R. Cervantes
A5003478348- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Particle Detector Development and Performance
- Astrophysics and Cosmic Phenomena
- Neutrino Physics Research
- Superconducting and THz Device Technology
- Particle accelerators and beam dynamics
- Cosmology and Gravitation Theories
- Particle Accelerators and Free-Electron Lasers
- Quantum Information and Cryptography
- Radio Astronomy Observations and Technology
- Computational Physics and Python Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Scientific Research and Discoveries
- Mechanical and Optical Resonators
- Nuclear physics research studies
- Nuclear reactor physics and engineering
- Photonic and Optical Devices
- Nuclear Physics and Applications
- Gyrotron and Vacuum Electronics Research
- CCD and CMOS Imaging Sensors
- Homotopy and Cohomology in Algebraic Topology
Fermi National Accelerator Laboratory
2022-2024
University of Washington
2017-2024
Quantum Science Center
2024
Stony Brook University
2017-2023
Kurchatov Institute
2020-2023
PHENIX laboratory
2019-2023
Seattle University
2023
Lawrence Livermore National Laboratory
2022
Brookhaven National Laboratory
2019
Augustana University
2018-2019
This Letter reports on a cavity haloscope search for dark matter axions in the Galactic halo mass range 2.81-3.31 μeV. utilizes combination of low-noise Josephson parametric amplifier and large-cavity to achieve unprecedented sensitivity across this range. excludes full axion-photon coupling values predicted benchmark models invisible axion that solve strong CP problem quantum chromodynamics.
The μeV axion is a well-motivated extension to the standard model. Axion Dark Matter eXperiment (ADMX) collaboration seeks discover this particle by looking for resonant conversion of dark-matter axions microwave photons in strong magnetic field. In Letter, we report results from pathfinder experiment, ADMX "Sidecar," which designed pave way future, higher mass, searches. This testbed experiment lives inside and operates tandem with main experiment. Sidecar excludes masses three widely...
The most sensitive direct method to establish the absolute neutrino mass is observation of endpoint tritium beta-decay spectrum. Cyclotron radiation emission spectroscopy (CRES) a precision spectrographic technique that can probe much unexplored range with resolution. A lower bound set by observations oscillations, while KATRIN experiment—the current-generation experiment based on magnetic adiabatic collimation an electrostatic (MAC-E) filter—will achieve sensitivity . CRES aims avoid...
Searching for axion dark matter, the ADMX Collaboration acquired data from January to October 2018, over mass range 2.81–3.31 μeV, corresponding frequency 680–790 MHz. Using an haloscope consisting of a microwave cavity in strong magnetic field, experiment excluded Dine-Fischler-Srednicki-Zhitnisky (DFSZ) axions at 90% confidence level and 100% matter density this entire range, except few gaps due mode crossings. This paper explains full analysis run 1B, motivating choices informed by...
We describe the first implementation of a Josephson Traveling Wave Parametric Amplifier (JTWPA) in an axion dark matter search. The operation JTWPA for period about two weeks achieved sensitivity to axion-like particle with axion-photon couplings above 10-13 Ge V-1 over narrow range masses centered around 19.84 µeV by tuning resonant frequency cavity 4796.7-4799.5 MHz. was operated insert experiment as part independent receiver chain that attached 0.56-l cavity. ability deliver high gain...
Recently, multiparticle-correlation measurements of relativistic $p/d/^{3}\mathrm{He}+\mathrm{Au}$, $p+\mathrm{Pb}$, and even $p+p$ collisions show surprising collective signatures. Here, we present beam-energy-scan two-, four-, six-particle angular correlations in $d+\mathrm{Au}$ at $\sqrt{{s}_{NN}}=200$, 62.4, 39, 19.6 GeV. We also two- four-particle $p+\mathrm{Au}$ $\sqrt{{s}_{NN}}=200\text{ }\text{ }\mathrm{GeV}$. find the cumulant to be real valued for all four energies. that has...
Axion dark matter experiment ultra-low noise haloscope technology has enabled the successful completion of two science runs (1A and 1B) that looked for axions in 2.66-3.1 μeV mass range with Dine-Fischler-Srednicki-Zhitnisky sensitivity [Du et al., Phys. Rev. Lett. 120, 151301 (2018) Braine 124, 101303 (2020)]. Therefore, it is most sensitive axion search to date this range. We discuss technological advances made last several years achieve sensitivity, which includes implementation...
We propose a novel search technique for axions with $CP$-violating monopole coupling ${\stackrel{\texttildelow{}}{g}}_{Q}$ to bulk Standard Model charges $Q\ensuremath{\in}{B,L,B\ensuremath{-}L}$. Gradients in the static axion field configurations sourced by matter induce achromatic circular photon birefringence via axion-photon ${g}_{\ensuremath{\phi}\ensuremath{\gamma}}$. Circularly polarized light fed into an optical or (open) radio-frequency (RF) Fabry-P\'erot (FP) cavity develops phase...
We present the first measurements of long-range angular correlations and transverse momentum dependence elliptic flow $v_2$ in high-multiplicity $p$$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV. A comparison these results with previous $d$$+$Au $^3{\rm He}$$+$Au demonstrates a relation between initial collision eccentricity $\varepsilon_2$, suggesting that observed momentum-space azimuthal anisotropies small systems have collective origin reflect geometry. Good agreement is measured...
Asymmetric nuclear collisions of $p+\mathrm{Al}$, $p+\mathrm{Au}$, $d+\mathrm{Au}$, and $^{3}\mathrm{He}+\mathrm{Au}$ at $\sqrt{{s}_{NN}}=200\text{ }\text{ }\mathrm{GeV}$ provide an excellent laboratory for understanding particle production, as well exploring interactions among these particles after their initial creation in the collision. We present measurements charged hadron production $d{N}_{\text{ch}}/d\ensuremath{\eta}$ all such collision systems over a broad pseudorapidity range...
Microwave cavities have been deployed to search for bosonic dark matter candidates with masses of a few μeV. However, the sensitivity these cavity detectors is limited by their volume, and traditionally employed half-wavelength suffer from significant volume reduction at higher masses. Axion experiment (ADMX)-Orpheus mitigates this issue operating tunable, dielectrically loaded higher-order mode, which allows detection remain large. The ADMX-Orpheus inaugural run excludes photon kinetic...
Dark matter makes up 85% of the in Universe and 27% its energy density, but we do not know what comprises dark matter. It is possible that composed either axions or photons, both which can be detected using an ultrasensitive microwave cavity known as a haloscope. The haloscope employed by ADMX consists cylindrical operating at ${\mathrm{TM}}_{010}$ mode sensitive to QCD axion with masses few $\ensuremath{\mu}\mathrm{eV}$. However, this design becomes challenging implement for higher masses....
PHENIX reports differential cross sections of $\mu\mu$ pairs from semileptonic heavy-flavor decays and the Drell-Yan production mechanism measured in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV forward backward rapidity ($1.2<|\eta|<2.2$). The $c\bar{c}$, $b\bar{b}$, are separated using a template fit to unlike- like-sign muon pair spectra mass $p_T$. azimuthal opening angle correlation between muons $c\bar{c}$ $b\bar{b}$ pair-$p_T$ distributions compared generated {\sc pythia} powheg}...
We describe the current status of DarkLight experiment at Jefferson Laboratory. is motivated by possibility that a dark photon in mass range 10 to 100 MeV/c$^2$ could couple sector Standard Model. will precisely measure electron proton scattering using MeV beam intensity 5 mA Laboratory energy recovering linac incident on windowless gas target molecular hydrogen. The complete final state including scattered electron, recoil proton, and e+e- pair be detected. A phase-I has been funded...
The PHENIX Collaboration has measured the ratio of yields $\ensuremath{\psi}(2S)$ to $\ensuremath{\psi}(1S)$ mesons produced in $p+p$, $p+\mathrm{Al}$, $p+\mathrm{Au}$, and $^{3}\mathrm{He}+\mathrm{Au}$ collisions at $\sqrt{{s}_{{}_{\mathit{NN}}}}=200$ GeV over forward backward rapidity intervals $1.2<|y|<2.2$. We find that $p+p$ is consistent with measurements other collision energies. In nuclei, we ($p$-going or $^{3}\mathrm{He}$-going) direction, relative yield value collisions. However,...
This is a Snowmass white paper on the utility of existing and future superconducting cavities to probe fundamental physics. Superconducting radio frequency (SRF) cavity technology has seen tremendous progress in past decades, as tool for accelerator science. With advances spear-headed by SQMS center at Fermilab, they are now being brought quantum regime becoming science thanks high degree coherence. The same quality factor can be leveraged search new physics, including searches particles,...
The PHENIX collaboration presents a systematic study of $\pi^0$ production from $p$$+$$p$, $p$$+$Al, $p$$+$Au, $d$$+$Au, and $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV. Measurements were performed with different centrality selections as well the total inelastic, 0%--100%, selection for all collision systems. For 0%--100% collisions, nuclear modification factors, $R_{xA}$, are consistent unity $p_T$ above 8 GeV/$c$, but exhibit an enhancement in peripheral suppression central...
We present measurements of the transverse-momentum dependence elliptic flow ${v}_{2}$ for identified pions and (anti)protons at midrapidity ($|\ensuremath{\eta}|<0.35$), in 0%--5% central $p+\mathrm{Au}$ $^{3}\mathrm{He}+\mathrm{Au}$ collisions $\sqrt{{s}_{{}_{NN}}}=200$ GeV. When taken together with previously published $d+\mathrm{Au}$ GeV, results cover a broad range small-collision-system multiplicities intrinsic initial geometries. observe clear mass-dependent splitting...
There is strong evidence for the formation of small droplets quark-gluon plasma in $p/d/^{3}\mathrm{He}+\mathrm{Au}$ collisions at Relativistic Heavy Ion Collider (RHIC) and $p+p/\mathrm{Pb}$ Large Hadron Collider. In particular, analysis data RHIC different geometries obtained by varying projectile size shape has proved insightful. present analysis, we find excellent agreement with previously published PHENIX results on elliptical triangular flow an independent via two-particle correlation...
The recently developed technique of Cyclotron Radiation Emission Spectroscopy (CRES) uses frequency information from the cyclotron motion an electron in a magnetic bottle to infer its kinetic energy. Here we derive expected radio-frequency signal waveguide CRES apparatus first principles. We demonstrate that frequency-domain is rich about electron's kinematic parameters and extract set measurables suitably designed system are sufficient for disentangling energy rest features. This lays...
In relativistic heavy-ion collisions, the analysis of charmonium yields normalized to those in $p\phantom{\rule{0}{0ex}}p$ collisions has been shown reveal final-state interactions occurring hot and dense strongly interacting matter created such events. However, until recently, similar analyses measured smaller collision systems---$p\phantom{\rule{0}{0ex}}A$ versus $p\phantom{\rule{0}{0ex}}p$---were performed terms cold nuclear effects. The measurements reported by PHENIX Collaboration...
The ADMX Collaboration gathered data for its Run 1A axion dark matter search from January 2017 to June 2017, scanning with an haloscope over the frequency range 645–680 MHz (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>2.66</a:mn><a:mi>–</a:mi><a:mn>2.81</a:mn><a:mtext> </a:mtext><a:mtext> </a:mtext><a:mi mathvariant="normal">μ</a:mi><a:mi>eV</a:mi></a:mrow></a:math> in mass) at Dine-Fischler-Srednicki-Zhitnitskii (DFSZ) sensitivity. resulting found no...