Polarization Observables in WZ Production at the 13 TeV LHC: Inclusive Case

Julien Baglio, Duc Ninh Le

Abstract


We present a study of the polarization observables of the $W$ and $Z$ bosons in the process \(p p \to W^\pm Z\to e^\pm \nu_e \mu^+\mu^-\) at the 13 TeV Large Hadron Collider. The calculation is performed at next-to-leading order, including the full QCD corrections as well as the electroweak corrections, the latter being calculated in the double-pole approximation. The results are presented in the helicity coordinate system adopted by ATLAS and for different inclusive cuts on the di-muon invariant mass. We define left-right charge asymmetries related to the polarization fractions between the \(W^+ Z\) and \(W^- Z\) channels and we find that these asymmetries are large and sensitive to higher-order effects. Similar findings are also presented for charge asymmetries related to a P-even angular coefficient.

Keywords


diboson production, LHC, next-to-leading-order corrections, polarization, standard model

Full Text:

PDF

References


M. Aaboud et al., Eur. Phys. J. C79(2019) 535. [2] C. L. Bilchak, R. W. Brown and J. D. Stroughair, Phys. Rev. D29(1984) 375–386. [3] S. S. D. Willenbrock, Annals Phys. 186(1988) 15. [4] W. J. Stirling and E. Vryonidou, JHEP 07(2012) 124. [5] J. Baglio and L. D. Ninh, JHEP 04(2019) 065. [6] B. Biedermann, A. Denner and L. Hofer, JHEP 10(2017) 043. [7] A. Bierweiler, T. Kasprzik and J. H. K¨uhn, JHEP 12(2013) 071. [8] J. Baglio, L. D. Ninh and M. M. Weber, Phys. Rev. D88 (2013) 113005, [Erratum: Phys. Rev.D94,no.9,099902(2016)]. [9] J. Ohnemus, Phys. Rev. D44(1991) 3477–3489. [10] S. Frixione, P. Nason and G. Ridolfi, Nucl. Phys. B383(1992) 3–44. [11] M. Grazzini, S. Kallweit, D. Rathlev and M. Wiesemann, Phys. Lett. B761(2016) 179–183. [12] M. Grazzini, S. Kallweit, D. Rathlev and M. Wiesemann, JHEP 05(2017) 139. [13] J. C. Collins and D. E. Soper, Phys. Rev. D16(1977) 2219. [14] Z. Bern et al., Phys. Rev. D84(2011) 034008. [15] K. Arnold et al., Comput. Phys. Commun. 180(2009) 1661–1670.

J. Baglio et al., arXiv:1404.3940 (2014) . [17] M.Chaichian, M. HayashiandK.Yamagishi, Phys. Rev.D25(1982)130, [Erratum: Phys.Rev.D26,2534(1982)]. [18] E. Mirkes, Nucl. Phys. B387(1992) 3–85. [19] K. Hagiwara, K.-i. Hikasa and N. Kai, Phys. Rev. Lett. 52(1984) 1076. [20] R. Frederix, K. Hagiwara, T. Yamada and H. Yokoya, Phys. Rev. Lett. 113(2014) 152001. [21] J. A. Aguilar-Saavedra and J. Bernabeu, Phys. Rev. D93(2016) 011301. [22] J. A. Aguilar-Saavedra, J. Bernab´eu, V. A. Mitsou and A. Segarra, Eur. Phys. J. C77(2017) 234. [23] A. Manohar, P. Nason, G. P. Salam and G. Zanderighi, Phys. Rev. Lett. 117(2016) 242002. [24] A. V. Manohar, P. Nason, G. P. Salam and G. Zanderighi, JHEP 12(2017) 046. [25] J. Butterworth et al., J. Phys. G43(2016) 023001. [26] S. Dulat et al., Phys. Rev. D93(2016) 033006. [27] L. A. Harland-Lang, A. D. Martin, P. Motylinski and R. S. Thorne, Eur. Phys. J. C75(2015) 204. [28] R. D. Ball et al., JHEP 04(2015) 040. [29] J. Gao and P. Nadolsky, JHEP 07(2014) 035. [30] S. Carrazza, S. Forte, Z. Kassabov, J. I. Latorre and J. Rojo, Eur. Phys. J. C75(2015) 369. [31] G. Watt and R. S. Thorne, JHEP 08(2012) 052. [32] D. de Florian, G. F. R. Sborlini and G. Rodrigo, Eur. Phys. J. C76(2016) 282. [33] A. Buckley et al., Eur. Phys. J. C75(2015) 132. [34] M. Aaboud et al., Phys. Lett. B762(2016) 1–22. [35] K. Olive et al., Chin.Phys. C38(2014) 090001. [36] V. Khachatryan et al., Phys. Lett. B766(2017) 268–290.




DOI: https://doi.org/10.15625/0868-3166/30/1/14461 Display counter: Abstract : 241 views. PDF : 113 views.

Refbacks

  • There are currently no refbacks.




Editorial Office:

Communications in Physics

1st Floor, A16 Building, 18B Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam

Tel: (+84) 024 3791 7102 

Email: cip@vjs.ac.vn

Copyright by