Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s =200 GeV
In: Physical Review D, Jg. 103 (2021-05-01), Heft 9
Online
academicJournal
- l091103
We report high-precision measurements of the longitudinal double-spin asymmetry, ALL, for midrapidity inclusive jet and dijet production in polarized pp collisions at a center-of-mass energy of s=200 GeV. The new inclusive jet data are sensitive to the gluon helicity distribution, Δg(x,Q2), for gluon momentum fractions in the range from x≃0.05 to x≃0.5, while the new dijet data provide further constraints on the x dependence of Δg(x,Q2). The results are in good agreement with previous measurements at s=200 GeV and with recent theoretical evaluations of prior world data. Our new results have better precision and thus strengthen the evidence that Δg(x,Q2) is positive for x>0.05.
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Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s =200 GeV
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| Autor/in / Beteiligte Person: | Abdallah, MS ; Adam, J ; Adamczyk, L ; Adams, JR ; Adkins, JK ; Agakishiev, G ; Aggarwal, I ; Aggarwal, MM ; Ahammed, Z ; Alekseev, I ; Anderson, DM ; Aparin, A ; Aschenauer, EC ; Ashraf, MU ; Atetalla, FG ; Attri, A ; Averichev, GS ; Bairathi, V ; Baker, W ; Ball Cap, JG ; Barish, K ; Behera, A ; Bellwied, R ; Bhagat, P ; Bhasin, A ; Bielcik, J ; Bielcikova, J ; Bordyuzhin, IG ; Brandenburg, JD ; Brandin, AV ; Bunzarov, I ; Butterworth, J ; Cai, XZ ; Caines, H ; Calderón De La Barca Sánchez, M ; Cebra, D ; Chakaberia, I ; Chaloupka, P ; Chan, BK ; Chang, FH ; Chang, Z ; Chankova-Bunzarova, N ; Chatterjee, A ; Chattopadhyay, S ; Chen, D ; Chen, J ; Chen, JH ; Chen, X ; Chen, Z ; Cheng, J ; Chevalier, M ; Choudhury, S ; Christie, W ; Chu, X ; Crawford, HJ ; Csanád, M ; Daugherity, M ; Dedovich, TG ; Deppner, IM ; Derevschikov, AA ; Dhamija, A ; Di Carlo, L ; Didenko, L ; Dong, X ; Drachenberg, JL ; Dunlop, JC ; Elsey, N ; Engelage, J ; Eppley, G ; Esumi, S ; Evdokimov, O ; Ewigleben, A ; Eyser, O ; Fatemi, R ; Fawzi, FM ; Fazio, S ; Federic, P ; Fedorisin, J ; Feng, CJ ; Feng, Y ; Filip, P ; Finch, E ; Fisyak, Y ; Francisco, A ; Fu, C ; Fulek, L ; Gagliardi, CA ; Galatyuk, T ; Geurts, F ; Ghimire, N ; Gibson, A ; Gopal, K ; Gou, X ; Grosnick, D ; Gupta, A ; Guryn, W ; Hamad, AI ; Hamed, A ; Han, Y ; Harabasz, S |
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| Zeitschrift: | Physical Review D, Jg. 103 (2021-05-01), Heft 9 |
| Veröffentlichung: | eScholarship, University of California, 2021 |
| Medientyp: | academicJournal |
| Umfang: | l091103 |
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