First results on $A_1^p$ and $g_1^p$ at low x and low $Q^2$ from COMPASS

Nunes, Ana Sofia2019-02-042019-02-042014-07-07http://dx.doi.org/10.13140/RG.2.1.4950.7688, 10.22323/1.203.0221http://hdl.handle.net/10400.26/26723The COMPASS experiment at CERN has collected a large sample of about 700 million events of quasi-real photoproduction in polarised m + scattering using a beam momentum of 160 GeV/ c in 2007 and 200 GeV/ c in 2011. The events have a Bjorken scaling variable in the range 4 10...engFirst results on $A_1^p$ and $g_1^p$ at low x and low $Q^2$ from COMPASSjournal article2019-02-04