Politzer, H. David and Wise, Mark B. (1988) Effective field theory approach to processes involving both light and heavy fields. Physics Letters B, 208 (3-4). pp. 504-507. ISSN 0370-2693. doi:10.1016/0370-2693(88)90656-9. https://resolver.caltech.edu/CaltechAUTHORS:20161018-092313204
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Abstract
The matrix elements of operators containing both heavy quark (Q) fields and light particle fields can contain logarithms of the type In(mQμ) if (in some frame) the heavy quark is approximately static (i.e., |pQ|⪡mQ) and the light particles' typical momentum is of order μ⪡mQ. By performing the functional integral over the heavy quark fields first and treating their mass as very large (so that the heavy quarks are essentially static color sources), the logarithms of (mQμ) are determined by the “infinite” parts of Feynman diagrams involving only the light fields. We show how to sum these logarithms using a renormalization group equation derived from a mass-independent subtraction scheme.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1988 Elsevier B.V. Received 2 May 1988. | |||||||||
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| Issue or Number: | 3-4 | |||||||||
| DOI: | 10.1016/0370-2693(88)90656-9 | |||||||||
| Record Number: | CaltechAUTHORS:20161018-092313204 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20161018-092313204 | |||||||||
| Official Citation: | H. David Politzer, Mark B. Wise, Effective field theory approach to processes involving both light and heavy fields, Physics Letters B, Volume 208, Issue 3, 1988, Pages 504-507, ISSN 0370-2693, http://dx.doi.org/10.1016/0370-2693(88)90656-9. (http://www.sciencedirect.com/science/article/pii/0370269388906569) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 71205 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Joy Painter | |||||||||
| Deposited On: | 18 Oct 2016 16:36 | |||||||||
| Last Modified: | 11 Nov 2021 04:41 |
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