I have not yet looked at the data but I do hve one question: The tracks presumably emanate from the point of collision of the p pbar. Is the experiment engineered such that all events have a common origin? I am guessing no but would like to know one way or the other.
", "messages": [ { "id": "329724", "postDate": "05/17/2018 03:49:11", "content": "I have not yet looked at the data but I do hve one question: The tracks presumably emanate from the point of collision of the p pbar. Is the experiment engineered such that all events have a common origin? I am guessing no but would like to know one way or the other.
", "rawMarkdown": "I have not yet looked at the data but I do hve one question: The tracks presumably emanate from the point of collision of the p pbar. Is the experiment engineered such that all events have a common origin? I am guessing no but would like to know one way or the other.", "votes": null }, { "id": "329739", "postDate": "05/17/2018 04:46:51", "content": "The annexed document, section 3.1/2 specifies that the collisions occur around (0,0,0) but not necessarily at (0,0,0). If you'll look into particles file you'll see for each particle where the track originates. Keep in mind that at test time particles file doesn't exist as that information is not available from the detectors.
", "rawMarkdown": "The [annexed document][1], section 3.1/2 specifies that the collisions occur around (0,0,0) but not necessarily at (0,0,0). If you'll look into particles file you'll see for each particle where the track originates. Keep in mind that at test time particles file doesn't exist as that information is not available from the detectors.\n\n\n [1]: https://kaggle2.blob.core.windows.net/forum-message-attachments/321278/9331/trackml-participant-document-particle-v1.0.pdf", "votes": null }, { "id": "329994", "postDate": "05/17/2018 19:16:29", "content": "Does the device detect neutrons? Also, does every track visibly exit the detector?
", "rawMarkdown": "Does the device detect neutrons? Also, does every track visibly exit the detector?", "votes": null }, { "id": "330034", "postDate": "05/17/2018 21:47:16", "content": "Neutrons are not detected. Some particles can interact within the detector and create new particles and stop there.
", "rawMarkdown": "Neutrons are not detected. Some particles can interact within the detector and create new particles and stop there.", "votes": null } ], "comments": [ { "id": 329739, "author_name": "profetul", "author_url": "", "post_date": "05/17/2018 04:46:51", "content": "The annexed document, section 3.1/2 specifies that the collisions occur around (0,0,0) but not necessarily at (0,0,0). If you'll look into particles file you'll see for each particle where the track originates. Keep in mind that at test time particles file doesn't exist as that information is not available from the detectors.
", "votes": null, "replies": [] }, { "id": 329994, "author_name": "petewills", "author_url": "", "post_date": "05/17/2018 19:16:29", "content": "Does the device detect neutrons? Also, does every track visibly exit the detector?
", "votes": null, "replies": [ { "id": 330034, "author_name": "droussea", "author_url": "", "post_date": "05/17/2018 21:47:16", "content": "Neutrons are not detected. Some particles can interact within the detector and create new particles and stop there.
", "votes": null, "replies": [] } ] } ], "raw_markdown_by_id": { "329724": "I have not yet looked at the data but I do hve one question: The tracks presumably emanate from the point of collision of the p pbar. Is the experiment engineered such that all events have a common origin? I am guessing no but would like to know one way or the other.", "329739": "The [annexed document][1], section 3.1/2 specifies that the collisions occur around (0,0,0) but not necessarily at (0,0,0). If you'll look into particles file you'll see for each particle where the track originates. Keep in mind that at test time particles file doesn't exist as that information is not available from the detectors.\n\n\n [1]: https://kaggle2.blob.core.windows.net/forum-message-attachments/321278/9331/trackml-participant-document-particle-v1.0.pdf", "329994": "Does the device detect neutrons? Also, does every track visibly exit the detector?", "330034": "Neutrons are not detected. Some particles can interact within the detector and create new particles and stop there." }, "source": "meta" }