Zeros of amplitude in the associated production of photon and leptoquark at $$\varvec{e}$$-$$\varvec{p}$$ collider
| Autor: | Saunak Dutta, Priyotosh Bandyopadhyay, Anirban Karan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Particle physics Photon Physics and Astronomy (miscellaneous) 010308 nuclear & particles physics High Energy Physics::Phenomenology Zero (complex analysis) QC770-798 HERA Astrophysics 01 natural sciences law.invention Standard Model QB460-466 Amplitude Gauge group law Nuclear and particle physics. Atomic energy. Radioactivity 0103 physical sciences High Energy Physics::Experiment Leptoquark 010306 general physics Collider Engineering (miscellaneous) |
| Zdroj: | European Physical Journal European Physical Journal C: Particles and Fields, Vol 81, Iss 4, Pp 1-26 (2021) |
| ISSN: | 1434-6052 1434-6044 |
| DOI: | 10.1140/epjc/s10052-021-09090-z |
| Popis: | Though various extensions of the Standard Model with higher gauge group predict the existence of leptoquarks, none of them has been observed yet at any of the colliders. In this paper, we study the prospect of several past and future $$e$$ e -$$p$$ p colliders like HERA, LHeC and FCC-he to detect them through radiation amplitude zero. We find that the leptoquarks showing zeros in the tree-level single-photon amplitudes at $$e$$ e -$$p$$ p collider lie within the complementary set of those exhibiting zeros at e-$$\gamma $$ γ collider. We present a PYTHIA-based analysis for HERA, LHeC and FCC-he (run II) to detect the leptoquarks with masses 70 GeV, 900 GeV and 1.5 TeV (2.0 TeV) respectively through radiation amplitude zero. |
| Databáze: | OpenAIRE |
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