%0 Journal Article
%T Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in p-Pb Collisions
%A LHCb Collaboration (Aaij, R. et al
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%A Sanderswood, I.
%J Physical Review Letters
%D 2023
%V 131
%N 4
%I Amer Physical Soc
%@ 0031-9007
%G English
%F LHCbCollaborationAaij_etal2023
%O WOS:001063259300002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5818), last updated on Wed, 10 Apr 2024 12:48:58 +0000
%X The nuclear modification factor of neutral pions is measured in proton-lead collisions collected at a center-of-mass energy per nucleon of 8.16 TeV with the LHCb detector. The p(0) production cross section is measured differentially in transverse momentum (p(T)) for 1.5 < p(T) < 10.0 GeV and in center-of-mass pseudorapidity (?(c.m.)) regions 2.5 < ?(c.m.) < 3.5 (forward) and -4.0 < ?(c.m.) < -3.0 (backward) defined relative to the proton beam direction. The forward measurement shows a sizable suppression of p(0) production, while the backward measurement shows the first evidence of p(0) enhancement in proton-lead collisions at the LHC. Together, these measurements provide precise constraints on models of nuclear structure and particle production in high-energy nuclear collisions.
%R 10.1103/PhysRevLett.131.042302
%U https://arxiv.org/abs/2204.10608
%U https://doi.org/10.1103/PhysRevLett.131.042302
%P 042302-12pp