使用CSI数据对瘦恐惧症暗物质的相干约束

论文标题

使用CSI数据对瘦恐惧症暗物质的相干约束

A COHERENT constraint on leptophobic dark matter using CsI data

论文作者

COHERENT Collaboration, Akimov, D., An, P., Awe, C., Barbeau, P. S., Becker, B., Belov, V., Bernardi, I., Blackston, M. A., Bock, C., Bolozdynya, A., Bouabid, R., Browning, J., Cabrera-Palmer, B., Chernyak, D., Conley, E., Daughhetee, J., Detwiler, J., Ding, K., Durand, M. R., Efremenko, Y., Elliot, S. R., Fabris, L., Febbraro, M., Rosso, A. Gallo, Galindo-Uribarri, A., Green, M. P., Heath, M. R., Hedges, S., Hoang, D., Hughes, M., Johnson, B. A., Johnson, T., Khromov, A., Konovalov, A., Kozlova, E., Kupman, A., Li, L., Link, J. M., Liu, J., Major, A., Mann, K., Markoff, D. M., Mastroberti, J., Mattingly, J., Mueller, P. E., Newby, J., Parno, D. S., Penttila, S. I., Pershey, D., Prior, C., Rapp, R., Ray, H., Razuvaeva, O., Reyna, D., Rich, G. C., Ross, J., Rudik, D., Runge, J., Salvat, D. J., Salyapongse, A. M., Sander, J., Scholberg, K., Shakirov, A., Simakov, G., Snow, W. M., Sosnovstsev, V., Suh, B., Tayloe, R., Tellez-Giron-Flores, K., Tolstukhin, I., Ujah, E., Vanderwerp, J., Varner, R. L., Virtue, C. J., Visser, G., Wongjirad, T., Yen, W. -R., Yoo, J., Yu, C. -H., Zettlemoyer, J.

论文摘要

我们使用来自连贯的CSI [NA]闪烁检测器的数据来限制亚GEV瘦恐惧症暗物质模型。该检测器的建造是为了观察到相干弹性中微子核散射的低能核后坐力。这些功能可以搜索在散布中子源中产生的暗物质颗粒，该粒子由载体门户粒子介导，质量在2至400 meV/c $^2 $之间。没有观察到暗物质的证据，并且放置了介体耦合到夸克的限制。这种约束通过两个数量级对先前的结果提高。这个新探索的参数空间探测了暗物质遗物丰度的区域，当介体质量大约是暗物质质量的两倍时，瘦小的暗物质就可以解释。连贯性在这些质量的瘦恐惧症暗物质上设定了最佳限制。

We use data from the COHERENT CsI[Na] scintillation detector to constrain sub-GeV leptophobic dark matter models. This detector was built to observe low-energy nuclear recoils from coherent elastic neutrino-nucleus scattering. These capabilities enable searches for dark matter particles produced at the Spallation Neutron Source mediated by a vector portal particle with masses between 2 and 400 MeV/c$^2$. No evidence for dark matter is observed and a limit on the mediator coupling to quarks is placed. This constraint improves upon previous results by two orders of magnitude. This newly explored parameter space probes the region where the dark matter relic abundance is explained by leptophobic dark matter when the mediator mass is roughly twice the dark matter mass. COHERENT sets the best constraint on leptophobic dark matter at these masses.

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