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Diagnosing spin at the LHC via vector boson fusion

Buckley, Matthew R. and Ramsey-Musolf, Michael J. (2011) Diagnosing spin at the LHC via vector boson fusion. Journal of High Energy Physics, 2011 (9). Art. No. 094. ISSN 1126-6708. doi:10.1007/JHEP09(2011)094.

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We propose a new technique for determining the spin of new massive particles that might be discovered at the Large Hadron Collider. The method relies on pair-production of the new particles in a kinematic regime where the vector boson fusion production of color singlets is enhanced. For this regime, we show that the distribution of the leading jets as a function of their relative azimuthal angle can be used to distinguish spin-0 from spin-½ particles. We illustrate this effect by considering the particular cases of (i) strongly-interacting, stable particles and (ii) supersymmetric particles carrying color charge. We argue that this method should be applicable in a wide range of new physics scenarios.

Item Type:Article
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URLURL TypeDescription DOIArticle Paper
Ramsey-Musolf, Michael J.0000-0001-8110-2479
Additional Information:© 2011 Published for SISSA by Springer. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. Received: March 28, 2011; Revised: September 6, 2011; Accepted: September 8, 2011; Published: September 20, 2011. We would like to thank the Aspen Center for Physics where a substantial portion of this work was carried out. We also thank J. Alwall, T. Han, M. Herndon, B. Mellado, D. Morrissey, T. Plehn, W. Smith, M. Spiropulu, J. Thaler, and L.-T. Wang for helpful discussions and N. Christensen for assistance with the Calchep package. This work was supported in part under Department of Energy contracts DE-FG03-92-ER40701 (MRB) and DE-FG02- 08ER41531 (MJRM) and by the Wisconsin Alumni Research Foundation (MRJM).
Group:Caltech Theory
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG03-92-ER40701
Department of Energy (DOE)DE-FG02-08ER41531
Wisconsin Alumni Research FoundationUNSPECIFIED
Subject Keywords:Jets; Hadronic Colliders
Issue or Number:9
Record Number:CaltechAUTHORS:20111216-163100532
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Official Citation:Buckley, M.R. & Ramsey-Musolf, M.J. J. High Energ. Phys. (2011) 2011: 94. doi:10.1007/JHEP09(2011)094
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28504
Deposited By: Tony Diaz
Deposited On:19 Dec 2011 17:57
Last Modified:09 Nov 2021 16:57

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