Toward a pulsed antihydrogen beam for WEP tests in AEgIS by Huck Saiva, Auzins Marcis, Bergmann Benedikt, Burian Petr, Brusa Roberto S., Camper Antoine, Caravita Ruggero, Castelli Fabrizio, Ciuryło Roman, Consolati Giovanni, Doser Michael, Farricker Aaron, Glöggler Lisa T., Graczykowski Łukasz, Grosbart Malgorzata, Guatieri Francesco, Gusakova Natali, Haider Stefan, Janik Malgorzata, Kasprowicz Grzegorz, Khatri Ghanshyambhai, Kłosowski Łukasz, Kornakov Georgy, Krumins Valts, Lappo Lidia, Linek Adam, Malbrunot Chloé, Mariazzi Sebastiano, Nowak Lilian, Nowicka Dorota, Oswald Emmanuel, Penasa Luca, Petracek Vojtech, Piwiński Mariusz, Pospisil Stanislav, Povolo Luca, Prelz Francesco, Rangwala Sadiq, Rienäcker Benjamin, Rodin Volodymyr, Røhne Ole M., Sandaker Heidi, Smolyanskiy Petr, Sowiński Tomasz, Tefelski Dariusz, Volponi Marco, Welsch Carsten, Wolz Tim, Zawada Michal, Zielinski Jakub, Zimmer Christian, Zurlo Nicola

“…AEg̅IS has recently undergone major upgrades to fully benefit from the increased number of colder antiprotons provided by the new ELENA decelerator and to move toward forming a horizontal beam to directly investigate the influence of gravity on the H̅ atoms, thereby probing the Weak Equivalence Principle for antimatter. This contribution gives an overview of these upgrades as well as subsequent results from the first beam times with ELENA.…”
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Fundamental physics from galaxies by Bartlett, DJ

“…</p> <p>We consider modifications to the propagation of light by one of three effects: quantum gravity (QG), a non-zero photon mass and a violation of the Weak Equivalence Principle (WEP). We use spectral lag data of Gamma Ray Bursts from the BATSE satellite to constrain the photon mass to be $m_\gamma < 4.0 \times 10^{-5} \, h \, {\rm eV}/c^2$ and the QG length scale to be $\ell_{\rm QG} < 5.3 \times 10^{-18} \, h \, {\rm \, GeV^{-1}}$ at 95\% confidence, WEP to $\Delta \gamma < 2.1 \times 10^{-15}$ at $1 \sigma$ confidence between photon energies of $25 {\rm \, keV}$ and $325 {\rm \, keV}$, and we demonstrate that these constraints are robust to how one models other contributions to the signal.…”

Pulsed Production of Antihydrogen in AEgIS by Zurlo N., Auzins M., Bergmann B., Bonomi G., Brusa R.S., Burian P., Camper A., Castelli F., Ciury R., Consolati G., Doser M., Farricker A., Glöggler L., Graczykowski Ł., Grosbart M., Guatieri F., Gusakova N., Haider S., Huck S., Janik M., Kasprowicz G., Khatri G., Kłosowski Ł., Kornakov G., Krumins V., Lappo L., Linek A., Malamant J., Malbrunot C., Mariazzi S., Nowak L., Nowicka D., Oswald E., Pagano D., Penasa L., Piwiński M., Pospisil S., Povolo L., Prelz F., Rangwala S., Rienäcker B., Røhne O.M., Rotondi A., Sandaker H., Smolyanskiy P., Sowiński T., Tefelski D., Testera G., Volponi M., Welsch C.P., Wolz T., Zawada M., Zielinski J.

“…Low-temperature antihydrogen atoms are an effective tool to probe the validity of the fundamental laws of Physics, for example the Weak Equivalence Principle (WEP) for antimatter, and -generally speaking- it is obvious that colder atoms will increase the level of precision. …”
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The space cold atom interferometer for testing the equivalence principle in the China Space Station by Meng He, Xi Chen, Jie Fang, Qunfeng Chen, Huanyao Sun, Yibo Wang, Jiaqi Zhong, Lin Zhou, Chuan He, Jinting Li, Danfang Zhang, Guiguo Ge, Wenzhang Wang, Yang Zhou, Xiao Li, Xiaowei Zhang, Lei Qin, Zhiyong Chen, Rundong Xu, Yan Wang, Zongyuan Xiong, Junjie Jiang, Zhendi Cai, Kuo Li, Guo Zheng, Weihua Peng, Jin Wang, Mingsheng Zhan

“…Abstract The precision of the weak equivalence principle (WEP) test using atom interferometers (AIs) is expected to be extremely high in microgravity environment. …”
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