Vector meson exchange contributions to K --> pi gamma gamma and K(L) -> gamma lepton+ lepton-

Giancarlo D'Ambrosio; Jorge Portoles

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Vector meson exchange contributions to K --> pi gamma gamma and K(L) -> gamma lepton+ lepton-

Giancarlo D'Ambrosio, Jorge Portoles

High Energy Physics - Phenomenology · Submitted 4 Oct 1996

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

The authors' main claim We find in fact a very nice agreement with the phenomenology of K -> pi gamma gamma and K(L) -> gamma gamma^*, more predictive power and a deeper understanding of the O(p^6) local operators.

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arXiv IDhep-ph/9610244 (version 2)

Pith IDSYKBR74Q, Pith's permanent record of this paper and its review

CitationGiancarlo D'Ambrosio, Jorge Portoles. "Vector meson exchange contributions to K --> pi gamma gamma and K(L) -> gamma lepton+ lepton-." arXiv:hep-ph/9610244 (1996). https://pith.science/paper/SYKBR74Q

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What the abstract itself states, as probabilities: claims first 0.10 · states limitation 0.06 · human participants 0.01 · controlled comparison 0.05 · randomized assignment 0.01 · states quantitative result 0.05 · compares with prior results 0.93 · 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.

We have studied in the framework of Chiral Perturbation Theory (ChPT) the O(p^6) Vector Meson contributions to K -> pi gamma gamma and K(L) -> gamma gamma^*. We construct the most general ChPT lagrangian for the weak Vector-Pseudoscalar-Photon (VPgamma) vertex for K -> pi gamma gamma and K(L) -> gamma gamma^* and consequently we get the full structure of the O(p^6) local contributions generated by Vector Meson exchange. Then we compute new factorizable contributions to the weak VPgamma vertex generated by the odd-intrinsic parity violating lagrangian with no additional couplings. We find in fact a very nice agreement with the phenomenology of K -> pi gamma gamma and K(L) -> gamma gamma^*, more predictive power and a deeper understanding of the O(p^6) local operators. A novel interpretation of the K(L) -> gamma gamma^* data is given. Also a comparison with the existing models is presented.

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 have studied in the framework of Chiral Perturbation Theory (ChPT) the O(p^6) Vector Meson contributions to K -> pi gamma gamma and K(L) -> gamma gamma^*.	contribution 0.99	0.94	0.07	asserted 0.98
s1	We construct the most general ChPT lagrangian for the weak Vector-Pseudoscalar-Photon (VPgamma) vertex for K -> pi gamma gamma and K(L) -> gamma gamma^* and consequently we get the full structure of the O(p^6) local contributions generated by Vector Meson exchange.	method 0.74	0.95	0.07	asserted 1.00
s2	Then we compute new factorizable contributions to the weak VPgamma vertex generated by the odd-intrinsic parity violating lagrangian with no additional couplings.	contribution 0.57	0.94	0.06	asserted 1.00
s3	We find in fact a very nice agreement with the phenomenology of K -> pi gamma gamma and K(L) -> gamma gamma^*, more predictive power and a deeper understanding of the O(p^6) local operators.	result 0.85	0.94	0.71	asserted 1.00
s4	A novel interpretation of the K(L) -> gamma gamma^* data is given.	interpretation 0.92	0.89	0.12	asserted 0.93
s5	Also a comparison with the existing models is presented.	contribution 0.93	0.74	0.04	asserted 0.90

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.84.

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arXiv listing abstract v2

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full text
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C citations
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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 have studied in the framework of Chiral Perturbation Theory (ChPT) the O(p^6) Vector Meson contributions to K -> pi gamma gamma and K(L) -> gamma gamma^*. We construct the most general ChPT lagrangian for the weak Vector-Pseudoscalar-Photon (VPgamma) vertex for K -> pi gamma gamma and K(L) -> gamma gamma^* and consequently we get the full structure of the O(p^6) local contributions generated by Vector Meson exchange. Then we compute new factorizable contributions to the weak VPgamma vertex generated by the odd-intrinsic parity violating lagrangian with no additional couplings. We find in fact a very nice agreement with the phenomenology of K -> pi gamma gamma and K(L) -> gamma gamma^*, more predictive power and a deeper understanding of the O(p^6) local operators. A novel interpretation of the K(L) -> gamma gamma^* data is given. Also a comparison with the existing models is presented.

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References

Forward citations

Cited by 5 Pith papers

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

Improving lepton flavour universality tests with $K_L$ decays
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Patterns of Flavour Violation in Models with Vector-Like Quarks
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A systematic survey of eleven vector-like-quark models shows their kaon and B-meson predictions fall into distinguishable patterns, and that combining mixing with rare-decay data fixes the new quark mass independently...
A taste of dark matter: Flavour constraints on pseudoscalar mediators
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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.
Prospects for $K_{L}\to\pi^{0}\nu\bar{\nu}$, $K_S\to\mu^+\mu^-$, $K_L\to\pi^0 \ell^+\ell^-$ and $\varepsilon^{\prime}/\varepsilon$ after the new $K^{+}\to\pi^{+}\nu\bar{\nu}$ result from NA62
hep-ph 2026-07 conditional novelty 5.0 of 10

A Z' model with both left- and right-handed sbar-d couplings can enhance K_L→π0ννbar by an order of magnitude while keeping K+→π+ννbar and ε_K SM-like.

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11 arXiv papers cite this in 14 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 · 13 sentences without a confident label

Cites it as background 1 paper

The sign of the LD contribution is discussed in [ref] .

Theoretical implications for a new measurement of $K_L\to \pi^0 \ell\ell$ · Theoretical Methodology · 0.93

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