C. Becchi

activity

19942022

cc c ˉ c ˉ

tetraquark decays in 4 muons and in

D^{(*)} D ˉ^{(*)}

at LHC

89 citations · 337 across the 16 of their papers we have counts for

collaborators

16 papers

hep-ph2022★ 1 cited

The heavy tetra-quark states after the discovery of tetra-charm states

Carlo Becchi

This paper is devoted to the study of exclusive charm and bottom aggregates which are suitable, at least partially, for a non-relativistic description. Starting from a simple choic…

hep-ph2020★ 89 cited

A study of $cc c ˉ c ˉ$ tetraquark decays in 4 muons and in $D^{()} D ˉ^{()}$ at LHC

C. Becchi, A. Giachino, L. Maiani +1

We perform a quantitative analysis of the decays of $cc c ˉ c ˉ$ tetraquarks with $J^{P C} = 0^{++}, 2^{++}$ into 4 muons and into hidden- and open-charm mesons and estimate, for…

hep-ph2020★ 67 cited

Search for $bb b ˉ b ˉ$ tetraquark decays in 4 muons, $B^{+} B^{-}$ , $B^{0} B ˉ^{0}$ and $B_{s}^{0} B ˉ_{s}^{0}$ channels at LHC

C. Becchi, A. Giachino, L. Maiani +1

We perform a quantitative analysis of the $bb b ˉ b ˉ$ tetraquark decays into hidden- and open-bottom mesons and calculate, for the first time, the $bb b ˉ b ˉ$ tetraqu…

hep-th2016★ 1 cited

Renormalizable theories with symmetry breaking

Carlo M. Becchi

The description of symmetry breaking proposed by K. Symanzik within the framework of renormalizable theories is generalized from the geometrical point of view. For an arbitrary com…

hep-th2011★ 1 cited

An off-shell I.R. regularization strategy in the analysis of collinear divergences

Carlo M. Becchi, Alessandra Repetto

We present a method for the analysis of singularities of Feynman amplitudes based on the Speer sector decomposition of the Schwinger parametric integrals combined with the Mellin-B…

hep-th2011★ 28 cited

BRS "Symmetry", prehistory and history