A search for excited states of the standard model fermions was performed using the ZEUS detector at the HERA electron-proton collider, operating at a centre of mass energy of 296 GeV. In a sample corresponding to an integrated luminosity of 0.55 pb(-1), no evidence was found for any resonant state decaying into final states composed of a fermion and a gauge boson. Limits on the coupling strength times branching ratio of excited fermions are presented for masses between 50 GeV and 250 GeV, extending previous search regions significantly.

Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Schlereth, J., et al. (1995). A SEARCH FOR EXCITED FERMIONS IN ELECTRON-PROTON COLLISIONS AT HERA RID B-9165-2008 RID C-5889-2009 RID A-4818-2008 RID C-1693-2008. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 65(4), 627-647.

A SEARCH FOR EXCITED FERMIONS IN ELECTRON-PROTON COLLISIONS AT HERA RID B-9165-2008 RID C-5889-2009 RID A-4818-2008 RID C-1693-2008

MARI, Stefano Maria;
1995-01-01

Abstract

A search for excited states of the standard model fermions was performed using the ZEUS detector at the HERA electron-proton collider, operating at a centre of mass energy of 296 GeV. In a sample corresponding to an integrated luminosity of 0.55 pb(-1), no evidence was found for any resonant state decaying into final states composed of a fermion and a gauge boson. Limits on the coupling strength times branching ratio of excited fermions are presented for masses between 50 GeV and 250 GeV, extending previous search regions significantly.
1995
Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Schlereth, J., et al. (1995). A SEARCH FOR EXCITED FERMIONS IN ELECTRON-PROTON COLLISIONS AT HERA RID B-9165-2008 RID C-5889-2009 RID A-4818-2008 RID C-1693-2008. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 65(4), 627-647.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/134237
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