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Two-Point Superstring Tree Amplitudes Using the Pure Spinor Formalism
by Sitender Pratap Kashyap
Submission summary
| Authors (as registered SciPost users): | Sitender Kashyap |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202411_00006v1 (pdf) |
| Date accepted: | 2024-11-26 |
| Date submitted: | 2024-11-04 13:40 |
| Submitted by: | Kashyap, Sitender |
| Submitted to: | SciPost Physics Core |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
We provide a prescription for computing two-point tree-level amplitudes in the pure spinor formalism that provides finite results that agree with the corresponding expression in the field theories. In [arXiv:1906.06051v1-arXiv:1909.03672v3], the same result was discovered in the bosonic strings with indications of generalization to superstrings in the Ramond-Neveu-Schwarz formalism. Pure spinor formalism is the unique super-Poincare covariant approach to quantizing superstrings [arXiv:hep-th/0001035v2]. Since the pure spinor formalism is equivalent to other superstring formalisms, it verifies the above claim. We introduce a mostly BRST exact operator to achieve this.
Author comments upon resubmission
List of changes
General comments:
1. New equations in the main text are unnamed if added. This keeps the equations the same as in the older version.
2. There was a thorough check of grammar and many sentences have been modified in this light.
3. A new appendix E called "Requirement of a non-zero two-point string amplitude" in response to the query by referee 1.
Apart from this, here is a list of changes in the order of increasing page numbers.
1. Shortened the abstract.
2. More details about the gauge fixing were added: unnamed equation above before equation 1 is added.
3. Below equation 3, an equation describing pure spinor constraint was given as requested by referee 1.
4. Between equations 6 and 7, we described the epsilon symbol and the contour prescription.
5. Rewrote equation 12, so that the notation z_{12} is avoided.
6. In the conclusion section, we added a reference the new appendix E.
Current status:
Editorial decision:
For Journal SciPost Physics Core: Publish
(status: Editorial decision fixed and (if required) accepted by authors)
Reports on this Submission
Report
I have reviewed the revised manuscript and confirm that the authors have adequately addressed the comments from the previous review. The revisions improve the clarity and quality of the work, and I have no further concerns. I recommend the paper for publication.
Recommendation
Publish (meets expectations and criteria for this Journal)
Report
In the revised resubmission, the author has addressed all the issues and queries raised in my previous report. I therefore recommend the manuscript for publication in SciPost Physics Core.
Recommendation
Publish (meets expectations and criteria for this Journal)