Neveu–Schwarz–Neveu–Schwarz sector
= Neveu–Schwarz–Neveu–Schwarz sector
{c}
{title2=$8_v\otimes8_v=35_v\oplus28\oplus1$}
= NS-NS sector
{c}
{synonym}
The closed-string sector with <NS sector> excitations on both chiral sides. Its massless transverse tensor product is $8_v\otimes8_v=35_v+28+1$, giving the <graviton>, <Kalb–Ramond field> and <dilaton>. These fields are common to the type II theories.