In particle physics, the tracking is the act of measuring the direction and magnitude of charged particlesmomenta. The particles entering a tracker (the device used for tracking), release part of their energy in the device: the tracker has to be finely segmented in order to be able to reconstruct with good precision where the particle passed. Since the tracking is usually made in a region where a magnetic field is present, it is possible to reconstruct part of the helix made by the particle inside the tracker (that is called track), and from the track parameters, and by knowing the mass of the particle under study (which is known by the use of particle identification), it is possible to reconstruct the actual direction and magnitude of the particle momenta. From these information the tracking of charged particles can be used to reconstruct secondary decays, this can be done for B-tagging (in experiments like CDF or at LHC) or to fully reconstruct events (like in BaBar and Belle).
Tracking, one of the first freefall skills learned by a novice skydiver, is the technique of assuming a body position that allows the skydiver to move horizontally while freefalling.
Although there are many variations of the basic body position it essentially involves the skydiver moving out of the traditional face to earth arched position, straightening the legs, bringing the arms to the sides and de-arching, using the body to cup the air as a means of providing greater lift. There is, however, debate over what exactly constitutes the most efficient tracking position (providing the best glide ratio) especially concerning how far (if at all) the skydiver's legs should be spread. Some variations of the tracking position work well for some individuals and not so well for others. Also, when a skydiver gains experience, his or her preferred body position often changes.
It is claimed that good trackers can cover nearly as much ground as the distance they fall, approaching a glide ratio of 1:1. It is known that the fall rate of a skydiver in an efficient track is significantly lower than that of one falling in a traditional face-to-earth position; the former reaching speeds as low as 90mph, the latter averaging around the 120mph mark.
France, who were hammered 4-1 by Mexico in their Group ‘A’ opener, got their campaign back on track when Teji Savanier netted a stoppage-time winner in their 4-3 victory over South Africa...Spain moved to the top of Group ‘C’ as Mikel Oyarzabal’s late strike — their first goal of the tournament — downed Australia 1-0.
July 25 (Reuters) - Damian Lillard said the U.S ... We still can accomplish what we came here to accomplish." ... It comes after the U.S ... The team will look to get back on track when they take on Iran while France will meet the Czechs as group play continues.Reporting by Rory Carroll in Los Angeles Editing by TobyDavis ... ....
What theFEC reports tell us about the midterm elections MORE, Jacky RosenJacklyn (Jacky) Sheryl RosenBipartisan group says it's still on track after setback on Senate floor The Hill's Morning Report - Biden renews families plan pitch; Senate prepares to bring infrastructure ...
BENGALURU ...The government is now making efforts to track down the remaining 33% or 27.9 lakh and administer the dose on priority. This group includes healthcare workers and frontline workers and people above 18 years of age ... The remaining 21 districts are lagging, data as on July 20 shows ... For Covaxin, the interval is 4-6 weeks ... Start a Conversation. .
The appointment is the latest in the group's active profile in social campaigns ... Most of the group's main tracks that were released recently ― such as "Dynamite," Butter" and "Permission to Dance" ― were sung in English with the exception of "Life Goes On," which was the main track for "BE," an album the septet took part in producing.
“I hope the deal goes through,” says Lebanon’s Scott Fetcho, a former Fairgrounds driver whose son Dylan is the defending track champion ... (SMI) to assume management of the track. SMI would assign a BristolSpeedway management team to operate the track, with a promise to invest millions of dollars in upgrades ... “It gives us a chance to run other tracks.
The Frisian driver's 1.20.511 was quickly improved upon in the second and third groups, which is not uncommon given the qualifying format in Formula E, where track conditions improve over the course of the qualifying sessions.
In an appearance on Fox News earlier this week, Sen, Lindsey GrahamLindsey Olin GrahamSenate braces for a nasty debt ceiling fight Bipartisan group says it's still on track after setback on Senate floor How Sen ... it's still on track after setback on Senate floor OvernightDefense.
(Reuters) – Damian Lillard said the U.S ...Team USA gave up a late lead en route to a 83-76 loss after poor shooting performances by Lillard, Kevin Durant and Devin Booker... The team will look to get back on track when they take on Iran while France will meet the Czechs as group play continues ... .
Big names ... Yet Kiesenhofer, a national time trial champion, appeared to have it all under control as she gritted her teeth around the final laps of the Fuji race track ... "I attacked and with the group we worked more or less together ... She is the first Austrian to win a cycling gold since the Adool Schmal's victory on the track at the 1896 AthensGames.