Observational Constraints of 30–40 GeV Dark Matter Annihilation in Galaxy Clusters

<div>The total number of photons emitted per one annihilation <svg height="17.3161pt" id="M48" style="vertical-align:-5.528899pt" version="1.1" viewbox="-0.0498162 -11.7872 75.0656 17.3161" width="75.0656pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,.007)"><path d="M480 853C480 879 456 900 424 900C303 900 237 760 239 491L245 -163C246 -299 234 -327 208 -327C187 -327 171 -289 137 -289C112 -289 90 -309 90 -335C90 -363 116 -389 155 -389C277 -389 342 -245 338 99L332 673C330 820 346 844 370 844C396 844 396 808 432 808C460 808 480 826 480 853Z" id="g119-81"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="570" vert-adv-y="570"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,7.438,0)"><path d="M300 -147C201 -63 143 98 143 270S200 602 300 686L282 710C136 610 70 450 70 271V270C70 89 136 -72 282 -170L300 -147Z" id="g113-41"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="346" 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id="g113-49"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="480" vert-adv-y="480"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,40.264,0)"><path d="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z" id="g113-49"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="480" vert-adv-y="480"></glyph.data></g></svg>MeV (solid line) and <svg height="11.927pt" id="M50" style="vertical-align:-3.291101pt" version="1.1" viewbox="-0.0498162 -8.6359 34.2056 11.927" width="34.2056pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M593 650H142L136 622C219 616 224 611 209 531L130 120C114 39 108 34 23 28L17 0H501C518 32 557 130 568 158L540 169C519 132 495 93 469 70C439 43 409 35 332 35C272 35 241 37 225 50C211 61 211 89 222 149L253 320H350C441 320 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Physics Research International

fig2

Figure 2

Figure 2: Observational Constraints of 30–40 GeV Dark Matter Annihilation in Galaxy Clusters 