The relative modification of the prompt
ψ
ð
2
S
Þ
and
J=
ψ
yields from
pp
to PbPb collisions, at the center-
of-mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on
pp
and PbPb data
samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of
28
.
0
pb
−
1
and
464
μ
b
−
1
, respectively. The double ratio of measured yields of prompt charmonia
reconstructed through their decays into muon pairs,
ð
N
ψ
ð
2
S
Þ
=N
J=
ψ
Þ
PbPb
=
ð
N
ψ
ð
2
S
Þ
=N
J=
ψ
Þ
pp
, is determined
as a function of PbPb collision centrality and charmonium transverse momentum
p
T
, in two kinematic
intervals:
j
y
j
<
1
.
6
covering
6
.
5
<p
T
<
30
GeV
=c
and
1
.
6
<
j
y
j
<
2
.
4
covering
3
<p
T
<
30
GeV
=c
.
The centrality-integrated double ratios are
0
.
36

0
.
08
ð
stat
Þ
0
.
05
ð
syst
Þ
in the first interval and
0
.
24

0
.
22
ð
stat
Þ
0
.
09
ð
syst
Þ
in the second. The double ratio is lower than unity in all the measured bins,
suggesting that the
ψ
ð
2
S
Þ
yield is more suppressed than the
J=
ψ
yield in the explored phase space.