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The Conway Moonshine Module is a Reflected K3 Theory (2020)
Journal Article
Taormina, A., & Wendland, K. (2020). The Conway Moonshine Module is a Reflected K3 Theory. Advances in Theoretical and Mathematical Physics, 24(5), 1247-1323. https://doi.org/10.4310/atmp.2020.v24.n5.a6

Recently, Duncan and Mack-Crane established an isomorphism, as Virasoro modules at central charges c = 12, between the space of states of the Conway Moonshine Module and the space of states of a special K3 theory that was extensively studied some tim... Read More about The Conway Moonshine Module is a Reflected K3 Theory.

Comments on Global Parton Analyses (2020)
Journal Article
Martin, A., & Ryskin, M. (2020). Comments on Global Parton Analyses. Acta Physica Polonica B, 51(5), 1079-1096. https://doi.org/10.5506/aphyspolb.51.1079

We discuss the causes which can limit the accuracy of the predictions based on the conventional PDFs when including in global parton analyses the data at moderate scales μ. The first is the existence of power corrections O(Q20/μ2) due to the double c... Read More about Comments on Global Parton Analyses.

Higher form symmetries and M-theory (2020)
Journal Article
Albertini, F., Del Zotto, M., García Etxebarria, I., & Hosseini, S. S. (2020). Higher form symmetries and M-theory. Journal of High Energy Physics, 2020(12), Article 203. https://doi.org/10.1007/jhep12%282020%29203

We discuss the geometric origin of discrete higher form symmetries of quantum field theories in terms of defect groups from geometric engineering in M-theory. The flux non-commutativity in M-theory gives rise to (mixed) ’t Hooft anomalies for the def... Read More about Higher form symmetries and M-theory.

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.

D Solar neutrino probes of the muon anomalous magnetic moment in the gauged U(1) L-mu-L-tau (2020)
Journal Article
Amaral, D., Cerdeño, D., Foldenauer, P., & Reid, E. (2020). D Solar neutrino probes of the muon anomalous magnetic moment in the gauged U(1) L-mu-L-tau. Journal of High Energy Physics, 2020(12), Article 155. https://doi.org/10.1007/jhep12%282020%29155

Models of gauged U(1)Lμ−Lτ can provide a solution to the long-standing discrepancy between the theoretical prediction for the muon anomalous magnetic moment and its measured value. The extra contribution is due to a new light vector mediator, which a... Read More about D Solar neutrino probes of the muon anomalous magnetic moment in the gauged U(1) L-mu-L-tau.

Higgs self-coupling measurements using deep learning in the bb¯¯bb¯¯ final state (2020)
Journal Article
Amacker, J., Balunas, W., Beresford, L., Bortoletto, D., Frost, J., Issever, C., …Stanislaus, B. (2020). Higgs self-coupling measurements using deep learning in the bb¯¯bb¯¯ final state. Journal of High Energy Physics, 2020(12), Article 115. https://doi.org/10.1007/jhep12%282020%29115

Measuring the Higgs trilinear self-coupling λhhh is experimentally demanding but fundamental for understanding the shape of the Higgs potential. We present a comprehensive analysis strategy for the HL-LHC using di-Higgs events in the four b-quark cha... Read More about Higgs self-coupling measurements using deep learning in the bb¯¯bb¯¯ final state.

CP violation in neutral lepton transition dipole moment (2020)
Journal Article
Balaji, S., Ramirez-Quezada, M., & Zhou, Y. (2020). CP violation in neutral lepton transition dipole moment. Journal of High Energy Physics, 2020(12), Article 90. https://doi.org/10.1007/jhep12%282020%29090

The CP violation in the neutrino transition electromagnetic dipole moment is discussed in the context of the Standard Model with an arbitrary number of right-handed singlet neutrinos. A full one-loop calculation of the neutrino electromagnetic form f... Read More about CP violation in neutral lepton transition dipole moment.

Very low x gluon density determined by LHCb exclusive J/ψ data (2020)
Journal Article
Flett, C., Martin, A., Ryskin, M., & Teubner, T. (2020). Very low x gluon density determined by LHCb exclusive J/ψ data. Physical Review D, 102(11), Article 114021. https://doi.org/10.1103/physrevd.102.114021

The low x behavior of the gluon density x g ( x , μ 2 ) at scale μ 2 = 2.4     GeV 2 is determined using exclusive J / ψ production data from HERA and LHCb within the framework of collinear factorization at next-to-leading order (NLO). It is shown th... Read More about Very low x gluon density determined by LHCb exclusive J/ψ data.

Worldline theories with towers of internal states (2020)
Journal Article
Abel, S., & Lewis, D. (2020). Worldline theories with towers of internal states. Journal of High Energy Physics, 2020(12), Article 69. https://doi.org/10.1007/jhep12%282020%29069

We study particle theories that have a tower of worldline internal degrees of freedom. Such a theory can arise when the worldsheet of closed strings is dimensionally reduced to a worldline, in which case the tower is infinite with regularly spaced ma... Read More about Worldline theories with towers of internal states.

Applications of alpha space (2020)
Journal Article
Rutter, D., & van Rees, B. C. (2020). Applications of alpha space. Journal of High Energy Physics, 2020(12), Article 48. https://doi.org/10.1007/jhep12%282020%29048

We extend the definition of ‘alpha space’ as introduced in [1] to two spacetime dimensions. We discuss how this can be used to find conformal block decompositions of known functions and how to easily recover several lightcone bootstrap results. In th... Read More about Applications of alpha space.

Dual description of η-deformed OSP sigma models (2020)
Journal Article
Alfimov, M., Feigin, B., Hoare, B., & Litvinov, A. (2020). Dual description of η-deformed OSP sigma models. Journal of High Energy Physics, 2020(12), Article 40. https://doi.org/10.1007/jhep12%282020%29040

We study the dual description of the η-deformed OSP(N|2m) sigma model in the asymptotically free regime (N > 2m + 2). Compared to the case of classical Lie groups, for supergroups there are inequivalent η-deformations corresponding to different choic... Read More about Dual description of η-deformed OSP sigma models.

Search for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at s=13  TeV (2020)
Journal Article
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., …Vetens, W. (2020). Search for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at s=13  TeV. Physical Review D, 102(11), Article 112004. https://doi.org/10.1103/physrevd.102.112004

A search is described for the production of a pair of bottom-type vectorlike quarks (VLQs), each decaying into a b or ¯ b quark and either a Higgs or a Z boson, with a mass greater than 1000 GeV. The analysis is based on data from proton-proton colli... Read More about Search for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at s=13  TeV.

Making near-extremal wormholes traversable (2020)
Journal Article
Fallows, S., & Ross, S. F. (2020). Making near-extremal wormholes traversable. Journal of High Energy Physics, 2020(12), Article 44. https://doi.org/10.1007/jhep12%282020%29044

We construct a traversable wormhole from a charged AdS black hole by adding a coupling between the two boundary theories. We investigate how the effect of this deformation behaves in the extremal limit of the black hole. The black holes have finite e... Read More about Making near-extremal wormholes traversable.

Nothing is certain in string compactifications (2020)
Journal Article
García Etxebarria, I., Montero, M., Sousa, K., & Valenzuela, I. (2020). Nothing is certain in string compactifications. Journal of High Energy Physics, 2020, Article 32. https://doi.org/10.1007/jhep12%282020%29032

A bubble of nothing is a spacetime instability where a compact dimension collapses. After nucleation, it expands at the speed of light, leaving “nothing” behind. We argue that the topological and dynamical mechanisms which could protect a compactific... Read More about Nothing is certain in string compactifications.

Yang-Baxter deformations of the principal chiral model plus Wess-Zumino term (2020)
Journal Article
Hoare, B., & Lacroix, S. (2020). Yang-Baxter deformations of the principal chiral model plus Wess-Zumino term. Journal of Physics A: Mathematical and Theoretical, 53(50), Article 505401. https://doi.org/10.1088/1751-8121/abc43d

A large class of integrable deformations of the principal chiral model, known as the Yang–Baxter deformations, are governed by skew-symmetric R-matrices solving the (modified) classical Yang–Baxter equation. We carry out a systematic investigation of... Read More about Yang-Baxter deformations of the principal chiral model plus Wess-Zumino term.

Infinite-Parameter ADHM Transform (2020)
Journal Article
Ward, R. (2021). Infinite-Parameter ADHM Transform. The Quarterly Journal of Mathematics, 72(1-2), 407-415. https://doi.org/10.1093/qmath/haaa054

The Atiyah–Drinfeld–Hitchin–Manin transform and its various generalizations are examples of nonlinear integral transforms between finite-dimensional moduli spaces. This note describes a natural infinite-dimensional generalization, where the transform... Read More about Infinite-Parameter ADHM Transform.

Higgs decay to fermion pairs at NLO in SMEFT (2020)
Journal Article
Cullen, J. M., & Pecjak, B. D. (2020). Higgs decay to fermion pairs at NLO in SMEFT. Journal of High Energy Physics, 2020(11), Article 79. https://doi.org/10.1007/jhep11%282020%29079

The calculation of next-to-leading order (NLO) perturbative corrections at fixed operator dimension in Standard Model Effective Field Theory (SMEFT) has been a topic of much recent interest. In this paper we obtain the NLO corrections from dimension-... Read More about Higgs decay to fermion pairs at NLO in SMEFT.

Single Particle Operators and their Correlators in Free N=4 SYM (2020)
Journal Article
Aprile, F., Drummond, J., Heslop, P., Paul, H., Sanfilippo, F., Santagata, M., & Stewart, A. (2020). Single Particle Operators and their Correlators in Free N=4 SYM. Journal of High Energy Physics, 2020(11), Article 72. https://doi.org/10.1007/jhep11%282020%29072

We consider a set of half-BPS operators in N = 4 super Yang-Mills theory which are appropriate for describing single-particle states of superstring theory on AdS5 × S5. These single-particle operators are defined to have vanishing two-point functions... Read More about Single Particle Operators and their Correlators in Free N=4 SYM.

Natural inflation, strong dynamics, and the role of generalized anomalies (2020)
Journal Article
Anber, M. M., & Baker, S. (2020). Natural inflation, strong dynamics, and the role of generalized anomalies. Physical Review D, 102(10), Article 103515. https://doi.org/10.1103/physrevd.102.103515

We revisit models of natural inflation and show that the single-field effective theory described by the potential V ( a ) ∼ cos a f breaks down as the inflaton a makes large-field excursions, even for values of f smaller than the Planck scale. To rem... Read More about Natural inflation, strong dynamics, and the role of generalized anomalies.