Hunting down the X17 boson at the CERN SPS
© The Author(s) 2020..
Recently, the ATOMKI experiment has reported new evidence for the excess of e + e - events with a mass ∼ 17 MeV in the nuclear transitions of 4 He, that they previously observed in measurements with 8 Be. These observations could be explained by the existence of a new vector X 17 boson. So far, the search for the decay X 17 → e + e - with the NA64 experiment at the CERN SPS gave negative results. Here, we present a new technique that could be implemented in NA64 aiming to improve the sensitivity and to cover the remaining X 17 parameter space. If a signal-like event is detected, an unambiguous observation is achieved by reconstructing the invariant mass of the X 17 decay with the proposed method. To reach this goal an optimization of the X 17 production target, as well as an efficient and accurate reconstruction of two close decay tracks, is required. A dedicated analysis of the available experimental data making use of the trackers information is presented. This method provides independent confirmation of the NA64 published results [1], validating the tracking procedure. The detailed Monte Carlo study of the proposed setup and the background estimate show that the goal of the proposed search is feasible.
Medienart: |
E-Artikel |
---|
Erscheinungsjahr: |
2020 |
---|---|
Erschienen: |
2020 |
Enthalten in: |
Zur Gesamtaufnahme - volume:80 |
---|---|
Enthalten in: |
The European physical journal. C, Particles and fields - 80(2020), 12 vom: 24., Seite 1159 |
Sprache: |
Englisch |
---|
Beteiligte Personen: |
NA64 Collaboration [VerfasserIn] |
---|
Links: |
---|
Themen: |
---|
Anmerkungen: |
Date Revised 19.02.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
---|
doi: |
10.1140/epjc/s10052-020-08725-x |
---|
funding: |
|
---|---|
Förderinstitution / Projekttitel: |
|
PPN (Katalog-ID): |
NLM319080706 |
---|
LEADER | 01000naa a22002652 4500 | ||
---|---|---|---|
001 | NLM319080706 | ||
003 | DE-627 | ||
005 | 20231225170710.0 | ||
007 | cr uuu---uuuuu | ||
008 | 231225s2020 xx |||||o 00| ||eng c | ||
024 | 7 | |a 10.1140/epjc/s10052-020-08725-x |2 doi | |
028 | 5 | 2 | |a pubmed24n1063.xml |
035 | |a (DE-627)NLM319080706 | ||
035 | |a (NLM)33343226 | ||
040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
041 | |a eng | ||
100 | 0 | |a NA64 Collaboration |e verfasserin |4 aut | |
245 | 1 | 0 | |a Hunting down the X17 boson at the CERN SPS |
264 | 1 | |c 2020 | |
336 | |a Text |b txt |2 rdacontent | ||
337 | |a ƒaComputermedien |b c |2 rdamedia | ||
338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
500 | |a Date Revised 19.02.2022 | ||
500 | |a published: Print-Electronic | ||
500 | |a Citation Status PubMed-not-MEDLINE | ||
520 | |a © The Author(s) 2020. | ||
520 | |a Recently, the ATOMKI experiment has reported new evidence for the excess of e + e - events with a mass ∼ 17 MeV in the nuclear transitions of 4 He, that they previously observed in measurements with 8 Be. These observations could be explained by the existence of a new vector X 17 boson. So far, the search for the decay X 17 → e + e - with the NA64 experiment at the CERN SPS gave negative results. Here, we present a new technique that could be implemented in NA64 aiming to improve the sensitivity and to cover the remaining X 17 parameter space. If a signal-like event is detected, an unambiguous observation is achieved by reconstructing the invariant mass of the X 17 decay with the proposed method. To reach this goal an optimization of the X 17 production target, as well as an efficient and accurate reconstruction of two close decay tracks, is required. A dedicated analysis of the available experimental data making use of the trackers information is presented. This method provides independent confirmation of the NA64 published results [1], validating the tracking procedure. The detailed Monte Carlo study of the proposed setup and the background estimate show that the goal of the proposed search is feasible | ||
650 | 4 | |a Journal Article | |
700 | 1 | |a Depero, E |e verfasserin |4 aut | |
700 | 1 | |a Andreev, Yu M |e verfasserin |4 aut | |
700 | 1 | |a Banerjee, D |e verfasserin |4 aut | |
700 | 1 | |a Bernhard, J |e verfasserin |4 aut | |
700 | 1 | |a Burtsev, V E |e verfasserin |4 aut | |
700 | 1 | |a Charitonidis, N |e verfasserin |4 aut | |
700 | 1 | |a Chumakov, A G |e verfasserin |4 aut | |
700 | 1 | |a Cooke, D |e verfasserin |4 aut | |
700 | 1 | |a Crivelli, P |e verfasserin |4 aut | |
700 | 1 | |a Dermenev, A V |e verfasserin |4 aut | |
700 | 1 | |a Donskov, S V |e verfasserin |4 aut | |
700 | 1 | |a Dusaev, R R |e verfasserin |4 aut | |
700 | 1 | |a Enik, T |e verfasserin |4 aut | |
700 | 1 | |a Feshchenko, A |e verfasserin |4 aut | |
700 | 1 | |a Frolov, V N |e verfasserin |4 aut | |
700 | 1 | |a Gardikiotis, A |e verfasserin |4 aut | |
700 | 1 | |a Gerassimov, S G |e verfasserin |4 aut | |
700 | 1 | |a Girod, S |e verfasserin |4 aut | |
700 | 1 | |a Gninenko, S N |e verfasserin |4 aut | |
700 | 1 | |a Hösgen, M |e verfasserin |4 aut | |
700 | 1 | |a Kachanov, V A |e verfasserin |4 aut | |
700 | 1 | |a Karneyeu, A E |e verfasserin |4 aut | |
700 | 1 | |a Kekelidze, G |e verfasserin |4 aut | |
700 | 1 | |a Ketzer, B |e verfasserin |4 aut | |
700 | 1 | |a Kirpichnikov, D V |e verfasserin |4 aut | |
700 | 1 | |a Kirsanov, M M |e verfasserin |4 aut | |
700 | 1 | |a Kolosov, V N |e verfasserin |4 aut | |
700 | 1 | |a Konorov, I V |e verfasserin |4 aut | |
700 | 1 | |a Kovalenko, S G |e verfasserin |4 aut | |
700 | 1 | |a Kramarenko, V A |e verfasserin |4 aut | |
700 | 1 | |a Kravchuk, L V |e verfasserin |4 aut | |
700 | 1 | |a Krasnikov, N V |e verfasserin |4 aut | |
700 | 1 | |a Kuleshov, S V |e verfasserin |4 aut | |
700 | 1 | |a Lyubovitskij, V E |e verfasserin |4 aut | |
700 | 1 | |a Lysan, V |e verfasserin |4 aut | |
700 | 1 | |a Matveev, V A |e verfasserin |4 aut | |
700 | 1 | |a Mikhailov, Yu V |e verfasserin |4 aut | |
700 | 1 | |a Bueno, L Molina |e verfasserin |4 aut | |
700 | 1 | |a Peshekhonov, D V |e verfasserin |4 aut | |
700 | 1 | |a Polyakov, V A |e verfasserin |4 aut | |
700 | 1 | |a Radics, B |e verfasserin |4 aut | |
700 | 1 | |a Rojas, R |e verfasserin |4 aut | |
700 | 1 | |a Rubbia, A |e verfasserin |4 aut | |
700 | 1 | |a Samoylenko, V D |e verfasserin |4 aut | |
700 | 1 | |a Shchukin, D |e verfasserin |4 aut | |
700 | 1 | |a Sieber, H |e verfasserin |4 aut | |
700 | 1 | |a Tikhomirov, V O |e verfasserin |4 aut | |
700 | 1 | |a Tlisova, vI |e verfasserin |4 aut | |
700 | 1 | |a Tlisov, D A |e verfasserin |4 aut | |
700 | 1 | |a Toropin, A N |e verfasserin |4 aut | |
700 | 1 | |a Trifonov, A Yu |e verfasserin |4 aut | |
700 | 1 | |a Vasilishin, B I |e verfasserin |4 aut | |
700 | 1 | |a Arenas, G Vasquez |e verfasserin |4 aut | |
700 | 1 | |a Volkov, P V |e verfasserin |4 aut | |
700 | 1 | |a Volkov, V Yu |e verfasserin |4 aut | |
700 | 1 | |a Ulloa, P |e verfasserin |4 aut | |
773 | 0 | 8 | |i Enthalten in |t The European physical journal. C, Particles and fields |d 2012 |g 80(2020), 12 vom: 24., Seite 1159 |w (DE-627)NLM247482579 |x 1434-6044 |7 nnns |
773 | 1 | 8 | |g volume:80 |g year:2020 |g number:12 |g day:24 |g pages:1159 |
856 | 4 | 0 | |u http://dx.doi.org/10.1140/epjc/s10052-020-08725-x |3 Volltext |
912 | |a GBV_USEFLAG_A | ||
912 | |a GBV_NLM | ||
951 | |a AR | ||
952 | |d 80 |j 2020 |e 12 |b 24 |h 1159 |