The 750 GeV diphoton excess in particle physics was an anomaly in data collected at the Large Hadron Collider (LHC) in 2015, which could have been an indication of a new particle or resonance. The anomaly was absent in data collected in 2016, suggesting that the diphoton excess was a statistical fluctuation. In the interval between the December 2015 and August 2016 results, the anomaly generated considerable interest in the scientific community, including about 500 theoretical studies. The hypothetical particle was denoted by the Greek letter Ϝ (pronounced digamma) in the scientific literature, owing to the decay channel in which the anomaly occurred. The data, however, were always less than five standard deviations (sigma) different from that expected if there was no new particle, and, as
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| rdfs:label
| - 750 GeV diphoton excess (en)
- Exceso de difotones a 750 GeV (es)
- Excesso de difóton de 750 GeV (pt)
- 750GeV双光子信号 (zh)
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| rdfs:comment
| - O excesso de difóton de 750 GeV na física de partículas foi uma anomalia nos dados coletados no Large Hadron Collider (LHC) em 2015, o que poderia ter sido uma indicação de uma nova partícula ou ressonância. A anomalia estava ausente nos dados coletados em 2016, sugerindo que o excesso de difóton foi uma flutuação estatística. No intervalo entre os resultados de dezembro de 2015 e agosto de 2016, a anomalia gerou considerável interesse na comunidade científica, incluindo cerca de 500 estudos teóricos. (pt)
- 在粒子物理学中的750GeV双光子信号是大型强子对撞机(LHC)在收集数据后的发生的异常，2015年时被认为，这可能是一个新粒子或是指示共振从2016年的结果来看，这种异常是因为在数据收集的缺失，这表明双光子信号是一个统计的波动。在2015年12月和2016年8月之间，这种异常极大地引发了科学界的兴趣，其中包括约500篇的理论研究。 该假想粒子在科学文献中被表示为希腊字母 Ϝ（发音digamma）。由于在其中 发生衰减信道异常的数据。其中的数据 ，总是小于五个标准偏差（sigma）与预期不同的是，没有新的粒子被发现，并且因为该异常从未达到统计学所需要的宣布粒子的发现，这也是2016年8月的出版物中否认digamma的存在性的理由。 (zh)
- The 750 GeV diphoton excess in particle physics was an anomaly in data collected at the Large Hadron Collider (LHC) in 2015, which could have been an indication of a new particle or resonance. The anomaly was absent in data collected in 2016, suggesting that the diphoton excess was a statistical fluctuation. In the interval between the December 2015 and August 2016 results, the anomaly generated considerable interest in the scientific community, including about 500 theoretical studies. The hypothetical particle was denoted by the Greek letter Ϝ (pronounced digamma) in the scientific literature, owing to the decay channel in which the anomaly occurred. The data, however, were always less than five standard deviations (sigma) different from that expected if there was no new particle, and, as (en)
- El exceso de difotones a 750 GeV en física de partículas es una anomalía en los datos del acelerador de partículas LHC en 2015, que podría ser una indicación de una nueva partícula o resonancia. Aunque aún no hay acuerdo sobre el nombre de dicha partícula hipotética, un nombre propuesto es la letra Ϝ (digamma), debido al canal en el que se ha detectado la anomalía, aunque también se utilizan otros símbolos como Ϝ(750), ϕ y X. En caso de ser confirmada, la digamma podría ser la primera partícula elemental más allá del Modelo Estándar descubierta. No se espera que el exceso de difotones esté causado por errores sistemáticos experimentales o teóricos. Sin embargo, los datos difieren menos de 5 desviaciones estándar (sigmas) del resultado esperado si no hubiera una nueva partícula, y por tan (es)
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| - Possible production and decay mechanism of the digamma resonance at LHC. (en)
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| - Resonance of mass ≈750 GeV decaying into two photons could have been seen by CERN in 2015 (en)
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| - Refuted; absent in August 2016 data (en)
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| - The 750 GeV diphoton excess in particle physics was an anomaly in data collected at the Large Hadron Collider (LHC) in 2015, which could have been an indication of a new particle or resonance. The anomaly was absent in data collected in 2016, suggesting that the diphoton excess was a statistical fluctuation. In the interval between the December 2015 and August 2016 results, the anomaly generated considerable interest in the scientific community, including about 500 theoretical studies. The hypothetical particle was denoted by the Greek letter Ϝ (pronounced digamma) in the scientific literature, owing to the decay channel in which the anomaly occurred. The data, however, were always less than five standard deviations (sigma) different from that expected if there was no new particle, and, as such, the anomaly never reached the accepted level of statistical significance required to announce a discovery in particle physics. After the August 2016 results, interest in the anomaly sank as it was considered a statistical fluctuation.Indeed, a Bayesian analysis of the anomaly found that whilst data collected in 2015 constituted "substantial" evidence for the digamma on the Jeffreys scale, data collected in 2016 combined with that collected in 2015 was evidence against the digamma. (en)
- El exceso de difotones a 750 GeV en física de partículas es una anomalía en los datos del acelerador de partículas LHC en 2015, que podría ser una indicación de una nueva partícula o resonancia. Aunque aún no hay acuerdo sobre el nombre de dicha partícula hipotética, un nombre propuesto es la letra Ϝ (digamma), debido al canal en el que se ha detectado la anomalía, aunque también se utilizan otros símbolos como Ϝ(750), ϕ y X. En caso de ser confirmada, la digamma podría ser la primera partícula elemental más allá del Modelo Estándar descubierta. No se espera que el exceso de difotones esté causado por errores sistemáticos experimentales o teóricos. Sin embargo, los datos difieren menos de 5 desviaciones estándar (sigmas) del resultado esperado si no hubiera una nueva partícula, y por tanto la anomalía no alcanza el nivel de significación estadística aplicado usualmente en física. (es)
- O excesso de difóton de 750 GeV na física de partículas foi uma anomalia nos dados coletados no Large Hadron Collider (LHC) em 2015, o que poderia ter sido uma indicação de uma nova partícula ou ressonância. A anomalia estava ausente nos dados coletados em 2016, sugerindo que o excesso de difóton foi uma flutuação estatística. No intervalo entre os resultados de dezembro de 2015 e agosto de 2016, a anomalia gerou considerável interesse na comunidade científica, incluindo cerca de 500 estudos teóricos. (pt)
- 在粒子物理学中的750GeV双光子信号是大型强子对撞机(LHC)在收集数据后的发生的异常，2015年时被认为，这可能是一个新粒子或是指示共振从2016年的结果来看，这种异常是因为在数据收集的缺失，这表明双光子信号是一个统计的波动。在2015年12月和2016年8月之间，这种异常极大地引发了科学界的兴趣，其中包括约500篇的理论研究。 该假想粒子在科学文献中被表示为希腊字母 Ϝ（发音digamma）。由于在其中 发生衰减信道异常的数据。其中的数据 ，总是小于五个标准偏差（sigma）与预期不同的是，没有新的粒子被发现，并且因为该异常从未达到统计学所需要的宣布粒子的发现，这也是2016年8月的出版物中否认digamma的存在性的理由。 (zh)
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- one photon + one Z-boson (en)
- two W bosons (en)
- two Z-bosons (en)
- two gluons (en)
- two photons (en)
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