Exclusive $π^{-}$ Electroproduction off the Neutron in Deuterium in the Resonance Region

(CLAS Collaboration)

Exclusive $π^{-}$ Electroproduction off the Neutron in Deuterium in the Resonance Region

(CLAS Collaboration)

Research output: Working paper › Preprint

Abstract

New results for the exclusive and quasi-free cross sections off neutrons bound in deuterium ${\gamma}_vn(p) \rightarrow p{\pi}^{-} (p)$ are presented over a wide final state hadron angle range with a kinematic coverage of the invariant mass ($W$) up to 1.825 GeV and the virtual photon four-momentum transfer squared ($Q^{2}$) from 0.4 to 1.0 GeV$^2$. The exclusive structure functions have been extracted and their Legendre moments were obtained. Final-state-interaction contributions have been kinematically separated from the extracted quasi-free cross sections off bound neutrons solely based on the analysis of the experimental data. These new results will serve as long-awaited input for phenomenological analyses to extract the $Q^{2}$ evolution of previously unavailable $n \to N^{*}$ electroexcitation amplitudes and to improve state-of-the-art models of neutrino scattering off nuclei by augmenting the already available results from free protons.

Original language	Undefined/Unknown
Publisher	arXiv
Publication status	Published - 31 Mar 2022

Bibliographical note

The author list has been updated

Keywords

nucl-ex

Access to Document

2203.16785v2

Cite this

@techreport{4f93502769e94a5598ceba75d605dc0c,

title = "Exclusive $π^{-}$ Electroproduction off the Neutron in Deuterium in the Resonance Region",

abstract = "New results for the exclusive and quasi-free cross sections off neutrons bound in deuterium ${\gamma}_vn(p) \rightarrow p{\pi}^{-} (p)$ are presented over a wide final state hadron angle range with a kinematic coverage of the invariant mass ($W$) up to 1.825 GeV and the virtual photon four-momentum transfer squared ($Q^{2}$) from 0.4 to 1.0 GeV$^2$. The exclusive structure functions have been extracted and their Legendre moments were obtained. Final-state-interaction contributions have been kinematically separated from the extracted quasi-free cross sections off bound neutrons solely based on the analysis of the experimental data. These new results will serve as long-awaited input for phenomenological analyses to extract the $Q^{2}$ evolution of previously unavailable $n \to N^{*}$ electroexcitation amplitudes and to improve state-of-the-art models of neutrino scattering off nuclei by augmenting the already available results from free protons.",

keywords = "nucl-ex",

author = "{(CLAS Collaboration)} and Gothe, {R. W.} and Mokeev, {V. I.} and G. Hollis and Amaryan, {M. J.} and Armstrong, {W. R.} and H. Atac and H. Avakian and L. Barion and M. Battaglieri and I. Bedlinskiy and B. Benkel and F. Benmokhtar and A. Bianconi and L. Biondo and A. Biselli and F. Boss{\`u} and S. Boiarinov and M. Bond{\`i} and Brinkmann, {K. T.} and Briscoe, {W. J.} and S. Bueltmann and D. Bulumulla and Burkert, {V. D.} and R. Capobianco and Carman, {D. S.} and Carvajal, {J. C.} and A. Celentano and V. Chesnokov and T. Chetry and G. Ciullo and G. Clash and Cole, {P. L.} and M. Contalbrigo and G. Costantini and A. D'Angelo and N. Dashyan and Vita, {R. De} and M. Defurne and A. Deur and S. Diehl and C. Djalali and R. Dupre and H. Egiyan and Alaoui, {A. El} and Fassi, {L. El} and L. Elouadrhiri and S. Fegan and M. Nicol and Watts, {D. P.} and N. Zachariou",

note = "The author list has been updated",

year = "2022",

month = mar,

day = "31",

language = "Undefined/Unknown",

publisher = "arXiv",

type = "WorkingPaper",

institution = "arXiv",

}

TY - UNPB

T1 - Exclusive $π^{-}$ Electroproduction off the Neutron in Deuterium in the Resonance Region

AU - (CLAS Collaboration)

AU - Gothe, R. W.

AU - Mokeev, V. I.

AU - Hollis, G.

AU - Amaryan, M. J.

AU - Armstrong, W. R.

AU - Atac, H.

AU - Avakian, H.

AU - Barion, L.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Benkel, B.

AU - Benmokhtar, F.

AU - Bianconi, A.

AU - Biondo, L.

AU - Biselli, A.

AU - Bossù, F.

AU - Boiarinov, S.

AU - Bondì, M.

AU - Brinkmann, K. T.

AU - Briscoe, W. J.

AU - Bueltmann, S.

AU - Bulumulla, D.

AU - Burkert, V. D.

AU - Capobianco, R.

AU - Carman, D. S.

AU - Carvajal, J. C.

AU - Celentano, A.

AU - Chesnokov, V.

AU - Chetry, T.

AU - Ciullo, G.

AU - Clash, G.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Costantini, G.

AU - D'Angelo, A.

AU - Dashyan, N.

AU - Vita, R. De

AU - Defurne, M.

AU - Deur, A.

AU - Diehl, S.

AU - Djalali, C.

AU - Dupre, R.

AU - Egiyan, H.

AU - Alaoui, A. El

AU - Fassi, L. El

AU - Elouadrhiri, L.

AU - Fegan, S.

AU - Nicol, M.

AU - Watts, D. P.

AU - Zachariou, N.

N1 - The author list has been updated

PY - 2022/3/31

Y1 - 2022/3/31

N2 - New results for the exclusive and quasi-free cross sections off neutrons bound in deuterium ${\gamma}_vn(p) \rightarrow p{\pi}^{-} (p)$ are presented over a wide final state hadron angle range with a kinematic coverage of the invariant mass ($W$) up to 1.825 GeV and the virtual photon four-momentum transfer squared ($Q^{2}$) from 0.4 to 1.0 GeV$^2$. The exclusive structure functions have been extracted and their Legendre moments were obtained. Final-state-interaction contributions have been kinematically separated from the extracted quasi-free cross sections off bound neutrons solely based on the analysis of the experimental data. These new results will serve as long-awaited input for phenomenological analyses to extract the $Q^{2}$ evolution of previously unavailable $n \to N^{*}$ electroexcitation amplitudes and to improve state-of-the-art models of neutrino scattering off nuclei by augmenting the already available results from free protons.

AB - New results for the exclusive and quasi-free cross sections off neutrons bound in deuterium ${\gamma}_vn(p) \rightarrow p{\pi}^{-} (p)$ are presented over a wide final state hadron angle range with a kinematic coverage of the invariant mass ($W$) up to 1.825 GeV and the virtual photon four-momentum transfer squared ($Q^{2}$) from 0.4 to 1.0 GeV$^2$. The exclusive structure functions have been extracted and their Legendre moments were obtained. Final-state-interaction contributions have been kinematically separated from the extracted quasi-free cross sections off bound neutrons solely based on the analysis of the experimental data. These new results will serve as long-awaited input for phenomenological analyses to extract the $Q^{2}$ evolution of previously unavailable $n \to N^{*}$ electroexcitation amplitudes and to improve state-of-the-art models of neutrino scattering off nuclei by augmenting the already available results from free protons.

KW - nucl-ex

M3 - Preprint

BT - Exclusive $π^{-}$ Electroproduction off the Neutron in Deuterium in the Resonance Region

PB - arXiv

ER -