Dihadron azimuthal correlations in deep-inelastic scattering off nuclear targets

TY - JOUR

T1 - Dihadron azimuthal correlations in deep-inelastic scattering off nuclear targets

AU - CLAS Collaboration

AU - Morán, S.

AU - Arratia, M.

AU - Hakobyan, H.

AU - Alaoui, A. El

AU - Achenbach, P.

AU - Alvarado, J. S.

AU - Armstrong, W. R.

AU - Atac, H.

AU - Avakian, H.

AU - Baashen, L.

AU - Baltzell, N. A.

AU - Barion, L.

AU - Bashkanov, M.

AU - Battaglieri, M.

AU - Benkel, B.

AU - Benmokhtar, F.

AU - Bianconi, A.

AU - Biselli, A. S.

AU - Bondí, M.

AU - Booth, W. A.

AU - Bossù, F.

AU - Boiarinov, S.

AU - Brinkmann, K. Th

AU - Briscoe, W. J.

AU - Bueltmann, S.

AU - Burkert, V. D.

AU - Cao, T.

AU - Capobianco, R.

AU - Carman, D. S.

AU - Chatagnon, P.

AU - Ciullo, G.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - D'Angelo, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - Deur, A.

AU - Diehl, S.

AU - Dilks, C.

AU - Djalali, C.

AU - Dupre, R.

AU - Fassi, L. El

AU - Elouadrhiri, L.

AU - Eugenio, P.

AU - Filippi, A.

AU - Fogler, C.

AU - Gavalian, G.

AU - Gilfoyle, G. P.

AU - Watts, D. P.

AU - Zachariou, N.

N1 - Publisher Copyright: © 2025 American Physical Society.

PY - 2025/3/5

Y1 - 2025/3/5

N2 - We measured the nuclear dependence of the di-pion azimuthal correlation function in deep-inelastic scattering (DIS) using the CEBAF Large Acceptance Spectrometer and a 5 GeV electron beam. As the nuclear-target size increases, transitioning from deuterium to carbon, iron, and lead, the correlation function broadens monotonically. Its shape exhibits a significant dependence on kinematics, including the transverse momentum of the pions and the difference in their rapidity. None of the various Monte Carlo event generators we evaluated could fully replicate the observed correlation functions and nuclear effects throughout the entire phase space. As the first study of its kind in DIS experiments, this research provides an important baseline for enhancing our understanding of the interplay between the nuclear medium and the hadronization process in these reactions.

AB - We measured the nuclear dependence of the di-pion azimuthal correlation function in deep-inelastic scattering (DIS) using the CEBAF Large Acceptance Spectrometer and a 5 GeV electron beam. As the nuclear-target size increases, transitioning from deuterium to carbon, iron, and lead, the correlation function broadens monotonically. Its shape exhibits a significant dependence on kinematics, including the transverse momentum of the pions and the difference in their rapidity. None of the various Monte Carlo event generators we evaluated could fully replicate the observed correlation functions and nuclear effects throughout the entire phase space. As the first study of its kind in DIS experiments, this research provides an important baseline for enhancing our understanding of the interplay between the nuclear medium and the hadronization process in these reactions.

UR - http://www.scopus.com/inward/record.url?scp=86000339343&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.111.035201

DO - 10.1103/PhysRevC.111.035201

M3 - Article

AN - SCOPUS:86000339343

SN - 2469-9985

VL - 111

JO - Physical Review C

JF - Physical Review C

IS - 3

M1 - 035201

ER -