Search For New Physics at BABAR

Godang, R.

doi:10.1051/epjconf/20134915002

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…According to quantum field theory (QFT), new heavy particles can contribute to the decay process through virtual loop diagrams. These make precision measurements sensitive to new physics, and this technique is widely used in high intensity collider experiments such as BESIII [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

New Physics Searches at the BESIII Experiment

Olsen¹

2021

Preprint

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The Standard Model (SM) of particle physics, comprised of the unified electro-weak (EW) and Quantum Chromodynamic (QCD) theories, accurately explains almost all experimental results related to the micro-world, and has made a number of predictions for previously unseen particles, most notably the Higgs scalar boson, that were subsequently discovered. As a result, the SM is currently universally accepted as the theory of the fundamental particles and their interactions. However, in spite of its numerous successes, the SM has a number of apparent shortcomings including: many free parameters that must be supplied by experimental measurements; no mechanism to produce the dominance of matter over antimatter in the universe; and no explanations for gravity, the dark matter in the universe, neutrino masses, the number of particle generations, etc. Because of these shortcomings, there is considerable incentive to search for evidence for new, non-SM physics phenomena that might provide important clues about what a new, beyond the SM theory (BSM) might look like. Although the center-of-mass energies that BESIII can access are far below the energy frontier, searches for new, BSM physics are an important component of its research program. Here we describe ways that BESIII looks for signs of BSM physics by measuring rates for processes that the SM predicts to be forbidden or very rare, searching for non-SM particles such as dark photons, making precision tests of SM predictions, and looking for violations of the discrete symmetries C and CP in processes for which the SM-expectations are immeasurably small.

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Section: Introductionmentioning

confidence: 99%

New Physics Searches at the BESIII Experiment

Olsen¹

2021

Preprint

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New physics searches at the BESIII experiment

Olsen

2021

National Science Review

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The standard model (SM) of particle physics, comprised of the unified electroweak and quantum chromodynamic theories, accurately explains almost all experimental results related to the micro-world, and has made a number of predictions for previously unseen particles, most notably the Higgs scalar boson, that were subsequently discovered. As a result, the SM is currently universally accepted as the theory of the fundamental particles and their interactions. However, in spite of its numerous successes, the SM has a number of apparent shortcomings, including: many free parameters that must be supplied by experimental measurements; no mechanism to produce the dominance of matter over antimatter in the universe; and no explanations for gravity, the dark matter in the universe, neutrino masses, the number of particle generations, etc. Because of these shortcomings, there is considerable incentive to search for evidence for new, non-SM physics phenomena that might provide important clues about what a new, beyond the SM theory (BSM) might look like. Although the center-of-mass energies that BESIII can access are far below the energy frontier, searches for new, BSM physics are an important component of its research program. This report reviews some of the highlights from BESIII’s searches for signs of new, BSM physics by: measuring rates for processes that the SM predicts to be forbidden or very rare; searching for non-SM particles such as dark photons; performing precision tests of SM predictions; and looking for violations of the discrete symmetries C and CP in processes for which the SM expectations are immeasurably small.

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Embedding the 125 GeV Higgs boson measured at the LHC in an effective MSSM: Possible implications for neutralino dark matter

2013

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We analyze the phenomenological consequences of assuming that the 125 GeV boson measured at the LHC coincides with one of the two CP-even Higgs bosons of an effective Minimal Supersymmetric extension of the Standard Model at the electroweak scale. We consider the two ensuing scenarios and discuss critically the role of the various experimental data (mainly obtained at colliders and at B-factories) which provide actual or potential constraints to supersymmetric properties. Within these scenarios, properties of neutralinos as dark matter particles are analyzed from the point of view of their cosmological abundance and rates for direct and indirect detections.

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Search For New Physics at BABAR

Cited by 3 publications

References 15 publications

New Physics Searches at the BESIII Experiment

New Physics Searches at the BESIII Experiment

New physics searches at the BESIII experiment

Embedding the 125 GeV Higgs boson measured at the LHC in an effective MSSM: Possible implications for neutralino dark matter

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