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arXiv · 1610.02350

First measurement of unpolarized SIDIS cross section and cross section ratios from a $^3$He target

X. Yan·K. Allada·K. Aniol·J. R. M. Annand·T. Averett·F. Benmokhtar·W. Bertozzi·P. C. Bradshaw·P. Bosted·A. Camsonne·M. Canan·G. D. Cates·C. Chen·J. -P. Chen·W. Chen·K. Chirapatpimol·E. Chudakov·E. Cisbani·J. C. Cornejo·F. Cusanno·M. M. Dalton·W. Deconinck·C. W. de Jager·R. De Leo·X. Deng·A. Deur·H. Ding·P. A. M. Dolph·C. Dutta·D. Dutta·L. El Fassi·S. Frullani·H. Gao·F. Garibaldi·D. Gaskell·S. Gilad·R. Gilman·O. Glamazdin·S. Golge·L. Guo·D. Hamilton·O. Hansen·D. W. Higinbotham·T. Holmstrom·J. Huang·M. Huang·H. F Ibrahim·M. Iodice·X. Jiang·G. Jin·M. K. Jones·J. Katich·A. Kelleher·W. Kim·A. Kolarkar·W. Korsch·J. J. LeRose·X. Li·Y. Li·R. Lindgren·T. Liu·N. Liyanage·E. Long·H. -J. Lu·D. J. Margaziotis·P. Markowitz·S. Marrone·D. McNulty·Z. -E. Meziani·R. Michaels·B. Moffit·C. Munoz Camacho·S. Nanda·A. Narayan·V. Nelyubin·B. Norum·Y. Oh·M. Osipenko·D. Parno·J. -C. Peng·S. K. Phillips·M. Posik·A. J. R. Puckett·X. Qian·Y. Qiang·A. Rakhman·R. Ransome·S. Riordan·A. Saha·B. Sawatzky·E. Schulte·A. Shahinyan·M. H. Shabestari·S. Sirca·S. Stepanyan·R. Subedi·V. Sulkosky·L. -G. Tang·W. A. Tobias·G. M. Urciuoli
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Abstract

The unpolarized semi-inclusive deep-inelastic scattering (SIDIS) differential cross sections in $^3$He($e,e^{\prime}\pi^{\pm}$)$X$ have been measured for the first time in Jefferson Lab experiment E06-010 performed with a $5.9\,$GeV $e^-$ beam on a $^3$He target. The experiment focuses on the valence quark region, covering a kinematic range $0.12 < x_{bj} < 0.45$, $1 < Q^2 < 4 \, \textrm{(GeV/c)}^2$, $0.45 < z_{h} < 0.65$, and $0.05 < P_t < 0.55 \, \textrm{GeV/c}$. The extracted SIDIS differential cross sections of $\pi^{\pm}$ production are compared with existing phenomenological models while the $^3$He nucleus approximated as two protons and one neutron in a plane wave picture, in multi-dimensional bins. Within the experimental uncertainties, the azimuthal modulations of the cross sections are found to be consistent with zero.

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X. Yan, K. Allada, K. Aniol, J. R. M. Annand, T. Averett, F. Benmokhtar, W. Bertozzi, P. C. Bradshaw, P. Bosted, A. Camsonne, M. Canan, G. D. Cates, C. Chen, J. -P. Chen, W. Chen, K. Chirapatpimol, E. Chudakov, E. Cisbani, J. C. Cornejo, F. Cusanno, M. M. Dalton, W. Deconinck, C. W. de Jager, R. De Leo, X. Deng, A. Deur, H. Ding, P. A. M. Dolph, C. Dutta, D. Dutta, L. El Fassi, S. Frullani, H. Gao, F. Garibaldi, D. Gaskell, S. Gilad, R. Gilman, O. Glamazdin, S. Golge, L. Guo, D. Hamilton, O. Hansen, D. W. Higinbotham, T. Holmstrom, J. Huang, M. Huang, H. F Ibrahim, M. Iodice, X. Jiang, G. Jin, M. K. Jones, J. Katich, A. Kelleher, W. Kim, A. Kolarkar, W. Korsch, J. J. LeRose, X. Li, Y. Li, R. Lindgren, T. Liu, N. Liyanage, E. Long, H. -J. Lu, D. J. Margaziotis, P. Markowitz, S. Marrone, D. McNulty, Z. -E. Meziani, R. Michaels, B. Moffit, C. Munoz Camacho, S. Nanda, A. Narayan, V. Nelyubin, B. Norum, Y. Oh, M. Osipenko, D. Parno, J. -C. Peng, S. K. Phillips, M. Posik, A. J. R. Puckett, X. Qian, Y. Qiang, A. Rakhman, R. Ransome, S. Riordan, A. Saha, B. Sawatzky, E. Schulte, A. Shahinyan, M. H. Shabestari, S. Sirca, S. Stepanyan, R. Subedi, V. Sulkosky, L. -G. Tang, W. A. Tobias, G. M. Urciuoli. 2016-10-07. First measurement of unpolarized SIDIS cross section and cross section ratios from a $^3$He target. https://doi.org/10.1103/physrevc.95.035209

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