Double-pion electroproduction off protons in deuterium: Quasifree cross sections and final-state interactions

CLAS Collaboration

doi:10.1103/PhysRevC.109.065205

Double-pion electroproduction off protons in deuterium: Quasifree cross sections and final-state interactions

CLAS Collaboration

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1 Scopus citations

Abstract

The single-differential and fully integrated cross sections for quasifree π+π- electroproduction off protons bound in deuterium have been extracted for the first time. The experimental data were collected at Jefferson Laboratory with the CLAS detector. The measurements were performed in the kinematic region of the invariant mass W from 1.3 to 1.825 GeV and the photon virtuality Q2 from 0.4 to 1.0 GeV2. Sufficient experimental statistics allowed for narrow binning in all kinematic variables, while maintaining a small statistical uncertainty. The extracted cross sections were compared with the corresponding cross sections off free protons, which allowed us to obtain an estimate of the contribution from events in which interactions between the final-state hadrons and the spectator neutron took place.

Original language	English
Article number	065205
Journal	Physical Review C
Volume	109
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.109.065205
State	Published - Jun 2024
Externally published	Yes

Funding

The authors thank the technical staff at Jefferson Lab and at all the participating institutions for their invaluable contributions to the success of the experiment. This work was supported in part by the National Science Foundation (NSF) under Grant No. PHY 10011349, Jefferson Science Associates (JSA), the U.S. Department of Energy (DOE) under Contract No. DE-AC05-06OR23177, University of South Carolina (USC), the Skobeltsyn Institute of Nuclear Physics (SINP), the Physics Department at Lomonosov Moscow State University (MSU), Ohio University (OU), the Chilean Agencia Nacional de Investigacion y Desarrollo (ANID), the Italian Istituto Nazionale di Fisica Nucleare (INFN), the French Centre National de la Recherche Scientifique (CNRS), the French Commissariat l'Energie Atomique (CEA), the Scottish Universities Physics Alliance (SUPA), the National Research Foundation of Korea (NRF), and the UK Science and Technology Facilities Council (STFC). The authors thank the technical staff at Jefferson Lab and at all the participating institutions for their invaluable contributions to the success of the experiment. This work was supported in part by the National Science Foundation (NSF) under Grant No. PHY 10011349, Jefferson Science Associates (JSA), the U.S. Department of Energy (DOE) under Contract No. DE-AC05-06OR23177, University of South Carolina (USC), the Skobeltsyn Institute of Nuclear Physics (SINP), the Physics Department at Lomonosov Moscow State University (MSU), Ohio University (OU), the Chilean Agencia Nacional de Investigacion y Desarrollo (ANID), the Italian Istituto Nazionale di Fisica Nucleare (INFN), the French Centre National de la Recherche Scientifique (CNRS), the French Commissariat á l'Energie Atomique (CEA), the Scottish Universities Physics Alliance (SUPA), the National Research Foundation of Korea (NRF), and the UK Science and Technology Facilities Council (STFC).

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10.1103/PhysRevC.109.065205

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@article{b7d7f5452f824468a236c6a6b5e2343d,

title = "Double-pion electroproduction off protons in deuterium: Quasifree cross sections and final-state interactions",

abstract = "The single-differential and fully integrated cross sections for quasifree π+π- electroproduction off protons bound in deuterium have been extracted for the first time. The experimental data were collected at Jefferson Laboratory with the CLAS detector. The measurements were performed in the kinematic region of the invariant mass W from 1.3 to 1.825 GeV and the photon virtuality Q2 from 0.4 to 1.0 GeV2. Sufficient experimental statistics allowed for narrow binning in all kinematic variables, while maintaining a small statistical uncertainty. The extracted cross sections were compared with the corresponding cross sections off free protons, which allowed us to obtain an estimate of the contribution from events in which interactions between the final-state hadrons and the spectator neutron took place.",

author = "\{CLAS Collaboration\} and Skorodumina, \{Iu A.\} and Fedotov, \{G. V.\} and Gothe, \{R. W.\} and P. Achenbach and Z. Akbar and Alvarado, \{J. S.\} and Amaryan, \{M. J.\} and Armstrong, \{Whitney R.\} and H. Atac and H. Avakian and \{Ayerbe Gayoso\}, C. and L. Baashen and Baltzell, \{N. A.\} and L. Barion and M. Battaglieri and B. Benkel and Fatiha Benmokhtar and A. Bianconi and Biselli, \{A. S.\} and S. Boiarinov and F. Boss{\`u} and Brinkmann, \{K. Th\} and Briscoe, \{W. J.\} and Brooks, \{W. K.\} and D. Bulumulla and Burkert, \{V. D.\} and R. Capobianco and Carman, \{D. S.\} and P. Chatagnon and T. Chetry and G. Ciullo and Cole, \{P. L.\} and M. Contalbrigo and G. Costantini and A. D'Angelo and N. Dashyan and \{De Vita\}, R. and A. Deur and S. Diehl and C. Djalali and R. Dupre and H. Egiyan and \{El Alaoui\}, A. and \{El Fassi\}, L. and P. Eugenio and A. Filippi and C. Fogler and G. Gavalian and Gilfoyle, \{G. P.\} and M. Yurov",

note = "Publisher Copyright: {\textcopyright} 2024 American Physical Society.",

year = "2024",

month = jun,

doi = "10.1103/PhysRevC.109.065205",

language = "English",

volume = "109",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Double-pion electroproduction off protons in deuterium

T2 - Quasifree cross sections and final-state interactions

AU - CLAS Collaboration

AU - Skorodumina, Iu A.

AU - Fedotov, G. V.

AU - Gothe, R. W.

AU - Achenbach, P.

AU - Akbar, Z.

AU - Alvarado, J. S.

AU - Amaryan, M. J.

AU - Armstrong, Whitney R.

AU - Atac, H.

AU - Avakian, H.

AU - Ayerbe Gayoso, C.

AU - Baashen, L.

AU - Baltzell, N. A.

AU - Barion, L.

AU - Battaglieri, M.

AU - Benkel, B.

AU - Benmokhtar, Fatiha

AU - Bianconi, A.

AU - Biselli, A. S.

AU - Boiarinov, S.

AU - Bossù, F.

AU - Brinkmann, K. Th

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Bulumulla, D.

AU - Burkert, V. D.

AU - Capobianco, R.

AU - Carman, D. S.

AU - Chatagnon, P.

AU - Chetry, T.

AU - Ciullo, G.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Costantini, G.

AU - D'Angelo, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - Deur, A.

AU - Diehl, S.

AU - Djalali, C.

AU - Dupre, R.

AU - Egiyan, H.

AU - El Alaoui, A.

AU - El Fassi, L.

AU - Eugenio, P.

AU - Filippi, A.

AU - Fogler, C.

AU - Gavalian, G.

AU - Gilfoyle, G. P.

AU - Yurov, M.

PY - 2024/6

Y1 - 2024/6

N2 - The single-differential and fully integrated cross sections for quasifree π+π- electroproduction off protons bound in deuterium have been extracted for the first time. The experimental data were collected at Jefferson Laboratory with the CLAS detector. The measurements were performed in the kinematic region of the invariant mass W from 1.3 to 1.825 GeV and the photon virtuality Q2 from 0.4 to 1.0 GeV2. Sufficient experimental statistics allowed for narrow binning in all kinematic variables, while maintaining a small statistical uncertainty. The extracted cross sections were compared with the corresponding cross sections off free protons, which allowed us to obtain an estimate of the contribution from events in which interactions between the final-state hadrons and the spectator neutron took place.

AB - The single-differential and fully integrated cross sections for quasifree π+π- electroproduction off protons bound in deuterium have been extracted for the first time. The experimental data were collected at Jefferson Laboratory with the CLAS detector. The measurements were performed in the kinematic region of the invariant mass W from 1.3 to 1.825 GeV and the photon virtuality Q2 from 0.4 to 1.0 GeV2. Sufficient experimental statistics allowed for narrow binning in all kinematic variables, while maintaining a small statistical uncertainty. The extracted cross sections were compared with the corresponding cross sections off free protons, which allowed us to obtain an estimate of the contribution from events in which interactions between the final-state hadrons and the spectator neutron took place.

UR - https://www.scopus.com/pages/publications/85196287189

U2 - 10.1103/PhysRevC.109.065205

DO - 10.1103/PhysRevC.109.065205

M3 - Article

AN - SCOPUS:85196287189

SN - 2469-9985

VL - 109

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 065205

ER -

Double-pion electroproduction off protons in deuterium: Quasifree cross sections and final-state interactions

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