Color-octet scalar decays to a gluon and an electroweak gauge boson in the Manohar-Wise model

Name: Color-octet scalar decays to a gluon and an electroweak gauge boson in the Manohar-Wise model
Author: Hayreter, Alper, Valencia, G.

İsim	Color-octet scalar decays to a gluon and an electroweak gauge boson in the Manohar-Wise model
Yazar	Hayreter, Alper, Valencia, G.
Basım Tarihi:	2020-12-28
Basım Yeri	- American Physical Society
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2470-0010
Kayıt Numarası	555c7d39-c2c1-44dc-9397-8db3c10e9278
Lokasyon	Natural and Mathematical Sciences
Tarih	2020-12-28
Örnek Metin	We present one loop results for the amplitudes giving rise to couplings between a color octet scalar, a gluon, and an electroweak gauge boson. These amplitudes could signal new physics in( )gamma jet, Z jet and W jet production at the LHC. We compute the relevant branching ratios and identify regions of parameter space where these decay modes become important. This can happen for scalar masses below the threshold for decay into heavy quark pairs ((tt) over bar and t (b) over bar) or for small Yukawa couplings in which case the colored scalars are fermiophobic. In the ease of light scalars, 8(S -> gamma g) can reach up to 10% whereas B(S -> Zg) can reach a few percent. In the fermiophobic region of parameter space, B(S -> gamma g) and B(S -> Zg) can reach up to 72% and 28% respectively, whereas B(S -> gg) can be 100%. For the charged scalar, the decay mode 8(S-+/- -> W(+/-)g) can become dominant in both scenarios.
DOI	10.1103/PhysRevD.102.115033
Cilt	102

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Color-octet scalar decays to a gluon and an electroweak gauge boson in the Manohar-Wise model

Yazar Hayreter, Alper, Valencia, G.

Basım Tarihi 2020-12-28

Basım Yeri - American Physical Society

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2470-0010

Kayıt Numarası 555c7d39-c2c1-44dc-9397-8db3c10e9278

Lokasyon Natural and Mathematical Sciences

Tarih 2020-12-28

Örnek Metin We present one loop results for the amplitudes giving rise to couplings between a color octet scalar, a gluon, and an electroweak gauge boson. These amplitudes could signal new physics in( )gamma jet, Z jet and W jet production at the LHC. We compute the relevant branching ratios and identify regions of parameter space where these decay modes become important. This can happen for scalar masses below the threshold for decay into heavy quark pairs ((tt) over bar and t (b) over bar) or for small Yukawa couplings in which case the colored scalars are fermiophobic. In the ease of light scalars, 8(S -> gamma g) can reach up to 10% whereas B(S -> Zg) can reach a few percent. In the fermiophobic region of parameter space, B(S -> gamma g) and B(S -> Zg) can reach up to 72% and 28% respectively, whereas B(S -> gg) can be 100%. For the charged scalar, the decay mode 8(S-+/- -> W(+/-)g) can become dominant in both scenarios.

DOI 10.1103/PhysRevD.102.115033

Cilt 102