Proposition of FSR Photon Suppression Employing a Two-Positron Decay Dark Matter Model to Explain Positron Anomaly in Cosmic Rays
The origin of an anomalous excess of high-energy (about 100 GeV and higher) positrons in cosmic rays is one of the rare problems in this field, which is proposed to be solved with dark matter (DM). Attempts to solve this problem are faced with the issue of having to satisfy the data on cosmic positr...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-08-01
|
| Series: | Universe |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2218-1997/9/8/370 |
| _version_ | 1797583096168579072 |
|---|---|
| author | Ramin Barak Konstantin Belotsky Ekaterina Shlepkina |
| author_facet | Ramin Barak Konstantin Belotsky Ekaterina Shlepkina |
| author_sort | Ramin Barak |
| collection | DOAJ |
| description | The origin of an anomalous excess of high-energy (about 100 GeV and higher) positrons in cosmic rays is one of the rare problems in this field, which is proposed to be solved with dark matter (DM). Attempts to solve this problem are faced with the issue of having to satisfy the data on cosmic positrons and cosmic gamma radiation, which inevitably accompanies positron production, such as FSR (final state radiation), simultaneously. We have been trying to come up with a solution by means of two approaches: making assumptions (*) about the spatial distribution of the dark matter and (**) about the physics of its interactions. This work is some small final step of a big investigation regarding the search for gamma suppression by employing the second approach, and a model with a doubly charged particle decaying into two positrons (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>X</mi><mrow><mo>+</mo><mo>+</mo></mrow></msup><mo>→</mo><msup><mi>e</mi><mo>+</mo></msup><msup><mi>e</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula>) is suggested as the most prospective one from those considered before. |
| first_indexed | 2024-03-10T23:32:00Z |
| format | Article |
| id | doaj.art-c2c3e05d49af40738a2375eb01ff1033 |
| institution | Directory Open Access Journal |
| issn | 2218-1997 |
| language | English |
| last_indexed | 2024-03-10T23:32:00Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj.art-c2c3e05d49af40738a2375eb01ff10332023-11-19T03:16:43ZengMDPI AGUniverse2218-19972023-08-019837010.3390/universe9080370Proposition of FSR Photon Suppression Employing a Two-Positron Decay Dark Matter Model to Explain Positron Anomaly in Cosmic RaysRamin Barak0Konstantin Belotsky1Ekaterina Shlepkina2MEPhI (Moscow Engineering Physics Institute), National Research Nuclear University, Kashirskoe Shosse 31, 115409 Moscow, RussiaMEPhI (Moscow Engineering Physics Institute), National Research Nuclear University, Kashirskoe Shosse 31, 115409 Moscow, RussiaMEPhI (Moscow Engineering Physics Institute), National Research Nuclear University, Kashirskoe Shosse 31, 115409 Moscow, RussiaThe origin of an anomalous excess of high-energy (about 100 GeV and higher) positrons in cosmic rays is one of the rare problems in this field, which is proposed to be solved with dark matter (DM). Attempts to solve this problem are faced with the issue of having to satisfy the data on cosmic positrons and cosmic gamma radiation, which inevitably accompanies positron production, such as FSR (final state radiation), simultaneously. We have been trying to come up with a solution by means of two approaches: making assumptions (*) about the spatial distribution of the dark matter and (**) about the physics of its interactions. This work is some small final step of a big investigation regarding the search for gamma suppression by employing the second approach, and a model with a doubly charged particle decaying into two positrons (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>X</mi><mrow><mo>+</mo><mo>+</mo></mrow></msup><mo>→</mo><msup><mi>e</mi><mo>+</mo></msup><msup><mi>e</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula>) is suggested as the most prospective one from those considered before.https://www.mdpi.com/2218-1997/9/8/370dark matterpositron anomalyIGRBFSR suppressionMC generators |
| spellingShingle | Ramin Barak Konstantin Belotsky Ekaterina Shlepkina Proposition of FSR Photon Suppression Employing a Two-Positron Decay Dark Matter Model to Explain Positron Anomaly in Cosmic Rays Universe dark matter positron anomaly IGRB FSR suppression MC generators |
| title | Proposition of FSR Photon Suppression Employing a Two-Positron Decay Dark Matter Model to Explain Positron Anomaly in Cosmic Rays |
| title_full | Proposition of FSR Photon Suppression Employing a Two-Positron Decay Dark Matter Model to Explain Positron Anomaly in Cosmic Rays |
| title_fullStr | Proposition of FSR Photon Suppression Employing a Two-Positron Decay Dark Matter Model to Explain Positron Anomaly in Cosmic Rays |
| title_full_unstemmed | Proposition of FSR Photon Suppression Employing a Two-Positron Decay Dark Matter Model to Explain Positron Anomaly in Cosmic Rays |
| title_short | Proposition of FSR Photon Suppression Employing a Two-Positron Decay Dark Matter Model to Explain Positron Anomaly in Cosmic Rays |
| title_sort | proposition of fsr photon suppression employing a two positron decay dark matter model to explain positron anomaly in cosmic rays |
| topic | dark matter positron anomaly IGRB FSR suppression MC generators |
| url | https://www.mdpi.com/2218-1997/9/8/370 |
| work_keys_str_mv | AT raminbarak propositionoffsrphotonsuppressionemployingatwopositrondecaydarkmattermodeltoexplainpositronanomalyincosmicrays AT konstantinbelotsky propositionoffsrphotonsuppressionemployingatwopositrondecaydarkmattermodeltoexplainpositronanomalyincosmicrays AT ekaterinashlepkina propositionoffsrphotonsuppressionemployingatwopositrondecaydarkmattermodeltoexplainpositronanomalyincosmicrays |