scholarly journals Colored scalar mediated nucleon decays to an invisible fermion

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Svjetlana Fajfer ◽  
David Susič
Keyword(s):  
Colored Scalar

scholarly journals Simplified DM models with the full SM gauge symmetry: the case of t-channel colored scalar mediators

2017 ◽  
Vol 2017 (1) ◽  
Author(s):  
P. Ko ◽  
Alexander Natale ◽  
Myeonghun Park ◽  
Hiroshi Yokoya
Keyword(s):  
Gauge Symmetry ◽  
Colored Scalar

scholarly journals COLORED SCALAR PARTICLES PRODUCTION IN pp-COLLISIONS AND POSSIBLE MASS LIMITS FOR SCALAR GLUONS FROM FUTURE LHC DATA

2008 ◽  
Vol 23 (34) ◽  
pp. 2907-2913 ◽  
Author(s):  
M. V. MARTYNOV ◽  
A. D. SMIRNOV
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Particle Production ◽  
Production Cross ◽  
Scalar Particle ◽  
Pp Collisions ◽  
Total Cross Sections ◽  
Scalar Particles ◽  
Gluon Production ◽  
Colored Scalar

Cross sections of the colored scalar particle production in pp-collisions are calculated and differential and total cross sections of the corresponding parton subprocesses are obtained. The total cross section of scalar gluon production in pp-collisions at the LHC is estimated and the dominant decays of scalar gluons are discussed. The production cross section of scalar gluons F with masses mF ≲ 1300 GeV is shown to be sufficient for the effective production of these particles at the LHC.

scholarly journals The structure of IR divergences in celestial gluon amplitudes

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Hernán A. González ◽  
Francisco Rojas
Keyword(s):  
Mellin Transform ◽  
Anomalous Dimension ◽  
Nearest Neighbor ◽  
Wilson Line ◽  
Coulomb Gas ◽  
Vertex Operators ◽  
Positive Quantity ◽  
Colored Scalar ◽  
Cusp Anomalous Dimension ◽  
Hard Function

Abstract The all-loop resummation of SU(N) gauge theory amplitudes is known to factorize into an IR-divergent (soft and collinear) factor and a finite (hard) piece. The divergent factor is universal, whereas the hard function is a process-dependent quantity.We prove that this factorization persists for the corresponding celestial amplitudes. Moreover, the soft/collinear factor becomes a scalar correlator of the product of renormalized Wilson lines defined in terms of celestial data. Their effect on the hard amplitude is a shift in the scaling dimensions by an infinite amount, proportional to the cusp anomalous dimension. This leads us to conclude that the celestial-IR-safe gluon amplitude corresponds to a expectation value of operators dressed with Wilson line primaries. These results hold for finite N.In the large N limit, we show that the soft/collinear correlator can be described in terms of vertex operators in a Coulomb gas of colored scalar primaries with nearest neighbor interactions. In the particular cases of four and five gluons in planar $$ \mathcal{N} $$ N = 4 SYM theory, where the hard factor is known to exponentiate, we establish that the Mellin transform converges in the UV thanks to the fact that the cusp anomalous dimension is a positive quantity. In other words, the very existence of the full celestial amplitude is owed to the positivity of the cusp anomalous dimension.

Colored scalar in a chromomagnetic field

Open Physics ◽  
2010 ◽  
Vol 8 (3) ◽  
Author(s):  
Shemsettin Turkoz ◽  
Shahin Mamedov ◽  
Abbas Ciftci
Keyword(s):  
Magnetic Field ◽  
Energy Spectrum ◽  
Unitary Transformation ◽  
Gordon Equation ◽  
Scalar Particles ◽  
Chromomagnetic Field ◽  
Klein Gordon ◽  
Colored Scalar ◽  
Constant Color ◽  
Klein Gordon Equation

AbstractThe motion of colored scalar particles in a constant color magnetic field is considered. The Klein-Gordon equation is solved in this background and the energy spectrum is quantized by boundary conditions. The unitary transformation diagonalizing this equation and the states with definite energy are found.

scholarly journals PROPERTIES OF SCALAR-QUARK SYSTEMS IN SU(3)c LATTICE QCD

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2344-2347 ◽  
Author(s):  
HIDEAKI IIDA ◽  
TORU T. TAKAHASHI ◽  
HIDEO SUGANUMA
Keyword(s):  
Lattice Qcd ◽  
Bound States ◽  
Large Mass ◽  
Quantum Corrections ◽  
Mass Generation ◽  
Scalar Particles ◽  
Scalar Quark ◽  
New Type ◽  
Large Quantum ◽  
Colored Scalar

We perform the first study for the bound states of colored scalar particles ϕ (“scalar quarks”) in terms of mass generation with quenched SU (3)c lattice QCD. We investigate the bound states of ϕ, ϕ†ϕ and ϕϕϕ (“scalar-quark hadrons”), as well as the bound states of ϕ and quarks ψ, i.e., ϕ†ψ, ψψϕ and ϕϕψ (“chimera hadrons”). All these new-type hadrons including ϕ have a large mass of several GeV due to large quantum corrections by gluons, even for zero bare scalar-quark mass mϕ = 0 at a−1 ~ 1 GeV . We find a similar mψ-dependence between ϕ†ψ and ϕϕψ, which indicates their similar structure due to the large mass of ϕ. From this study, we conjecture that all colored particles generally acquire a large effective mass due to dressed gluons.

scholarly journals Automated next-to-leading order predictions for new physics at the LHC: The case of colored scalar pair production

2015 ◽  
Vol 91 (9) ◽  
Author(s):  
Céline Degrande ◽  
Benjamin Fuks ◽  
Valentin Hirschi ◽  
Josselin Proudom ◽  
Hua-Sheng Shao
Keyword(s):  
Pair Production ◽  
New Physics ◽  
Leading Order ◽  
Colored Scalar

scholarly journals Light colored scalar as messenger of up-quark flavor dynamics in grand unified theories

2010 ◽  
Vol 82 (9) ◽  
Author(s):  
Ilja Doršner ◽  
Svjetlana Fajfer ◽  
Jernej F. Kamenik ◽  
Nejc Košnik
Keyword(s):  
Grand Unified Theories ◽  
Up Quark ◽  
Quark Flavor ◽  
Unified Theories ◽  
Colored Scalar
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