Yingyao Wang
· Associate Professor of Sociology and Director of Graduate StudiesUniversity of Virginia · Sociology and Anthropology
Active 2007–2024
About
Yingyao Wang is an associate professor of Sociology at the University of Virginia. His work intersects economic sociology, political sociology, and development, focusing on how political authorities and social networks influence markets and economic development. His research explores the role of the state in economic development, the facilitation of political authority through market expansion, and how political actors evaluate and contest development outcomes, thereby shaping the configuration of political authorities. Wang examines these questions within the contexts of industrial policy, taxation, financial market development, bureaucratic corruption, foreign direct investment, and China’s economic reform in general. He authored the book 'Markets with Bureaucratic Characteristics: How Economic Bureaucrats Make Policies and Remake the Chinese State,' which offers a detailed account of China’s economic reform, emphasizing the pivotal role of mid-level bureaucrats in shaping the country’s development and global ambitions. His articles have been published in journals such as the British Journal of Sociology, Socio-economic Review, and Review of International Political Economy. Currently, Wang is working on projects related to China’s industrial relocation, its knowledge structure of the world, and the relationship between corruption, finance, and the making of market frontiers. In addition to his empirical research, he writes about social and organizational theory.
Research topics
- Particle physics
- Nuclear physics
- Physics
- Computer Science
- Artificial Intelligence
- Mechanics
- Astrophysics
- Algorithm
- Optics
Selected publications
arXiv (Cornell University) · 2021 · 4 citations
- Physics
- Particle physics
- Nuclear physics
A search for exclusive two-photon production via photon exchange in proton-proton collisions, pp $\to$ p$\gamma\gamma$p with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb$^{-1}$ collected in 2016 using the CMS and TOTEM detectors at a center-of-mass energy of 13 TeV at the LHC. Events are selected with a diphoton invariant mass above 350 GeV and with both protons intact in the final state, to reduce backgrounds from strong interactions. The events of interest are those where the invariant mass and rapidity calculated from the momentum losses of the forward-moving protons matches the mass and rapidity of the central, two-photon system. No events are found that satisfy this condition. Interpreting this result in an effective dimension-8 extension of the standard model, the first limits are set on the two anomalous four-photon coupling parameters. If the other parameter is constrained to its standard model value, the limits at 95% CL are $\lvert\zeta_1\rvert\lt$ 2.88$\times$10$^{-13}$ GeV$^{-4}$ and $\lvert\zeta_2\rvert\lt$6.02$\times$10$^{-13}$GeV$^{-4}$.
Journal of High Energy Physics · 2020 · 46 citations
- Physics
- Particle physics
- Nuclear physics
A bstract A search for physics beyond the standard model in events with at least three charged leptons (electrons or muons) is presented. The data sample corresponds to an integrated luminosity of 137 fb − 1 of proton-proton collisions at $$ \sqrt{s} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 13 TeV, collected with the CMS detector at the LHC in 2016–2018. The two targeted signal processes are pair production of type-III seesaw heavy fermions and production of a light scalar or pseudoscalar boson in association with a pair of top quarks. The heavy fermions may be manifested as an excess of events with large values of leptonic transverse momenta or missing transverse momentum. The light scalars or pseudoscalars may create a localized excess in the dilepton mass spectra. The results exclude heavy fermions of the type-III seesaw model for masses below 880 GeV at 95% confidence level in the scenario of equal branching fractions to each lepton flavor. This is the most restrictive limit on the flavor-democratic scenario of the type-III seesaw model to date. Assuming a Yukawa coupling of unit strength to top quarks, branching fractions of new scalar (pseudoscalar) bosons to dielectrons or dimuons above 0.004 (0.03) and 0.04 (0.03) are excluded at 95% confidence level for masses in the range 15–75 and 108–340 GeV, respectively. These are the first limits in these channels on an extension of the standard model with scalar or pseudoscalar particles.
A deep neural network to search for new long-lived particles decaying to jets
Machine Learning Science and Technology · 2020 · 54 citations
- Artificial Intelligence
- Computer Science
- Physics
A tagging algorithm to identify jets that are significantly displaced from the proton-proton (pp) collision region in the CMS detector at the LHC is presented. Displaced jets can arise from the decays of long-lived particles (LLPs), which are predicted by several theoretical extensions of the standard model. The tagger is a multiclass classifier based on a deep neural network, which is parameterised according to the proper decay length c 0 of the LLP. A novel scheme is defined to reliably label jets from LLP decays for supervised learning. Samples of pp collision data, recorded by the CMS detector at a centre-of-mass energy of 13 TeV, and simulated events are used to train the neural network. Domain adaptation by backward propagation is performed to improve the simulation modelling of the jet class probability distributions observed in pp collision data. The potential performance of the tagger is demonstrated with a search for long-lived gluinos, a manifestation of split supersymmetric models. The tagger provides a rejection factor of 10 000 for jets from standard model processes, while maintaining an LLP jet tagging efficiency of 30%-80% for gluinos with 1 mmc 0 10 m. The expected coverage of the parameter space for split supersymmetry is presented.
A measurement of the Higgs boson mass in the diphoton decay channel
Physics Letters B · 2020 · 165 citations
- Physics
- Particle physics
- Nuclear physics
A measurement of the mass of the Higgs boson in the diphoton decay channel is presented. This analysis is based on 35.9 fb -1 of proton-proton collision data collected during the 2016 LHC running period, with the CMS detector at a centre-of-mass energy of 13 TeV. A refined detector calibration and new analysis techniques have been used to improve the precision of this measurement. The Higgs boson mass is measured to be m H = 125.78 0.26 GeV. This is combined with a measurement of m H already performed in the H ZZ 4 decay channel using the same data set, giving m H = 125.46 0.16 GeV. This result, when further combined with an earlier measurement of m H using data collected in 2011 and 2012 with the CMS detector, gives a value for the Higgs boson mass of m H = 125.38 0.14 GeV. This is currently the most precise measurement of the mass of the Higgs boson.
Journal of High Energy Physics · 2020 · 56 citations
- Physics
- Particle physics
- Nuclear physics
A bstract A search for a heavy Higgs boson in the mass range from 0.2 to 3.0 TeV, decaying to a pair of W bosons, is presented. The analysis is based on proton-proton collisions at $$ \sqrt{s} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 13 TeV recorded by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb − 1 . The W boson pair decays are reconstructed in the 2ℓ2 ν and ℓ ν 2q final states (with ℓ = e or μ ). Both gluon fusion and vector boson fusion production of the signal are considered. Interference effects between the signal and background are also taken into account. The observed data are consistent with the standard model (SM) expectation. Combined upper limits at 95% confidence level on the product of the cross section and branching fraction exclude a heavy Higgs boson with SM-like couplings and decays up to 1870 GeV. Exclusion limits are also set in the context of a number of two-Higgs-doublet model formulations, further reducing the allowed parameter space for SM extensions.
Frequent coauthors
- 819 shared
G. Hamel de Monchenault
Université Paris-Saclay
- 819 shared
M. Titov
Institut de Recherche sur les Lois Fondamentales de l'Univers
- 807 shared
A. Rosowsky
Institut de Recherche sur les Lois Fondamentales de l'Univers
- 785 shared
C. Bernet
Institut de Physique des 2 Infinis de Lyon
- 785 shared
M. Lethuillier
Institute of Nuclear Physics of Lyon
- 784 shared
M. Besançon
CEA Paris-Saclay
- 774 shared
F. Beaudette
Laboratoire Leprince-Ringuet
- 764 shared
A. Zghiche
École Polytechnique
Awards & honors
- Sociology of Development Best Book Award of American Sociolo…
- Best Paper Award on Asian Capitalism, 2014 Annual Meeting of…
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