scholarly journals Heavy ions: Results from the Large Hadron Collider

Pramana ◽  
2012 ◽  
Vol 79 (4) ◽  
pp. 719-735 ◽  
Author(s):  
TAPAN K NAYAK
2018 ◽  
Vol 191 ◽  
pp. 02015
Author(s):  
Mikhail Vysotsky ◽  
Evgenii Zhemchugov

The Large Hadron Collider is considered as a photon-photon collider with the photons produced in ultraperipheral collisions of protons or heavy ions. The equivalent photon approximation is applied to derive analytical formulae for the fiducial cross sections of reactions pp(γγ) → pp μ+μ- and Pb Pb (γγ) → Pb Pb μ+μ-. The results are compared to the measurements reported by the ATLAS collaboration.


2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Linda M. Carpenter ◽  
Taylor Murphy ◽  
Matthew J. Smylie

Abstract In this work we study the collider phenomenology of color-octet scalars (sgluons) in minimal supersymmetric models endowed with a global continuous R symmetry. We systematically catalog the significant decay channels of scalar and pseudoscalar sgluons and identify novel features that are natural in these models. These include decays in nonstandard diboson channels, such as to a gluon and a photon; three-body decays with considerable branching fractions; and long-lived particles with displaced vertex signatures. We also discuss the single and pair production of these particles and show that they can evade existing constraints from the Large Hadron Collider, to varying extents, in large regions of reasonable parameter space. We find, for instance, that a 725 GeV scalar and a 350 GeV or lighter pseudoscalar can still be accommodated in realistic scenarios.


Author(s):  
S. A. Antipov ◽  
N. Biancacci ◽  
J. Komppula ◽  
E. Métral ◽  
B. Salvant ◽  
...  

Author(s):  
T. E. Levens ◽  
K. Łasocha ◽  
T. Lefevre ◽  
M. Gąsior ◽  
R. Jones ◽  
...  

2020 ◽  
Vol 28 ◽  
pp. 2228-2234
Author(s):  
E. Solfiti ◽  
M. Calviani ◽  
A. Perillo-Marcone ◽  
J.M. Heredia ◽  
C. Torregrosa ◽  
...  

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