CP Violation Beyond the Standard Model

Riccardo Rattazzi; Yosef Nir; Yuval Grossman

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CP Violation Beyond the Standard Model

Yuval Grossman, Yosef Nir, Riccardo Rattazzi

High Energy Physics - Phenomenology · Submitted 6 Jan 1997

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

The authors' main claim Finally, we briefly discuss the potential of future measurements of CP violation to discover New Physics.

how it is stated · hedged possibility 0.95 read the record →

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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.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 7,475 input tokens, $0.0003 reported.

What the abstract itself states, as probabilities: claims first 0.02 · states limitation 0.11 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.03 · compares with prior results 0.10 · mentions code or data availability 0.01.

The abstract, sentence by sentence

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

We review CP violation in various extensions of the electroweak sector of the Standard Model. A particular emphasis is put on supersymmetric models. We describe the two CP problems of supersymmetry, concerning $d_N$ and $\epsilon_K$. We critically review the various mechanisms that have been suggested to solve these problems: exact universality, approximate CP symmetry, alignment, approximate universality and heavy squarks. We explain how future measurements of CP violation will test these mechanisms. We describe extensions of the quark sector and their implications on CP asymmetries in neutral B decays, on the $K_L \to \pi \nu \bar\nu$ decay and on $\Delta\Gamma(B_s)$. We discuss CP violation in charged scalar exchange in models with natural flavor conservation and explain how transverse lepton polarization in meson decays can probe such models. CP violation in neutral scalar exchange arises in models of horizontal symmetries and may be manifest in heavy quark (b and t) physics. We describe the implications of Left-Right Symmetric models on $d_N$, $\epsilon_K$, $\epsilon'/\epsilon$ and CP asymmetries in B decays. Finally, we briefly discuss the potential of future measurements of CP violation to discover New Physics.

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	We review CP violation in various extensions of the electroweak sector of the Standard Model.	contribution 0.86	0.47	0.05	asserted 0.60
s1	A particular emphasis is put on supersymmetric models.	contribution 0.77	0.34	0.03	asserted 0.87
s2	We describe the two CP problems of supersymmetry, concerning $d_N$ and $\epsilon_K$.	contribution 0.59	0.13	0.04	asserted 0.97
s3	We critically review the various mechanisms that have been suggested to solve these problems: exact universality, approximate CP symmetry, alignment, approximate universality and heavy squarks.	contribution 0.85	0.30	0.05	asserted 0.76
s4	We explain how future measurements of CP violation will test these mechanisms.	future work 0.52	0.41	0.08	asserted 0.88
s5	We describe extensions of the quark sector and their implications on CP asymmetries in neutral B decays, on the $K_L \to \pi \nu \bar\nu$ decay and on $\Delta\Gamma(B_s)$.	contribution 0.97	0.19	0.04	asserted 0.86
s6	We discuss CP violation in charged scalar exchange in models with natural flavor conservation and explain how transverse lepton polarization in meson decays can probe such models.	contribution 0.89	0.09	0.03	asserted 0.72
s7	CP violation in neutral scalar exchange arises in models of horizontal symmetries and may be manifest in heavy quark (b and t) physics.	background 0.56	0.07	0.04	hedged possibility 0.90
s8	We describe the implications of Left-Right Symmetric models on $d_N$, $\epsilon_K$, $\epsilon'/\epsilon$ and CP asymmetries in B decays.	contribution 0.90	0.14	0.05	asserted 0.94
s9	Finally, we briefly discuss the potential of future measurements of CP violation to discover New Physics.	future work 0.82	0.30	0.27	hedged possibility 0.95

What kind of paper the classifier reports this is: review 1.00 · evidence from literature 0.99.

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

We review CP violation in various extensions of the electroweak sector of the Standard Model. A particular emphasis is put on supersymmetric models. We describe the two CP problems of supersymmetry, concerning $d_N$ and $\epsilon_K$. We critically review the various mechanisms that have been suggested to solve these problems: exact universality, approximate CP symmetry, alignment, approximate universality and heavy squarks. We explain how future measurements of CP violation will test these mechanisms. We describe extensions of the quark sector and their implications on CP asymmetries in neutral B decays, on the $K_L \to \pi \nu \bar\nu$ decay and on $\Delta\Gamma(B_s)$. We discuss CP violation in charged scalar exchange in models with natural flavor conservation and explain how transverse lepton polarization in meson decays can probe such models. CP violation in neutral scalar exchange arises in models of horizontal symmetries and may be manifest in heavy quark (b and t) physics. We describe the implications of Left-Right Symmetric models on $d_N$, $\epsilon_K$, $\epsilon'/\epsilon$ and CP asymmetries in B decays. Finally, we briefly discuss the potential of future measurements of CP violation to discover New Physics.

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References

Forward citations

Cited by 11 Pith papers

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

Out Of This World Supersymmetry Breaking
hep-th 1998-10 accept novelty 8.0 of 10

The super-Weyl anomaly unavoidably transmits supersymmetry breaking to gauginos and scalars, and in a brane-sequestered geometry this anomaly mediation dominates, fixing soft masses in terms of renormalization group b...
Baryogenesis and Dark Matter from $B$ Mesons
hep-ph 2018-10 conditional novelty 6.0 of 10

A new mechanism generates the baryon asymmetry and dark matter abundance from CP-violating B meson oscillations and decays, predicting a positive leptonic asymmetry and B decays to a baryon plus missing energy.
A taste of dark matter: Flavour constraints on pseudoscalar mediators
hep-ph 2014-12 conditional novelty 6.0 of 10

Flavour-changing meson decays tightly constrain light pseudoscalar dark matter mediators, ruling out a DAMA explanation and requiring mediator masses above roughly 10 GeV to fit the Galactic Centre excess.
MFV SUSY: A Natural Theory for R-Parity Violation
hep-ph 2011-11 accept novelty 6.0 of 10

Imposing holomorphic minimal flavor violation on the R-parity-violating MSSM leaves one baryon-number-violating coupling, making R-parity an accidental symmetry and keeping the proton stable without a discrete symmetry.
Relations between \Delta M_{s,d} and B_{s,d}\to \mu\bar\mu in Models with Minimal Flavour Violation
hep-ph 2003-03 accept novelty 6.0 of 10

In minimal-flavour-violation models, Br(B_q to mu mu) divided by Delta M_q depends only on short-distance functions, lifetimes, and the well-controlled bag parameter B-hat_q, giving cleaner predictions and a near-para...

Show 6 more citing papers

Phenomenology of non-standard Z couplings in exclusive semileptonic b -> s transitions
hep-ph 2000-06 accept novelty 6.0 of 10

New physics in the flavour-changing Z coupling would shift the rates of B to K(*) lepton pairs, B to K(*) neutrinos and B_s to mu mu, and would flip or suppress the forward-backward muon asymmetry in Bbar to K* mu mu.
Next to Minimal Flavor Violation
hep-ph 2005-09 conditional novelty 5.0 of 10

Current B-factory data still allow new physics at a few TeV to contribute 30 to 40 percent of the Standard Model amplitude to B and K meson mixing, with arbitrary CP phase, so the flavor scale need not sit far above t...
Universal Unitarity Triangle and Physics Beyond the Standard Model
hep-ph 2000-07 accept novelty 5.0 of 10

Models with no new operators, no new phases, and flavour transitions governed by the CKM matrix share a single unitarity triangle, which the B_d to B_s mass-difference ratio plus sin(2 beta) determines free of new-phy...
Weak Hamiltonian, CP Violation and Rare Decays
hep-ph 1998-06 unverdicted novelty 3.0 of 10

The lectures provide a pedagogical, calculable construction of effective weak Hamiltonians for meson decays, including the 6x6 one-loop anomalous dimension matrix and a procedure for two-loop evanescent-operator corrections.
Theories with Gauge-Mediated Supersymmetry Breaking
hep-ph 1998-01 accept novelty 3.0 of 10

Gauge-mediated supersymmetry breaking generates flavour-universal soft terms at a messenger scale and yields a predictive sparticle spectrum with the gravitino as the lightest supersymmetric particle.
A Supersymmetry Primer
hep-ph 1997-09 accept novelty 1.0 of 10

A self-contained pedagogical introduction to supersymmetry and the MSSM, from Lagrangian construction through soft breaking to collider phenomenology.

How the literature uses it

9 arXiv papers cite this in 10 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 · 5 sentences without a confident label

Cites it as background 5 papers

In the model with $Z$-mediated FCNC's ($Z$FCNC), a new vector-like isosinglet down-type quark $d'$ is added to the particle spectrum [ref] .

Neutral Gauge Boson Contributions to the Dimuon Charge Asymmetry in B Decays · $Z$-mediated FCNC's · 1.00
A notable example is the $B_s^0$–$B̅_s^0$ mixing phase $ϕ_s$, which is expected to be very sensitive to new CP violating contributions (for a review see Ref. [ref] ).

An exploration of $B_s \to J/\psi s\bar{s}$ · Introduction · 0.98
[ref] particularly inspiring.

Effective Theories for Quark Flavour Physics · Conclusion and further reading · 0.91

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