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Title: Dependencies of lepton angular distribution coefficients on the transverse momentum and rapidity of Z bosons produced in pp collisions at the LHC

Journal Article · · Physical Review D
 [1];  [2];  [3];  [4]
  1. Academia Sinica, Taipei (Taiwan)
  2. Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  3. Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
  4. Bogoliubov Lab. of Theoretical Physics, Dubna (Russia)

Here, high precision data of lepton angular distributions for $$\gamma^*/Z$$ production in $pp$ collisions at the LHC, covering broad ranges of dilepton transverse momenta ($$q_T$$) and rapidity ($$y$$), were recently reported. Strong $$q_T$$ dependencies were observed for several angular distribution coefficients, $$A_i$$, including $$A_0 - A_4$$. Significant $$y$$ dependencies were also found for the coefficients $$A_1$$, $$A_3$$ and $$A_4$$, while $$A_0$$ and $$A_2$$ exhibit very weak rapidity dependence. Using an intuitive geometric picture we show that the $$q_T$$ and $$y$$ dependencies of the angular distributions coefficients can be well described.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-06OR23177
OSTI ID:
1404882
Report Number(s):
JLAB-PHY-17-2581; DOE/OR/23177-4244; arXiv:1708.05807; PRVDAQ; TRN: US1703248
Journal Information:
Physical Review D, Vol. 96, Issue 5; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

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Cited By (1)

Lepton angular distributions of fixed-target Drell-Yan experiments in perturbative QCD and a geometric approach journal January 2019