A5003764900- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Particle Detector Development and Performance
- Cosmology and Gravitation Theories
- Quantum Chromodynamics and Particle Interactions
- Black Holes and Theoretical Physics
- High-Energy Particle Collisions Research
- Computational Physics and Python Applications
- Atomic and Subatomic Physics Research
- Muon and positron interactions and applications
- Pulsars and Gravitational Waves Research
- Particle Accelerators and Free-Electron Lasers
- Real-time simulation and control systems
- Mechanical Engineering and Vibrations Research
- International Science and Diplomacy
- Crystallography and Radiation Phenomena
- Superconducting Materials and Applications
- Superconducting and THz Device Technology
- Polymer Nanocomposites and Properties
- Distributed and Parallel Computing Systems
- Asphalt Pavement Performance Evaluation
- Global Health Care Issues
- Noncommutative and Quantum Gravity Theories
Max Planck Institute for Nuclear Physics
2020-2025
Oklahoma State University
2017-2023
Universidade Estadual de Campinas (UNICAMP)
2022
Fermi National Accelerator Laboratory
2018-2020
Max Planck Society
2020
University of Washington
2019
Institute of Physics, Bhubaneshwar
2018
Hari Shankar Singhania Elastomer And Tyre Research Institute
2013
The Forward Physics Facility (FPF) is a proposal to create cavern with the space and infrastructure support suite of far-forward experiments at Large Hadron Collider during High Luminosity era. Located along beam collision axis shielded from interaction point by least 100 m concrete rock, FPF will house that detect particles outside acceptance existing large LHC observe rare exotic processes in an extremely low-background environment. In this work, we summarize current status plans for FPF,...
Abstract We propose a simple extension to the Standard Model, wherein neutrinos naturally attain small Majorana masses through one-loop radiative mechanism featuring particles within loops characterized by milli-charges. Unlike conventional scotogenic model, our approach avoids imposing discrete symmetry or expanding gauge sector. The minuscule electric charges ensure stability of lightest particle loop as viable dark matter candidate. systematically investigate for both, freeze-in and...
We present a novel framework that provides an explanation to the long-standing excess of electronlike events in MiniBooNE experiment at Fermilab. suggest new dark sector containing neutrino and gauge boson, both with masses between few tens hundreds MeV. Dark neutrinos are produced via neutrino-nucleus scattering, followed by their decay which turn gives rise events. This mechanism excellent fit energy spectra angular distributions.
Models of radiative Majorana neutrino masses require new scalars and/or fermions to induce lepton number violating interactions. We show that these particles also generate observable nonstandard interactions (NSI) with matter. classify models as type-I or II, containing at least one Standard Model (SM) particle inside the loop diagram generating mass, and type-II having no SM loop. While do not tree-level NSI, popular which fall under category are shown, somewhat surprisingly, NSI...
This report summarizes the present status of neutrino non-standard interactions (NSI). After a brief overview, several aspects NSIs are discussed, including connection to mass models, model-building and phenomenology large NSI with both light heavy mediators, in short- long-baseline oscillation experiments, cross-sections, complementarity other low- high-energy fits scattering data, DUNE sensitivity NSI, effective field theory as well relevance dark matter cosmology. We also discuss open...
A bstract We present a model of radiative neutrino masses which also resolves anomalies reported in B -meson decays, $$ {R}_{D^{\left(\ast \right)}} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>R</mml:mi> <mml:msup> <mml:mi>D</mml:mi> <mml:mfenced> <mml:mo>∗</mml:mo> </mml:mfenced> </mml:msup> </mml:msub> </mml:math> and {R}_{K^{\left(\ast <mml:mi>K</mml:mi> , as well muon g − 2 measurement, ∆ μ . Neutrino arise the through loop diagrams involving TeV-scale...
Recent precise measurement of the electron anomalous magnetic moment (AMM) adds to longstanding tension muon AMM and together strongly point towards physics beyond Standard Model (BSM). In this work, we propose a solution both anomalies in an economical fashion via light scalar that emerges from second Higgs doublet resides $\mathcal{O}(10)$-MeV $\mathcal{O}(1)$-GeV mass range yielding right sizes signs for these deviations due one-loop two-loop dominance electron, respectively. A type is...
We propose a framework that addresses the origin of neutrino mass, explains observed discrepancies in electron and muon anomalous magnetic moments (AMMs) data, incorporates dark matter (DM) relic abundance. Both mass lepton AMMs are generated at one-loop level mediated by common set beyond Standard Model (SM) states. In this class models, SM is extended with vectorlike charged fermion scalar multiplets, all odd under an imposed ${\mathcal{Z}}_{2}$ symmetry, which stabilizes fermionic or DM...
Neutrinos may be the harbingers of new dark sectors, since renormalizable neutrino portal allows for their interactions with hidden physics. We propose here to use this fact connect generation masses a light sector, charged under $U(1)_{\cal D}$ gauge symmetry. introduce minimal number fields obtain an anomaly free theory spontaneous breaking symmetry, and automatically inverse seesaw Lagrangian. In addition, so-called $\mu$-term is dynamically generated technically natural in framework. As...
A bstract The excess in electron recoil events reported recently by the XENON1T experiment may be interpreted as evidence for a sizable transition magnetic moment $$ {\mu}_{v_e{v}_{\mu }} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>μ</mml:mi> <mml:mrow> <mml:mi>v</mml:mi> <mml:mi>e</mml:mi> </mml:msub> </mml:mrow> </mml:math> of Majorana neutrinos. We show consistency this scenario when single component takes values }}\in \left(1.65-3.42\right)\times...
We show an interesting correlation between the recent high precision measurement of W-boson mass by CDF Collaboration and muon (g-2) anomaly in context two Higgs doublet model. One-loop diagrams involving exchange neutral scalar bosons can explain (g-2), which, however, requires significant splittings among members second doublet. These also generate a positive shift W boson, consistent with measurement. The charged scalars model cannot be heavier than about 600 GeV for simultaneous...
The inclusion of heavy neutral leptons (right-handed neutrinos) to the Standard Model (SM) particle content is one best motivated ways account for observed neutrino masses and flavor mixing. modification charged currents from active-sterile mixing can provide novel signatures which be tested at future collider experiments. In this article, we explore discovery prospect a very right handed probe such extensions experiments like Large Hadron electron Collider (LHeC) liner collider. We consider...
The XENON1T collaboration recently reported an excess in electron recoil events the energy range between $1-7\,\mathrm{keV}$. This could be understood to originate from known solar neutrino flux, if neutrinos couple a light vector-mediator with strength $g_{\nu N}$ that kinetically mixes photon $\chi$, and N}\chi\sim10^{-13}$. Here, we show such coupling values can naturally arise renormalizable model of long-range vector-mediated self-interactions. discriminated other explanations by...
We present a simple extension of the Standard Model that leads to renormalizable long-range vector-mediated neutrino self-interactions. This model can resolve Hubble tension by delaying onset free-streaming during recombination, without conflicting with other measurements. The extended gauge, scalar, and sectors lead observable signatures, including invisible Higgs $Z$ decays, thereby relating precision measurements at LHC future colliders. has new neutrinophilic gauge boson...
Abstract In this work, we propose minimal realizations for generating Dirac neutrino masses in the context of a right-handed abelian gauge extension Standard Model. Utilizing only $$U(1)_R$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>U</mml:mi><mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:mn>1</mml:mn><mml:mo>)</mml:mo></mml:mrow><mml:mi>R</mml:mi></mml:msub></mml:mrow></mml:math> symmetry, address and analyze possibilities mass generation via (a) tree-level...
The significant neutrino flux at high rapidity the LHC motivates dedicated forward detectors to study properties of neutrinos TeV energies. We investigate magnetic dipole interactions between active and new sterile states emulsion liquid argon experiments that could be located in a future Forward Physics Facility (FPF) downstream ATLAS interaction point. up-scattering off electrons produces an electron recoil signature can probe regions parameter space High Luminosity (HL-LHC), particularly...
Tau neutrinos are the least studied particle in Standard Model. This whitepaper discusses current and expected upcoming status of tau neutrino physics with attention to broad experimental theoretical landscape spanning long-baseline, beam-dump, collider, astrophysical experiments. was prepared as a part NuTau2021 Workshop.
The LHCb measurements of the $\ensuremath{\mu}/e$ ratio in $B\ensuremath{\rightarrow}K\ensuremath{\ell}\ensuremath{\ell}$ decays $({R}_{K})$ indicate a deficit with respect to Standard Model prediction, supporting earlier hints lepton universality violation observed ${R}_{{K}^{(*)}}$ ratio. Possible explanations these $B$-physics anomalies include heavy ${Z}^{\ensuremath{'}}$ bosons or scalar and vector leptoquarks mediating...
We show that the photon-photon fusion process contributes significantly to pair production of doubly charged Higgs bosons at LHC a level comparable Drell-Yan production. reinterpret ATLAS lower limit 570 GeV (420 GeV) on mass $\Delta_{L}^{\pm\pm}$ ($\Delta_{R}^{\pm\pm}$) arising from $SU(2)_L$ triplet (singlet) scalar by including photon initiated and derive new 748 (570 GeV), assuming $\Delta^{\pm \pm}$ decays into $e^\pm e^\pm$ 100% time. have also shown 5$\sigma$ discovery reach for...
A bstract We show that the rate for di-Higgs production at LHC can be enhanced by a factor as large 25 compared to Standard Model value in two Higgs doublet model, while being consistent with known properties of observed boson h . There are correlated modifications $$ t\overline{t}h <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>t</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> <mml:mi>h</mml:mi> </mml:math> and resonant Zh rates, which serve tests this model. Our...
In the path towards a muon collider with center of mass energy 10 TeV or more, stage at 3 emerges as an appealing option. Reviewing physics potential such is main purpose this document. order to outline progression performances across stages, few sensitivity projections for higher are also presented. There many opportunities probing new collider. Some them in common extensively documented case CLIC stage, and include measuring Higgs trilinear coupling testing possible composite nature boson...
Abstract We investigate a prospect of probing the type-III seesaw neutrino mass generation mechanism at various collider experiments by searching for disappearing track and displaced vertex signature originating from decay $$SU(2)_L$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>S</mml:mi> <mml:mi>U</mml:mi> <mml:msub> <mml:mo>(</mml:mo> <mml:mn>2</mml:mn> <mml:mo>)</mml:mo> </mml:mrow> <mml:mi>L</mml:mi> </mml:msub> </mml:math> triplet fermion ( $$\Sigma $$...
Abstract We systematically investigate new physics scenarios that can modify the interactions between neutrinos and matter at upcoming tau neutrino telescopes, which will test neutrino-proton collisions with energies ≳ 45 TeV, provide unique insights to elusive neutrino. At such high energy scales, impact of parton distribution functions second third generations quarks (usually suppressed) be comparable contribution first generation small momentum fraction, hence making telescopes an...
A core-collapse supernova (SN) offers an excellent astrophysical laboratory to test non-zero neutrino magnetic moments. In particular, the neutronization burst phase, which lasts for few tens of milliseconds post-bounce, is dominated by electron neutrinos and can offer exceptional discovery potential transition We simulate spectra from phase in forthcoming experiments like Deep Underground Neutrino Experiment (DUNE), Hyper-Kamiokande (HK), taking into account spin-flavour conversions SN...
We carry out a systematic investigation for the minimal Dirac neutrino mass models emerging from generic one-loop and two-loop topologies that arise $d=5$ effective operator with singlet scalar, $\sigma$. To ensure tree-level mass, as well Majorana terms at all orders, are absent neutrinos, we work in framework where Standard Model is supplemented by well-motivated $U(1)_{B-L}$ gauge symmetry. At level, analyze six possible topologies, of which two them have potential to generate desired...