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Final SeaQuest results on the flavor asymmetry of the proton light-quark sea with proton-induced Drell-Yan process

Fuente: arXiv

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Autori principali:	SeaQuest Collaboration, Leung, C. H., Dove, J., Nagai, K., Nakano, K., Prasad, S., Tadepalli, A. S., Aidala, C. A., Arrington, J., Ayuso, C., Barker, C. L., Chang, W. C., Chen, A., Christian, D. C., Dannowitz, B. P., Fassi, L. El, Geesaman, D. F., Gilman, R., Goto, Y., Guo, R. S., Guo, L., Hague, T. J., Holt, R. J., Hossain, M. F., Isenhower, L. D., Kinney, E. R., Klein, A., Kleinjan, D., Lin, P. -J., Liu, K., Liu, M. X., Lorenzon, W., McClellan, R. E., McGaughey, P. L., Medeiros, M. M., Miyachi, Y., Miyasaka, S., Morton, D. H., Nakahara, K., Peng, J. C., Puckett, A. J. R., Pun, A., Ramson, B. J., Reimer, P. E., Rubin, J. G., Sanftl, F., Sawada, S., Sawada, T., Scott, M. B. C., Shibata, T. -A., Su, D. -S., Teo, M., Towell, R., Uemura, S., Wang, S. G., Wu, J., Wuerfel, N., Ye, Z. H.
Natura:	Preprint
Pubblicazione:	2025
Soggetti:	High Energy Physics - Experiment Nuclear Experiment
Accesso online:	Acceder al recurso
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_version_	1866909982539120640
author	SeaQuest Collaboration Leung, C. H. Dove, J. Nagai, K. Nakano, K. Prasad, S. Tadepalli, A. S. Aidala, C. A. Arrington, J. Ayuso, C. Barker, C. L. Chang, W. C. Chen, A. Christian, D. C. Dannowitz, B. P. Fassi, L. El Geesaman, D. F. Gilman, R. Goto, Y. Guo, R. S. Guo, L. Hague, T. J. Holt, R. J. Hossain, M. F. Isenhower, L. D. Kinney, E. R. Klein, A. Kleinjan, D. Lin, P. -J. Liu, K. Liu, M. X. Lorenzon, W. McClellan, R. E. McGaughey, P. L. Medeiros, M. M. Miyachi, Y. Miyasaka, S. Morton, D. H. Nakahara, K. Peng, J. C. Puckett, A. J. R. Pun, A. Ramson, B. J. Reimer, P. E. Rubin, J. G. Sanftl, F. Sawada, S. Sawada, T. Scott, M. B. C. Shibata, T. -A. Su, D. -S. Teo, M. Towell, R. Uemura, S. Wang, S. G. Wu, J. Wuerfel, N. Ye, Z. H.
author_facet	SeaQuest Collaboration Leung, C. H. Dove, J. Nagai, K. Nakano, K. Prasad, S. Tadepalli, A. S. Aidala, C. A. Arrington, J. Ayuso, C. Barker, C. L. Chang, W. C. Chen, A. Christian, D. C. Dannowitz, B. P. Fassi, L. El Geesaman, D. F. Gilman, R. Goto, Y. Guo, R. S. Guo, L. Hague, T. J. Holt, R. J. Hossain, M. F. Isenhower, L. D. Kinney, E. R. Klein, A. Kleinjan, D. Lin, P. -J. Liu, K. Liu, M. X. Lorenzon, W. McClellan, R. E. McGaughey, P. L. Medeiros, M. M. Miyachi, Y. Miyasaka, S. Morton, D. H. Nakahara, K. Peng, J. C. Puckett, A. J. R. Pun, A. Ramson, B. J. Reimer, P. E. Rubin, J. G. Sanftl, F. Sawada, S. Sawada, T. Scott, M. B. C. Shibata, T. -A. Su, D. -S. Teo, M. Towell, R. Uemura, S. Wang, S. G. Wu, J. Wuerfel, N. Ye, Z. H.
contents	The Fermilab E906/SeaQuest collaboration performed measurements of the Drell-Yan process using 120 GeV proton beams bombarding liquid hydrogen and liquid deuterium targets. A combined analysis of all collected data was performed to obtain the final results for the $σ_{pd}/2σ_{pp}$ Drell-Yan cross section ratio covering the kinematic region of $0.13 < x < 0.45$. The $x$-dependencies of $\bar{d}\left(x\right) / \bar{u}\left(x\right)$ and $\bar{d}\left(x\right) - \bar{u}\left(x\right)$ are extracted from these cross section ratios. It is found that $\bar{d}\left(x\right)$ is greater than $\bar{u}\left(x\right)$ over the entire measured $x$ range, with improved statistical accuracy compared to previous measurements. The new results on $\bar{d}\left(x\right) / \bar{u}\left(x\right)$ and $\bar{d}\left(x\right) - \bar{u}\left(x\right)$ are compared to various parton distribution functions and theoretical calculations.
format	Preprint
id	arxiv_https___arxiv_org_abs_2512_17564
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Final SeaQuest results on the flavor asymmetry of the proton light-quark sea with proton-induced Drell-Yan process SeaQuest Collaboration Leung, C. H. Dove, J. Nagai, K. Nakano, K. Prasad, S. Tadepalli, A. S. Aidala, C. A. Arrington, J. Ayuso, C. Barker, C. L. Chang, W. C. Chen, A. Christian, D. C. Dannowitz, B. P. Fassi, L. El Geesaman, D. F. Gilman, R. Goto, Y. Guo, R. S. Guo, L. Hague, T. J. Holt, R. J. Hossain, M. F. Isenhower, L. D. Kinney, E. R. Klein, A. Kleinjan, D. Lin, P. -J. Liu, K. Liu, M. X. Lorenzon, W. McClellan, R. E. McGaughey, P. L. Medeiros, M. M. Miyachi, Y. Miyasaka, S. Morton, D. H. Nakahara, K. Peng, J. C. Puckett, A. J. R. Pun, A. Ramson, B. J. Reimer, P. E. Rubin, J. G. Sanftl, F. Sawada, S. Sawada, T. Scott, M. B. C. Shibata, T. -A. Su, D. -S. Teo, M. Towell, R. Uemura, S. Wang, S. G. Wu, J. Wuerfel, N. Ye, Z. H. High Energy Physics - Experiment Nuclear Experiment The Fermilab E906/SeaQuest collaboration performed measurements of the Drell-Yan process using 120 GeV proton beams bombarding liquid hydrogen and liquid deuterium targets. A combined analysis of all collected data was performed to obtain the final results for the $σ_{pd}/2σ_{pp}$ Drell-Yan cross section ratio covering the kinematic region of $0.13 < x < 0.45$. The $x$-dependencies of $\bar{d}\left(x\right) / \bar{u}\left(x\right)$ and $\bar{d}\left(x\right) - \bar{u}\left(x\right)$ are extracted from these cross section ratios. It is found that $\bar{d}\left(x\right)$ is greater than $\bar{u}\left(x\right)$ over the entire measured $x$ range, with improved statistical accuracy compared to previous measurements. The new results on $\bar{d}\left(x\right) / \bar{u}\left(x\right)$ and $\bar{d}\left(x\right) - \bar{u}\left(x\right)$ are compared to various parton distribution functions and theoretical calculations.
title	Final SeaQuest results on the flavor asymmetry of the proton light-quark sea with proton-induced Drell-Yan process
topic	High Energy Physics - Experiment Nuclear Experiment
url	https://arxiv.org/abs/2512.17564