Measurement of Inclusive Charged-Current $\bar{\nu}_{\mu}$ Scattering on C, CH, Fe, and Pb at $\langle E_{\bar{\nu}}\rangle \sim$ 6 GeV with MINERvA

A. Klustová; S. Akhter; Z. Ahmad Dar; M. Sajjad Athar; G. Caceres; H. da Motta; J. Felix; P. K. Gaur; R. Gran; E. Granados; D. A. Harris; A. L. Hart; J. Kleykamp; M. Kordosky; D. Last; A. Lozano; S. Manly; W. A. Mann; K. S. McFarland; M. Mehmood; O. Moreno; J. G. Morfín; V. Paolone; G. N. Perdue; C. Pernas; M. A. Ramírez; N. Roy; D. Ruterbories; H. Schellman; C. J. Solano Salinas; D. S. Correia; A. Srivastava; V. S. Syrotenko; N. H. Vaughan; A. V. Waldron; M. O. Wascko; B. Yaeggy; L. Zazueta

arXiv · 2604.07091

Measurement of Inclusive Charged-Current $\bar{\nu}_{\mu}$ Scattering on C, CH, Fe, and Pb at $\langle E_{\bar{\nu}}\rangle \sim$ 6 GeV with MINERvA

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Abstract

We report MINERvA's first measurement of inclusive charged-current $\bar{\nu}_\mu$ cross sections on carbon, hydrocarbon, iron, and lead, and their ratios to the cross section on hydrocarbon, as functions of the antimuon transverse momentum, $p_{\mathrm{T}}$. Using a wide-band $\bar{\nu}_\mu$ beam with mean energy $\sim 6~\text{GeV}$, these measurements probe all interaction modes, including the transition from resonance production to deep-inelastic scattering. The total uncertainties are typically $5-10\%$ for the absolute cross sections and $2-5\%$ for the ratios. Comparisons with multiple neutrino interaction models reveal significant discrepancies in the $p_{\mathrm{T}}$ dependence, particularly for heavier nuclei. The disagreements are most pronounced at low $p_{\mathrm{T}}$ but extend across the full $p_{\mathrm{T}}$ range, indicating missing or mis-modelled nuclear effects.

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A. Klustová, S. Akhter, Z. Ahmad Dar, M. Sajjad Athar, G. Caceres, H. da Motta, J. Felix, P. K. Gaur, R. Gran, E. Granados, D. A. Harris, A. L. Hart, J. Kleykamp, M. Kordosky, D. Last, A. Lozano, S. Manly, W. A. Mann, K. S. McFarland, M. Mehmood, O. Moreno, J. G. Morfín, V. Paolone, G. N. Perdue, C. Pernas, M. A. Ramírez, N. Roy, D. Ruterbories, H. Schellman, C. J. Solano Salinas, D. S. Correia, A. Srivastava, V. S. Syrotenko, N. H. Vaughan, A. V. Waldron, M. O. Wascko, B. Yaeggy, L. Zazueta. 2026-04-08. Measurement of Inclusive Charged-Current $\bar{\nu}_{\mu}$ Scattering on C, CH, Fe, and Pb at $\langle E_{\bar{\nu}}\rangle \sim$ 6 GeV with MINERvA. https://arxiv.org/abs/2604.07091

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