^-4.

How the literature uses it

23 arXiv papers cite this in 29 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 21 sentences without a confident label

Cites it as background 8 papers

In NMFV scenarios, some calculations have been performed at the one-loop level (see e.g. Refs. [ref] ), but the general contributions to $C_7$, $C_9$ and $(g-2)_μ$ are not known.

Flavour anomalies in supersymmetric scenarios with non-minimal flavour violation · Analytical calculations in NMFV-MSSM scenarios without approximation · 0.83
For the analysis of the analogous effects in the general MSSM we refer to Ref. [ref] .

Gluino-mediated FCNCs in the MSSM with large tan(beta) · Flavour-changing gluino coupling in naive MFV at large tan$β$ · 0.80
In addition, the couplings also depend on the bottom quark threshold corrections and the effect of these corrections have been the subject of many works especially in the large $$ regime [ref] .

Threshold Corrections to the Bottom Quark Mass Revisited · Higgs couplings to the bottom quark · 0.98

What it cites · 53 sentences without a confident label

Contests 1 paper

Heff agrees with the result in Ref. [ref] and corrects two color factors in Eq. II.9 of Ref. [ref] .

Muon anomalous magnetic moment, lepton flavor violation, and flavor changing neutral current processes in SUSY GUT with right-handed neutrino · $ΔF=2$ processes · contest 0.87

Builds on 3 papers

These self-energies have been analyzed in the context of charged-current processes in Ref. [ref] and this paper contains the complementary study of FCNC processes.

Supersymmetric renormalisation of the CKM matrix and new constraints on the squark mass matrices · Introduction · 0.93
Ref. [ref] extended the study of Ref. [ref] by including the MFV effects.

Bounds on flavour violating parameters in supersymmetry · Introduction · 0.93
Ref. [ref] extended the study of Ref. [ref] by including the MFV effects.

Gluino Contribution to Radiative B Decays: Organization of QCD Corrections and Leading Order Results · Introduction · 0.93

Uses the method or tool of 5 papers

Calculations are easiest, however, if one absorbs the chirally enhanced corrections into the quark-squark-gluino vertex through unitary rotations $ΔU^q_A$ ($A=L,R$ denotes the chirality) in flavor space [ref] .

Supersymmetric renormalisation of the CKM matrix and new constraints on the squark mass matrices · One-loop renormalization of the quark-squark-gluino vertex · 0.94
To incorporate the large logarithms from QCD we use the RG evolution computed in Refs. [ref] .

Master Formulae for Delta F=2 NLO-QCD Factors in the Standard Model and Beyond · $ΔF=2$ processes · 0.96
To incorporate the large logarithms from QCD we use the RG evolution computed in Refs. [ref] .

B_d-Bbar_d Mixing and the B_d -> J/psi K_s Asymmetry in General SUSY Models · $ΔF=2$ processes · 0.96

Uses data or values from 6 papers

For the theoretical prediction, the value of reference [ref] is used at the lower and upper end of the error range.

NNLO QCD corrections to the B -> X_s gamma matrix elements using interpolation in m_c · $B→X_sγ$ · 0.99
tb < g r a p h i c s > < g r a p h i c s > Left: Allowed range for NP contributions to K mixing determined by the UTFit collaboration [ref] .

2000 CKM-Triangle Analysis A Critical Review with Updated Experimental Inputs and Theoretical Parameters · Section · 0.94
tb < g r a p h i c s > < g r a p h i c s > Allowed range for NP-contributions to , $q=d,s$, in the $ϕ_B_q-C_B_q$ plane taken from the web update of Ref. [ref] .

First Evidence of New Physics in b <--> s Transitions · Section · 0.99

Compares with 5 papers

Another important difference between Ref. [ref] and this paper concerns the definitions of the super-CKM basis and the mass insertion parameters: * We use the tree-level definition of the super-CKM basis (see Ref. [ref] ) which permits an analytical solution to the necessary all-order resummations of enhanced corrections.

New Higgs Effects in B--Physics in Supersymmetry with General Flavour Mixing · One-loop renormalization of the quark-squark-gluino vertex · 0.82
Another important difference between Ref. [ref] and this paper concerns the definitions of the super-CKM basis and the mass insertion parameters: * We use the tree-level definition of the super-CKM basis (see Ref. [ref] ) which permits an analytical solution to the necessary all-order resummations of enhanced corrections.

Supersymmetric renormalisation of the CKM matrix and new constraints on the squark mass matrices · One-loop renormalization of the quark-squark-gluino vertex · 0.82
We show how the renormalization of the quark-squark-gluino vertex affects the branching-ratio for different values of $μ$.[We find agreement of our LO Wilson coefficients with the gluino part given in Ref. [ref] .] Throughout this section we assume that $μ$ and the elements $Δ^q AB_ij$ with $AB=LL,LR,RL,RR$, of the squark mass matrices are real.

Bounds on flavour violating parameters in supersymmetry · $B→X_sγ$ · 0.97

Cites as support 1 paper

In Ref. [ref] it has been shown that this idea complies with present-day data on FCNC processes.

Supersymmetric renormalisation of the CKM matrix and new constraints on the squark mass matrices · Conclusions · 0.97

Cites as background 14 papers

We further recall that the contributions from the dimension-six operators $O_7b,g̃$ and $O_8b,g̃$ (defined according to Ref. [ref] ) are suppressed by a factor of $M_SUSY/μtanβ$ compared to the contributions from $O_7g̃$ and $O_8g̃$.

Gluino Contribution to Radiative B Decays: Organization of QCD Corrections and Leading Order Results · $B→X_sγ$ · 0.80
[ref] FCNC data (on B mixing, K mixing, $μ→eγ$ and $b→sγ$) were used to constrain the off-diagonal elements of the sfermion mass matrices, while the diagonal ones were constrained from the electric dipole moments (and from a fine tuning argument).

A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model · Introduction · 0.93
For a detailed discussion of the relation between Yukawa couplings and quark masses for different renormalization schemes see Ref. [ref] .

Resummation of tan-beta-enhanced supersymmetric loop corrections beyond the decoupling limit · One-loop renormalization of the quark-squark-gluino vertex · 0.98

Discussion

Know something about this paper? Leave a comment, or highlight any passage above to comment on it.