Evidence of Coherent K+ Meson Production in Neutrino-Nucleus Scattering

Z. Wang; C. M. Marshall; L. Aliaga; O. Altinok; L. Bellantoni; A. Bercellie; M. Betancourt; A. Bodek; A. Bravar; H. Budd; T. Cai; M. F. Carneiro; H. Da Motta; S. A. Dytman; G. A. Díaz; B. Eberly; E. Endress; J. Felix; L. Fields; R. Fine; R. Galindo; H. Gallagher; A. Ghosh; T. Golan; R. Gran; D. A. Harris; A. Higuera; K. Hurtado; M. Kiveni; J. Kleykamp; M. Kordosky; T. Le; E. Maher; S. Manly; W. A. Mann; D. A. Martinez Caicedo; K. S. McFarland; C. L. McGivern; A. M. McGowan; B. Messerly; J. Miller; A. Mislivec; J. G. Morfín; J. Mousseau; D. Naples; J. K. Nelson; A. Norrick; Nuruzzaman; V. Paolone; J. Park; (MINERvA Collaboration)

doi:10.1103/PhysRevLett.117.061802

Evidence of Coherent K+ Meson Production in Neutrino-Nucleus Scattering

Z. Wang, C. M. Marshall, L. Aliaga, O. Altinok, L. Bellantoni, A. Bercellie, M. Betancourt, A. Bodek, A. Bravar, H. Budd, T. Cai, M. F. Carneiro, H. Da Motta, S. A. Dytman, G. A. Díaz, B. Eberly, E. Endress, J. Felix, L. Fields, R. FineR. Galindo, H. Gallagher, A. Ghosh, T. Golan, R. Gran, D. A. Harris, A. Higuera, K. Hurtado, M. Kiveni, J. Kleykamp, M. Kordosky, T. Le, E. Maher, S. Manly, W. A. Mann, D. A. Martinez Caicedo, K. S. McFarland, C. L. McGivern, A. M. McGowan, B. Messerly, J. Miller, A. Mislivec, J. G. Morfín, J. Mousseau, D. Naples, J. K. Nelson, A. Norrick, Nuruzzaman, V. Paolone, J. Park, (MINERvA Collaboration)

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Abstract

Neutrino-induced charged-current coherent kaon production νμA→μ-K+A is a rare, inelastic electroweak process that brings a K+ on shell and leaves the target nucleus intact in its ground state. This process is significantly lower in rate than the neutrino-induced charged-current coherent pion production because of Cabibbo suppression and a kinematic suppression due to the larger kaon mass. We search for such events in the scintillator tracker of MINERvA by observing the final state K+, μ-, and no other detector activity, and by using the kinematics of the final state particles to reconstruct the small momentum transfer to the nucleus, which is a model-independent characteristic of coherent scattering. We find the first experimental evidence for the process at 3σ significance.

Original language	English (US)
Article number	061802
Journal	Physical review letters
Volume	117
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.117.061802
State	Published - Aug 5 2016

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© 2016 American Physical Society.

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Wang, Z., Marshall, C. M., Aliaga, L., Altinok, O., Bellantoni, L., Bercellie, A., Betancourt, M., Bodek, A., Bravar, A., Budd, H., Cai, T., Carneiro, M. F., Da Motta, H., Dytman, S. A., Díaz, G. A., Eberly, B., Endress, E., Felix, J., Fields, L., ... (MINERvA Collaboration) (2016). Evidence of Coherent K+ Meson Production in Neutrino-Nucleus Scattering. Physical review letters, 117(6), Article 061802. https://doi.org/10.1103/PhysRevLett.117.061802

Wang, Z, Marshall, CM, Aliaga, L, Altinok, O, Bellantoni, L, Bercellie, A, Betancourt, M, Bodek, A, Bravar, A, Budd, H, Cai, T, Carneiro, MF, Da Motta, H, Dytman, SA, Díaz, GA, Eberly, B, Endress, E, Felix, J, Fields, L, Fine, R, Galindo, R, Gallagher, H, Ghosh, A, Golan, T, Gran, R, Harris, DA, Higuera, A, Hurtado, K, Kiveni, M, Kleykamp, J, Kordosky, M, Le, T, Maher, E, Manly, S, Mann, WA, Martinez Caicedo, DA, McFarland, KS, McGivern, CL, McGowan, AM, Messerly, B, Miller, J, Mislivec, A, Morfín, JG, Mousseau, J, Naples, D, Nelson, JK, Norrick, A, Nuruzzaman, Paolone, V, Park, J & (MINERvA Collaboration) 2016, 'Evidence of Coherent K+ Meson Production in Neutrino-Nucleus Scattering', Physical review letters, vol. 117, no. 6, 061802. https://doi.org/10.1103/PhysRevLett.117.061802

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title = "Evidence of Coherent K+ Meson Production in Neutrino-Nucleus Scattering",

abstract = "Neutrino-induced charged-current coherent kaon production νμA→μ-K+A is a rare, inelastic electroweak process that brings a K+ on shell and leaves the target nucleus intact in its ground state. This process is significantly lower in rate than the neutrino-induced charged-current coherent pion production because of Cabibbo suppression and a kinematic suppression due to the larger kaon mass. We search for such events in the scintillator tracker of MINERvA by observing the final state K+, μ-, and no other detector activity, and by using the kinematics of the final state particles to reconstruct the small momentum transfer to the nucleus, which is a model-independent characteristic of coherent scattering. We find the first experimental evidence for the process at 3σ significance.",

author = "Z. Wang and Marshall, {C. M.} and L. Aliaga and O. Altinok and L. Bellantoni and A. Bercellie and M. Betancourt and A. Bodek and A. Bravar and H. Budd and T. Cai and Carneiro, {M. F.} and {Da Motta}, H. and Dytman, {S. A.} and D{\'i}az, {G. A.} and B. Eberly and E. Endress and J. Felix and L. Fields and R. Fine and R. Galindo and H. Gallagher and A. Ghosh and T. Golan and R. Gran and Harris, {D. A.} and A. Higuera and K. Hurtado and M. Kiveni and J. Kleykamp and M. Kordosky and T. Le and E. Maher and S. Manly and Mann, {W. A.} and {Martinez Caicedo}, {D. A.} and McFarland, {K. S.} and McGivern, {C. L.} and McGowan, {A. M.} and B. Messerly and J. Miller and A. Mislivec and Morf{\'i}n, {J. G.} and J. Mousseau and D. Naples and Nelson, {J. K.} and A. Norrick and Nuruzzaman and V. Paolone and J. Park and {(MINERvA Collaboration)}",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

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doi = "10.1103/PhysRevLett.117.061802",

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T1 - Evidence of Coherent K+ Meson Production in Neutrino-Nucleus Scattering

AU - Wang, Z.

AU - Marshall, C. M.

AU - Aliaga, L.

AU - Altinok, O.

AU - Bellantoni, L.

AU - Bercellie, A.

AU - Betancourt, M.

AU - Bodek, A.

AU - Bravar, A.

AU - Budd, H.

AU - Cai, T.

AU - Carneiro, M. F.

AU - Da Motta, H.

AU - Dytman, S. A.

AU - Díaz, G. A.

AU - Eberly, B.

AU - Endress, E.

AU - Felix, J.

AU - Fields, L.

AU - Fine, R.

AU - Galindo, R.

AU - Gallagher, H.

AU - Ghosh, A.

AU - Golan, T.

AU - Gran, R.

AU - Harris, D. A.

AU - Higuera, A.

AU - Hurtado, K.

AU - Kiveni, M.

AU - Kleykamp, J.

AU - Kordosky, M.

AU - Le, T.

AU - Maher, E.

AU - Manly, S.

AU - Mann, W. A.

AU - Martinez Caicedo, D. A.

AU - McFarland, K. S.

AU - McGivern, C. L.

AU - McGowan, A. M.

AU - Messerly, B.

AU - Miller, J.

AU - Mislivec, A.

AU - Morfín, J. G.

AU - Mousseau, J.

AU - Naples, D.

AU - Nelson, J. K.

AU - Norrick, A.

AU - Nuruzzaman,

AU - Paolone, V.

AU - Park, J.

AU - (MINERvA Collaboration)

PY - 2016/8/5

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N2 - Neutrino-induced charged-current coherent kaon production νμA→μ-K+A is a rare, inelastic electroweak process that brings a K+ on shell and leaves the target nucleus intact in its ground state. This process is significantly lower in rate than the neutrino-induced charged-current coherent pion production because of Cabibbo suppression and a kinematic suppression due to the larger kaon mass. We search for such events in the scintillator tracker of MINERvA by observing the final state K+, μ-, and no other detector activity, and by using the kinematics of the final state particles to reconstruct the small momentum transfer to the nucleus, which is a model-independent characteristic of coherent scattering. We find the first experimental evidence for the process at 3σ significance.

AB - Neutrino-induced charged-current coherent kaon production νμA→μ-K+A is a rare, inelastic electroweak process that brings a K+ on shell and leaves the target nucleus intact in its ground state. This process is significantly lower in rate than the neutrino-induced charged-current coherent pion production because of Cabibbo suppression and a kinematic suppression due to the larger kaon mass. We search for such events in the scintillator tracker of MINERvA by observing the final state K+, μ-, and no other detector activity, and by using the kinematics of the final state particles to reconstruct the small momentum transfer to the nucleus, which is a model-independent characteristic of coherent scattering. We find the first experimental evidence for the process at 3σ significance.

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JO - Physical review letters

JF - Physical review letters

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Evidence of Coherent K+ Meson Production in Neutrino-Nucleus Scattering

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