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Bibliografías temáticas / Atomki anomaly

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Artículos de revistas

Literatura académica sobre el tema "Atomki anomaly"

Autor: Grafiati

Publicado: 22 de febrero de 2023

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Artículos de revistas sobre el tema "Atomki anomaly"

1

Liu, Chang-Yong. "Investigating the Atomki anomaly in the framework of axial (ABJ) anomaly." Modern Physics Letters A 36, no. 12 (2021): 2150080. http://dx.doi.org/10.1142/s0217732321500802.

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An anomaly observed in the 8Be nuclear transition by the Atomki collaboration hints at a light, neutral boson decaying into an [Formula: see text] pair with a mass of about 17 MeV. In this paper, we study the Atomki anomaly in the framework of axial (ABJ) anomaly. Some theoretical results indicate that the X17 particle is the color singlet pseudoscalar. We take the X17 particle as a pseudoscalar meson [Formula: see text] system which has the axial (ABJ) anomaly, where [Formula: see text] denotes the up quark. Besides this, we also give an interpretation for E38 particle with a mass of about 38

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2

Yamamoto, Yasuhiro. "Atomki anomaly and the Secluded Dark Sector." EPJ Web of Conferences 168 (2018): 06007. http://dx.doi.org/10.1051/epjconf/201816806007.

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The Atomiki anomaly can be interpreted as a new light vector boson. If such a new particle exists, it could be a mediator between the Standard Model sector and the dark sector including the dark matter. We discussed some simple effective models with these particles. In the models, the secluded dark matter models are good candidates to satisfy the thermal relic abundance. In particular, we found that the dark matter self-interaction can be large enough to solve the small scale structure puzzles if the dark matter is a fermion.

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3

Zhang, Xilin, and Gerald A. Miller. "Can a protophobic vector boson explain the ATOMKI anomaly?" Physics Letters B 813 (February 2021): 136061. http://dx.doi.org/10.1016/j.physletb.2021.136061.

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4

Bordes, José, Hong-Mo Chan, and Sheung Tsun Tsou. "Accommodating three low-scale anomalies (g − 2, Lamb shift, and Atomki) in the framed Standard Model." International Journal of Modern Physics A 34, no. 25 (2019): 1950140. http://dx.doi.org/10.1142/s0217751x19501409.

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The framed Standard Model (FSM) predicts a [Formula: see text] boson with mass around 20 MeV in the “hidden sector,” which mixes at tree level with the standard Higgs [Formula: see text] and hence acquires small couplings to quarks and leptons which can be calculated in the FSM apart from the mixing parameter [Formula: see text]. The exchange of this mixed state [Formula: see text] will contribute to [Formula: see text] and to the Lamb shift. By adjusting [Formula: see text] alone, it is found that the FSM can satisfy all present experimental bounds on the [Formula: see text] and Lamb shift an

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5

Suzuki, Tohru. "Bandgap Anomaly, Atomic Ordering, and Their Applications." MRS Bulletin 22, no. 7 (1997): 33–37. http://dx.doi.org/10.1557/s0883769400033388.

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In 1916 a group of Russian chemists—Kurnakov and his colleagues—discovered that slowly cooled CuxAu1 − xmetal alloys had anomalously low electrical resistivities at simple compositions of CuAu and Cu3Au. Nine years later in 1925, Swedish physicists Johansson and Linde found by x-ray-diffraction experiments that the alloys had ordered structures on the face-centered-cubic lattice, now called CuAu I-type and AuCu3-type. Two years later, Johansson and Linde discovered CuPt-type ordering in Cu0.5Pt0.5 alloy by noticing a similar anomaly in their electrical-resistivity measurements for CuxPt1 − x.

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6

Giusti, Leonardo, and Alessandro Strumia. "Atomic parity violation and the HERA anomaly." Physics Letters B 410, no. 2-4 (1997): 229–32. http://dx.doi.org/10.1016/s0370-2693(97)00982-9.

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7

Persson, J. R. "Table of hyperfine anomaly in atomic systems." Atomic Data and Nuclear Data Tables 99, no. 1 (2013): 62–68. http://dx.doi.org/10.1016/j.adt.2012.04.002.

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8

Ouyang Haoyi, 欧阳浩艺, 陈婉钧 Chen Wanjun, 李海 Li Hai та 杨初平 Yang Chuping. "平整表面反射率异常的单像素检测理论". Laser & Optoelectronics Progress 58, № 12 (2021): 1212003. http://dx.doi.org/10.3788/lop202158.1212003.

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9

Tran Tan, Hoang Bao, and Andrei Derevianko. "Implications of W-Boson Mass Anomaly for Atomic Parity Violation." Atoms 10, no. 4 (2022): 149. http://dx.doi.org/10.3390/atoms10040149.

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We consider the implications of the recent measurement of the W-boson mass MW=80,433.5±9.4MeV/c2 for atomic parity violation experiments. We show that the change in MW shifts the Standard Model prediction for the 133Cs nuclear weak charge to QW(133Cs)=−73.11(1), i.e., by 8.5σ from its current value, and the proton weak charge by 2.7%. The shift in QW(133Cs) ameliorates the tension between existing determinations of its value and motivates more accurate atomic theory calculations, while the shift in QW(p) inspires next-generation atomic parity violation experiments with hydrogen. Using our revi

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10

Smirnova, Daria A., Pramod Padmanabhan, and Daniel Leykam. "Parity anomaly laser." Optics Letters 44, no. 5 (2019): 1120. http://dx.doi.org/10.1364/ol.44.001120.

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