Counting states in heterotic SO(32) string theory | A First Course in String Theory
.
c) … Write out the massless states of the theory (bosons and fermions) and describe the fields associated with the bosons.
~~~
.
— This answer is my guess. —
.
spacetime bosons:
.
What is the nature of each of the indices ?
The vector index runs over eight values.
— c.f. p.323 A First Course in String Theory (Second Edition)
— c.f. the blog post Problem 14.5a3
— Me@2018-12-24 10:04:52 PM
.
For the states in the form
,
they
carry two independent vector indices
,
that run over eight values. There are therefore 64 bosonic states. Just like the massless states in bosonic closed string theory[,] they carry two vector indices. We therefore get a graviton, a Kalb-Ramond field, and a dilation:
(NS+, NS+) massless fields:
.
— p.323 A First Course in String Theory (Second Edition)
.
Then how about the states in the form
?
What kinds of fields do they represent?
— Me@2018-12-24 10:42:03 PM
.
— This answer is my guess. —
— Me@2018-12-23 11:16:56 PM
.
.
2018.12.24 Monday (c) All rights reserved by ACHK