On single and double soft behaviors in NLSM
(2015) In Journal of High Energy Physics- Abstract
- In this paper, we study the single and double soft behaviors of tree level off-shell currents and on-shell amplitudes in nonlinear sigma model (NLSM). We first propose and prove the leading soft behavior of the tree level currents with a single soft particle. In the on-shell limit, this single soft emission becomes the Adler's zero. Then we establish the leading and subleading soft behaviors of tree level currents with two adjacent soft particles. With a careful analysis of the on-shell limit, we obtain the double soft behaviors of on-shell amplitudes where the two soft particles are adjacent to each other. By applying Kleiss-Kuijf (KK) relation, we further obtain the leading and subleading behaviors of amplitudes with two nonadjacent soft... (More)
- In this paper, we study the single and double soft behaviors of tree level off-shell currents and on-shell amplitudes in nonlinear sigma model (NLSM). We first propose and prove the leading soft behavior of the tree level currents with a single soft particle. In the on-shell limit, this single soft emission becomes the Adler's zero. Then we establish the leading and subleading soft behaviors of tree level currents with two adjacent soft particles. With a careful analysis of the on-shell limit, we obtain the double soft behaviors of on-shell amplitudes where the two soft particles are adjacent to each other. By applying Kleiss-Kuijf (KK) relation, we further obtain the leading and subleading behaviors of amplitudes with two nonadjacent soft particles. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8407729
- author
- Du, Yijian LU and Luo, Hui
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Scattering Amplitudes, Global Symmetries
- in
- Journal of High Energy Physics
- issue
- 8
- article number
- 058
- publisher
- Springer
- external identifiers
-
- wos:000363519700005
- scopus:84939208091
- ISSN
- 1029-8479
- DOI
- 10.1007/JHEP08(2015)058
- language
- English
- LU publication?
- yes
- id
- 306d6549-115c-4446-be15-113d55221e73 (old id 8407729)
- date added to LUP
- 2016-04-01 10:30:09
- date last changed
- 2024-02-21 18:11:20
@article{306d6549-115c-4446-be15-113d55221e73, abstract = {{In this paper, we study the single and double soft behaviors of tree level off-shell currents and on-shell amplitudes in nonlinear sigma model (NLSM). We first propose and prove the leading soft behavior of the tree level currents with a single soft particle. In the on-shell limit, this single soft emission becomes the Adler's zero. Then we establish the leading and subleading soft behaviors of tree level currents with two adjacent soft particles. With a careful analysis of the on-shell limit, we obtain the double soft behaviors of on-shell amplitudes where the two soft particles are adjacent to each other. By applying Kleiss-Kuijf (KK) relation, we further obtain the leading and subleading behaviors of amplitudes with two nonadjacent soft particles.}}, author = {{Du, Yijian and Luo, Hui}}, issn = {{1029-8479}}, keywords = {{Scattering Amplitudes; Global Symmetries}}, language = {{eng}}, number = {{8}}, publisher = {{Springer}}, series = {{Journal of High Energy Physics}}, title = {{On single and double soft behaviors in NLSM}}, url = {{http://dx.doi.org/10.1007/JHEP08(2015)058}}, doi = {{10.1007/JHEP08(2015)058}}, year = {{2015}}, }