S. Tostado

activity

20152026

most citedRemarks on the Standard Model predictions for

R (D)

and

R (D^{*})

17 citations · 52 across the 9 of their papers we have counts for

collaborators

Showing hep-phShow all

9 papers · 1 filter

hep-ph2026

Deviations to cobimaximal mixing in a 3+1 neutrino scenario

Diana C. Rivera-Agudelo, S. L. Tostado

Cobimaximal mixing remains a viable approximate pattern since the predicted atmospheric angle ( $π /4$ ) and Dirac CP phase ( $- π /2$ ) are compatible with current experimental data at t…

hep-ph2024

Approximate magic symmetry in a cobimaximal scenario of Majorana neutrinos

Diana C. Rivera-Agudelo, S. L. Tostado, Nelson E. Valderrama-Florez

The searches for an underlying pattern in neutrino masses have motivated different proposals for textures in the neutrino mass matrix, which is also related to particular arrangeme…

hep-ph2022★ 11 cited

Deviations to $μ - τ$ symmetry in a cobimaximal scenario

Diana C. Rivera-Agudelo, S. L. Tostado

Within the different patterns of the neutrino mixing matrix, the cobimaximal mixing remains a plausible possibility for understanding the flavor structure of neutrinos as it is con…

hep-ph2020★ 4 cited

Restricting Majorana phases in the Tri-Bi-Maximal limit

Diana C. Rivera-Agudelo, S. L. Tostado

The Tri-Bi-Maximal pattern has been long investigated as the symmetric scenario that lies behind the neutrino mixing matrix. It predicts a null reactor angle and hence forbids $C P$ …

hep-ph2019★ 5 cited

Deviations to Tri-Bi-Maximal mixing in the limit of $μ - τ$ symmetry

Diana C. Rivera-Agudelo, S. L. Tostado, Abdel Pérez-Lorenzana

In the limit of an approximate $μ - τ$ symmetry in the neutrino mass matrix, we explore deviations to the Tri-Bi-Maximal mixing pattern in the neutrino sector. We consider two differ…

hep-ph2017★ 5 cited

Evaluation of CKM matrix elements from exclusive $P_{ℓ 4}$ decays

C. S. Kim, G. López Castro, S. L. Tostado

We consider the exclusive $P_{ℓ 4}$ decays, $P \to (P_{1} P_{2})_{V} ℓ ν_{ℓ}$ , where the subindex $V$ means that the invariant mass of the pseudoscalar pair is taken within a small…

hep-ph2016★ 17 cited

Remarks on the Standard Model predictions for $R (D)$ and $R (D^{*})$

C. S. Kim, G. Lopez-Castro, S. L. Tostado +1

Semileptonic $b \to c$ transitions, and in particular the ratios $R (D^{(*)}) = \frac{Γ ( B \to D ^{(*)} τ ν )}{Γ ( B \to D ^{(*)} ℓ ν )}$ , can be used to test the univers…

hep-ph2015★ 1 cited

A new long distance contribution to $B^{\pm} \to K^{\pm} / π^{\pm} ℓ^{+} ℓ -$ decays

A. Guevara, G. López Castro, P. Roig +1

We have identified a missing long-distance (one-photon exchange) contribution to the $B^{\pm} \to K^{\pm} / π^{\pm} ℓ^{+} ℓ^{-}$ decays. Although it does not help to explain the anomaly mea…

hep-ph2015★ 9 cited

Long-distance weak annihilation contribution to the $B^{\pm} \to (π^{\pm}, K^{\pm}) ℓ^{+} ℓ^{-}$ decays

A. Guevara, G. López Castro, P. Roig +1

We propose an alternative evaluation of the long-distance weak annihilation (WA, also called one-photon exchange in this paper) contribution to the rare semileptonic $B^{\pm}\to (π…

Deviations to cobimaximal mixing in a 3+1 neutrino scenario

Approximate magic symmetry in a cobimaximal scenario of Majorana neutrinos

Deviations to μ−τ symmetry in a cobimaximal scenario

Restricting Majorana phases in the Tri-Bi-Maximal limit

Deviations to Tri-Bi-Maximal mixing in the limit of μ−τ symmetry

Evaluation of CKM matrix elements from exclusive Pℓ4​ decays

Remarks on the Standard Model predictions for R(D) and R(D∗)

A new long distance contribution to B±→K±/π±ℓ+ℓ− decays

Long-distance weak annihilation contribution to the B±→(π±,K±)ℓ+ℓ− decays

Deviations to $μ - τ$ symmetry in a cobimaximal scenario

Deviations to Tri-Bi-Maximal mixing in the limit of $μ - τ$ symmetry

Evaluation of CKM matrix elements from exclusive $P_{ℓ 4}$ decays

Remarks on the Standard Model predictions for $R (D)$ and $R (D^{*})$

A new long distance contribution to $B^{\pm} \to K^{\pm} / π^{\pm} ℓ^{+} ℓ -$ decays

Long-distance weak annihilation contribution to the $B^{\pm} \to (π^{\pm}, K^{\pm}) ℓ^{+} ℓ^{-}$ decays