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Publications (27)

hep-ex2026

First Observation of an Exotic Reggeon

G. D. Alexeev, M. G. Alexeev, C. Alice +180

We present new \compass high-statistics measurements of the peripheral production of $I^\cdot I ¨ ^{-}$ and $I^\cdot^{'} I ¨ ^{-}$ pairs in the reactions $I ¨ ^{-} p \to I^\cdot^{(')} I ¨ ^{-} p$ . For the…

hep-ph2023

The Present and Future of QCD

P. Achenbach, D. Adhikari, A. Afanasev +400

This White Paper presents the community inputs and scientific conclusions from the Hot and Cold QCD Town Meeting that took place September 23-25, 2022 at MIT, as part of the Nuclea…

hep-ph2016

The pion-kaon scattering amplitude constrained with forward dispersion relations up to 1.6 GeV

J. R. Pelaez, A. Rodas

In this work we provide simple and precise parameterizations of the existing $I ¨ K$ scattering data from threshold up to 1.6 GeV, which are constrained to satisfy forward dispersion…

nucl-ex2021

Backward-angle Exclusive pi0 Production above the Resonance Region

W. B. Li, G. M. Huber, J. R. Stevens +59

The proposed measurement is a dedicated study of the exclusive electroproduction process,1H(e,e'p)pi0, in the backward-angle regime (u-channel process) above the resonance region.…

hep-ph2019

Pole position of the $a_{1} (1260)$ from $I ¨ $ -decay

JPAC Collaboration, M. Mikhasenko, A. Pilloni +8

We perform an analysis of the three-pion system with quantum numbers $J^{P C} = 1^{++}$ produced in the weak decay of $I ¨ $ leptons. The interaction is known to be dominated by the axi…

hep-ph2026

Production Effects and Final-state Interactions in $I ¨ _{1} \to 3 I ¨ $

D. Winney, S. GonzÃ lez-SolÃs, M. Mikhasenko +8

The paper presents a unified formalism that combines production mechanisms (including the Deck effect) and final‑state interactions to model the π₁(1600) → 3π decay, and fits the C…

#pi1(1600) resonance#three-pion decays#final-state interactions#deck mechanism

hep-ph2017

Strange resonance poles from $K I ¨ $ scattering below 1.8 GeV

J. R. PelÃ¡ez, A. Rodas, J. Ruiz de Elvira

In this work we present a determination of the mass, width and coupling of the resonances that appear in kaon-pion scattering below 1.8 GeV. These are: the much debated scalar $I^º$ …

hep-ph2025

Nonperturbative aspects of the electromagnetic pion form factor at high energies

Joint Physics Analysis Center, :, K. Quirion +10

The structure of hadronic form factors at high energies and their deviations from perturbative quantum chromodynamics provide insight on nonperturbative dynamics. Using an approach…

hep-ph2016

Forward dispersion relations for pion-kaon scattering and the K*0(800) resonance

A. Rodas, J. R. PelÃ¡ez

We review our recent analysis of $I ¨ K$ scattering data in terms of forward dispersion relations, and also present the parameters of the strange resonances. This work consists of fi…

hep-ph2021

Precision dispersive approaches versus unitarized Chiral Perturbation Theory for the lightest scalar resonances $I ¨ / f_{0} (500)$ and $I^º/ K_{0}^{*} (700)$

J. R. PelÃ¡ez, A. Rodas, J. Ruiz de Elvira

For several decades, the $I ¨ / f_{0} (500)$ and $I^º/ K_{0}^{*} (700)$ resonances have been subject to long-standing debate. Both their existence and properties were controversial until very r…

hep-ph2019

Global parameterization of $I ¨ I ¨ $ scattering up to 2 GeV

J. R. Pelaez, A. Rodas, J. Ruiz de Elvira

We provide global parameterizations of $I ¨ I ¨ $ scattering $S 0$ and $P$ partial waves up to roughly 2 GeV for phenomenological use. These parameterizations describe the output and un…

hep-ph2016

Calculation of Regge trajectories of strange resonances and identification of the K0*(800) as a non-ordinary meson

J. R. PelÃ¡ez, A. Rodas

We review how the Regge trajectory of an elastic resonance can be obtained just from its pole position and coupling, using a dispersive formalism. This allows us to deal correctly…

hep-ph2018

$I ¨ I ¨ \to K K ˉ$ scattering up to 1.47 GeV with hyperbolic dispersion relations

J. R. Pelaez, A. Rodas

In this work we provide a dispersive analysis of $I ¨ I ¨ \to K K ˉ$ scattering. For this purpose we present a set of partial-wave hyperbolic dispersion relations using a fa…

hep-ph2024

XYZ spectroscopy at electron-hadron facilities III: Semi-inclusive processes with vector exchanges

Joint Physics Analysis Center Collaboration, D. Winney, A. Pilloni +10

Inclusive production processes will be important for the first observations of $X Y Z$ states at new generation electron-hadron colliders, as they generally benefit from larger cross…

hep-ph2022

Dispersive $I ¨ K \to I ¨ K$ and $I ¨ I ¨ \to K K ˉ$ amplitudes from scattering data, threshold parameters and the lightest strange resonance $I^º$ or $K_{0}^{*} (700)$

J. R. PelÃ¡ez, A. Rodas

We discuss the simultaneous dispersive analyses of $I ¨ K \to I ¨ K$ and $I ¨ I ¨ \to K K ˉ$ scattering data and the $I^º/ K_{0}^{*} (700)$ resonance. The unprecedented statistics of present a…

hep-ph2017

Calculation of resonances from $K I ¨ $ scattering

A. Rodas, J. R. Pelaez, J. Ruiz de Elvira

We present a determination of the mass, width and coupling of the strange resonances appearing in pion-kaon scattering below 1.8 GeV, namely the much debated $K_{0}^{*} (800)$ or $I^º$ ,…

nucl-ex2023

Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab

A. Accardi, P. Achenbach, D. Adhikari +441

This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a…

hep-ph2021

Scalar and tensor resonances in $J / I ¨ $ radiative decays

JPAC Collaboration, A. Rodas, A. Pilloni +4

We perform a systematic analysis of the $J / I ¨ \to I^^{3} I ¨ ^{0} I ¨ ^{0}$ and $\to I^^{3} K_{S}^{0} K_{S}^{0}$ partial waves measured by BESIII. We use a large set of amplitude parametrizations to reduce th…

hep-ph2022

Dispersive determination of low energy $I ¨ K$ interactions

A. Rodas, J. R. PelÃ¡ez

We summarize the application of dispersion relations for the determination of low energy $I ¨ K$ interactions. In particular, we present our recent dispersive analyses for the comple…

hep-ph2023

Khuri-Treiman analysis of $J / I ¨ \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$

JPAC Collaboration, M. Albaladejo, S. GonzÃ lez-SolÃs +12

We study the decay $J / I ¨ \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ within the framework of the Khuri-Treiman equations. We find that the BESIII experimental di-pion mass distribution in the $I ¨ (770)$ -…

hep-ph2018

Review of phenomenological analyses of $I^\cdot^{(')} I ¨ $ resonances

A. Rodas, A. Pilloni, A. Szczepaniak

We present a robust analysis of the $I^\cdot^{(')} I ¨ $ system in COMPASS data. We fit the extracted relative phases and intensities with a coupled-channel formalism enforcing both…

hep-ph2017

Dispersive analysis tools for $I ¨ I ¨ $ and $I ¨ K$ scattering

J. R. PelÃ¡ez, A. Rodas

In this talk we discuss the relevance of dispersive methods and their different applications to obtain simple but rigorous parameterizations of pion-pion and kaon-pion scattering.…

hep-ph2020

Determination of the lightest strange resonance $K_{0}^{*} (700)$ or $I^º$ , from a dispersive data analysis

J. R. PelÃ¡ez, A. Rodas

In this work we present a precise and model-independent dispersive determination from data of the existence and parameters of the lightest strange resonance $I^º/ K_{0}^{*} (700)$ . We use…

hep-ph2019

Determination of the pole position of the lightest hybrid meson candidate

JPAC Collaboration, A. Rodas, A. Pilloni +9

Mapping states with explicit gluonic degrees of freedom in the light sector is a challenge, and has led to controversies in the past. In particular, the experiments have reported t…

hep-ph2017

Analytic approach to pion-kaon scattering and strange resonances

A. Rodas

We review our analysis of $I ¨ K$ scattering using forward dispersion relations. The method yields a set of simple parameterizations that are compatible with forward dispersion relat…

hep-ph2017

The non-ordinary Regge behavior of the K0(800) or Kappa-meson versus the ordinary K0(1430)

J. R. Pelaez, A. Rodas

The Regge trajectory of an elastic resonance can be calculated from dispersion theory, instead of fitted phenomenologically, using only its pole parameters as input. This also prov…

hep-ph2018

Workshop on Pion-Kaon Interactions (PKI2018) Mini-Proceedings. Editors: M. Amaryan, Ulf-G. MeiÃner, C. Meyer, J. Ritman, and I. Strakovsky

M. Amaryan, M. Baalouch, G. Colangelo +21

This volume is a short summary of talks given at the PKI2018 Workshop organized to discuss current status and future prospects of pi-K interactions. The precise data on pi-K intera…

Publications (27)

First Observation of an Exotic Reggeon

The Present and Future of QCD

The pion-kaon scattering amplitude constrained with forward dispersion relations up to 1.6 GeV

Backward-angle Exclusive pi0 Production above the Resonance Region

Pole position of the a1​(1260) from I¨-decay

Production Effects and Final-state Interactions in I¨1​→3I¨

Strange resonance poles from KI¨ scattering below 1.8 GeV

Nonperturbative aspects of the electromagnetic pion form factor at high energies

Forward dispersion relations for pion-kaon scattering and the K*0(800) resonance

Precision dispersive approaches versus unitarized Chiral Perturbation Theory for the lightest scalar resonances I¨/f0​(500) and I^º/K0∗​(700)

Global parameterization of I¨I¨ scattering up to 2 GeV

Calculation of Regge trajectories of strange resonances and identification of the K0*(800) as a non-ordinary meson

I¨I¨→KKˉ scattering up to 1.47 GeV with hyperbolic dispersion relations

XYZ spectroscopy at electron-hadron facilities III: Semi-inclusive processes with vector exchanges

Dispersive I¨K→I¨K and I¨I¨→KKˉ amplitudes from scattering data, threshold parameters and the lightest strange resonance I^º or K0∗​(700)

Calculation of resonances from KI¨ scattering

Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab

Scalar and tensor resonances in J/I¨ radiative decays

Dispersive determination of low energy I¨K interactions

Khuri-Treiman analysis of J/I¨→I¨+I¨−I¨0

Review of phenomenological analyses of I^⋅(′)I¨ resonances

Dispersive analysis tools for I¨I¨ and I¨K scattering

Determination of the lightest strange resonance K0∗​(700) or I^º, from a dispersive data analysis

Determination of the pole position of the lightest hybrid meson candidate

Analytic approach to pion-kaon scattering and strange resonances

The non-ordinary Regge behavior of the K*0(800) or Kappa-meson versus the ordinary K*0(1430)

Workshop on Pion-Kaon Interactions (PKI2018) Mini-Proceedings. Editors: M. Amaryan, Ulf-G. MeiÃner, C. Meyer, J. Ritman, and I. Strakovsky

Pole position of the $a_{1} (1260)$ from $I ¨ $ -decay

Production Effects and Final-state Interactions in $I ¨ _{1} \to 3 I ¨ $

Strange resonance poles from $K I ¨ $ scattering below 1.8 GeV

Precision dispersive approaches versus unitarized Chiral Perturbation Theory for the lightest scalar resonances $I ¨ / f_{0} (500)$ and $I^º/ K_{0}^{*} (700)$

Global parameterization of $I ¨ I ¨ $ scattering up to 2 GeV

$I ¨ I ¨ \to K K ˉ$ scattering up to 1.47 GeV with hyperbolic dispersion relations

Dispersive $I ¨ K \to I ¨ K$ and $I ¨ I ¨ \to K K ˉ$ amplitudes from scattering data, threshold parameters and the lightest strange resonance $I^º$ or $K_{0}^{*} (700)$

Calculation of resonances from $K I ¨ $ scattering

Scalar and tensor resonances in $J / I ¨ $ radiative decays

Dispersive determination of low energy $I ¨ K$ interactions

Khuri-Treiman analysis of $J / I ¨ \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$

Review of phenomenological analyses of $I^\cdot^{(')} I ¨ $ resonances

Dispersive analysis tools for $I ¨ I ¨ $ and $I ¨ K$ scattering

Determination of the lightest strange resonance $K_{0}^{*} (700)$ or $I^º$ , from a dispersive data analysis

The non-ordinary Regge behavior of the K0(800) or Kappa-meson versus the ordinary K0(1430)

Workshop on Pion-Kaon Interactions (PKI2018) Mini-Proceedings. Editors: M. Amaryan, Ulf-G. MeiÃner, C. Meyer, J. Ritman, and I. Strakovsky