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Self-Induced Transparency in Warm and Strongly Interacting Rydberg Gases (2020)
Journal Article
Bai, Z., Adams, C. S., Huang, G., & Li, W. (2020). Self-Induced Transparency in Warm and Strongly Interacting Rydberg Gases. Physical Review Letters, 125(26), Article 263605. https://doi.org/10.1103/physrevlett.125.263605

We study dispersive optical nonlinearities of short pulses propagating in high number density, warm atomic vapors where the laser resonantly excites atoms to Rydberg P states via a single-photon transition. Three different regimes of the light-atom i... Read More about Self-Induced Transparency in Warm and Strongly Interacting Rydberg Gases.

Contribution of the Darwin operator to non-leptonic decays of heavy quarks (2020)
Journal Article
Lenz, A., Piscopo, M. L., & Rusov, A. V. (2020). Contribution of the Darwin operator to non-leptonic decays of heavy quarks. Journal of High Energy Physics, 2020(12), Article 199. https://doi.org/10.1007/jhep12%282020%29199

We compute the Darwin operator contribution (1/m3b correction) to the width of the inclusive non-leptonic decay of a B meson (B+, Bd or Bs), stemming from the quark flavour-changing transition b → q1q¯¯2q3, where q1, q2 = u, c and q3 = d, s. The key... Read More about Contribution of the Darwin operator to non-leptonic decays of heavy quarks.

Dark matter of any spin: An effective field theory and applications (2020)
Journal Article
Criado, J. C., Koivunen, N., Raidal, M., & Veermäe, H. (2020). Dark matter of any spin: An effective field theory and applications. Physical Review D, 102(12), Article 125031. https://doi.org/10.1103/physrevd.102.125031

We develop an effective field theory of a generic massive particle of any spin and, as an example, apply this to study higher-spin dark matter (DM). Our formalism does not introduce unphysical degrees of freedom, thus avoiding the potential inconsist... Read More about Dark matter of any spin: An effective field theory and applications.