Testing the charge-radius coupling of composite Goldstone (Higgs) bosons at hadron colliders

Cacciapaglia, G. and Gascon-Shotkin, S. and Lesauvage, A. and Manglani, N. and Sridhar, K. (2022) Testing the charge-radius coupling of composite Goldstone (Higgs) bosons at hadron colliders. The European Physical Journal C, 82 (11). ISSN 1434-6052

Preview

Text - Published Version Download (729kB) | Preview

Abstract

We explore the collider relevance of a charge-radius coupling among light mesons in composite Higgs models. In particular, we focus of a coupling of the photon to the composite Higgs and a composite singlet, arising from isospin violation in the underlying theory. This coupling offers a deep probe of the composite nature of the Higgs mechanism, being sensitive to the electromagnetic and weak isospin structure of its constituents. The main collider effect consists in the production of the Higgs boson in association with a light composite pseudo-scalar. We present an exploratory cut-and-count analysis at hadron colliders, like the LHC, showing that an efficient background suppression can be achieved. More sophisticated techniques, however, are necessary to select a sufficient number of signal events, due to the small production rates. This justifies further investigation of this channel, which is highly complementary to other searches for compositeness in the Higgs sector.

Item Type:	Article
Authors:	Cacciapaglia, G. and Gascon-Shotkin, S. and Lesauvage, A. and Manglani, N. and Sridhar, K.
Document Language:	Language English
Subjects:	Natural Sciences Natural Sciences > Physics
Divisions:	Azim Premji University - Bengaluru > School of Arts and Sciences
Full Text Status:	Public
URI:	http://publications.azimpremjiuniversity.edu.in/id/eprint/7100
Publisher URL:	https://doi.org/10.1140/epjc%2Fs10052-022-11010-8

Actions (login required)

View Item