Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing the isovector transition strength of the low-lying nuclear
  excitations induced by inverse kinematics proton scattering   A compact approach based on the folding model is suggested for the
determination of the isoscalar and isovector transition strengths of the
low-lying ($\Delta S=\Delta T=0$) excitations induced by inelastic proton
scattering measured with exotic beams. Our analysis of the recently measured
inelastic $^{18,20}$O+p scattering data at $E_{\rm lab}=30$ and 43 MeV/nucleon
has given for the first time an accurate estimate of the isoscalar $\beta_0$
and isovector $\beta_1$ deformation parameters (which cannot be determined from
the (p,p') data alone by standard methods) for 2$^+_1$ and $3^-_1$ excited
states in $^{18,20}$O. Quite strong isovector mixing was found in the 2$^+_1$
inelastic $^{20}$O+p scattering channel, where the strength of the isovector
form factor $F_1$ (prototype of the Lane potential) corresponds to a $\beta_1$
value almost 3 times larger than $\beta_0$ and a ratio of nuclear transition
matrix elements $M_n/M_p\simeq 4.2$.

28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas