Marcel Golz

activity

20152022

most citedInterplay of dineutrino modes with semileptonic rare

B

-decays

57 citations · 310 across the 15 of their papers we have counts for

collaborators

17 papers

hep-ph2022★ 30 cited

Model-independent analysis of $b \to d$ processes

Rigo Bause, Hector Gisbert, Marcel Golz +1

We perform a model-independent analysis of $∣Δ b ∣ = ∣Δ d ∣ = 1$ processes to test the standard model and probe flavor patterns of new physics. Constraints on Wilson coefficients are obtai…

hep-ph2022

Null test BSM searches with rare charm baryon decays

Marcel Golz, Gudrun Hiller, Tom Magorsch

Rare $∣Δ c ∣ = ∣Δ u ∣ = 1$ processes uniquely probe flavor in the Standard Model and beyond from the up-type quark sector. Opportunities to search for BSM physics in ch…

hep-ph2022★ 11 cited

Pinning down $∣Δ c ∣ = ∣Δ u ∣ = 1$ couplings with rare charm baryon decays

Marcel Golz, Gudrun Hiller, Tom Magorsch

We study the full angular distribution of semileptonic rare charm baryon decays in which the secondary baryon undergoes weak decay with sizable polarization parameter, $Ξ_c^+\toΣ^+…

hep-ph2021

Dineutrino modes probing lepton flavor violation

Rigo Bause, Hector Gisbert, Marcel Golz +1

$S U (2)_{L}$ -invariance links charged dilepton $q ˉ q^{'} ℓ^{+} ℓ^{-}$ and dineutrino $q ˉ q^{'} ν ˉ ν$ couplings. This connection can be established using the…

hep-ph2021

Null test searches for BSM physics with rare charm decays

Marcel Golz

Semileptonic Flavor Changing Neutral Current decays of charmed hadrons uniquely probe the up-sector of the Standard Model. Clean null test observables, such as CP-asymmetries, lept…

hep-ph2021★ 57 cited

Interplay of dineutrino modes with semileptonic rare $B$ -decays

Rigo Bause, Hector Gisbert, Marcel Golz +1

We present a systematic global analysis of dineutrino modes $b \to q ν ν ˉ$ , $q = d, s$ , and charged dilepton $b \to q ℓ^{+} ℓ^{-}$ transitions. We derive improved or even ent…

hep-ph2021★ 3 cited

Probing for New Physics with Rare Charm Baryon ( $Λ_{c}$ , $Ξ_{c}$ , $Ω_{c}$ ) Decays

Marcel Golz, Gudrun Hiller, Tom Magorsch

We analyze rare charm baryon decays within the standard model and beyond. We identify all null test observables in unpolarized $Λ_{c} \to p ℓ^{+} ℓ^{-}$ , $ℓ = e, μ$ decays, and st…

hep-ph2021

Physics reach of $D_{(s)} \to π (K) ℓℓ$ and other charming null test opportunities

Marcel Golz

We discuss possibilities to test physics beyond the Standard Model in $∣Δ c ∣ = ∣Δ u ∣ = 1$ semileptonic, hadronic and missing energy decay modes. Clean null test observab…

hep-ph2020★ 35 cited

Theoretical and experimental status of rare charm decays

Hector Gisbert, Marcel Golz, Dominik Stefan Mitzel

Rare charm decays offer the unique possibility to explore flavour-changing neutral-currents in the up-sector within the Standard Model and beyond. Due to the lack of effective meth…

hep-ph2020★ 41 cited

Rare charm $c \to u ν ν ˉ$ dineutrino null tests for $e^{+} e^{-}$ -machines

Rigo Bause, Hector Gisbert, Marcel Golz +1

Rare $∣Δ c ∣ = ∣Δ u ∣ = 1$ transitions into dineutrinos are strongly GIM-suppressed and constitute excellent null tests of the standard model. While branching ratios of $D \to P ν ν ˉ$ …

hep-ph2020★ 7 cited

Lepton universality and lepton flavor conservation tests with dineutrino modes

Rigo Bause, Hector Gisbert, Marcel Golz +1

$S U (2)_{L}$ -invariance links charged dilepton and dineutrino couplings. Phenomenological implications are worked out for flavor changing neutral currents involving strange, charm, be…

hep-ph2020★ 44 cited

Exploiting CP-asymmetries in rare charm decays

Rigo Bause, Hector Gisbert, Marcel Golz +1

We analyze patterns from CP-violating new physics (NP) in hadronic and semileptonic rare charm $∣Δ c ∣ = ∣Δ u ∣ = 1$ transitions. Observation of direct CP-violation in h…

hep-ph2019★ 55 cited

The New Physics Reach of Null Tests with $D \to π ℓℓ$ and $D_{s} \to K ℓℓ$ Decays

Rigo Bause, Marcel Golz, Gudrun Hiller +1

$∣Δ c ∣ = ∣Δ u ∣ = 1$ processes are unique probes of flavor physics in the up-sector within and beyond the Standard Model (SM). SM tests with rare semileptonic charm meson decays are based…

math-ph2018

Dodgson polynomial identities

Marcel Golz

Dodgson polynomials appear in Schwinger parametric Feynman integrals and are closely related to the well known Kirchhoff (or first Symanzik) polynomial. In this article a new combi…

math-ph2017

Contraction of Dirac matrices via chord diagrams

Marcel Golz

Chord diagrams and combinatorics of word algebras are used to model products of Dirac matrices, their traces, and contractions. A simple formula for the result of arbitrary contrac…

math-ph2017★ 5 cited

New graph polynomials in parametric QED Feynman integrals

Marcel Golz

In recent years enormous progress has been made in perturbative quantum field theory by applying methods of algebraic geometry to parametric Feynman integrals for scalar theories.…

math-ph2015★ 22 cited

Graphical functions in parametric space

Marcel Golz, Erik Panzer, Oliver Schnetz

Graphical functions are positive functions on the punctured complex plane $C ∖ {0, 1}$ which arise in quantum field theory. We generalize a parametric integral repr…

Model-independent analysis of b→d processes

Null test BSM searches with rare charm baryon decays

Pinning down ∣Δc∣=∣Δu∣=1 couplings with rare charm baryon decays

Dineutrino modes probing lepton flavor violation

Null test searches for BSM physics with rare charm decays

Interplay of dineutrino modes with semileptonic rare B-decays

Probing for New Physics with Rare Charm Baryon (Λc​, Ξc​, Ωc​) Decays

Physics reach of D(s)​→π(K)ℓℓ and other charming null test opportunities

Theoretical and experimental status of rare charm decays

Rare charm c→uννˉ dineutrino null tests for e+e−-machines

Lepton universality and lepton flavor conservation tests with dineutrino modes

Exploiting CP-asymmetries in rare charm decays

The New Physics Reach of Null Tests with D→πℓℓ and Ds​→Kℓℓ Decays

Dodgson polynomial identities

Contraction of Dirac matrices via chord diagrams

New graph polynomials in parametric QED Feynman integrals

Graphical functions in parametric space

Model-independent analysis of $b \to d$ processes

Pinning down $∣Δ c ∣ = ∣Δ u ∣ = 1$ couplings with rare charm baryon decays

Interplay of dineutrino modes with semileptonic rare $B$ -decays

Probing for New Physics with Rare Charm Baryon ( $Λ_{c}$ , $Ξ_{c}$ , $Ω_{c}$ ) Decays

Physics reach of $D_{(s)} \to π (K) ℓℓ$ and other charming null test opportunities

Rare charm $c \to u ν ν ˉ$ dineutrino null tests for $e^{+} e^{-}$ -machines

The New Physics Reach of Null Tests with $D \to π ℓℓ$ and $D_{s} \to K ℓℓ$ Decays