arXiv subjects

Chrisna Setyo Nugroho

Publications and source records attributed to Chrisna Setyo Nugroho.

At least 19 recordsLinked to original sources

arXiv2026

Discovery Potentials for the Cosmic Neutrino Background using Single Arm Interferometer

We study the interaction between light and non-relativistic cosmic neutrino background (CNB). We propose single arm laser interferometry with coherent laser source and two distinct squeezing operators to probe such interaction. We analyze the induced phase shift in four distinct quantum regimes of the interferometer operation: the standard quantum limit (SQL), the Heisenberg limit, super-Heisenberg limit with $N^{3/2}$ enhancement, and super-Heisenberg limit with $N^{2}$ enhancement where $N$ is the number of photons in the interferometer. We demonstrate that the $N^{2}$ super-Heisenberg enhancement has the potential to probe the magnetic moment down to $10^{-25}\, μ_{B}$ where $ μ_{B}$ is the Bohr magneton. If the CNB and photons interact via its magnetic moment, this interaction could be revealed in single arm interferometer operating at super-Heisenberg limit with $N^{2}$ enhancement.

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arXiv2026

Detection prospects for the Cosmic Neutrino Background using matter interferometers

In this paper we discuss how the Cosmic Neutrino Background can affect the measured phase difference in a matter interferometer. This phase is proportional to a difference in potential energies along the two interferometer paths. The relevant potentials here are the well-known neutrino matter potential and a potential related to the Stodolsky effect. We show how they can be rewritten in terms of scalar potentials, pseudo magnetic fields and spin-spin interactions. Unfortunately, current technology is unlikely to detect this effect and we discuss prospects for the future. We also briefly comment on fermionic Dark Matter which can give rise to very similar effects which can easily be larger than the neutrino case.

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arXiv2025

Synchronization Induced by Ultralight Dark Matter

We study the possibility of ultralight bosonic dark matter (UlDM) to induce a synchronized behaviour on randomly evolving oscillators. We introduce a new interaction between UlDM and the oscillators and further demonstrate the occurence of the phase transition from disordered oscillators state into ordered state. For UlDM within the mass range of $10^{-14}\,\text{eV}/c^{2} \leq m_ϕ \leq 1 \,\text{eV}/c^{2}$ as well as the white noise strength lower than 0.01 Hz, the synchronization of randomly distributed oscillators with the mean angular frequency $1$ Hz and the corresponding standard deviation 0.1 Hz occurs when the coupling strength between UlDM and oscillators lies within $10 \geq g_ω \geq 10^{-13}$. This offers an alternative method to unveil the nature of UlDM with respect to the established experiments.

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arXiv2025

Detection Prospects of Millicharged Dark Matter in Unconventional Interferometer

We propose a novel idea to discover millicharged particles (mCPs) captured by the earth during its existence. It has been demonstrated that the mCPs accumulation inside the earth leads to the enhancement of its number density much larger than the corresponding virial density. We propose to utilize an unconventional laser interferometer to probe these earth-bound mCPs through the detection of the photons's phase shift. We demonstrate that, for mCPs mass in the range between $1$ GeV to $10^{12}$ GeV, the sensitivity of probing their fractional electric charge $ε$ could reach as low as $10^{-12}$ to $10^{-6}$ provided that mCPs number density is greater than $1~\text{cm}^{-3}$.

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arXiv2025

Probing Terrestrial Relic Neutrino Charge with Mach-Zehnder Interferometer

We propose a novel method to probe the cosmic neutrino background (CNB) which has been shown to be accumulated on the surface of the earth. If such relic neutrino carries non-zero electric charge, Mach-Zehnder interferometer offers a suitable venue to unveil its interaction with photons. For neutrino mass equals to 0.05 eV, the sensitivity reach of our proposal could probe the fractional electric charge of the neutrino $ε_ν$ as low as $9.3 \times 10^{-11},\, 1.6 \times 10^{-16}$, and $2.9 \times 10^{-22}$ provided that the interferometer operates at standard quantum limit (SQL), the Heisenberg limit as well as super-Heisenberg limit, respectively.

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arXiv2024

Dark Photon-Photon Resonance Conversion of GRB221009A through Extra Dimension

The recently observed very high energy (VHE) photons dubbed as GRB221009A by several terrestrial observatories such as LHAASO and Carpet-2 require a physics explanation beyond the standard model. Such energetic gamma ray bursts, originating from yet unknown very distance source at redshift z = 0.1505, would be directly scattererd by extragalactic background lights (EBL) rendering its improbable detection at the earth. We show that dark photon which resides in extra dimension would be able to resolve this issue when it oscillates resonantly with the photon in similar fashion with neutrino oscillation. We demonstrate that, for dark photon mass equals to 1 eV, the probability of GRB221009A photons with energy above 0.2 TeV to reach the earth lies in the range between $10^{-6} \, \text{to} \, 95\% $ for kinetic mixing values $10^{-14} \leq ε\leq 10^{-12.5}$ allowed by current constraints.

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arXiv2024

Probing Cosmic Neutrino Background Charge via Unconventional Interferometer

If neutrinos carry non-zero electric charge, they would interact directly with photons. This would induce a phase shift along the photon path in the optical experiment. We propose a novel idea to detect this phase shift induced by cosmic neutrino background (CNB) and the photon interaction using laser interferometry experiment. We show that our setup can probe the CNB neutrino charge in the order of $10^{-18} \,e- 10^{-17}\, e$. This is quite competitive with the existing upper bound on neutrino charge from both laboratory experiments and astrophysical observations.

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arXiv2024

Impacts of ALP on the Constraints of Dark Photon

Dark sector may exist and interact with Standard Model (SM) through the $U(1)$ kinetic mixing. Through this portal-type interaction, dark photon from dark sector couples to SM fermions, and may explain the discrepancy between experimental data and SM calculations on muon anomalous magnetic moment, muon $g-2$. However, current searches for dark photon impose stringent constraints on the mixing parameter $\varepsilon$ for various dark photon masses, excluding the favorite parameter space for muon $g-2$. In this paper, we study the case where a global $U(1)$ in dark sector is spontaneously broken, resulting a light pseudo-Goldstone, axion-like particle (ALP) $a$, which couples to dark photon and SM photon, $g_{aγγ'}$. Through this interaction, dark photon may decay into photon and ALP when this channel is kinematically allowed. As a result, the experimental constraints on dark photon change significantly, and dark photon is able to explain the muon $g-2$ anomaly when its mass is heavier than $10$ GeV.

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arXiv2023

Implications of Gamma Ray Burst GRB221009A for Extra Dimensions

Anomalous high energy photons, known as GRB221009A, with 18 TeV and 251 TeV were observed by LHAASO and Carpet-2 recently. Such observation of high energy gamma-ray bursts from distant source causes a mystery since high energy photons suffer severe attenuation before reaching the earth. One possibility is the existence of axion-like particles (ALP), and high energy photons at the source can convert to these ALPs which travel intergalactically. In this paper, we study the effects of extra dimensions on the conversion probability between photon and ALPs. The conversion probability saturates and may reach almost $100\%$ for high energy photons. We show that the size of extra dimension affects the energy at which saturation occurs. The observations of high-energy photons may support the possibility of smaller extra dimension.

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arXiv2023

Effects of Kaluza-Klein Neutrinos on $R_{D}$ and $R_{D^{*}}$

Recent measurements of $R_{D}$ and $R_{D^{*}}$ by the LHCb collaboration show deviations from their respective Standard Model values. These semileptonic $B$ meson decays, associated with $b\rightarrow c τ\barν$ transition, are pointing toward new physics beyond the Standard Model via leptonic flavor universality violation. In this paper, we show that such anomaly can be resolved by the cummulative Kaluza-Klein (KK) modes of singlet right-handed neutrino which propagates in the large extra dimensional space. We found that the number of extra dimension should be 2 to explain $R_{D}$ and $R_{D^{*}}$. We show that both $R_{D}$ and $R_{D^{*}}$ constraint the energy scale $M_{F}$ of this extra dimension which are compatible with the limits from lepton flavor violating tau decays. In contrast, our findings are in tension with the limits coming from the neutrino experiments which set the most stringent lower bound on $M_{F}$. The future measurements of $R_{D^{(*)}}^{exp}$ with reduced uncertainties will exclude this extra dimensional model with right-handed neutrino propagating in the bulk, if the central values stay.

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arXiv2023

Exploring dark photons via a subfrequency laser searchin gravitational wave detectors

We propose a novel idea to detect a dark photon in gravitational wave experiments. Our setups are capable of performing the whole process of dark photon production, its decay products, and new physics signal discovery. This mini-LHC is inspired by the recent idea of dark photon detection using laser light in light shining through the wall (LSW) experiments such as ALPS II. Taking the subfrequency light emitted from the laser source as the new physics signal, we show that the sensitivity of our proposal is 2orders of magnitude better than the original idea in the LSW studies.

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arXiv2022

Millicharge Dark Matter Detection with Mach-Zehnder Interferometer

If the dark sector exists and communicates with Standard Model through the $U(1)$ mixing, it is possible that electromagnetism would have influence on matter fields in dark sector, so-called millicharge particles (mCPs). Furthermore, the highest mCPs could be dark matter particles. Recently it has been shown that the mCPs would be slowed down and captured by the earth. As a result, the number density of accumulated mCPs underground is enhanced by several orders of magnitude as compared to that of dark matter in our solar system. In this study, we propose to use the Mach-Zehnder (MZ) laser interferometer to detect earth bound mCPs through the detection of phase shifts of photons. We show that, for mass of mCPs lager than $1$ GeV, the sensitivity of probing the mixing parameter $ε$ could reach as low as $10^{-11}$ if number density is larger than $1~\rm{cm^{-3}}$.

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arXiv2021

Lepton Universality Violation by Kaluza-Klein Neutrinos in $b\to s l l$ transition

Recent measure of $R_K$, involving the decays of $b\to s l^+ l^-$, by the LHCb at CERN strengthened the deviation from the Standard Model prediction. The best fit in the updated global analysis suggests that the muon specific Wilson coefficients $C^{bsμμ}_9=-C^{bsμμ}_{10}$ should be about $-0.41$. In this paper, we show that the accumulate effects of KK modes of a singlet Dirac neutrino propagating in the large extra-dimensional space naturally provide $C^{bs l l}_9=-C^{bs l l}_{10}$ to explain the anomaly. By taking the muon Yukawa coupling to be of ${\cal O}(1)$, the fundamental scale in the extra-dimensional framework should be lowered down to about $2.9$ TeV if there are two additional spatial dimensions.

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arXiv2021

Detection Prospects of Dark Matter in Einstein Telescope

We improve the calculations of the elastic motion induced by the dark matter hits on the surface of the mirror equipped with the interferometer for gravitational waves detection. We focus on the discovery potential of such a dark matter signal on the third-generation European gravitational waves detector, the Einstein Telescope. By taking the thickness of mirror into account, more than one resonances are predicted in the sensitive regime of high frequency interferometer. When mass of dark matter is heavier than a few PeV or is highly boosted, the signal-to-noise ratio could exceed one, and Einstein Telescope should be about to detect this dark matter signal.

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arXiv2020

Effects of New Heavy Fermions on Complex Scalar Dark Matter Phenomenology in Gauged Two Higgs Doublet Model

We study the inclusion of new heavy fermions on complex scalar dark matter (DM) phenomenology within gauged two Higgs doublet model (G2HDM). We find that for DM mass above 1 TeV, heavy quarks coannihilations into the Standard Model (SM) quarks and gluons dominate the thermally-averaged cross section relevant for the relic abundance of complex scalar DM. We demonstrate that the effects of QCD Sommerfeld correction as well as QCD bound state formation in determining the DM relic are negligible. We show that the allowed parameter space is significantly constrained by the current PLANCK relic density data as well as XENON1T limit appropriate for DM direct search.

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arXiv2020

Light Dark Matter Scattering in Gravitational Wave Detectors

We present prospects for discovering dark matter scattering in gravitational wave detectors. The focus of this work is on light, particle dark matter with masses below 1 GeV/c$^{2}$. We investigate how a potential signal compares to typical backgrounds like thermal and quantum noise, first in a simple toy model and then using KAGRA as a realistic example. That shows that for a discovery much lighter and cooler mirrors would be needed. We also give some brief comments on space-based experiments and future atomic interferometers.

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arXiv2019

Complex Scalar Dark Matter in G2HDM

The complex scalar dark matter (DM) candidate in the gauged two Higgs doublet model (G2HDM), stabilized by a peculiar hidden parity ($h$-parity), is studied in detail. We explore the parameter space for the DM candidate by taking into account the most recent DM constraints from various experiments, in particular, the PLANCK relic density measurement and the current DM direct detection limit from XENON1T. We separate our analysis in three possible compositions for the mixing of the complex scalar. We first constrain our parameter space with the vacuum stability and perturbative unitarity conditions for the scalar potential, LHC Higgs measurements, plus Drell-Yan and electroweak precision test constraints on the gauge sector. We find that DM dominated by composition of the inert doublet scalar is completely excluded by further combining the previous constraints with both the latest results from PLANCK and XENON1T. We also demonstrate that the remaining parameter space with two other DM compositions can be further tested by indirect detection like the future CTA gamma-ray telescope.

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arXiv2018

Electron Electric Dipole Moment in Mirror Fermion Model with Electroweak Scale Non-sterile Right-handed Neutrinos

The electric dipole moment of the electron is studied in detail in an extended mirror fermion model with the following unique features of (a) right-handed neutrinos are non-sterile and have masses at the electroweak scale, and (b) a horizontal symmetry of the tetrahedral group is used in the lepton and scalar sectors. We study the constraint on the parameter space of the model imposed by the latest ACME experimental limit on electron electric dipole moment. Other low energy experimental observables such as the anomalous magnetic dipole moment of the muon, charged lepton flavor violating processes like muon decays into electron plus photon and muon-to-electron conversion in titanium, gold and lead are also considered in our analysis for comparison. In addition to the well-known CP violating Dirac and Majorana phases in the neutrino mixing matrix, the dependence of additional phases of the new Yukawa couplings in the model is studied in detail for all these low energy observables.

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