NSF PAR Search | NSF Public Access Repository

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

Final SeaQuest Results on the Flavor Asymmetry of the Proton Light-Quark Sea with Proton-Induced Drell-Yan Process

https://doi.org/10.1103/fdrg-gw3s

Leung, C H; Dove, J; Nagai, K; Nakano, K; Prasad, S; Tadepalli, A S; Aidala, C A; Arrington, J; Ayuso, C; Barker, C L; et al (April 2026, Physical Review Letters)

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 $σ_{p d} / 2 σ_{p p}$ Drell-Yan cross section ratio covering the kinematic region of $0.13 < x < 0.45$ . The $x$ dependencies of $\bar{d} (x) / \bar{u} (x)$ and $\bar{d} (x) - \bar{u} (x)$ are extracted from these cross section ratios. It is found that $\bar{d} (x)$ is greater than $\bar{u} (x)$ over the entire measured $x$ range, with improved statistical accuracy compared to previous measurements. The new results on $\bar{d} (x) / \bar{u} (x)$ and $\bar{d} (x) - \bar{u} (x)$ are compared to various parton distribution functions and theoretical calculations.
more » « less
Free, publicly-accessible full text available April 1, 2027
Instrumental uncertainties in radiative corrections for the MUSE experiment

https://doi.org/10.1140/epja/s10050-023-01215-0

Li, L.; Strauch, S.; Bernauer, J. C.; Briscoe, W. J.; Christopher Ndukwe, A.; Cline, E.; Cohen, D.; Deiters, K.; Downie, E. J.; Fernando, I. P.; et al (January 2024, The European Physical Journal A)

Full Text Available
Determining the gluonic gravitational form factors of the proton

https://doi.org/10.1038/s41586-023-05730-4

Duran, B.; Meziani, Z.-E.; Joosten, S.; Jones, M. K.; Prasad, S.; Peng, C.; Armstrong, W.; Atac, H.; Chudakov, E.; Bhatt, H.; et al (March 2023, Nature)

Full Text Available
Measurement of flavor asymmetry of the light-quark sea in the proton with Drell-Yan dimuon production in $p + p$ and $p + d$ collisions at 120 GeV

https://doi.org/10.1103/PhysRevC.108.035202

Dove, J.; Kerns, B.; Leung, C.; McClellan, R. E.; Miyasaka, S.; Morton, D. H.; Nagai, K.; Prasad, S.; Sanftl, F.; Scott, M. B.; et al (September 2023, Physical Review C)

Full Text Available
Characterization of muon and electron beams in the Paul Scherrer Institute PiM1 channel for the MUSE experiment

https://doi.org/10.1103/PhysRevC.105.055201

Cline, E.; Lin, W.; Roy, P.; Reimer, P. E.; Mesick, K. E.; Akmal, A.; Alie, A.; Atac, H.; Atencio, A.; Ayerbe Gayoso, C.; et al (May 2022, Physical Review C)

Full Text Available
Measurement of the EMC effect in light and heavy nuclei

https://doi.org/10.1103/PhysRevC.104.065203

Arrington, J.; Bane, J.; Daniel, A.; Fomin, N.; Gaskell, D.; Seely, J.; Asaturyan, R.; Benmokhtar, F.; Boeglin, W.; Bosted, P.; et al (December 2021, Physical review and Physical review letters index)

Full Text Available
Measurement of the EMC effect in light and heavy nuclei

https://doi.org/10.1103/PhysRevC.104.065203

Arrington, J.; Bane, J.; Daniel, A.; Fomin, N.; Gaskell, D.; Seely, J.; Asaturyan, R.; Benmokhtar, F.; Boeglin, W.; Bosted, P.; et al (December 2021, Physical Review C)

Full Text Available
Publisher Correction: The asymmetry of antimatter in the proton

https://doi.org/10.1038/s41586-022-04707-z

Dove, J.; Kerns, B.; McClellan, R. E.; Miyasaka, S.; Morton, D. H.; Nagai, K.; Prasad, S.; Sanftl, F.; Scott, M. B.; Tadepalli, A. S.; et al (April 2022, Nature)

Full Text Available
Proton spin structure and generalized polarizabilities in the strong quantum chromodynamics regime

https://doi.org/10.1038/s41567-022-01781-y

Ruth, D.; Zielinski, R.; Gu, C.; Allada, M.; Badman, T.; Huang, M.; Liu, J.; Zhu, P.; Allada, K.; Zhang, J.; et al (December 2022, Nature Physics)

Full Text Available
The asymmetry of antimatter in the proton

https://doi.org/10.1038/s41586-021-03282-z

Dove, J.; Kerns, B.; McClellan, R. E.; Miyasaka, S.; Morton, D. H.; Nagai, K.; Prasad, S.; Sanftl, F.; Scott, M. B.; Tadepalli, A. S.; et al (February 2021, Nature)
null (Ed.)
Full Text Available

« Prev Next »

Search for: All records